®
HUMMER MODULE
40 OR 70 WATTS
1
FEATURES
•–55°C to +125°C
•12 to 40 VDC input
•Sync on HUM-70
•Reduce hold-up
capacitance by 80%
•Powers DC/DC converters
with 28 Vin nominal
•Hold-up time
HUM-40 15 µs/µF
HUM-70 8.6 µs/µF
•Low power flag
•Inhibit function
MODELS
POWER OUTPUT
DESCRIPTION
Interpoint’s HUMMER™ Hold-Up Module Series provides a single
product solution to the problem of maintaining electronic system
operation during input power drop-out, typically reducing bulk
capacitance requirements by more than 80%. The HUMMER
module is compatible with the Interpoint DC/DC converters in
Section B1 that have a 28 VDC nominal input and a high input line
of 40 VDC.
The traditional procedure for providing hold-up during power loss is
to buffer the device with enough bulk capacitance to allow a
controlled shutdown to occur or an alternative power source to be
brought on line. The problem with this approach is that very large
capacitor banks are required because the capacitors are charged at
the relatively low voltage at which power fails.
The HUMMER Hold-Up Module provides an alternative with two
important advantages: 1) it effectively reduces the low line voltage
for normal DC/DC converter operation to 12 VDC thereby reducing
power drop-out events, and 2) it charges hold-up capacitors to 40
volts, reducing the capacitance needed to produce a given hold-up
time.
GENERAL OPERATION
The HUMMER module and two external components (a hold-up
capacitor and a diode) are connected between the line source and
the DC/DC converter as shown in Figure 3 (HUMMER Module
System Block Diagram.) If an EMI filter is employed, the HUMMER
module is connected between the filter and the converter). The
module first charges the external capacitor to 40 volts, and then
allows the converter to operate off the line voltage. When the line
voltage drops to between 12 to 18 VDC, a boost converter in the
module supplies an output at the capacitor charging voltage (40
VDC). If power fails (the input voltage drops below 12 VDC), the
converter is powered from the external hold-up capacitor.
HOLD UPMODULE
28 VOLT INPUT
HUM-40
40 watts
HUM-70
70watts
Size (max.): HUM-40, non flanged, Case F2
1.950 x 1.350 x 0.415 inches (49.53 x 34.29 x 10.54 mm)
HUM-40, flanged, Case J2
2.720 x 1.350 x 0.415 inches (69.09 x 34.29 x 10.54 mm)
HUM-70 Case U1
1.505 x 3.005 x 0.400 inches (38.23 x 76.33 x 10.16 mm)
See Section B8, cases F2, J2, and U1, for dimensions.
Weight: HUM-40 50 grams max. (flanged 60 grams typical)
HUM-70 70 grams max.
Screening: Standard or ES. See Section C2 for screening option and Section A5
for ordering information.
SYNC AND INHIBIT
RECOMMENDED OPERATING CONDITIONS
®
2
HOLD UPMODULE
ABSOLUTE MAXIMUM RATINGS
Input Voltage Range
•12 to 40 VDC continuous
Case Operating Temperature (Tc)
•–55 to +125°C full power
Output Power
•HUM-40 40 watts
*HUM-70 70 watts
Input Voltage Range
•12 to 50 continuous
•80 V for up to 50 ms
Lead Soldering Temperature (10 sec per lead)
•300°C
Storage Temperature Range (Case)
•–65°C to +135°C
Sync (HUM-70 only)
•Range 525 min to 625 max kHz
•Duty cycle 40% min to 60% max
•Logic low 0.8V, max
•Logic high 4.5 V, min
•Referenced to input common
•If sync is not used, leave unconnected
Inhibit TTL Open Collector
•Logic low (output disabled)
Logic low voltage 0.8 V max
Inhibit pin current 15 mA
•Referenced to input common
•Logic high (output enabled)
Open circuit voltage 10 V typical
HUM-40 HUM-70
PARAMETER CONDITION MIN MAX MIN MAX UNITS
OUTPUT VOLTAGE CEXT TERMINAL 39 40 39 40 VDC
OUTPUT POWER CONTINUOUS — 40 — 70 W
PEAK, 2 SEC — 60 — 100
INPUT VOLTAGE CONTINUOUS 12 50 12 50 VDC
TRANSIENT 50 ms — 80 — 80 V
INPUT RIPPLE CURRENT 2 MHz Bandwidth — 100 — 100 mA p-p
VIN = 28V, VCS OPEN — 90 — 90 mA
INPUT CURRENT VIN = 28V, INHIBITED — 10 — 10
VIN = 12V, FULL LOAD — 4.6 — 8.6 A
VIN = 40V, FULL LOAD 92 — 92 —
EFFICIENCY VIN = 22V, FULL LOAD 87 — 87 — %
VIN = 12V, FULL LOAD 80 — 80 —
HOLD-UP TIME FULL LOAD 15 — 8.6 — µs/µF
POWER FAIL HIGH, OPEN CIRCUIT 14.0 14.5 14.0 14.5 VDC
FLAG THRESHOLD LOW, SHORT RETURN 11.5 12.0 11.5 12.0
CAPACITOR VOLTAGE OPEN 22 24 22 24 VDC
CONTROLLED SWITCH CLOSED 18 19 18 19
CAP CHARGED HIGH, OPEN CIRCUIT 34 36 34 36 VDC
FLAG THRESHOLD LOW, SHORT RETURN 19.5 20.5 19.5 20.5
Notes
1. Full load for specifications is 40 W for HUM-40 and 70 W for HUM-70.
HUMMER SERIES
40 OR 70 WATTS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
PIN OUT
3
HUMMER SERIES
40 OR 70 WATT
®
Pin HUM-40 (40 Watt) HUM-70 (70 Watt)
1No connection Sync
2VCS (Voltage Control Switch) Cap Charged Flag
3+ CEXT (Ext. Capacitor, Positive) Inhibit
4CEXT Return (Ext. Capacitor, Return) Power Fail Flag
5Input Common No connection
6Positive Input No connection
7Case Ground VCS (Voltage Control Switch)
8Cap Charged Flag + CEXT (Ext. Capacitor, Positive)
9Inhibit CEXT Return (Ext. Capacitor, Return)
10 Power Fail Flag Input Common
11 N/A Positive Input
12 N/A No connection
Dot on top of cover indicates pin one.
BOTTOM VIEW
HUM-40
FLANGED AND NON-FLANGED
See Section B8, cases F2,
and J2, for dimensions.
Dotted line outlines flanged package option.
10 9876
12345
Angled corner indicates pin one.
TOP VIEW
HUM-70
(Pin side, marked side)
See Section B8, case U1, for dimensions.
1
2
3
4
5
6
12
11
10
9
8
7
HUM - 40 F / ES
Base Model
Output Power
Screening
Case Option
(Non-flanged case has no designator in
this position)
(Standard screening has no designator
in this position.)
FIGURE 1: HUM-40 PIN OUT FIGURE 2: HUM-70 PIN OUT
HUM - 70 / ES
Base Model
Output Power
Screening
(Standard screening has no designator
in this position.)
HOLD UPMODULE
MODEL NUMBERING KEY
4
HUMMER SERIES
40 OR 70 WATT
®
DETAILED OPERATIONAL DESCRIPTION
The detailed operation of the HUMMER module is divided into 4
operations: Initialization and Charging, Normal Operation, Low
Line Operation, and Power Fail Operation. For details, refer to the
following text, Figure 4 (HUMMER Module Block Diagram) and
Figure 5 (HUMMER Module Signal Diagram).
1. INITIALIZATION AND CHARGING
As the input voltage ramps up to 8 to 10 volts, the internal
HUMMER module circuits are biased to provide correct output
states on all flags. As the input reaches 14 VDC, the Power Fail
flag (active low) is released, the voltage control switch (VCS) is
closed, and the module begins operating in a boost mode to
charge the external capacitor to 40 volts. At this point, if the recom-
mended connection has been made between the Capacitor
Charged pin and the inhibit pin of the converter as shown in Figure
3, all of the module energy is dedicated to charging the capacitor
and the converter will be inhibited until the capacitor charge
reaches 36 V. If this connection has not been made, the energy
available to charge the capacitor will be the difference between the
current required by the converter’s load and the current capacity of
the HUMMER module.
Note: The HUMMER module is rated at a total operating power
more than its output rating in order to allow it to both deliver a
full load and to continue charging the external capacitor (the
HUM-40, for example, is rated at 40 W output and 60 W total
operating power, allowing it to deliver 40 W to a load and charge
a capacitor at 10 to 20 J/sec). However, if the input voltage
ramps up slowly into a full converter load, the total power drawn
at low voltage could send the module into current limit which
would shut the unit down.
When the input voltage reaches approximately 22 VDC, the VCS
is opened, isolating the stored charge on the external capacitor
and allowing the converter to operate directly from the input power
bus via the external system diode (unless the converter is still
inhibited by the connection between the Capacitor Charged pin
and converter’s inhibit pin) while the capacitor continues to charge.
When the charge on the external capacitor reaches approximately
35 volts (80% of a full charge), the Capacitor Charged flag will be
asserted (removing the inhibit from the converter if applicable) and
the HUMMER module will be in normal operation.
CEXT
RETURN
+CEXT
VCS
PWM
CAPACITOR
CHARGED
INHIBITPOWER
FAIL
CURRENT
SENSE
+
–
+
–
+
–
+VIN
VIN
RETURN
CASE
GROUND
INPUT
CURRENT
LIMIT
FIGURE 4: HUMMER MODULE BLOCK DIAGRAM
EMI
FILTER
(IF USED)
+VIN
VIN
RETURN
CASE
GROUND
POWER
FAIL
INHIBIT
CEXT
RETURN
CAPACITOR
CHARGED
VCS +VIN
INHIBIT
VIN RETURN
+VOUT
VOUT
RETURN
DC-DC
CONVERTER
LOAD
28 VDC
28 VDC
RETURN
HUMMER
HOLD-UP
MODULE
+CEXT
1. EXTERNAL HOLDUP
CAPACITOR
CEXT1
FIGURE 3: HUMMER MODULE SYSTEM BLOCK DIAGRAM
HOLD UPMODULE
HUMMER SERIES
40 OR 70 WATTS
®
5
2. NORMAL OPERATION
Normal operation continues with the capacitor charged and the
input line voltage between 18 and 40 VDC. During this time, the
converter will operate from the line voltage through the external
diode. When the external capacitor reaches its final charge of 40
volts, the HUMMER module enters an idle state, consuming only
enough power to keep the capacitor charged. Idle state power for
the module is approximately 1 watt.
Note: The HUMMER module itself can sustain continuous voltages
of up to 50 VDC and voltage spikes of 80 volts for up to 50
msec, and it will pass these voltages on to the converter through
the external bypass diode. If these ratings exceed the rating of
the converter, care should be taken to control the line voltage to
prevent damage to the converter.
Normal Operation will continue indefinitely until the input voltage
drops below 18 VDC.
3. LOW LINE OPERATION
Low line operation occurs when the input voltage drops to a range
between 18 and 12 volts. When the voltage reaches 18 VDC, the
HUMMER module’s VCS closes and then operates in a boost
mode. In this mode, the HUMMER module supplies 40 VDC
through VCS to the converter, and at the same time maintains the
charge on the capacitor. The module will operate indefinitely in this
low line region until the input line voltage drops below 12 VDC.
4. POWER FAIL OPERATION
When the input line voltage drops to 12 VDC, the Power Fail flag
is asserted (pulled low) and the HUMMER module’s boost mode is
disabled. At this point, the converter load is powered by the stored
energy in the external capacitor. When the voltage on the external
capacitor falls to 20 VDC, the Capacitor Charged flag is released
(pulled low), indicating that 90% of the usable stored energy has
been depleted. If the connection has been made between the
Capacitor Charged pin and the converter’s Inhibit pin, the
converter will also be inhibited.
INITIALIZATION &
CHARGING
{
{
NORMAL
OPERATION
LOW
LINE
OPERATION
NORMAL
OPERATION
POWER FAIL
OPERATION
{
— VIN = 10
— VIN = 14
VCS
WITH
DIODE
30 –
20 –
10 –
0 –
40 –
30 –
20 –
10 –
0 –
40 –
30 –
20 –
10 –
0 –
0 –
VIN
EXT
CAP
CAP
CHARGED
— VIN = 23
— VIN = 12
VIN = 19—VIN = 19—
— VCAP— VCAP
VINVIN
VCS
CLOSED
RAMP
DOWN ON
EXT CAP
VCS
CLOSED
VCAP = 20—
VCAP = 35—
— VCAP = 40
VIN = 10 – FLAGS ACTIVE
VIN = 14 – POWER FAIL FLAG
VIN = 22–VCS OPENS
VCAP = 35 – CAP CHARGED
VIN = 18 – VCS CLOSED
VIN = 23 – VCS OPENS
VIN = 18 – VCS CLOSES
VIN = 12 – POWER FAIL FLAG
VCAP= 20 – CAP CHARGED FLAG
V= 10 – FLAGS NOT ACTIVE
{
{
0 –
POWER
FAIL
OPEN
— VIN = 22
FIGURE 5: HUMMER MODULE SIGNAL DIAGRAM
HOLD UPMODULE
6
HUMMER SERIES
40 OR 70 WATT
®
PIN CONNECTIONS
EXTERNAL CAPACITOR SELECTION
The external capacitor supplies the energy for the DC/DC
converter’s operation during power failure. Interpoint recommends
CLR-79 or CLR-81 wet slug tantalum capacitors because of their
high CV properties and extended temperature operation. An alter-
native choice is a high quality grade aluminum electrolytic. To
ensure maximum system stability, the capacitors should have a
minimum ESR of 0.25 ohms, a minimum capacitance of 330 uF, and
a maximum capacitance of 1 F.
The capacitance needed and derating required will depend on the
system requirements, the load, and the efficiency of the converter
being supplied power. The amount of capacitance for a given hold-
up time is determined by the formula
C= 2P∆twhere:
n (V12 – V22)
Cis required capacitance (in Farads).
Pis power to the load (output of converter) to be held up (in watts)
nis the efficiency of the converter at rated load (in %)
∆tis required hold-up time (in seconds)
V1is charged capacitor voltage (in volts)
V2is low-line voltage of DC/DC converter (in volts)
For a 50 msec hold-up of 30 W output from a converter with a effi-
ciency of 80% and a 16 VDC low line and a 40 V capacitor charge:
C = (2) • (30) • (0.050) ;C = 3= 2790 µF
(0.80) • (402– 162)1075.2
Note: The output power delivered by the HUMMER module to
deliver 30 W to the load with an 80% efficient converter is 37.5
watts. The HUM-40 is rated to deliver a maximum of 40 watts to
the input of the converter. Interpoint data sheets for individual
converters supply an efficiency curve vs. line and load for each
converter model. In calculations, assume the efficiency rating for
the nominal (usually 28 V) line condition.
Note: If the Capacitor Charged pin is connected to the converter’s
inhibit pin as shown in Figure 3, use 20 V as the low line figure in
the formula.
DIODE SELECTION AND CONNECTION
An external diode is required for system operation as shown in
Figure 3, with the diode anode connected to the HUMMER module’s
VCS pin and the DC/DC converter’s +V in pin. This diode supplies
input voltage to the converter when the internal voltage control
switch (VCS) is open. The diode should be selected with a minimum
current rating of 5 A and a voltage breakdown rating of 50 V or
greater (similar to Motorola MDR1060 or equivalent).
CAUTION: Do not connect the HUMMER module’s input return pin
to the Cext return. This connection will short the module’s current
limit sense resistor resulting in excessive currents that can also
damage the DC/DC converter.
INHIBIT FUNCTION
The HUMMER module’s inhibit pin disables the internal boost
converter when the Inhibit pin is pulled low. This is accomplished by
an external connection to the Vin Return pin or Vout Return pin. The
inhibit open circuit voltage is is 10 V and the short circuit current is
15 mA. It is open-collector TTL or CMOS compatible. The pin is
diode-isolated and can be reverse biased to include the input poten-
tial. Power Fail and Capacitor Charged flags are operable when the
unit is inhibited.
FLAG FUNCTIONS
POWER FAIL FLAG
The Power Fail Flag output is implemented by a comparator moni-
toring the input voltage. (The comparator is also used to inhibit
HUMMER module’s operation; note however, that the flag is func-
tional when the unit is inhibited.) The input voltage threshold is
nominally 14.5 V to indicate that sufficient voltage is present for
operation. The comparator output drives an internal MOSFET buffer
which connects to the external Power Fail pin. The buffer is of an
open drain configuration and requires an external pull-up resistor
and voltage for indication. The maximum recommended pull-up
voltage is 36 V. The maximum short circuit should not exceed 10mA.
The buffer is protected by a shunt zener diode connected between
the drain and the Cext Return. In normal operation, the input voltage
exceeds the 14 V threshold and the output is high (open drain).
When the input voltage is below 12 V the output is low, and the
MOSFET conducts to the Return.
CAPACITOR CHARGED FLAG
ACapacitor Charged Flag is implemented by a comparator moni-
toring the HUMMER module’s +Cext terminal. The capacitor voltage
threshold is 36 V, at which point the external capacitor is charged to
80% of its maximum value. When the capacitor discharges, the flag
resets at 20 VDC indicating that approximately 10% of the charge
remains. The comparator output drives a MOSFET buffer amplifier,
and the buffer output connects to the Cap Charged pin. The buffer
is of an open drain configuration and requires a pull-up resistor and
voltage for indication. The maximum recommended pull-up voltage
is 36 V. The maximum short circuit current should not exceed 10
mA. During normal operation, the input is 40 V, exceeding the
threshold, and the output is high (open circuit). When the capacitor
voltage is below 20 V, the output is low, and the MOSFET conducts
to the Return. The HUMMER module must be supplied with a
minimum of 8 VDC for biasing internal circuits to obtain correct
output states.
HOLD UPMODULE
HUM 268621 Rev B
All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. HUMMER is a trademark of Interpoint.
Copyright © 1994 - 2003 Interpoint Corporatation. All rights reserved.
B8-12
CASE F C
ASES
Materials
Header Case F1
Cold Rolled Steel/Nickel/Gold
Cases F2 - F4
Cold Rolled Steel/Nickel/Tin
Cover Case F1
Kovar/Nickel
Cases F2 - F4
Cold Rolled Steel/Nickel/Tin
Pins #52 alloy (all cases)
MHV Series Triple – compression glass seal
MTR Series Triple, case F1 – ceramic seal
MTR Series Triple, case F2 – compression glass seal
HUM40 – compression glass seal or ceramic seal
Case F3 – compression glass seal
Case F4 – compression glass seal or ceramic seal
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
CASE F
BOTTOM VIEW
See Figures 20 - 23 for pin configuration
1.350 max
(34.29)
1.950 max
(49.53)
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
Dot on top of case indicates pin one
109876
0.000
0.170
(4.32)
1.170
(29.72)
0.000
0.170
(4.32)
0.570
(14.48)
0.970
(24.64)
1.370
(34.80)
1.770
(44.96)
12345
0.040 dia.
(1.02)
0.000
0.25 (6.4)
MTR
Series
MHV
Series
0.405 max
(10.29)
0.000
0.405 max
(10.29)
Bathtub Platform
MTR Series Triple and MHV Series Triple: Screening – Standard, ES, or 883
BOTTOM VIEW CASE F1
Seam Seal
0.25 (6.4)
Dot on top of case indicates pin one
FIGURE 20: CASE F1
FIGURE 19: CASE F MAXIMUM DIMENSIONS
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer
to the numerical dimensions for accuracy.
B8-13
CASE F
C
ASES
0.000
0.170
(4.32)
1.170
(29.72)
0.000
0.170
(4.32)
0.570
(14.48)
0.970
(24.64)
1.370
(34.80)
1.770
(44.96)
0.040 dia.
(1.02)
0.000
HUM-40: Screening – Standard or ES
BOTTOM VIEW CASE F2
0.250/0.300
(6.35/7.62)
Solder Seal
0.415 ±0.015
(10.54 ±0.38)
Solder Tip-off
109876
12345
Squared corner and dot on top
of case indicate pin one.
FIGURE 21: CASE F2
0.000
0.170
(4.32)
1.170
(29.72)
0.000
0.170
(4.32)
0.570
(14.48)
0.970
(24.64)
1.370
(34.80)
1.770
(44.96)
0.040 dia.
(1.02)
0.000
MRH Series: Screening – Standard or ES
BOTTOM VIEW CASE F3
0.250/0.300
(6.35/7.62)
Solder Seal
0.455 max
(11.56 )
Solder Tip-off
109876
12345
Squared corner and dot on top
of case indicate pin one.
FIGURE 22: CASE F3
B8-22
CASE J C
ASES
Materials
Header Case J1
Cold Rolled Steel/Nickel/Gold
Cases J2 - J5
Cold Rolled Steel/Nickel/Tin
Cover Case J1
Kovar/Nickel
Case J2 - J5
Cold Rolled Steel/Nickel/Tin
Pins #52 alloy (all cases)
Case J1
MHV Series Triple – compression glass seal
MTR Series Triple – ceramic seal
Cases J2 - J5
compression glass seal
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
CASE J
BOTTOM VIEW
See Figures 36 - 40
for pin configuration
1.350 max
(34.29)
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
Flange Thickness:
Cases J1 and J5 0.060 (1.52)
Case J2 0.073 (1.85) max
Cases J3 and J4 0.067 +0.005/-0.007 (1.70 +0.13/-0.8)
2.720 max
(69.09)
Dot on top of case indicates pin one
FIGURE 35: CASE J MAXIMUM DIMENSIONS
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer
to the numerical dimensions for accuracy.
B8-24 Revised cases, mounting hole dimension corrected to 2.150 (20060626)
CASE J
®
CASES
0.040 dia.
(1.02)
0.000
0.25 (6.4)
0.173
(4.39)
0.000
1.173
(29.79
0.673
(17.09)
Flanged case: Designator required in Case Option position of model number.
HUM-40 Module: Screening – Standard or ES
BOTTOM VIEW CASE J2 (Rev B)
10 9 8 7 6
0.000
0.170
(4.32)
0.210
(5.33)
0.570
(14.48)
0.970
(24.64)
1.370
(34.80)
1.770
(44.96)
2.150
(54.61tt)
12345
HUM-40 Module
Solder Seal
Solder Tip-off
0.415 max
(10.54)
Squared corner and dot on top
of case indicate pin one.
0.162 dia.
(4.11)
FIGURE 37: CASE J2
0.040 dia.
(1.02)
0.000
0.25 (6.4)
10 9 8 7 6
0.000
0.170
(4.32)
0.210
(5.33)
0.570
(14.48)
0.970
(24.64)
1.370
(34.80)
1.770
(44.96)
2.150
(54.61)
12345
0.173
(4.39)
0.000
1.173
(29.79
0.673
(17.09)
0.162 dia
(4.11)
Flanged case: Designator required in Case Option position of model number.
MRH Series: Screening – Standard or ES
BOTTOM VIEW CASE J3 (Rev B)
Solder Seal
Solder Tip-off
0.455 max
(11.56)
Squared corner and dot on top
of case indicate pin one.
FIGURE 38: CASE J3
B8-36
CASE CASE U C
ASES
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins #52 alloy/Gold
compression glass seal
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
CASE U
TOP VIEW
(PIN SIDE)
See Figures 55 and 56 for dimensions
1.505 max (38.23)
3.005 (76.33) max.
Note: Pins are shown for Case U1.
Angled corner indicates pin one
FIGURE 54: CASE U MAXIMUM DIMENSIONS
B8-37
CASE U
C
ASES
Angled corner
indicates pin one.
1
2
3
4
5
6
12
11
10
9
8
7
0.000
0.050 (1.27)
0.000
0.120 (3.05)
0.250 (6.35)
0.450 (11.43)
0.650 (16.51)
0.850 (21.59)
1.050 (26.67)
1.250 (31.75)
1.380 (35.05)
1.505 (38.23) max.
0.000
0.120 (3.05)
0.250 (6.35)
2.750 (69.85)
2.880 (73.15)
3.005 (76.33) max.
0.128 dia
(3.25).
0.040 dia
(1.02)
0.23 (5.8) Lead Length
0.400 (10.16) max.
0.220 (5.59
TOP VIEW CASE U1
MFL Series and MHP Series: Screening – Standard, ES or 883
MFLHP Series, FMD270 EMI Filter, and FMD28-461SL EMI Filters:
Screening – Standard or ES
SMFL, SMFLHP, SMHP, and SSP Series; SFCS, and SFME EMI Filters:
Screening – Standard, Class H or K
HUM70 Module and LCM Module: Screening – Standard or ES
Seam Seal
FIGURE 55: CASE U1
C2-10
TEST (125°C Products) STANDARD /ES /883 (Class H)*
PRE-CAP INSPECTION
Method 2017, 2032 yes yes yes
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. C, -65°C to 150°C no no yes
Method 1010, Cond. B, -55°C to 125°C no yes no
CONSTANT ACCELERATION
Method 2001, 3000 g no no yes
Method 2001, 500 g no yes no
BURN-IN
Method 1015, 160 hours at 125°C no no yes
96 hours at 125°C case (typical) no yes no
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 through 6: -55°C, +25°C, +125°C no no yes
Subgroups 1 and 4: +25°C case yes yes no
HERMETICITY TESTING
Fine Leak, Method 1014, Cond. A no yes yes
Gross Leak, Method 1014, Cond. C no yes yes
Gross Leak, Dip (1 x 10-3) yes no no
FINAL VISUAL INSPECTION
Method 2009 yes yes yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
*883 products are built with element evaluated components and are 100% tested and guaranteed over
the full military temperature range of –55°C to +125°C.
MOR Series
MFLHP Series
MFL Series
MHP Series
MTR Series
MQO Series
MHD Series
MHV Series
MHF+ Series
MHF Series
MGA Series
MSA Series
MGH Series
MCH Series
FM-704A EMI Filter
FMD/FME EMI Filter
FMC EMI Filter
FMH EMI Filter
FMGA EMI Filter
FMSA EMI Filter
HUM Modules
LCM Modules
LIM Modules
QA SCREENING
125°C PRODUCTS
125°C P
RODUCTS
Applies to the following products (some models do not offer “883” screening, please refer to the individual
series datasheets to determine what screening is available):
