TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
1500 WATT UNIDIRECTIONAL
TRANSIENT VOLTAGE SUPPESSOR
Qualified per MIL-PRF-19500/500
T4-LDS-0 09 4 Rev . 2 (1 0 15 7 2) Page 1 of 5
DEVICES LEVELS
1N5555 1N5556 JAN
1N5557 1N5558 JANTX
JANTXV
DESCRIPTION
DO-13 (DO-202AA)
This Transient Voltage Suppressor (TVS) series for 1N5555 thru 1N5558 are JEDEC
registered selections for unidirectional devices. All have the same high Peak Pulse
Power rating of 1500 W with extremely fast response times. They are also available in
military qualified selections as described in the Features section herein. They are most
often used for protecting against transients from inductive switching environments,
induced RF effects, or induced secondary lightning effects as found in lower surge levels
of IEC61000-4-5. They are also very successful in protecting airborne avionics and
electrical systems. Since their response time is virtually instantaneous, they can also
protect from ESD and EFT per IEC61000-4-2 and IEC61000-4-4.
IMPORTANT: For the most current data, consult MICROSEMI’s website:
http://www.microsemi.com
FEATURES
¾ Unidirectional TVS series for thru-hole mounting
¾ Working voltage (VWM) range 30.5 V to 175 V
¾ Hermetic sealed DO-13 metal package
¾ JAN/TX/TXV military qualifications also available per MIL-PRF-19500/500 by
adding the JAN, JANTX, or JANTXV prefix, e.g. JANTXV1N5555, etc.
¾ For bidirectional TVS in the same DO-13 package, see separate data sheet for the
1N6036 – 1N6072A series (also military qualified)
¾ Surface mount equivalent packages also available from the SMCJ5.0 -
SMCJ170CA or SMCG5.0 – SMCG170C series in separate data sheet (consult
factory for other surface mount options)
¾ Plastic axial-leaded equivalents available from the 1N6267 – 1N6303A series in
separate data sheet
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0 09 4 Rev . 2 (1 0 15 7 2) Page 2 of 5
APPLICATIONS / BENEFITS
¾ Suppresses transients up to 1500 watts @ 10/1000 µs (see Figure 1)
¾ Clamps transient in less than 100 pico seconds
¾ Protection from switching transients and induced RF
¾ Protection from ESD and EFT per IEC 61000-4-2 and IEC 61000-4-4
¾ Secondary lightning protection per IEC61000-4-5 with 42 Ohms source impedance:
Class 1: 1N5555 to 1N5558
Class 2 & 3: 1N5555 to 1N5557
Class 4: 1N5555 to 1N5556
¾ Secondary lightning protection per IEC61000-4-5 with 12 Ohms source impedance:
Class 1: 1N5555 to 1N5557
Class 2: 1N5555 to 1N5557
¾ Inherently radiation hard as described in Microsemi MicroNote 050
MAXIMUM RATINGS
¾ 1500 Watts for 10/1000 μs with repetition rate of 0.01% or less* at lead temperature (TL) 25oC (see Figs 1, 2, & 4)
¾ Operating & Storage Temperatures: -65o to +175oC
¾ THERMAL RESISTANCE: 50oC/W junction to lead at 0.375 inches (10 mm) from body or 110oC/W junction to
ambient when mounted on FR4 PC board with 4 mm2 copper pads (1oz) and track width 1 mm, length 25 mm
¾ DC Power Dissipation*: 1 Watt at TL = +25oC 3/8” (10 mm) from body (see derating in Fig 3)
¾ Forward surge current: 200 Amps for 8.3ms half-sine wave at TA = +25oC
¾ Solder Temperatures: 260 o C for 10 s (maximum)
MECHANICAL AND PACKAGING
¾ CASE: DO-13 (DO-202AA), welded, hermetically sealed metal and glass
¾ FINISH: All external metal surfaces are Tin-Lead plated and solderable per MIL-STD-750 method 2026
¾ POLARITY: Cathode connected to case and polarity indicated by diode symbol
¾ MARKING: Part number and polarity diode symbol
¾ WEIGHT: 1.4 grams. (Approx)
¾ TAPE & REEL option: Standard per EIA-296 (add “TR” suffix to part number)
¾ See package dimension on last page
* TVS devices are not typically used for dc power dissipation and are instead operated at or less than their rated
standoff voltage
(VWM) except for transients that briefly drive the device into avalanche breakdown (VBR to VC region).
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0 09 4 Rev . 2 (1 0 15 7 2) Page 3 of 5
ELECTRICAL CHARACTERISTICS
JEDEC
Type
Number
(Notes 1&2)
Minimum
Breakdown
Voltage
V(BR) @ I(BR)
Test
Current
I(BR)
Rated
Standoff
Voltage
VWM
Maximum
(RMS)
Reverse
Voltage
VWM
(
RMS
)
Maximum
Standby
Current
ID @ VWM
Maximum
Peak
Reverse
Voltage
VC @ IPP
Maximum
Peak Pulse
Current
IPP
Maximum
Temperature
Coefficient of
V(BR) αV(BR)
@ 1.0 mA
V mA V V μA V A %/oC
1N5555
1N5556
1N5557
1N5558
33.0
43.7
54.0
191.0
1.0
1.0
1.0
1.0
30.5
40.3
49.0
175.0
21.5
28.5
34.5
124.0
5
5
5
5
47.5
63.5
78.5
265.0
32
24
19
5.7
+.093
+.094
+.096
+.100
NOTE 1: A TVS is normally selected according to the rated “Standoff Voltage” VWM that should be equal to or
greater than the dc or continuous peak operating voltage level.
NOTE 2: Also available in military qualified types with a JAN, JANTX, or JANTXV prefix.
SYMBOLS & DEFINITIONS
Symbol Definition
VWM Standoff Voltage: Applied Reverse Voltage to assure a nonconductive condition. (See Note 1
above.)
V(BR) Breakdown Voltage: This is the Breakdown Voltage the device will exhibit at 25oC
VC
Maximum Clamping Voltage: The maximum peak voltage appearing across the TVS when
subjected to the peak pulse current in a one millisecond time interval. The peak pulse voltage is the
combination of voltage rise due to both the series resistance and thermal rise and positive
temperature coefficient (αV(BR))
IPP Peak Pulse Current: The peak current during the impulse (See Figure 2)
PPP Peak Pulse Power: The pulse power as determined by the product of VC and IPP
ID Standby Current: The current at the standoff voltage (VWM)
I(BR) Breakdown Current: The current used for measuring Breakdown Voltage (V(BR))
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0 09 4 Rev . 2 (1 0 15 7 2) Page 4 of 5
GRAPHS
Pulse Time (tp ) Time (t) in milliseconds
FIG. 1 – Non-repetitive peak pulse power rating curve FIG. 2 Pulse wave form for exponential surge
NOTE: Peak power defined as peak voltage times peak current
FIG. 3 Steady-state power derating curve
TA Ambient Temperature oC
FIG. 4 Derating Curve
Peak Pulse Power (P
PP
)inkW
Pulse current (IP) in percent of IPP
Peak Value
IPP
Pulse time duration (tp) is
defined as that point
where IP decays to 50% of
pea
k
va
l
ue
(
I
PP
).
Exponential wave-form
(See FIG. 2)
Square-wave pulse
100
10
1.0
0.1Kw
100ns 1
μ
s 10
μ
s 100
μ
s 1ms 10ms
Exponential wave-form
(See FIG. 2)
Square-wave pulse
Steady-state power dissipation (watts)
TL – lead Temperature
Peak Pulse Power (PPP) or current I (surge)
in percent of 25oC rating
Steady-state power dissipation (watts)
TL – lead Temperature
Peak Pulse Power (P
PP
)inkW
100
10
1.0
0.1Kw
100ns 1
μ
s 10
μ
s 100
μ
s 1ms 10ms
Exponential wave-form
(See FIG. 2)
Square-wave pulse
Peak Pulse Power (PPP) or current I (surge)
in percent of 25oC rating
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841 Gort Road Business Park, Ennis, Co. Clare, Ireland
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803 Tel: +353 (0) 65 6840044 Fax: +353 (0) 65 6822298
Website: http://www.microsemi.com
T4-LDS-0 09 4 Rev . 2 (1 0 15 7 2) Page 5 of 5
PACKAGE DIMENSIONS
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. The major diameter is essentially constant along its length.
4. Within this zone, diameter may vary to allow for lead finishes
and irregularities.
5. Dimension to allow for pinch or seal deformation anywhere
along tubulation.
6. Lead 1 (cathode) shall be electrically connected to the case.
7. In accordance with ASME Y14.5M, diameters are equivalent
to φx symbology.
FIGURE 1. Physical dimensions (DO-13).
Dimensions
Symbol Inches Millimeters Notes
Min Max Min Max
BD .215 .235 5.46 5.97
BL .293 .357 7.44 9.07 3
BLT .570 14.48
CD .045 .100 1.14 2.54 5
LD .025 .035 0.64 0.89
LL 1.000 1.625 25.40 41.28 4
LU .188 4.78 4