Key Features
■Ultra Precision -
Down To 0.05%
■Matched Sets Available
To 2ppm/°C
■High Pulse Withstand
■Low Reactance
■Low TCR - Down
To 5ppm/°C
■Long Term Stability
■Up To 1 Watt At 70°C
■Released To CECC 40101
004, 030 And 804
Type HOLCO Series
The Holco range of Precision Metal
Film Resistors meets the requirement
for economically priced components for
industrial and military applications. The
manufacturing facility utilises closely
controlled production processes includ-
ing the sputter coating of metal alloy
films to ceramic substrates, and laser
spiralling to achieve close tolerance
and high stability resistors. An epoxy
coating is applied for environmental
and mechanical protection. Comm-
ercially the Series is available in two
case sizes, from 1 ohm to 4M ohms,
tolerances from 0.05% to 1% and
TCR's from 5ppm/°C to 100ppm/°C.
Offered with release to BS CECC
40101 004, 030 and 804 the H8 is
available via distribution.
General Data
Lead Material: Solderability to BS CECC 40101 004 Para 4.15.1
Encapsulation: Conformal Epoxy Coating
Resistor Marking: Legend printed in accordance with CECC 40000 Para 2.4
Solvent Resistance: The epoxy coating and print will withstand the action of all commonly
used industrial cleansing solvents
Temperature Coefficient / Tolerance Ranges
TCR H4P H4 H8
ppm/°C
0.05% 0.1%-0.25% 0.5%-1.0% 0.05% 0.1%-0.25% 0.5%-1.0% 0.05% 0.1%-0.25% 0.5%-1.0%
5 10R-500K 10R-500K 10R-500K 10R-500K 10R-500K 10R-500K 10R-500K 10R-500K 10R-500K
10 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0
15 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0 10R-1M0
25 10R-1M0 10R-2M0 10R-2M0 10R-1M0 10R-2M0 10R-2M0 10R-1M0 10R-2M0 10R-2M0
50 10R-1M0 10R-2M0 10R-4M0 10R-1M0 10R-2M0 10R-4M0 10R-1M0 10R-2M0 10R-4M0
100 10R-1M0 1R0-2M0 1R0-4M0 10R-1M0 1R0-2M0 1R0-4M0 10R-1M0 1R0-2M0 1R0-4M0
Characteristics -
Electrical
H4P H4 H8
BS CECC 40101 004
Style:
KHJ
Power Rating at 70°C:
0.25W 0.063W 0.125W
Temperature Rise (max):
32°C 14°C 28°C
Limiting Element Voltage:
250V 200V 200V
BS CECC 40101 030
Style:
JH
Power Rating at 125°C:
0.125W 0.1W
Temperature Rise (max):
30°C 30°C
Limiting Element Voltage:
250V 200V
BS CECC 40101 804
Style:
BA
Power Rating at 125°C:
0.25W 0.125W
Limiting Element Voltage:
250V 200V
Commercial Ratings
Power Rating at 70°C:
1.0W 0.5W 0.25W
Temperature Rise:
70°C 55°C 40°C
Limiting Element Voltage:
500V 350V 350V
Approved Value Ranges
40101-004, 40101-030
Type Style Style Z C D Y
004 030 100ppm 50ppm 25ppm 15ppm
H4 K J 10R-1M0 49R9-1M0 49R9-1M0 49R9-1M0
H8 HJ H 10R-1M0 49R9-1M0 49R9-1M0 49R9-1M0
Tolerances 0.1%, 0.25%, 0.5%, 1%
40101-804
Type Style CDT
50ppm 25ppm 15ppm
H4 B 49R9-1M0 49R9-1M0 49R9-1M0
H8 A 49R9-1M0 49R9-1M0 49R9-1M0
Tolerances 0.1%, 0.25%, 0.5%, 1%
Axial Leaded Precision Resistors
Type HOLCO Series
Literature No. 1773230
Issued: 07-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
Characteristics -
Electrical
Typical Data Reference
Voltage Coefficient of Less Than n/a
Resistance (Between 10% 5ppm/Volt Applied
and Full Rated Voltage)
Insulation Resistance at Greater Than 1012 Ohms n/a
500 Volts
Resistance to Soldering Less Than 0.05% BS CECC 40101 004
Heat (260°C for 10 Secs.) Para 4.15.2
Short Term Overload Less Than 0.06% BS CECC 40101 004
(6.25 Times Rated BS CECC Para 4.11
Wattage for 5 Seconds)
Ambient Temperature -55°C to +155°C BS CECC 40101 004,
Range BS CECC 40101 030 & Commercial
Rapid Change of Less Than 0.04% BS CECC 40101 004
Temperature Para 4.16
(-55°C to +155°C, 5 cycles)
Shelf Life Less Than 0.05% Per Annum n/a
(at Normal Room Temp.)
Vibration Less Than 0.04% BS CECC 40101 004
(10-500 HZ,Amplitude Para 4.19
0.75mm, or Acceleration
98m/s2 which is less severe,
sweep duration 6 hours)
Vibration Less Than 0.04% MIL STD 202
(55-2000 Hz Simple METHOD 204-C
Harmonic Motion,
Max.Acceleration 98m/s2,
Duration 35±5 Minutes)
Bump (390m/s2, Less Than 0.03% BS 2011 Part 2.1 Eb 1977 (1984)
4000 Bumps)
Load Stability See Graphs n/a
Damp Heat Steady State See Graph BS CECC 40101 004
Para 4.21
Dimensions
H4P H4 H8
Body Length (L) maximum: 10.0 mm 10.0 mm 7.20 mm
Body Diameter (D) maximum: 3.70 mm 3.70 mm 2.50 mm
Lead Diameter (d) maximum: 0.60 mm 0.60 mm 0.60 mm
Lead Length (l) nominal: 30.0 mm 30.0 mm 30.0 mm
Recommended Mounting Pitch: 12.7 mm 12.7 mm 10.2 mm
Weight (g/100 resistors) 40 40 24
Axial Leaded Precision Resistors
Type HOLCO Series
Literature No. 1773230
Issued: 07-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
To prevent damage to the components conformal coating, the leads should be adequately supported during the
forming process
Characteristics -
Long Term Stability
Long Term Stability
Commercial
Ratings at 125°C
H4P - 1W
H4 - 0.5 W
H8 - 0.25 W
Damp Heat Steady State
93% RH at 40°C
H8 100R B Y B
Common Part
1.0 ohm
(1000 milli ohms) 1R0
10 ohm
(10 ohms) 10R
100 ohm
(100 ohms) 100R
1K 0hm
(1000 ohms) 1K0
10K ohm
(10000 ohms) 10K
100K ohm
(100000 ohms) 100K
1M ohm
(1000000 ohms) 1M0
Resistance Value
Tolerance
H4P
H4
H8
A - 0.05%
B - 0.1%
C - 0.25%
D - 0.5%
F - 1.0%
T.C.R. Code
A - Part can only be sold with
Commercial
or C of C release.
B - Part can be sold to BS
CECC 40101 004,
BS CECC 40101 030
D - Part can be sold to BS
CECC 40101 804
Release
A - 5ppm
B - 10ppm
Y - 15ppm
D - 25ppm
C - 50ppm
Z - 100ppm
How to Order
Long Term Stability
BS CECC 40101 004
Ratings at 70°C
H4 - 0.25 W
H8 - 0.125 W
Long Term Stability
BS CECC 40101 030
Ratings at 125°C
H4 - 0.125 W
H8 - 0.1 W
Derating Graph -
Approved and Commercial Ratings
Axial Leaded Precision Resistors
Type HOLCO Series
Literature No. 1773230
Issued: 07-09
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
tycoelectronics.com
passives.tycoelectronics.com
