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ERH Datasheet(PDF) 2 Page - Vishay Siliconix

No. de Pieza. ERH
Descripción  Wirewound Resistors, Military/Established Reliability MIL-PRF-39009 Qualified, Type RER, R Level
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Fabricante  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
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ERH Datasheet(HTML) 2 Page - Vishay Siliconix

   
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Document Number: 30200
For technical questions, contact: ww2bresistors@vishay.com
www.vishay.com
Revision: 29-May-08
161
ERH, ENH
Wirewound Resistors, Military/Established Reliability
MIL-PRF-39009 Qualified, Type RER, R Level
Vishay Dale
DIMENSIONS
MATERIAL SPECIFICATIONS
Element: Copper-nickel alloy or nickel-chrome alloy,
depending on resistance value
Core: Ceramic, steatite or alumina, depending on physical
size
Encapsulant: Silicone molded construction
Housing: Aluminum with hard anodic coating
End Caps: Stainless steel
Standard Terminals: Tinned Copperweld®
Part Marking: Source code, JAN, military PIN, date/lot code
POWER RATING
Vishay ERH and ENH resistor wattage ratings are based on
mounting to the proper heat sink.
ERH-5 and ERH-10: 4" x 6" x 2" x 0.040" thick aluminum
chassis
ERH-25 and ERH-50: 5" x 7" x 2" x 0.040" thick aluminum
chassis
APPLICABLE MIL SPECIFICATION
MIL-PRF-39009: This is the military specification covering
housed
chassis
mount
established
reliability
power
wirewound resistors. Vishay ERH and ENH resistors are
listed as qualified on the MIL-PRF-39009 QPL.
MODEL
DIMENSIONS in inches [millimeters]
AB
C
D
E
F
G
H
J
K
L
M
N
P
ERH-5
ENH-5
0.444
± 0.005
[11.280
± 0.127]
0.490
± 0.005
[12.450
± 0.127]
0.600
± 0.031
[15.240
± 0.787]
1.125
± 0.062
[28.580
± 1.570]
0.334
± 0.015
[8.480
± 0.381]
0.646
± 0.015
[16.410
± 0.381]
0.320
± 0.015
[8.130
± 0.381]
0.065
± 0.010
[1.650
± 0.254]
0.133
± 0.010
[3.380
± 0.254]
0.078
± 0.010
[1.980
± 0.254]
0.093
± 0.005
[2.360
± 0.127]
0.078
± 0.015
[1.980
± 0.381]
0.050
± 0.005
[1.270
± 0.127]
0.266
± 0.062
[6.760
± 1.570]
ERH-10
ENH-10
0.562
± 0.005
[14.270
± 0.127]
0.625
± 0.005
[15.880
± 0.127]
0.750
± 0.031
[19.050
± 0.787]
1.375
± 0.062
[34.930
± 1.570]
0.420
± 0.015
[10.670
± 0.381]
0.800
± 0.015
[20.320
± 0.381]
0.390
± 0.015
[9.910
± 0.381]
0.075
± 0.010
[1.900
± 0.254]
0.165
± 0.010
[4.190
± 0.254]
0.093
± 0.010
[2.360
± 0.254]
0.094
± 0.005
[2.390
± 0.127]
0.102
± 0.015
[2.590
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.312
± 0.062
[7.920
± 1.570]
ERH-25
ENH-25
0.719
± 0.005
[18.260
± 0.127]
0.781
± 0.005
[19.840
± 0.127]
1.062
± 0.031
[26.970
± 0.787]
1.938
± 0.062
[49.230
± 1.570]
0.550
± 0.015
[13.970
± 0.381]
1.080
± 0.015
[27.430
± 0.381]
0.546
± 0.015
[13.870
± 0.381]
0.075
± 0.010
[1.900
± 0.254]
0.231
± 0.010
[5.870
± 0.254]
0.172
± 0.010
[4.370
± 0.254]
0.125
± 0.005
[3.180
± 0.127]
0.115
± 0.015
[2.920
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.438
± 0.062
[11.130
± 1.570]
ERH-50
ENH-50
1.562
± 0.005
[39.670
± 0.127]
0.844
± 0.005
[21.440
± 0.127]
1.968
± 0.031
[49.990
± 0.787]
2.781
± 0.062
[70.640
± 1.570]
0.630
± 0.015
[16.000
± 0.381]
1.140
± 0.015
[28.960
± 0.381]
0.610
± 0.015
[15.490
± 0.381]
0.088
± 0.010
[2.240
± 0.254]
0.260
± 0.010
[6.600
± 0.254]
0.196
± 0.010
[4.980
± 0.254]
0.125
± 0.005
[3.180
± 0.127]
0.107
± 0.015
[2.720
± 0.381]
0.085
± 0.005
[2.160
± 0.127]
0.438
± 0.062
[11.130
± 1.570]
L
K
P
M
D
C
A
B
N
J
E
F
H
G
- 55
0
50
100
150
200
250
AMBIENT TEMPERATURE IN °C
120
100
80
60
40
20
0
25
Derating
- 50
PERFORMANCE
TEST
CONDITIONS OF TEST
TEST LIMITS
Low Temperature Operation
Apply rated power until thermal stability, remove power subject to air
temperature of - 55 °C for 15 to 30 min
± (0.5 % + 0.01
Ω) ΔR
Short Time Overload
5 x rated power for 5 s
± (0.3 % + 0.01
Ω) ΔR
Dielectric Withstanding Voltage
1000 Vrms (RER 40, 45, 50, 60, 65, 70), 2000 Vrms (RER55 and 75),
1 min duration
± (0.2 % + 0.01
Ω) ΔR
Low Temperature Storage
- 55 °C for 24 h
± (0.3 % + 0.01
Ω) ΔR
High Temperature Exposure
250 °C for 2000 h
± (1.0 % + 0.01
Ω) ΔR
Moisture Resistance
MIL-STD-202, Method 106
± (0.5 % + 0.01
Ω) ΔR
Shock, Specified Pulse
MIL-STD-202, Method 213, condition 1
± (0.2 % + 0.01
Ω) ΔR
Vibration, High Frequency
MIL-STD-202, Method 204, condition D
± (0.2 % + 0.01
Ω) ΔR
Load Life
2000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
± (1.0 % + 0.01
Ω) ΔR
Extended Life
10 000 h at rated power, + 25 °C, 1.5 h “ON”, 0.5 h “OFF”
± (2.0 % + 0.01
Ω) ΔR
Terminal Strength
MIL-STD-202, Method 211, condition A
5 pound (RER40, 45, 60, 65), 10 pound (RER50, 55, 70, 75)
± (0.2 % + 0.01
Ω) ΔR


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