3W to 50W PLANAR SHOCK / VIBRATION PROOF
HIGH POWER RESISTORS
Features…………………………………………………………
.
Non-Inductive planar package
High power density.
Thin package for high density PCB installation.
Power dissipated above the board.
RoHS compliant.
Superior vibration durability
Applications………………………………………………
………
Ideal for extreme mechanically stressed environments.
Power supply pre-load resistors.
UPS systems
Snubber and pulse handling circuits.
Pulse generator load resistors.
In-rush current protection
Bleeder Resistors
Specification
Model BPR 3
BPR 5
0.50
12.70
1.00
25.40
1.07
27.18
0.30
BPR 7
1.00
25.40
0.75
19.05
0.82
20.82
0.80
BPR 10 BPR 20 BPR 30 BPR 40 BPR 50
0.50
12.70
1.00
25.40
1.00
2.00
50.80
1.00
2.10
53.34
1.40
2.10
53.34
1.90
2.10
53.34
2.20
Dimensions (inch / mm)
Dim A
0.60
15.24
Dim B
25.40
1.07
25.40
1.07
35.56
1.47
48.26
1.97
55.88
2.27
.040±.005
1.02±0.13
0.67
17.02
Dim C
±.005
±0.13
27.18
0.80
27.18
1.80
37.34
1.90
50.04
1.90
57.66
1.90
Dim. A
0.30
7.62
Dim D
7.62
20.32
20.32
45.72
48.26
48.26
48.26
±.005
Dim. B
±.020
±0.51
BPR
Dim. C
±0.13
Materials
Lead: Tin Plated Phosphor Bronze
Substrate: 96% Alumina
Resistor: Ruthenium Oxide
.200±.020
5.08±0.51
.020±.005
0.51±0.13
.040±.005
1.02±0.13
±.015
±0.38
.200±.002
5.08±0.05
Dim. D
Notes:
1. Contact factory for custom products, non-standard values and tolerances.
Items
Power Rating
Specification
Conditions
@ ambient temp < 70°C
3W, 5W, 7W, 10W, 20W, 30W, 40W & 50W,
300Vac, 500VDC
Operating Voltage Max
Resistance Range
TCR
Extended resistance range available.
0.1Ω to 200 KΩ
For -55 to +155°C and above 1Ω
100 ppm/°C
Tolerance
+/-5%, optional 1%, 2%
Operation Temp. Range
Dielectric Withstanding Voltage
Mechanical Shock
Load Life
-55 - +155 °C
5KV minimum
∆R +/- 0.25 %
∆R +/- 2.0 %
100G.
70°C, 90 min. ON, 30 min.OFF, 1000 hours.
85°C, 85% RH, DC 0.1W, 1000 hours.
-55°C, 30 min.,+155°C 30min., 5cycles.
250+/-5°C, 10 seconds,
Humidity
∆R +/- 0.5 %
Temperature Cycle
Soldering Heat (Max)
Solderability
∆R +/- 0.5%
∆R +/- 0.25 %
Min 95% coverage
Over 1000 MΩ
∆R +/- 0.25 %
230+/-5°C, 5 seconds.
Insulation Resistance
Vibration
Between terminals and metal back plate.
20G, 10Hz to 2 KHz.
Specifications subject to change without notice
1