3W to 50W Planar
Shock / Vibration Proof
High Power Resistors
BPR Series
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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, Dimensions and Materials
Model
Dim A
Dim B
Dim C
Dim D
BPR 3
0.50
12.70
0.60
15.24
0.67
17.02
0.30
7.62
BPR 5
0.50
12.70
1.00
25.40
1.07
27.18
0.30
7.62
BPR 7
1.00
25.40
0.75
19.05
0.82
20.82
0.80
20.32
BPR 10
1.00
25.40
1.00
25.40
1.07
27.18
0.80
20.32
BPR 20
2.00
50.80
1.00
25.40
1.07
27.18
1.80
45.72
BPR 30
2.10
53.34
1.40
35.56
1.47
37.34
1.90
48.26
BPR 40
2.10
53.34
1.90
48.26
1.97
50.04
1.90
48.26
BPR 50
2.10
53.34
2.20
55.88
2.27
57.66
1.90
48.26
Dim. B
±.005
±0.13
Dim. A
±.005
±0.13
.040±.005
1.02±0.13
BPR
Dim. C
±.020
±0.51
Lead: Tin Plated Copper Alloy
Substrate: 96% Alumina
Resistor: Thick Film
Notes:
1. Contact factory for custom products, non-standard values and tolerances.
Items
Power Rating
Operating Voltage Max
Resistance Range
TCR
Tolerance
OperatiingTemp. Range
Dielectric Withstand Voltage
Mechanical Shock
Load Life
Humidity
Temperature Cycle
Solder Heat (Max)
Solderability
Insulation Resistance
Vibration
Specification
.020±.005
0.51±0.13
Dim. D
±.015
±0.38
.200±.020
5.08±0.51
.040±.005
1.02±0.13
.200±.002
5.08±0.05
Conditions
@ ambient temp < 70°C
Extended resistance range available.
For -55 to +155°C and above 1Ω
3W, 5W, 7W, 10W, 20W, 30W, 40W & 50W,
300Vac, 500VDC
0.1Ω to 200 KΩ
100 ppm/°C
+/-5%, optional 1%, 2%
-55 - +155 °C
5KV minimum
ΔR
+/- 0.25 %
ΔR
+/- 2.0 %
ΔR
+/- 0.5 %
ΔR
+/- 0.5%
ΔR
+/- 0.25 %
Min 95% coverage
Over 1000 MΩ
ΔR
+/- 0.25 %
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,
230+/-5°C, 5 seconds.
Between terminals and metal back plate.
20G, 10Hz to 2 KHz.
Specifications subject to change without notice
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
03. 12
3W to 50W Planar Shock / Vibration Proof
High Power Resistors
BPR Series
Derating Curve
% Power Rating
100
80
60ㅤㅤㅤㅤㅤ
40
20
0
70°C
+155°C
Resistor Temperature (°C)
Ordering Information
BPR 10 500 F
Model
Power Rating
3 : 3W,
5 : 5W
7 : 7W
10 : 10W
20 : 20W
30 : 30W
40 : 40W
50 : 50W
Resistance Code Tolerance
50
Ω
: 500 First two digits significant, last digit: number of trailing zeros
Tolerance
J = 5% Tol
G = 2% Tol
F = 1% Tol
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© TT electronics plc
03. 12
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