Resistors
3W to 50W Planar Shock / Vibration
Proof High Power Resistors
BPR Series
Non-Inductive planar package
High power density.
Thin package for high density PCB installation.
Power dissipated above the board.
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
All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)
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 30
2.10
53.34
1.40
35.56
1.47
37.34
1.90
48.26
BPR 50
2.10
53.34
2.00
50.80
2.07
52.58
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
3W, 5W, 7W, 10W, 30W & 50W
300Vac, 500VDC
BPR3-30: 0.1Ω to 200 kΩ BPR50: 1Ω to 1 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 %
.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 (3 - 7W), 50°C (10 - 30W) & 25°C (50W)
Extended resistance range available.
For -55 to +155°C and above 1Ω
100G.
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.
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.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
11.17
3W to 50W Planar Shock / Vibration
Proof High Power Resistors
BPR Series
Derating Curve
Derating Curve
Derating Curve
Derating Curve
Ordering Procedure
Ordering Procedure
Ordering Information
B
P
R
1
1
Type
BPR3
BPR5
BPR7
BPR10
BPR30
BPR50
2
1
0
5
0
0
2
1
B
P
R
1
F
3
2
1
0
5
0
Example: BPR10500F
(BPR10, 50 ohms ±1%, Pb-free)
Example: BPR10500F
(BPR10, 50 ohms ±1%, Pb-free)
0
2
3
Tolerance
F = ±1%
G = ±2%
J = ±5%
F
3
Type 3
Value
Value
Tolerance
BPR3
2 digits + multiplier
F = ±1% for values <10 ohms
2 digits + multiplier BPR5 xRx
xRx for values <10 ohmsBPR7 = ±2% for values <1 ohm
G
0Rxxx
0Rxxx for values <1 ohm
J=
BPR10 ±5%
BPR30
BPR50
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
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.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
www.ttelectronics.com/resistors
© TT Electronics plc
11.17
03.17
PCB Design
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