BR Series
Bare Element Current Sense Resistors
Features:
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Stackpole Electronics, Inc.
Resistive Product Solutions
1, 3 and 5 watts
±1%, ±2% or ±5% tolerance
Resistance wire TCR ±20ppm/ºC
Low inductance versions available for high frequency applications
All welded construction
Flameproof
Non-inductive (10 nH max)
Solderable copper leads (60/40)
High current handling to 70 amps
RoHS compliant / lead-free
Current sensing
Feedback
Low inductance
Surge and pulse
Applications:
Electrical Specifications
Type / Code
BR 1
BR 3
BR 5
Power Rating
(Watts) at 85ºC
1W
3W
5W
Resistance Temperature
Coefficient (1)
±100ppm/ºC - ±20ppm/ºC
±100ppm/ºC - ±20ppm/ºC
±100ppm/ºC - ±20ppm/ºC
Ohmic Range (Ω) and Tolerance
1%
0.003 - 0.1
0.0025 - 0.1
0.003 - 0.05
2%, 5%
0.003 - 0.1
0.0025 - 0.1
0.003 - 0.05
(1) Contact factory for resistance values below 0.005Ω
Performance Characteristics
Test
Moisture Resistance
Load Life @ 25ºC - 1,000 hrs.
Short Time Overload
Temperature Cycle @ -40ºC & +125ºC (1,000 cyc)
Test Results
± 1%
± 1%
± 0.5%
± 1%
How to Order
SEI Type
Code
Nominal
Resistance
Tolerance
Packaging
BR
Type
BR
Description
Current Sense
Code
1
3
5
1
Wattage
1W
3W
5W
0.1
5%
Tolerance
1%
2%
5%
Code
B
B
Description
Bulk
Pkg Qty
1,000
Rev Date: 09/30/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
51
www.seielect.com
marketing@seielect.com
BR Series
Bare Element Current Sense Resistors
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
Type / Code
BR 1
BR 3
BR 5
A
0.45 + 0.04/-0.02
11.43 + 1.02/-0.508
0.6 + 0.04/-0.02
15.3 + 1.02/-0.508
0.8 + 0.04/-0.02
20.32 + 1.02/-0.508
B
0.2 ± 0.1
5.08 ± 2.54
0.6 Typ - 1 Max
15.3 Typ - 25.4 Max
0.6 Typ - 1 Max
15.3 Typ - 25.4 Max
C
0.125 ± 0.03
3.18 ± 0.762
0.125 ± 0.03
3.18 ± 0.762
0.125 ± 0.03
3.18 ± 0.762
D
0.065 ± 0.01/-0.005
1.65 ± 0.254/-0.127
0.065 ± 0.01/-0.005
1.65 ± 0.254/-0.127
0.065 ± 0.01/-0.005
1.65 ± 0.254/-0.127
E
0.04 ± 0.002
1.02 ± 0.051
0.04 ± 0.002
1.02 ± 0.051
0.04 ± 0.002
1.02 ± 0.051
Units
inches
mm
inches
mm
inches
mm
Rev Date: 09/30/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
52
www.seielect.com
marketing@seielect.com