Ohmite EBW Series Data Sheet
EBW Series
% Rated Power
Resistor Surface Temp., oC
180
170°
(EBWB) 65°
85° (EBWA)
0 6030 90 120 150
40
0
60
80
20
100
Manganin/Aluchrom Alloy Current Sense
The EBW Series are manufactured using electron
beam welding technology. This allows the joining of
different alloys with great accuracy and tolerance.
The EBW Series have heavy copper connectors,
excellent long term stability and low inductance.
These components can tolerate soldering temperatures of 350C for 30 seconds or 250C for 10min.
These can be mounted using re-flow soldering or
welding on copper. The EBWA can handle a power
of 5W up to 100A at 0.5mΩ. The EBWB can handle
a constant power of 7W at 0.2mΩ and a continuous
load of 180A at 0.2mΩ.
SERIES SPECIFICATIONS
Model Power (W) Resistance (mΩ) Material TCR (20°C - 60°C) Weight (g)
EBWA-M 5 0.5 Manganin ±70ppm/°C 0.4081
4 1 Manganin ±50ppm/°C 0.1994
EBWA-N 4 2 Aluchrom Alloy ±50ppm/°C 0.2726
3 3 Aluchrom Alloy ±50ppm/°C 0.1832
2.5 4 Aluchrom Alloy ±50ppm/°C 0.1363
EBWB-M 7 0.2 Manganin ±100ppm/°C 1.5138
6 0.5 Manganin ±75ppm/°C 0.5652
EBWB-N 6 1 Aluchrom Alloy ±50ppm/°C 0.8573
4 2 Aluchrom Alloy ±50ppm/°C 0.4287
3.5 3 Aluchrom Alloy ±50ppm/°C 0.2858
CERTIFICATIONS
BN ES ISO 9001: 2008
ISO/TS 16949: 2009
APPLICATIONS
• Currentsensorsforhybridpowersources
• Frequencyconverters
• Highcurrentautomotiveapplications.
CHARACTERISTICS
Tolerance
TCR
Operating
Temperature
Derating
±1%(F), ±5%(J)
20°C-60°C
Max. ±200ppm/°C
-55°C to 170°C
PERFORMANCE DATA
Thermal Shock
Short Time Overload
Resistance to Soldering Heat
Moisture Resistance
High Temperature Exposure
Vibration High Frequency
Inductance
Load Life
-65°C, 25°C, 125°C, 25°C 25cycles
Rated Power X 5 for 5 secs. ±0.2%
350°C 30 sec. or 250°C 10 min. ±0.2%
90~98%RH,+25°C,+65°C,-10°C 10 cycles ±0.2%
140°C for 250 hours ±0.2%
15g 10 to 2000Hz 36 cycles ±0.2%
90 min “ON” 30 min “OFF” for 2000 hours ±1.0%
±0.1%
<3nH
EBW Series
0.220"
5.6mm
0.630"
16mm
0.344" / 8.75mm
(0.244" / 6.2mm)
L
A
W
T max.
trimming area
electron
beam
welding
0.020"
0.5mm
Pulse Energy (J)
Power (W)
Time (msec.)
EBWB
EBWA
1
0.01
10
100
0.1
1000
10,000
0.01
0.0001
0.1
1
0.001
10
100
1,00010,000
0.010.0001 0.1 10.001 10 100
EBWA-MR0020FET
Series
Electron
Beam Weld
Size Alloy
M = Maganin
N = NiCr
Resistance Tolerance
F = 1%
J = 5%
Tape and reel
EBWA: 3000 pc/reel
EBWB: 2000 pc/reel
RoHS Compliant
15.70mm ±.10
11.00mm ±.10
0.30mm ±.10
2.00mm ±.10
2.00mm ±.10
1.75mm ±.10
1.75mm ±.10
11.50mm ±.10
7.50mm ±.10
12.00mm ±.10
24.00mm ±.30
16.00mm ±.30
10 pitch cumulative
tolerance on tape ±0.2
4.00mm ±.10
10 pitch cumulative
tolerance on tape ±0.2
4.00mm ±.10
Ø1.50mm +10/-0
Ø1.50mm +10/-0
8.00mm ±.10
8.00mm ±.10
EBWA EBWB
5.50mm ±.10
2.10mm ±.10
2.10mm ±.10
Manganin/Aluchrom Alloy Current Sense
PULSE ENERGY/POWER FOR CONTINUOUS OPERATION
DIMENSIONS
(in. / mm)
L W A T
EBWA 0.394" 0.205" 0.079" 0.024"
EBWB 0.591" 0.305" 0.165" 0.039"
10mm +.3/-.2 5.2mm +.3/-.2 2mm +0/-.5 0.6 max.
15mm ±.2 7.75mm +.3/-.2 4.2mm +.1/-.7 1.0 max.
EBWA: Max. curve is only valid for the resistance value 0.5m. The
min. curve is only valid for the resistance value 4m. For other resistance values the area in between the max. and the min. curve is valid
EBWB: Max. curve is only valid for the resistance value 0.2m. The
min. curve is only valid for the resistance value 2m. For other resistance values the area in between the max. and the min. curve is valid
Land Pattern
Tape and Reel
Standard Part Numbers
EBWA-MR0005FE
EBWA-MR0010FE
EBWA-NR0020FE
EBWA-NR0030FE
EBWA-NR0040FE
EBWB-MR0002FE
EBWB-MR0005FE
EBWB-NR0010FE
EBWB-NR0020FE
EBWB-NR0030FE
ORDERING INFORMATION
5
Reel: ~12.95" (329mm)
Qty. per reel: EBWA: 3000pcs
EBWB: 2000pcs
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