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BWS03, BWS05 |
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BWS03, BWS05 |
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INTRODUCTION
These models are manufactured using electron beam welding technology. This allows the joining of different alloys
with great accuracy and tolerance. These models have heavy copper connectors, excellent long term stability and low
inductance. Maximum soldering temperatures of up to 350C for 30 seconds or 250C/10 min. Can be Mounted using
re-flow soldering or welding on copper. Applications include: Current sensors for hybrid power sources, frequency
converters and high current automotive applications.
GENERAL SPECIFICATIONS
| Model | Power (W) | Resistance [m目] |
Tolerance(%) |
TCR [ppm] |
Internal heat |
Operating Temperature |
| BWS03 | 3 | 0.5,1,2,3,4 |
▽1(F) ▽2(G) ▽5(J) |
▽50 (20-60C) | Rth< 10k/W | -55C to 170C |
| BWS05 | 5 | 0.5,1,2,3 | Max. ▽100 |
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CHARACTERISTICS
| Thermal Shock | [▽0.1%] -65C, 25C, 125C, 25 C 25cycles |
| Short time overload | [▽0.2%] Rated Power x 5 for 5 secs. |
| Resistance to Soldering Heat | [▽0.2%] 350C 30 sec or 250C 10 min |
| Moisture Resistance | [▽0.2%] 90 to 98% RH, +25C, +65C ,-10C 10 Cycle |
| High Temperature Exposure | [▽0.2%] 140C for 250hours |
| Vibration High Frequency | [▽0.2%] 15g 10 to 2000Hz 36Cycles |
| Inductance | [ <3nH ] |
| Load Life | [▽1.0%] 90 min ※ON§ 30 min ※OFF§ for 2000hours |
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DIMENSIONS AND
MATERIALS
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Model |
Value |
Material |
Thickness(t) |
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BWS03-M |
0.5m目 |
Manganin |
0.88mm+/-0.05 |
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BWS03-M |
1m目 |
Manganin |
0.43mm+/-0.05 |
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BWS03-N |
2m目 |
NiCr Alloy |
0.64mm+/-0.05 |
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BWS03-N |
3m戒 |
NiCr Alloy |
0.43mm+/-0.05 |
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BWS03-N |
4m戒 |
NiCr Alloy |
0.32mm+/-0.05 |
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BWS05-M |
0.5m目 |
Manganin |
0/56mm+/-0.05 |
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BWS05-N |
1m目 |
NiCr Alloy |
0.90mm+/-0.05 |
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BWS05-N |
2m目 |
NiCr Alloy |
0.45mm+/-0.05 |
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BWS05-N |
3m目 |
NiCr Alloy |
0.30mm+/-0.05 |
DIMENSIONS
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DERATING CURVES
THEORETICAL PCB LAYOUT
ORDERING PROCEDURE EXAMPLE
Copyright©, RARA Electronics Corporation
