Current sensing resistor Walter Elec STE0805MW75R030F metal foil type with 075 watt power rating and low TCR
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MOQ:
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Delivery Time:
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Product Description
STE Series Current Sensing Resistor
The STE series are metal foil current sensing resistors designed for high-precision current measurement. They are suitable for applications requiring accurate monitoring of current flow.
Product Attributes
- Brand: STE
- Material: Metal Foil (MnCu alloy, Alloy, Special)
- Substrate: Alumina Ceramic
- Protective Coating: Flame-retardant epoxy (UL-94-V0, Green)
- Marking Coating: Flame-retardant epoxy (UL-94-V0, Black)
Technical Specifications
| Part Number Series | Dimensions (W x L x T) (mm) | Resistance Value (m) | Power Rating (Watt) | Resistance Tolerance (%) | TCR (ppm) |
| STE0603*W50-series | 0.900.20 x 1.700.20 x 0.650.20 | 5~9 | 0.5 | 1%(F) | 100 |
| STE0603*W50-series | 0.900.20 x 1.700.20 x 0.650.20 | 10~60 | 0.5 | 0.5%(D) / 1%(F) | 50 |
| STE0805*W75-series | 1.350.20 x 2.100.20 x 0.650.20 | 3~9 | 0.75 | 1%(F) | 100 |
| STE0805*W75-series | 1.350.20 x 2.100.20 x 0.650.20 | 10~200 | 0.75 | 0.5%(D) / 1%(F) | 50 |
| STE1206*1W0-series | 1.700.20 x 3.300.20 x 0.650.20 | 3~9 | 1.0 | 1%(F) | 100 |
| STE1206*1W0-series | 1.700.20 x 3.300.20 x 0.650.20 | 10~400 | 1.0 | 0.5%(D) / 1%(F) | 50 |
| STE2010*1W5-series | 2.600.20 x 5.100.20 x 0.650.20 | 2~9 | 1.5 | 1%(F) | 100 |
| STE2010*1W5-series | 2.600.20 x 5.100.20 x 0.650.20 | 10~400 | 1.5 | 0.5%(D) / 1%(F) | 50 |
| STE2512*2W0-series | 3.200.30 x 6.400.30 x 0.650.20 | 2~9 | 2.0 | 1%(F) | 100 |
| STE2512*2W0-series | 3.200.30 x 6.400.30 x 0.650.20 | 10~400 | 2.0 | 0.5%(D) / 1%(F) | 50 |
| STE3921*3W0-series | 5.100.30 x 11.100.30 x 0.650.20 | 2~9 | 3.0 | 1%(F) | 100 |
| STE3921*3W0-series | 5.100.30 x 11.100.30 x 0.650.20 | 10~100 | 3.0 | 0.5%(D) / 1%(F) | 50 |
| STE4527*4W0-series | 7.101.0 x 11.601.0 x 0.650.30 | 2~9 | 4.0 | 1%(F) | 100 |
| STE4527*4W0-series | 7.101.0 x 11.601.0 x 0.650.30 | 10~100 | 4.0 | 0.5%(D) / 1%(F) | 50 |
Reliability Test Standards
| Test Parameter | Conditions | Requirements |
| Short Time Over Load | P= 2.5Pr ; T=252C , t = 5sec. | (1.0%+0.5m) |
| High Temp. Exposure | T = +1702C ; t = 1000h | (1.0%+0.5m) |
| Low Temp. Storage | T = -552C ; t = 1000h | (1.0%+0.5m) |
| Moisture Load Life | (6095RH) Vtest = Vmax ; T=602C ; RH=95% ; t= 90min ON , 30min OFF , 1000h | (2.0%+0.5m) |
| Thermal Shock | [-55C 30min. R.T. 3min. +155C 30min. R.T. 3min ], 100 Cycles | (1.0%+0.5m) |
| Load Life at 70C | Vtest = Vmax ; T=702C ;t= 90min ON , 30min OFF,1000h | (2%+0.5m) |
| Solderability | Dip into solder at T = 2455C , t = 30.5sec. | Covered area >95% |
| Resistance to Solder Heat | Through Reflow T= 2755C , t =201sec. | (1.0%+0.5m) |
| Mechanical Shock | a =100G , t =11ms, 5 times shock | (1.0%+0.5m) |
| Substrate Bending | Span:90mm ; Bend Width:2mm ; Board: Glass-Epoxy, Thickness =1.6mm | (1.0%+0.5m) |
Environmental Characteristics
- Operating Temperature: -55155
- Storage Conditions:
- 2 years under airtight conditions (+1040, 75% RH)
- 30 days maximum without dew (+1060, 95% RH)
Recommended Solder Pad Dimensions
| Part Number Series | P (mm) | W (mm) | D (mm) | Loading (Watt) |
| STE0603MW50-series | 0.50 | 0.92 | 1.35 | 0.50w |
| STE0603MW50-series | 0.60 | 0.92 | 1.30 | 0.50w |
| STE0805MW75-series | 0.50 | 1.44 | 1.55 | 0.75w |
| STE0805MW75-series | 0.80 | 1.44 | 1.40 | 0.75w |
| STE1206M1W0-series | 0.60 | 1.84 | 2.10 | 1.0w |
| STE1206M1W0-series | 1.20 | 1.84 | 1.80 | 1.0w |
| STE2010M1W5-series | 0.70 | 2.88 | 3.65 | 1.5w |
| STE2010M1W5-series | 2.70 | 2.88 | 2.65 | 1.5w |
| STE2512M2W0-series | 0.60 | 3.57 | 4.35 | 2.0w |
| STE2512M2W0-series | 0.90 | 3.57 | 4.20 | 2.0w |
| STE2512M2W0-series | 3.10 | 3.57 | 3.10 | 2.0w |
| STE3921M3W0-series | 1.10 | 5.75 | 6.45 | 3.0w |
| STE3921M3W0-series | 1.70 | 5.75 | 6.15 | 3.0w |
| STE3921M3W0-series | 5.00 | 5.75 | 4.50 | 3.0w |
| STE4527M4W0-series | 1.20 | 8.05 | 6.65 | 4.0w |
| STE4527M4W0-series | 5.20 | 8.05 | 4.65 | 4.0w |
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina