Current sensing resistor Walter Elec STE1206M1W0R012F with 0.5 resistance tolerance and 100 ppm TCR rating
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Delivery Time:
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Product Description
STE Series Current Sensing Resistors
The STE series offers metal foil current sensing resistors designed for precise current measurement. These components are suitable for applications requiring accurate current detection and monitoring.
Product Attributes
- Brand: STE
- Material: Metal Foil (MnCu alloy, Alloy, Special)
- Substrate: Alumina Ceramic
- Protective Coating: Flame-retardant epoxy, UL-94-V0 compliant (Green)
- Marking Coating: Flame-retardant epoxy, UL-94-V0 compliant (Black)
Technical Specifications
| Part Number Series | Resistance Value (m) | Power Rating (Watt) | Resistance Tolerance (%) | TCR (ppm) | Dimensions (W x L x T) (mm) | Terminal Electrode (A) (mm) |
|---|---|---|---|---|---|---|
| STE0603*W50-series | R005~R60 | 0.5 | 1%(F), 0.5%(D) | 100, 50 | 0.900.20 x 1.700.20 x 0.650.20 | 0.500.20 (R005), 0.400.20 (R006*S~R060) |
| STE0805*W75-series | R003~R200 | 0.75 | 1%(F), 0.5%(D) | 100, 50 | 1.350.20 x 2.100.20 x 0.650.20 | 0.650.20 (R003), 0.500.20 (R004*S~R200) |
| STE1206*1W0-series | R003~R400 | 1.0 | 1%(F), 0.5%(D) | 100, 50 | 1.700.20 x 3.300.20 x 0.650.20 | 1.200.30 (R003), 0.680.30 (R004*S~R400) |
| STE2010*1W5-series | R002~R400 | 1.5 | 1%(F), 0.5%(D) | 100, 50 | 2.600.20 x 5.100.20 x 0.650.20 | 2.100.30 (R002~R003), 0.700.30 (R004*S~R400) |
| STE2512*2W0-series | R002~R400 | 2.0 | 1%(F), 0.5%(D) | 100, 50 | 3.200.30 x 6.400.30 x 0.650.20 | 2.800.30 (R002), 2.600.30 (R003), 1.050.30 (R004*S~R400) |
| STE3921*3W0-series | R002~R100 | 3.0 | 1%(F), 0.5%(D) | 100, 50 | 5.100.30 x 11.100.30 x 0.650.20 | 4.900.30 (R002), 4.550.30 (R003), 2.360.30 (R004*S~R100) |
| STE4527*4W0-series | R002~R100 | 4.0 | 1%(F), 0.5%(D) | 100, 50 | 7.101.0 x 11.601.0 x 0.650.30 | 5.000.40 (R002), 2.700.40 (R003*S~R100) |
Reliability Test Standards
| Test | Conditions | Requirements | IEC Standard |
|---|---|---|---|
| Short Time Over Load | P=2.5Pr; T=252C, t=5sec. | (1.0%+0.5m) | 60115-1 4.13 |
| High Temp. Exposure | T=+1702C, t=1000h | (1.0%+0.5m) | 60115-1 4.25 |
| Low Temp. Storage | T=-552C, t=1000h | (1.0%+0.5m) | 60115-1 4.25 |
| Moisture Load Life | (60, 95%RH), Vtest=Vmax; T=602C; RH=95%; t=90min ON, 30min OFF, 1000h | (2.0%+0.5m) | 60115-1 4.25 |
| Thermal Shock | [-55C 30min. R.T. 3min. +155C 30min. R.T. 3min.], 100 Cycles | (1.0%+0.5m) | 60115-1 4.19 |
| Load Life at 70C | Vtest=Vmax; T=702C; t=90min ON, 30min OFF, 1000h | (2%+0.5m) | 60115-1 4.25 |
| Solderability | Dip into solder at T=2455C, t=30.5sec. | The covered area >95% | 60115-1 4.17 |
| Resistance to Solder Heat | Through Reflow T=2755C, t=201sec. | (1.0%+0.5m) | 60115-1 4.18 |
| Mechanical Shock | a=100G, t=11ms, 5 times shock | (1.0%+0.5m) | 60115-1 4.21 |
| Substrate Bending | Span=90mm; Bend=2mm; Test board: Glass-Epoxy Board; Thickness=1.6mm | (1.0%+0.5m) | 60115-1 4.33 |
Environmental Characteristics
- Operating Temperature: -55155
- Storage Conditions:
- 2 years under airtight conditions (+1040, RH75%)
- 30 days maximum without dew (+1060, RH=95%)
Recommended Solder Pad Dimensions and Welding Conditions
| 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 |
Recommended Soldering Parameters
- Wave Solder Temperature Curve: Preheating: 100~130, max. 100 sec. Soldering: 250~265 max. 10 sec. Maximum allowable temperature: 2605, max. 10sec.
- Solder Reflow Temperature Curve: Preheating: 145 15, max. 120 sec. Soldering: min. 220, max. 60 sec. Maximum allowable temperature: 2605, max. 10sec.
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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