Durable Metal Foil Resistor Walter Elec STE1206A1W0R100F with Alumina Ceramic Substrate and Epoxy Adhesion Layer
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Product Description
Product Overview
The STE series is a range of Metal Foil Current Sensing Resistors designed for accurate current measurement. These resistors are available in various sizes and materials, offering high performance and reliability for demanding applications.
Product Attributes
- Brand: STE Series
- Material: MnCu alloy, Alloy, Special
- Substrate: Alumina Ceramic
- Adhesion Layer: Epoxy
- Resistive Element: Cu alloy
- Terminal Electrode: SnNiCu
- Protective Coating: Flame-retardant epoxy (Green, UL-94-V0 compliant)
- Marking Coating: Flame-retardant epoxy (Black, UL-94-V0 compliant)
Technical Specifications
| Part Number Series | Size (W x L x T) | Resistance Value (m) | Power Rating (Watt) | Resistance Tolerance (%) | TCR (ppm) |
|---|---|---|---|---|---|
| STE0603 | 0.900.20 x 1.700.20 x 0.650.20 mm | R005~R60 | 0.50 | 0.5%(D), 1%(F) | 50, 100 |
| STE0805 | 1.350.20 x 2.100.20 x 0.650.20 mm | R003~R200 | 0.75 | 0.5%(D), 1%(F) | 50, 100 |
| STE1206 | 1.700.20 x 3.300.20 x 0.650.20 mm | R003~R400 | 1.0 | 0.5%(D), 1%(F) | 50, 100 |
| STE2010 | 2.600.20 x 5.100.20 x 0.650.20 mm | R002~R400 | 1.5 | 0.5%(D), 1%(F) | 50, 100 |
| STE2512 | 3.200.30 x 6.400.30 x 0.650.20 mm | R002~R400 | 2.0 | 0.5%(D), 1%(F) | 50, 100 |
| STE3921 | 5.100.30 x 11.100.30 x 0.650.20 mm | R002~R100 | 3.0 | 0.5%(D), 1%(F) | 50, 100 |
| STE4527 | 7.101.0 x 11.601.0 x 0.650.30 mm | R002~R100 | 4.0 | 0.5%(D), 1%(F) | 50, 100 |
Reliability Test Standards
| Parameter | Conditions | Requirements | Reference |
|---|---|---|---|
| Short Time Over Load | P= 2.5Pr ; T=252C , t = 5sec. | (1.0%+0.5m) | IEC60115-1 4.13 |
| High Temp. Exposure | T = +1702C ; t = 1000h | (1.0%+0.5m) | IEC60115-1 4.25 |
| Low Temp. Storage | T = -552C ; t = 1000h | (1.0%+0.5m) | IEC60115-1 4.25 |
| Moisture Load Life | (6095RH) Vtest = Vmax ; T=602C ; RH=95% ; t= 90min ON , 30min OFF , 1000h | (2.0%+0.5m) | IEC60115-1 4.25 |
| Thermal Shock | [-55C 30min. R.T. 3min. +155C 30min. R.T. 3min ], 100 Cycles | (1.0%+0.5m) | IEC60115-1 4.19 |
| Load Life at 70C | Vtest = Vmax ; T=702C ;t= 90min ON , 30min OFF,1000h | (2%+0.5m) | IEC60115-1 4.25 |
| Solderability | Dip into solder at T = 2455C , t = 30.5sec. | The covered area >95% | IEC60115-1 4.17 |
| Resistance to Solder Heat | Through Reflow T= 2755C , t =201sec. | (1.0%+0.5m) | IEC60115-1 4.18 |
| Mechanical Shock | a =100G , t =11ms, 5 times shock | (1.0%+0.5m) | IEC60115-1 4.21 |
| Substrate Bending | Span:90mm ; Bend Width:2mm ; Test board: Glass-Epoxy Board ; Thickness =1.6mm | (1.0%+0.5m) | IEC60115-1 4.33 |
Environmental Characteristics
- Operating Temperature: -55155
- Storage Conditions:
- 2 years under airtight conditions at +1040, 75% RH.
- 30 days maximum without dew at +1060, 95% RH.
Recommended Solder Pad Dimensions
| Part Number Series | P (mm) | W (mm) | D (mm) | Loading (Watt) |
|---|---|---|---|---|
| STE0603 | 0.60 | 0.92 | 1.30 | 0.50 |
| STE0805 | 0.80 | 1.44 | 1.40 | 0.75 |
| STE1206 | 1.20 | 1.84 | 1.80 | 1.0 |
| STE2010 | 2.70 | 2.88 | 2.65 | 1.5 |
| STE2512 | 3.10 | 3.57 | 3.10 | 2.0 |
| STE3921 | 5.00 | 5.75 | 4.50 | 3.0 |
| STE4527 | 5.20 | 8.05 | 4.65 | 4.0 |
Recommended Soldering Parameters
Wave Solder Temperature Profile
Preheating: 100~130, max. 100 sec. Soldering: 250~265 max. 10 sec. Maximum temperature: 2605, max. 10sec.
Solder Reflow Temperature Profile
Preheating: 145 15, max. 120 sec. Soldering: min. 220, max. 60 sec. Maximum 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