WSR5R1000FEA Vishay Resistor (Resistor Moulded) In Stock
The Vishay WSR5R1000FEA is a 0.1 Ω surface-mount wirewound current sense resistor in a large SMT package (11.56 mm x 2.41 mm height) rated at 5 W power dissipation, featuring anti-sulfur construction for enhanced reliability in harsh environments. It provides accurate and stable low-resistance current sensing across industrial, automotive, and power supply applications. REACH-compliant and RoHS-conformant, this resistor ships with a 5-week lead time.
- Manufacturer
- Vishay
- Package
- Resistor Moulded
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- WSR5R1000FEA Datasheet PDF
- Category
- Resistor
- Price
- From $0.8478(MOQ 5)
- Temp Range
- -65.0°C to 275.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of WSR5R1000FEA?
- 0.1 Ω resistance at 5 W power rating enables accurate high-current sensing with minimal voltage drop in power stages
- Anti-sulfur construction prevents contact degradation in industrial and automotive environments with airborne sulfur contamination
- Large SMT package (11.56 mm x 2.41 mm) provides superior thermal dissipation and stable resistance under continuous load
What is WSR5R1000FEA used for?
The Vishay WSR5R1000FEA is used as a low-value current sense element in motor controllers, power converters, and battery management systems where accurate measurement of 10 A to 50 A load currents is required with minimal power loss. Its 5 W rating and large package footprint allow continuous operation without derating in ambient temperatures up to 70 °C. The anti-sulfur feature makes it reliable for outdoor power equipment, automotive charging stations, and industrial control panels exposed to harsh atmospheric conditions.
What are the specifications of WSR5R1000FEA?
| Reach Compliance Code | Compliant |
| Factory Lead Time | 5Weeks |
| YTEOL | 10 |
| Additional Feature | ANTI-SULFUR |
| Construction | Rectangular |
| JESD-609 Code | e2 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 2.41mm |
| Package Length | 11.56mm |
| Package Style | SMT |
| Package Width | 6.98mm |
| Packing Method | TR, EMBOSSED PLASTIC, 13 INCH |
| Rated Power Dissipation (P) | 5W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200 |
| Resistance | 0.1Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 4527 |
| Surface Mount | YES |
| Technology | METAL STRIP |
| Temperature Coefficient | 75ppm/°C |
| Terminal Finish | TIN SILVER |
| Terminal Shape | WRAPAROUND |
| Tolerance | 1% |
| Working Voltage | 0.71V |
| Package | Resistor Moulded |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
Where can I find the WSR5R1000FEA datasheet?
WSR5R1000FEA Datasheet DownloadOfficial datasheet from Vishay
What are equivalent replacements for WSR5R1000FEA?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the WSR5R1000FEA's 0.1 Ω resistance support current sensing at high load currents?
At 0.1 Ω, the WSR5R1000FEA generates a sense voltage of 1 V per 10 A of load current, which is within the input range of most current sense amplifiers. For a 20 A motor drive application, the sense voltage is 2 V, providing a strong signal-to-noise ratio while dissipating only 4 W of power — within the 5 W rating. This makes it ideal for closed-loop current control in servo drives and power converters.
Why does the WSR5R1000FEA include anti-sulfur construction, and where is this feature critical?
Anti-sulfur construction uses silver-free or sealed termination materials that resist corrosion from hydrogen sulfide (H2S) and sulfur dioxide (SO2) present in industrial, automotive, and coastal environments. Without this protection, silver-containing terminations can form silver sulfide, increasing contact resistance by 10 Ω or more over time and causing circuit failures. The WSR5R1000FEA's anti-sulfur design ensures stable 0.1 Ω resistance over its service life in such environments.
What power dissipation capability does the WSR5R1000FEA offer, and how does its package size support thermal management?
The WSR5R1000FEA is rated at 5 W continuous power dissipation, supported by its large 11.56 mm x 2.41 mm SMT package footprint. The large body area provides improved thermal coupling to the PCB copper plane, reducing junction-to-board thermal resistance and allowing the resistor to operate continuously at full rated power without exceeding its maximum temperature rating of 170 °C, provided adequate copper pour area is used on the PCB.
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Why Buy from FindMyChip
About Vishay
Vishay is a leading electronic component manufacturer. FindMyChip sources Vishay ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $1.1623 | $5.81 |
| 250+ | $1.1202 | $280.06 |
| 500+ | $1.0321 | $516.03 |
| 1000+ | $0.9890 | $989.00 |
| 3000+ | $0.8800 | $2640.00 |
| 4500+ | $0.8478 | $3814.92 |
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