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.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
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 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
NC20J00682JBA
AVX
Resistor
MC01W0805122K6
MULTICOMP
Resistor
MC0125W1206130K1
MULTICOMP
Resistor
ERJ6ENF2262V
Panasonic
Resistor
ERJP06F4641V
Panasonic
Resistor
ERJPA3F2262V
Panasonic
Resistor
ERJ8ENF2262V
Panasonic
Resistor
ERJ-6ENF2262V
Panasonic
Resistor
CPF0603B22K6E1
TE Connectivity
Resistor
MC1206S4F1330T5E
MULTICOMP
Resistor
MC0125W12061133R
MULTICOMP
Resistor
ERJ8ENF1330V
Panasonic
Resistor
ERJ6ENF1330V
Panasonic
Resistor
ERA-8AEB4023V
Panasonic
Resistor
ERA-8AEB202V
Panasonic
Resistor
RC0805FR-1010KL
YAGEO (PHYCOMP)
Resistor
ERJ-6ENF4872V
Panasonic
Resistor
ERJ-6ENF2103V
Panasonic
Resistor
ERJ-6ENF1620V
Panasonic
Resistor
ERJ-6ENF1804V
Panasonic
Resistor
ERJ-6ENF4870V
Panasonic
Resistor
RN73C2A2K21BTDF
TE Connectivity
Resistor
RN73C2A100RBTDF
TE Connectivity
Resistor
RN73C2A30K1BTDF
TE Connectivity
Resistor