The WSL2512R012FTA is a precision, low-value resistor manufactured by Vishay. Part of the Power Metal Strip® WSL series, it's engineered for high-power current sensing applications. The resistor offers a combination of low resistance, high power handling, and excellent long-term stability, making it well-suited for demanding automotive, industrial, and consumer electronics applications.

Applications

• Current sensing in power supplies
• Motor control systems
• Inverter circuits
• Automotive electronic control units (ECUs)
• Battery management systems (BMS)
• High-current measurement

Features

• Low resistance value (0.012 Ohms)
• High power rating (2 Watts)
• Power Metal Strip® construction
• Low inductance
• Excellent long-term stability
• RoHS compliant
• AEC-Q200 qualified
• All-welded construction

Benefits

• Accurate current measurement due to low resistance and tight tolerance.
• Reduced power losses due to low resistance value, increasing efficiency.
• Reliable operation in harsh environments due to robust construction and AEC-Q200 qualification.
• Suitable for high-frequency applications due to low inductance.
• Consistent performance over time due to excellent long-term stability.

Technical Specifications

The WSL2512R012FTA has a resistance of 0.012 Ohms with a tolerance of ±1%. Its power rating is 2 Watts at 70°C case temperature. The temperature coefficient of resistance (TCR) is very low, ensuring stable resistance values over a wide temperature range. The resistor utilizes a solid metal alloy resistive element. It is available in a 2512 surface mount package. The operating temperature range is typically -65°C to +170°C.

This component is primarily used in applications requiring precise current measurement for control or protection purposes. The low inductance makes it suitable for circuits operating at higher frequencies, where inductive effects can degrade performance. The all-welded construction enhances its reliability in demanding environments.