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Cost-effective two-terminal, ultra-low resistance shunt resistors for current sensing

Date: 06/11/2023
Littelfuse launched its new SSA Series current shunt resistors for accurate current measurement in high-performance applications.

CURRENT


Littelfuse says "Unlike competing technologies such as Hall effect sensors, current transformers, flux gate sensors, and Rogowski coils, the Littelfuse Current Shunt Resistor delivers a more efficient solution that works well in both AC and DC circuits. With a higher power rating than metal foil resistors, the SSA Series excels in applications demanding rigorous current sensing due to high-power requirements."

These two-terminal, ultra-low resistance shunt resistors suggested as ideal choice for a wide range of markets and applications, including:

automotive electronics,
EV charging,
large appliances,
data centers,
industrial,
power modules, and
frequency converters

“Accurate current measurement is crucial for the optimal performance of electrical and electronic devices," says Stephen Li, Product Manager at Littelfuse. "With the ever-increasing demand for high-performance devices, our SSA Series Current Shunt Resistors offer a cost-effective solution for both AC and DC applications requiring demanding current sensing.”

The CSR Series offers the following key features and benefits:

Cost-effective: More affordable than competing technologies.
Versatility: Compatible with both AC and DC circuits.
Compact Size: Ideal for space-constrained applications.
Good Heat Dissipation: Ensures reliable performance.
English Case Sizes: Available in 2512, 3921, and 5931.
Resistance: Range from 0.2 – 4.0 M?.
Power Rating: Up to 15 W.
Tolerance: As low as ±1.0%.
TCR: Down to ±50 ppm / ºc.

"Equipped with these advanced features, the SSA Series Current Shunt Resistors provide an affordable solution for accurate current measurement and control," adds Li. "We are confident that our customers will greatly benefit from the exceptional performance and reliability of this new addition to our current sensing resistor product range."

Availability: The SSA Series Current Shunt Resistors are available in tape-and-reel quantities of 3,000.

Additional information on the latest series release is available at: https://www.littelfuse.com/products/current-sensing-resistors/metal-type-current-shunt-resistors/ssa