Littelfuse, Inc. has launched its SSA series current shunt resistors — the first of its kind in the Littelfuse portfolio. These two-terminal, ultra-low resistance shunt resistors are uniquely designed to meet the increasing demand for accurate current measurement in high-performance applications.
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
Source: Littelfuse, Inc. demanding rigorous current sensing due to high-power requirements.
This versatility makes it an ideal choice for a wide range of markets and applications, including:
- automotive electronics,
- electric vehicle 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," said 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 mΩ to 4.0 mΩ.
- Power rating: Up to 15 W.
- Tolerance: As low as ±1.0%.
- TCR: Down to ±50 ppm/º C.
Availability
The SSA series Current Shunt Resistors are available in tape-and-reel quantities of 3,000. Place sample requests through authorized Littelfuse distributors worldwide.
