SG26

Inrush Current Limiters (ICL) Overview

The SG26 is a radial leaded inrush current limiter (ICL) from the Vishay Ametherm SURGE-GARD series. It utilizes NTC thermistor technology to suppress high initial charging currents in electronic circuits. The component features a nominal resistance of 5 Ohms with a tolerance of ±15% and supports a steady-state current rating of 12 A. It is designed for PCB mounting with an outside kink lead configuration, ensuring secure mechanical attachment. The unit operates within a temperature range of 0°C to +65°C and carries UL approval for safety compliance.

Inrush Current Limiters (ICL) Feature Summary

• NTC thermistor construction for effective inrush current suppression
• Radial through-hole design with outside kink leads for PCB mounting
• UL approved for enhanced safety certification

Inrush Current Limiters (ICL) Applications

• Power supply input stages
• Transformer primary circuits
• Capacitive load protection

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific ordering suffix against the official Vishay datasheet to confirm lead type and packaging details. Ensure the selected variant matches the required resistance tolerance and current rating for the target application. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and authenticity before purchase.

Inrush Current Limiters (ICL) Selection Notes

Select the SG26 based on its 5 Ohm cold resistance and 12 A steady-state current capacity. Confirm that the radial package dimensions fit the PCB layout constraints. Verify that the operating temperature range meets the environmental requirements of the installation site. Check for necessary regulatory approvals such as UL listing if required by the end-product specifications.

Inrush Current Limiters (ICL) Part Context

The SG26 belongs to the SURGE-GARD family of inrush current limiters manufactured by Vishay Ametherm. This series is widely used in power electronics to protect components from damaging surge currents during startup. The SG26 specifically offers a balance of moderate resistance and high current handling capability suitable for various AC/DC power applications.

Inrush Current Limiters (ICL) Replacement Considerations

Consult the official Vishay Ametherm cross-reference documentation for verified substitute part numbers. Do not assume functional equivalence between different manufacturers without verifying electrical parameters and physical dimensions.