SK025LTP

Overview

The SK025LTP is a silicon-controlled rectifier (SCR) from the Teccor Sxx25x series, manufactured by Littelfuse. It features a 1000V repetitive peak off-state voltage and a 25A on-state current rating. The device utilizes a TO-220-2 package with a glass-passivated junction for durability. Key electrical parameters include a maximum gate trigger current of 100mA and an on-state voltage drop of 1.4V at rated current. The component exhibits a holding current of 30mA and a non-repetitive peak surge current capability of 250A. It operates within a junction temperature range of -40°C to +125°C and complies with RoHS standards.

Feature Summary

• Glass-passivated junctions ensure long-term reliability and parameter stability under harsh conditions.
• Sensitive gate design allows for direct interfacing with microprocessors and logic circuits.
• High surge current capability provides robust protection against transient overcurrent events.

Applications

• Strobe light control circuits
• Fluid level sensing systems
• Capacitive-discharge ignition (CDI) systems

Procurement Notes

Verify the specific ordering suffix to confirm package type and compliance status. Confirm that the requested quantity matches the manufacturer's standard factory pack size. Ensure the procurement channel sources directly from authorized Littelfuse distributors to guarantee authenticity. Check for any recent product change notices regarding material composition or testing requirements before finalizing orders.

Selection Notes

Select this component when high voltage blocking and moderate current switching are required in a through-hole configuration. The 1000V rating suits applications with significant line voltage spikes. The TO-220-2 package facilitates heat dissipation for continuous operation. Verify that the gate trigger current requirements of the driving circuit align with the device's sensitive gate specifications.

Part Context

This SCR belongs to the Teccor Sxx25x family, designed for efficient switching in low-current control circuits. The series emphasizes fast turn-off capabilities to reduce commutation failure risks. These devices are engineered for precise control in demanding electronic environments, offering a balance of voltage handling and current capacity for industrial and consumer applications.

Replacement Considerations

Consult Littelfuse official substitution guides for compatible SCRs with matching voltage and current ratings. Verify pinout compatibility for TO-220-2 packages before swapping components. Ensure thermal management requirements remain consistent with the original design specifications.

FAQ

What is the maximum repetitive peak off-state voltage for the SK025LTP?

The maximum repetitive peak off-state voltage (VDRM) is 1000V.

Does the SK025LTP feature a sensitive gate?

Yes, the device has a sensitive gate with a maximum gate trigger current of 100mA, allowing direct interface with microprocessors.

What is the operating junction temperature range?

The operating junction temperature range is from -40°C to +125°C.