K3000F1

Overview

The K3000F1 is a SIDAC device manufactured by Littelfuse Inc., designed for triggering applications in analog mixed-signal circuits. It features a bidirectional breakdown voltage range of 270 V to 330 V and operates within a junction temperature range of -40°C to 125°C. The component is housed in a TO-202 long lead package with two pins. Key electrical specifications include a maximum holding current of 150 mA, a peak output current of 1 A, and a conduction current of 10 µA. The device complies with RoHS3 standards and carries an EAR99 classification.

Feature Summary

• Bidirectional triggering capability for AC circuit protection
• Robust thermal performance suitable for industrial environments
• Compliant with environmental regulations including RoHS3

Applications

• Triggering devices for thyristors and triacs
• Overvoltage protection in AC power lines
• Lightning surge protection circuits

Procurement Notes

Verify the obsolete status of this part number before procurement planning. Littelfuse Inc. has officially discontinued the K3000F1 as of September 2022. Sourcing may require checking secondary market distributors or evaluating alternative replacement components from the same manufacturer family that maintain compatible electrical characteristics and package dimensions.

Selection Notes

Select this component only if legacy compatibility is required due to its discontinued status. Ensure the design accommodates the 270 V to 330 V breakdown voltage range and the 1 A peak current rating. Verify that the TO-202 long lead package fits the mechanical constraints of the target PCB layout. Confirm that the operating temperature range meets the specific environmental requirements of the application.

Part Context

The K3000F1 belongs to the SIDAC family of trigger devices produced by Littelfuse Inc. These components are specifically engineered for high-voltage switching applications. The device utilizes a silicon structure optimized for rapid response to overvoltage events. It serves as a critical element in protecting sensitive semiconductor switches from transient voltage spikes in AC systems.

Replacement Considerations

Public confirmed substitute part numbers: None identified.