K1500GAP

Overview

The Littelfuse K1500GAP is a high-voltage trigger diode, classified as a SIDAC thyristor, designed for voltage-triggered switching and overvoltage control. It operates within a breakover voltage range of 140V to 170V. The device features a maximum hold current of 150 mA and supports a peak current rating of 1 A. It is housed in a DO-15 axial leaded package, suitable for through-hole mounting. This component belongs to the Kxxxzy series and is RoHS3 compliant, providing reliable protection in electronic circuits requiring precise voltage triggering.

Feature Summary

• Provides bidirectional voltage-triggered switching capabilities for circuit protection
• Features sharp breakdown voltage characteristics with low slope resistance
• Designed for robust overvoltage control in demanding electronic applications

Applications

• Voltage-triggered switching in electronic circuits
• Overvoltage protection systems
• Triggering devices for silicon-controlled rectifiers (SCRs) or triacs

Procurement Notes

Verify that the specific part number K1500GAP matches the required DO-15 package and voltage specifications. Confirm RoHS3 compliance status if environmental regulations apply to your assembly. Ensure the supplier provides official Littelfuse documentation to validate the 140-170V breakover range and 1A current rating. Cross-reference the manufacturer code to avoid confusion with similar SIDAC variants.

Selection Notes

Select this component when a bidirectional trigger device with a 140-170V breakover threshold is required. The DO-15 package offers higher power handling compared to smaller surface-mount options. Consider the 150 mA hold current limit to ensure proper latching behavior in the target circuit design. This part is suitable for AC line protection and general overvoltage suppression tasks.

Part Context

The K1500GAP is part of Littelfuse's broader SIDAC family, specifically engineered for high-voltage triggering applications. It complements other thyristor products by offering a dedicated solution for voltage-sensitive switching. The DO-15 form factor distinguishes it from lower-power DIACs, making it appropriate for industrial and commercial electronics where robust surge handling is necessary.

FAQ

Is the K1500GAP a unidirectional or bidirectional device?

The K1500GAP is a bidirectional trigger diode, meaning it conducts current in both directions once the breakover voltage is reached.

What is the maximum current rating for the K1500GAP?

The device supports a peak current rating of 1 A, with a maximum hold current of 150 mA.