FKN08PN40

Triacs Overview

The FKN08PN40 is a logic-sensitive gate TRIAC manufactured by onsemi, designed for AC power control applications. It features a 400 V repetitive peak off-state voltage and an RMS on-state current of 0.8 A. The device is housed in a TO-92-3 through-hole package, providing a compact solution for low-power switching tasks. Its logic-sensitive gate characteristic allows direct interfacing with standard logic outputs, simplifying circuit design while ensuring reliable operation in various consumer and industrial electronic devices requiring precise AC load management.

Triacs Feature Summary

• Logic-sensitive gate structure enables direct drive from standard logic circuits without additional triggering components.
• High dv/dt rating ensures robust immunity against false triggering during rapid voltage transitions.
• Compact TO-92-3 through-hole package facilitates easy integration into legacy and space-constrained designs.

Triacs Applications

• Lighting dimmers for incandescent and LED loads
• Small motor speed control in household appliances
• Solid-state relay (SSR) output stages

Triacs Procurement Notes

Verify the specific suffix code to confirm the exact tape-and-reel or bulk packaging configuration, as availability may vary by region. Ensure the procurement channel provides valid RoHS compliance documentation consistent with current environmental regulations. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm authenticity and traceability before finalizing orders.

Triacs Selection Notes

Select this component when a low-current AC switch requires direct logic interface compatibility. The 400 V rating suits single-phase mains applications where higher voltage ratings are unnecessary. Consider the thermal dissipation capabilities of the TO-92 package relative to the expected duty cycle and ambient temperature conditions to ensure long-term reliability under continuous operation.

Triacs Part Context

This TRIAC belongs to onsemi's general-purpose discrete thyristor family, targeting cost-sensitive consumer electronics markets. It complements higher-power TRIACs by offering a specialized solution for sub-1 A applications. The product line emphasizes ease of use and reliability, aligning with industry standards for small-signal AC control in white goods and lighting systems.

Triacs Replacement Considerations

Public confirmed substitute part numbers: N/A

Triacs FAQ

What type of gate trigger sensitivity does the FKN08PN40 support?

It supports logic-sensitive gate triggering, allowing it to be driven directly by standard logic levels without requiring high gate current.

Is the FKN08PN40 suitable for high-frequency switching applications?

No, TRIACs like the FKN08PN40 are generally intended for line-frequency (50/60 Hz) AC control applications rather than high-frequency switching.