Q2016LH4

Triacs Overview

The Q2016LH4 is a bidirectional triac from the Littelfuse Alternistor series, rated for 200 V repetitive off-state voltage and 16 A RMS on-state current. It features a non-repetitive surge current capacity of up to 200 A and utilizes an isolated tab configuration within a TO-220-2 package. Key electrical parameters include a maximum holding current of 50 mA, gate trigger voltage of 1.3 V, and gate trigger current of 35 mA. The device operates within a temperature range of -40 °C to +125 °C and exhibits a typical on-state voltage drop of 1.6 V.

Triacs Feature Summary

• Snubberless operation capability designed for AC switching and phase control applications
• Isolated tab construction providing enhanced thermal management and electrical isolation
• High dv/dt rating ensuring reliable commutation without false triggering

Triacs Applications

• Motor speed control systems
• Temperature regulation circuits
• Lighting dimmer applications

Triacs Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified partners. Confirm that the specific order matches the Q2016LH4 designation to ensure correct voltage and current ratings. Check for RoHS compliance status and verify packaging details against project requirements prior to finalizing procurement orders.

Triacs Selection Notes

Select this component when a 200 V blocking voltage and 16 A continuous current handling are required in a compact through-hole format. The isolated tab design is suitable for high-voltage isolation needs. Ensure the application does not exceed the 200 A non-repetitive surge limit during turn-on events.

Triacs Part Context

This part belongs to the Qxx16xHx series of low-power triacs manufactured by Littelfuse. These devices are engineered as solid-state switches for AC power control. The series offers various voltage ratings while maintaining consistent current handling capabilities across different models.

Triacs Replacement Considerations

Direct substitutes within the same family include Q2016LH4 variants with different suffixes if pinout compatibility is maintained. Cross-brand replacements require matching 200 V VDRM, 16 A IT(RMS), and TO-220-2 package dimensions.