Q4016NH3TP

Triacs Overview

The Littelfuse Q4016NH3TP is a bidirectional triac designed for high-power AC switching applications. It features a rated RMS on-state current of 16 A and a repetitive peak off-state voltage (VDRM) of 400 V. The device utilizes an I2T gate structure, requiring a typical gate trigger current (Igt) of 35 mA and a gate trigger voltage (Vgt) of 2 V. It exhibits a low on-state voltage of 1.6 V and a maximum holding current of 50 mA. The component operates within a temperature range of -40°C to +125°C and is housed in a surface-mount SMTO-263-2 package.

Triacs Feature Summary

• High power density with 16 A RMS current capability in a compact SMD footprint
• Robust triggering characteristics via I2T gate technology for reliable commutation
• Low on-state voltage drop to minimize conduction losses and thermal stress
• Extended operating temperature range suitable for demanding industrial environments

Triacs Applications

• Industrial motor speed control systems
• Solid state relays for AC load switching
• Lighting dimmer circuits for commercial and industrial fixtures
• Heating element control in HVAC equipment

Triacs Procurement Notes

Verify the specific suffix 'H3' against official Littelfuse documentation to confirm the exact gate trigger specifications and pinout configuration. Ensure that the SMTO-263-2 package dimensions align with the target PCB layout. Confirm compliance requirements such as RoHS status prior to finalizing procurement orders.

Triacs Selection Notes

Select this component when a 400 V rating is sufficient for the AC line voltage and a 16 A continuous current capacity is required. The 35 mA gate trigger current necessitates a driver capable of sourcing adequate gate current. Consider thermal management solutions given the power dissipation associated with 16 A operation in a surface-mount package.

Triacs Part Context

This part belongs to the Qxx16xHx series of high-current triacs from Littelfuse. The series is engineered for robust performance in power control applications. The 'N' typically denotes the voltage rating class, while 'H' indicates the specific gate sensitivity and construction type optimized for high reliability.

Triacs Replacement Considerations

Direct replacements must match the 16 A RMS current, 400 V blocking voltage, and SMTO-263-2 package. Verify that substitute devices offer comparable gate trigger currents and on-state voltages to ensure circuit compatibility without redesign.