Q2010R4

Triacs Overview

The Littelfuse Q2010R4 is a bidirectional triac with an RMS on-state current rating of 10 A and a repetitive peak blocking voltage (VDRM) of 200 V. It utilizes an electrically isolated TO-220 package, providing a minimum isolation voltage of 2500 Vrms between the leads and the mounting tab. The device features glass-passivated junctions for long-term reliability and parameter stability. Key electrical specifications include a maximum DC gate trigger current (IGT) of 25 mA across quadrants I, II, III, and IV, and a peak one-cycle surge current (ITSM) of 150 A at 25 °C. The holding current (IH) is typically 35 mA.

Triacs Feature Summary

• Electrically isolated construction facilitates low-cost assembly and convenient packaging techniques by isolating the mounting tab from the semiconductor chip.
• Glass-passivated junctions provide a rugged barrier against contamination, ensuring long-term device reliability and parameter stability.
• Capable of triggering from blocking to conduction state for either polarity of applied voltage, suitable for AC switching and phase control.

Triacs Applications

• Speed and temperature modulation controls
• Lighting controls
• Static switching relays

Triacs Procurement Notes

Verify the specific ordering suffix 'R4' corresponds to the isolated TO-220 package variant as documented in the manufacturer's catalog tables. Confirm that the 200 V voltage rating aligns with the circuit requirements, distinguishing it from higher voltage variants within the same current family. Ensure compliance with RoHS standards if required by the end application.

Triacs Selection Notes

Select this component when an electrically isolated TRIAC is required for AC power control applications operating at 200 V. The 10 A RMS rating supports moderate power loads, while the 25 mA gate sensitivity allows for direct interfacing with standard logic drivers. Consider thermal management based on the case temperature limits provided in the derating curves for continuous operation.

Triacs Part Context

This part belongs to the Teccor Electronics line of gated triacs manufactured by Littelfuse. The product family covers current ratings from 0.8 A to 35 A and voltages from 200 V to 1000 V. The Q2010R4 specifically represents the 10 A, 200 V segment of the lineup, utilizing the isolated TO-220 form factor designated by the 'R' code in the naming convention.

Triacs Replacement Considerations

Direct substitutes within the same series include Q2010L4 and Q2010N4, which share identical electrical characteristics but differ in package isolation or lead configuration. Verify pinout compatibility and thermal resistance values when replacing non-isolated variants.