Diodes Incorporated T16M10T800UB

Overview

T16M10T800UB from Diodes Incorporated is a glass-passivated, lead-free, halogen-free 16A RMS, 800V bidirectional thyristor (TRIAC) designed for phase-controlled AC power switching in mains-frequency applications. It features 10mA gate trigger current (IGT1), 15mA holding current (IH1), and operates up to +125°C junction temperature. Used in light dimmers, fan speed controls, and food processors where quadrant-1/2/3 triggering and voltage ruggedness are required.

For engineers reviewing the T16M10T800UB datasheet, T16M10T800UB pinout, T16M10T800UB application, or T16M10T800UB equivalent, key selection criteria include gate trigger sensitivity (10mA max), dV/dt immunity (40 V/µs min at 125°C), thermal resistance (RθJC = 1.4°C/W), and TO220AB package compatibility with standard heatsinks.

Technical Context

This TRIAC supports three-quadrant triggering only (QI, QII, QIII), eliminating false turn-on from quadrant-IV gate noise. Its glass passivation ensures stable VDRM/VRRM (800V) under humid or high-stress conditions, and its 130A non-repetitive surge rating enables robust motor-start handling.

Thermal design is enabled by low RθJC (1.4°C/W) and RθJL (1.1°C/W), allowing direct mounting to aluminum heatsinks per JESD-51. The device's dI/dts rating of 100 A/µs and (dI/dt)c of 8.5 A/ms support fast commutation in compact snubberless designs.

Key Specifications

Pinout & Package

Package: TO220AB (Type WX), molded plastic, matte tin-plated leads, UL 94V-0 rated, 2.08g weight.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar TRIAC-based AC power switching applications.

Compared with BTB16-800BR and Q6016LH4, T16M10T800UB offers superior gate sensitivity (10mA vs. ≥35mA) and higher dV/dt immunity (40 V/µs), enabling simpler, more robust control in space-constrained 240VAC consumer electronics.

Availability

T16M10T800UB is available at Aetrix Electronics and suitable for light dimming systems, fan speed controllers, food processor motor drives, and coffee machine heating control requiring stable component supply across industrial and consumer production programs.

Supply support for T16M10T800UB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

T16M10T800UB belongs to Diodes' high-reliability TRIAC family targeting cost-sensitive, high-volume AC power control in white goods and portable appliances-designed for manufacturability, thermal robustness, and regulatory compliance (RoHS 3, AEC-Q200 readiness).

FAQ

Is T16M10T800UB compatible with zero-crossing trigger circuits?

No-T16M10T800UB is optimized for phase-angle control and does not guarantee zero-crossing turn-on behavior. Its three-quadrant triggering and 10mA IGT1 make it ideal for leading-edge dimming, but zero-crossing operation requires external circuitry or a dedicated zero-crossing TRIAC like the Z0103MN series.

What is the maximum recommended heatsink thermal resistance for continuous 16A operation?

At TA = +40°C and TJ(max) = +125°C, the maximum allowable RθSA (sink-to-ambient) is 1.7°C/W when using the specified 100mm × 42mm × 27mm finned heatsink. This accounts for RθJC = 1.4°C/W and interface resistance; exceeding this risks thermal runaway under sustained load.

Can T16M10T800UB replace T16M35T800UB in existing designs?

Yes, with design verification: both share identical VDRM, IT(RMS), and package, but T16M10T800UB has lower IGT (10mA vs. 35mA) and IH (15mA vs. 50mA). It reduces gate drive burden but may increase risk of unintended turn-off if load current dips near 15mA-verify minimum load current in target application.

Does the TO220AB tab connect to MT2 or is it electrically isolated?

The metal tab of the TO220AB package is internally connected to MT2, not isolated. This must be accounted for in PCB layout and heatsink mounting-insulating hardware (e.g., mica washers, silicone pads) is required if MT2 is not at chassis ground potential.