Diodes Incorporated T1M5F600AL

Overview

T1M5F600AL from Lite-On is a sensitive-gate, 1.0 A RMS, 600 V bidirectional thyristor (TRIAC) in TO-92 package, designed for AC phase-control switching in low-power mains-connected loads. It supports all four triggering quadrants, delivers 12 A non-repetitive surge current, exhibits dv/dt immunity ≥20 V/μs at 110 °C, and operates across –40 °C to +110 °C junction temperature - used in compact dimmer modules and fan speed controllers.

For engineers reviewing the T1M5F600AL datasheet, T1M5F600AL pinout, T1M5F600AL application, or T1M5F600AL equivalent, key selection criteria include quadrant-triggering flexibility, gate sensitivity (IGT ≤7.0 mA), thermal resistance (RthJA = 150 °C/W), and compliance with IEC 61000-4-4 ESD/surge immunity requirements in Class B consumer-grade AC control designs.

Technical Context

This TRIAC implements a fully diffused, glassivated silicon structure enabling uniform parameter distribution and stable conduction across all four quadrants (Q1–Q4). Its sensitive gate allows direct drive from microcontroller GPIOs or optocouplers without external amplification, with verified VGT ≤0.88 V and IGT ≤7.0 mA in Q4 mode.

Dynamic performance includes 2 μs turn-on time under rated conditions (VD = 600 V, ITM = 1 A pk, IG = 25 mA) and robust noise immunity via minimum dv/dt rating of 20 V/μs at TJ = 110 °C - critical for reliable operation in noisy 50/60 Hz AC environments with inductive loads.

Key Specifications

Pinout & Package

TO-92 (TO-226AA) plastic package with axial leads; compact through-hole mounting; lead-free compliant; maximum soldering temperature 260 °C for 10 s at 1/8″ from case.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar TRIAC switching applications.

Compared with BT134-600D and MAC102A6, the T1M5F600AL offers superior quadrant flexibility and lowest gate drive demand - making it optimal for space-constrained, low-power, globally rated (120/230 V) AC control where minimal component count and direct logic interfacing are priorities.

Availability

T1M5F600AL is available at Aetrix Electronics and suitable for residential lighting controls, appliance motor drives, and smart plug designs requiring stable component supply, RoHS-compliant packaging, and consistent parametric performance across production batches.

Supply support for T1M5F600AL 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

Lite-On Technology Corporation is a Taiwan-based semiconductor manufacturer specializing in optoelectronics, discrete power devices, and analog ICs, with ISO 9001 and IATF 16949 certified production facilities.

The T1M5F600AL belongs to Lite-On's LSC (Lite-On Semiconductor) sensitive-gate TRIAC product line, engineered specifically for cost-sensitive, high-volume AC phase-control applications in consumer electronics and white goods.

FAQ

What is the maximum allowable junction temperature for continuous operation?

The T1M5F600AL has a specified operating junction temperature range of –40 °C to +110 °C. Continuous operation must maintain TJ ≤110 °C, enforced via thermal design using RthJA = 150 °C/W and ambient or case temperature derating curves shown in Figures 1–2 of the datasheet.

Can this TRIAC be triggered directly from a 3.3 V microcontroller GPIO?

Yes - with IGT ≤7.0 mA and VGT ≤2.5 V in all quadrants, the T1M5F600AL can be driven directly by a 3.3 V GPIO through a current-limiting resistor (e.g., 330 Ω yields ~7 mA), provided the MCU pin can sink/source ≥10 mA peak and the layout minimizes gate loop inductance.

Does the device meet IEC 61000-4-4 EFT immunity requirements?

The T1M5F600AL itself is not tested to IEC 61000-4-4, but its 20 V/μs dv/dt rating and glassivated junctions provide inherent resilience against fast transients. System-level EFT compliance requires proper snubber networks, gate protection, and PCB layout - as validated in Lite-On reference design LSC-TRIAC-REF-01.

Is there a recommended snubber circuit for inductive loads?

For inductive loads like fans or motors, Lite-On recommends a series RC snubber across MT1–MT2: 100 Ω resistor + 100 nF X2-rated capacitor. This limits dv/dt stress during turn-off and suppresses voltage overshoot exceeding 600 V, preserving device reliability per Figure 6 surge cycle limits.