STMicroelectronics T1610T-8FP

Overview

T1610T-8FP from STMicroelectronics is a 16 A logic-level triac in insulated TO-220FPAB package, designed for AC line switching and phase-angle control. It features 800 V repetitive peak off-state voltage (VDRM/VRRM), 10 mA gate trigger current (IGT), 2000 VRMS insulation rating, and high dV/dt (250 V/µs at 125 °C) and dI/dt (100 A/µs) immunity - enabling direct microcontroller drive in motor control and lighting applications.

For engineers reviewing the T1610T-8FP datasheet, T1610T-8FP pinout, T1610T-8FP application, or T1610T-8FP equivalent, key selection criteria include its 16 A RMS current rating, 3-quadrant triggering capability, UL-certified 2000 VRMS isolation, high-temperature operation up to 150 °C, and compatibility with low-power gate drivers in AC load switching designs.

Technical Context

The T1610T-8FP is a three-quadrant logic-level triac optimized for robust AC switching under high dv/dt and di/dt stress. Its gate sensitivity (IGT ≤ 10 mA) allows direct drive from MCU GPIOs without external amplification, while its high dV/dt immunity (≥250 V/µs at 125 °C) prevents false triggering in noisy industrial environments.

It employs a high-Tj silicon structure rated for continuous operation up to 150 °C junction temperature, supported by low thermal resistance (Rth(j–c) = 3.3 °C/W) and high surge capability (ITSM = 126 A at 60 Hz). The insulated TO-220FPAB package provides reinforced 2000 VRMS barrier isolation between main terminals and heatsink mounting surface.

Key Specifications

Pinout & Package

Package: TO-220FPAB - insulated through-hole package with electrically isolated metal tab (mounting surface), UL94 V0 epoxy, lead-free finish, and 2000 VRMS isolation rating between main terminals and heatsink interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTA16-800BWRG and MAC16A8G, the T1610T-8FP uniquely delivers UL-certified 2000 VRMS isolation, logic-level gate drive, and 3-quadrant operation in a single package - eliminating external isolation components and gate buffers required by alternatives.

Availability

T1610T-8FP is available at Aetrix Electronics and suitable for motor control circuits, small home appliances, and lighting requiring stable component supply, long-term lifecycle support, and certified safety compliance.

Supply support for T1610T-8FP 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.

The T1610T-8FP belongs to ST's high-reliability Triac family targeting AC power control in safety-critical, thermally demanding applications - emphasizing insulation integrity, high-temperature stability, and noise-immune triggering.

FAQ

What is the maximum junction temperature for continuous operation?

The T1610T-8FP is rated for continuous operation up to 150 °C junction temperature, validated per absolute maximum ratings in Table 2. This enables use in sealed enclosures or high-ambient environments where thermal management is constrained, provided case temperature remains ≤87 °C at 16 A RMS load.

Does this triac require a heatsink for 16 A operation?

Yes - at 16 A RMS, the device dissipates ~2.5 W (based on VT ≈ 1.55 V and Rth(j–c) = 3.3 °C/W). A heatsink maintaining case temperature ≤87 °C is mandatory; typical designs use an aluminum finned heatsink ≥15 cm² surface area with thermal interface material.

Can T1610T-8FP be used in zero-crossing switched applications?

No - it is not optimized for zero-crossing operation. Its 3-quadrant architecture and high dV/dt immunity make it ideal for phase-angle control, but it lacks integrated zero-crossing detection circuitry. External zero-crossing sensing (e.g., via optocoupler) is required if synchronous switching is needed.

Is the TO-220FPAB package compatible with standard TO-220 heatsinks?

Yes - the TO-220FPAB footprint matches standard TO-220 mounting hole spacing (L6 = 15.9–16.4 mm), but the insulated tab requires no electrical isolation hardware. Mechanical fit is identical; however, thermal interface must accommodate the 0.45–0.70 mm epoxy layer thickness beneath the tab.