STMicroelectronics TN5015H-6T

Overview

TN5015H-6T from STMicroelectronics is a high-temperature, 50 A, 600 V non-isolated SCR in TO-220AB package, designed for robust AC line control in motorbike voltage regulators, inrush limiters, and solid-state relays. It features 15 mA gate trigger current, 100 A/µs dI/dt rating, and 500 V/µs dV/dt immunity at 150 °C junction temperature.

For engineers reviewing the TN5015H-6T datasheet, TN5015H-6T pinout, TN5015H-6T application, or TN5015H-6T equivalent, key selection criteria include RMS on-state current (50 A @ Tc = 120 °C), peak off-state voltage (600 V), thermal resistance (0.6 °C/W j-c), gate sensitivity (IGT ≤ 15 mA), and high-temperature noise immunity (dV/dt ≥ 500 V/µs @ Tj = 150 °C).

Technical Context

This SCR operates with a latching current (IL) ≤ 80 mA and holding current (IH) ≤ 60 mA at 25 °C, enabling reliable turn-on and sustained conduction in phase-controlled AC circuits. Its low dynamic resistance (RD ≤ 9 mΩ @ Tj = 150 °C) and on-state voltage (VTM ≤ 1.65 V @ 100 A) minimize power loss during conduction.

The device supports fast switching with typical turn-on time (tgt) of 1.9 µs and turn-off time (tq) of 85 µs under defined test conditions, while maintaining high surge capability (ITSM = 493 A for 8.3 ms). Its ECOPACK®2-compliant, lead-free, halogen-free TO-220AB package ensures environmental compliance without compromising thermal performance.

Key Specifications

Pinout & Package

Packaged in a non-isolated TO-220AB case with metal tab (anode-connected), this SCR uses a 3-terminal configuration optimized for high-current, high-temperature mounting directly to heatsinks.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SCR-based AC control applications.

Compared with BT139-600E and TYN612, the TN5015H-6T delivers 3× higher RMS current, 5× greater dV/dt immunity, and lower on-state loss-enabling smaller heatsinks, fewer external components, and operation in thermally demanding environments like motorbike regulators.

Availability

TN5015H-6T is available at Aetrix Electronics and suitable for motorbike voltage regulator circuits, inrush current limiting circuits, and solid-state relay designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TN5015H-6T 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, power, MCU, and sensor solutions for automotive, industrial, and consumer markets.

The TN SCR series targets high-reliability, high-temperature AC power control applications-including automotive alternator regulation, industrial motor starters, and crowbar protection-where thermal resilience and noise immunity are critical.

FAQ

Is TN5015H-6T electrically isolated in its TO-220AB package?

No. The TO-220AB package is non-isolated: the metal tab is internally connected to the anode terminal. Electrical isolation from the heatsink must be achieved using insulating washers or pads, and creepage/clearance distances must comply with end-equipment safety standards.

What is the minimum gate trigger voltage (VGT) specification for TN5015H-6T?

The maximum gate trigger voltage is specified as VGT ≤ 1.3 V at Tj = 25 °C. No minimum VGT is guaranteed; actual turn-on occurs reliably above ~0.7 V, but design must ensure IGT ≥ 15 mA is delivered regardless of VGT variation across temperature and unit spread.

Can TN5015H-6T replace a TRIAC in AC phase-control applications?

No. As a unidirectional SCR, it conducts only during one half-cycle of AC. For full-wave phase control (e.g., light dimmers), a TRIAC or back-to-back SCRs are required. TN5015H-6T is appropriate for half-wave or DC-fed applications like motorbike regulators and crowbar circuits.

Does TN5015H-6T require a heat sink in all operating conditions?

Yes. With Rth(j–c) = 0.6 °C/W and Pdiss ≈ 50 W at full 50 A conduction, even brief operation without heatsinking exceeds 150 °C junction limit. A properly sized heatsink (e.g., 1.5 °C/W ambient-to-air) is mandatory for continuous RMS current above ~5 A.