STMicroelectronics TN5015H-6I

Overview

TN5015H-6I from STMicroelectronics is a 600 V, 50 A RMS insulated-gate SCR in TO-220AB package, designed for high-reliability overvoltage crowbar protection and motor control circuits. It delivers 100 A/µs dI/dt turn-on capability, 500 V/µs dV/dt noise immunity at 150 °C junction temperature, and 2500 VRMS insulation-enabling robust back-to-back configurations in motorbike voltage regulators and industrial AC/DC power supplies.

For engineers reviewing the TN5015H-6I datasheet, TN5015H-6I pinout, TN5015H-6I application, or TN5015H-6I equivalent, key selection criteria include its 15 mA gate trigger current (IGT), 1.5 °C/W junction-to-case thermal resistance, 600 V repetitive peak off-state voltage, and ECOPACK®2-compliant insulated TO-220AB package with UL 1557 certification.

Technical Context

This SCR operates as a latching, unidirectional power switch triggered by gate current, with critical conduction behavior defined by latching (IL ≤ 80 mA) and holding (IH ≤ 60 mA) currents. Its static on-state voltage (VTM ≤ 1.65 V at 100 A, 25 °C) and dynamic resistance (RD ≤ 9 mΩ at 150 °C) ensure low conduction losses under high-current surge conditions.

The device's thermal design centers on junction-to-case (Rth(j-c) ≤ 1.5 °C/W) and junction-to-ambient (Rth(j-a) typ. 60 °C/W) paths, supporting continuous 50 A RMS operation at Tc = 75 °C. Its 493 A non-repetitive surge rating (tp = 8.3 ms) and 1500 A IEC 61000-4-5 compliant IPP (8/20 µs) validate suitability for lightning-induced overcurrent clamping.

Key Specifications

Pinout & Package

Package: TO-220AB insulated, featuring ceramic-based electrical isolation between the metal tab and internal die. Tab is electrically isolated (2500 VRMS), enabling direct mounting to heatsinks without insulating washers in back-to-back configurations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BT139-600E and TYN612, TN5015H-6I provides 3× higher RMS current, 5× higher dV/dt immunity, certified 2500 VRMS insulation, and IEC 61000-4-5–validated 1500 A pulse robustness-making it uniquely suited for safety-critical overvoltage clamping and high-thermal-load motor control.

Availability

TN5015H-6I is available at Aetrix Electronics and suitable for motorbike voltage regulator circuits, overvoltage crowbar protection in AC/DC power supplies, and solid-state relay designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TN5015H-6I 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, specializing in power management, analog, microcontrollers, and automotive-grade ICs.

TN5015H-6I belongs to ST's high-reliability SCR product line, engineered specifically for ruggedized industrial and transportation applications demanding high surge immunity, elevated junction temperature operation, and certified insulation integrity.

FAQ

What is the maximum allowable gate trigger voltage for TN5015H-6I?

The maximum peak reverse gate voltage (VRGM) is 5 V, and the maximum gate trigger voltage (VGT) is 1.3 V at 25 °C. Exceeding 5 V in reverse polarity risks permanent gate junction damage. Gate drive circuits must limit both forward and reverse voltage excursions within these bounds, typically using series resistors and clamping diodes.

Can TN5015H-6I be used in AC phase-control applications?

Yes, TN5015H-6I supports AC phase-control operation due to its bidirectional blocking capability (VDRM = VRRM = 600 V) and ability to latch and hold conduction through zero-crossings. However, its gate trigger characteristics require precise timing relative to the AC waveform, and it must be paired with appropriate snubbers to manage commutation dv/dt stress.

Is the TO-220AB insulated package compatible with standard TO-220 heatsinks?

Yes-the insulated TO-220AB package maintains mechanical compatibility with standard TO-220 mounting holes and footprints. The ceramic isolation layer allows direct bolting to grounded heatsinks without thermal or electrical interface pads, simplifying thermal design while preserving 2500 VRMS isolation integrity.

What is the typical turn-on time (tgt) and turn-off time (tq) for TN5015H-6I?

Typical turn-on time (tgt) is 1.9 µs under ITM = 100 A, VD = 402 V, IG = 30 mA conditions. Typical turn-off time (tq) is 85 µs at Tj = 150 °C with dVD/dt = 50 V/µs. These values reflect intrinsic device physics-not gate drive limitations-and define minimum commutation intervals in forced-commutated circuits.