STMicroelectronics TN1610H-6I

Overview

TN1610H-6I from STMicroelectronics is a high-temperature, insulated-packaged SCR (silicon-controlled rectifier) rated for 16 A RMS on-state current, 600 V repetitive peak off-state voltage (V_DRM/V_RRM), and 150 °C maximum junction temperature. It serves as a robust AC line switching device in motor starters, solid-state relays, and inrush current limiters where thermal resilience and noise immunity are critical.

For engineers reviewing the TN1610H-6I datasheet, TN1610H-6I pinout, TN1610H-6I application, or TN1610H-6I equivalent, key selection criteria include dV/dt immunity (1000 V/µs at 150 °C), gate trigger current (10 mA max), insulated TO-220AB package (2500 V_RMS), dI/dt rating (100 A/µs), and thermal resistance (2.3 °C/W j-c).

Technical Context

This SCR operates in phase-controlled AC applications with full-wave conduction capability and requires gate-triggered turn-on with defined latching (I_L ≤ 60 mA) and holding (I_H ≤ 30 mA) currents. Its high dV/dt immunity enables reliable operation in electrically noisy environments such as industrial motor drives and power tool controllers without false triggering.

The device uses a planar passivated silicon die optimized for high-temperature stability, with dynamic on-state characteristics defined by threshold voltage (V_TO ≤ 0.82 V) and dynamic resistance (R_D ≤ 25 mΩ) at T_j = 150 °C - enabling predictable conduction loss and thermal design up to 16 A RMS under forced-air or heatsink-cooled conditions.

Key Specifications

Pinout & Package

Package: TO-220AB insulated - molded thermoset housing with internal insulation barrier providing 2500 V_RMS isolation between leads and heatsink-mounting surface; UL 1557 certified (E81734); halogen-free, lead-free plating; torque spec: 0.4–0.6 N·m.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BT139-600E and TYN616, TN1610H-6I provides superior thermal headroom (150 °C), higher noise immunity (1000 V/µs), and integrated insulation - making it optimal for compact, high-reliability AC switching where board space, EMI, and thermal management are co-constrained.

Availability

TN1610H-6I is available at Aetrix Electronics and suitable for motor control starters, solid-state relays, and inrush current limiting circuits requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for TN1610H-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, designing and manufacturing analog, MCU, power, and sensing solutions for industrial, automotive, and consumer markets.

TN1610H-6I belongs to ST's high-temperature SCR family engineered for ruggedized AC power control - specifically targeting applications demanding extended thermal operation, high noise immunity, and integrated electrical isolation without added components.

FAQ

What is the maximum allowable case temperature for continuous 16 A RMS operation?

The datasheet specifies that 16 A RMS operation is guaranteed at T_c = 116 °C with 180° conduction angle. Exceeding this case temperature requires derating per Figure 2 - e.g., at T_c = 126 °C, max I_T(AV) drops to 8 A, corresponding to ~11.3 A RMS assuming sinusoidal conduction.

Can TN1610H-6I be used in DC applications?

No - TN1610H-6I is a unidirectional SCR designed for AC line-frequency commutation. It lacks inherent turn-off capability in DC; forced commutation circuitry would be required, which is not supported by its ratings or recommended use cases in the datasheet.

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

Yes - the insulated TO-220AB has identical mechanical footprint and mounting hole spacing as standard TO-220AB. However, no additional insulating washer is needed since the package itself provides 2500 V_RMS isolation between the mounting tab and internal leads.

What gate drive circuitry is recommended for reliable triggering?

A pulse of ≥10 mA peak (≤1.3 V) with ≥20 µs width and fast rise time (<100 ns) is required. Optocouplers like MOC3021 or microcontroller-driven transistor buffers (e.g., BC817) with 33 Ω series gate resistor are validated in ST reference designs for noise-immune triggering at 150 °C junction temperature.