STMicroelectronics STTH60AC06CP

Overview

STTH60AC06CP from STMicroelectronics is a 600 V, 2 × 30 A ultrafast dual common-cathode silicon rectifier diode in insulated TO-3PF package, designed for high-efficiency boost PFC stages in air conditioning inverters and as freewheeling diodes in industrial SMPS. It delivers 40 ns typical reverse recovery time, 1.4 V typical forward voltage at 150 °C/30 A, and 2500 VDC isolation rating.

For engineers reviewing the STTH60AC06CP datasheet, STTH60AC06CP pinout, STTH60AC06CP application, or STTH60AC06CP equivalent, key selection criteria include reverse recovery softness (S-factor >1.0), low thermal resistance (R_th(j-c) = 2.2 °C/W total), conduction loss modeling (P = 1.1×I_F(AV) + 0.01×I_F(RMS)²), and TO-3PF mounting torque (0.8–1.0 N·m).

Technical Context

This dual-diode device integrates two independent 600 V/30 A ultrafast junctions sharing a common cathode terminal, enabling interleaved PFC operation without external parallel coupling. Its Turbo 2 technology minimizes stored charge (Q_RR ≈ 1200 nC at dI_F/dt = 400 A/µs) and reverse recovery current (I_RM ≤ 9 A).

The TO-3PF package provides 2500 VDC insulation between case and terminals, with direct thermal path to heatsink via metal baseplate and low R_th(c) coupling (1.6 °C/W). Dynamic performance remains stable across T_j = 25–150 °C, supporting continuous conduction mode operation up to 175 °C junction temperature.

Key Specifications

Pinout & Package

STTH60AC06CP uses the insulated TO-3PF package: metal baseplate electrically isolated from internal terminals, rated for 2500 VDC working voltage, with M3.5 mounting screw and recommended torque of 0.8–1.0 N·m. Dimensions: L4 = 43.2–44.4 mm, G = 10.3–11.5 mm, H = 15.3–15.7 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultrafast high-voltage dual-diode applications.

Compared with STTH60AC06CP, STTH60AC06CW trades isolation for lower thermal resistance, while MUR6060CT offers higher current rating but sacrifices speed and voltage drop-making STTH60AC06CP optimal for thermally constrained, safety-critical HVAC PFC.

Availability

STTH60AC06CP is available at Aetrix Electronics and suitable for air conditioning inverters, industrial SMPS, and renewable energy converters requiring stable component supply, long-lifecycle assurance, and certified isolation compliance.

Supply support for STTH60AC06CP 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

STTH60AC06CP belongs to ST's Turbo 2 ultrafast diode product line, engineered specifically for high-frequency, high-reliability PFC and freewheeling applications in energy-efficient HVAC and industrial power systems.

FAQ

What is the maximum surge current rating for STTH60AC06CP?

The device supports I_FSM = 280 A non-repetitive surge current (10 ms sinusoidal half-cycle) per diode, verified per IEC 61000-4-5 surge immunity standards. This rating applies independently to each anode under simultaneous conduction, enabling robust protection against line transients in AC-input PFC stages.

Can STTH60AC06CP be mounted directly to a grounded heatsink?

Yes-the TO-3PF package provides 2500 VDC isolation between the metal baseplate and all internal terminals (A1, A2, K), allowing direct mechanical attachment to a chassis-grounded heatsink without insulating hardware or thermal pads, simplifying thermal design in HVAC inverters.

How does the soft recovery characteristic affect EMI in PFC designs?

With S-factor >1.0 across dI_F/dt = 100–400 A/µs, STTH60AC06CP exhibits controlled reverse recovery current decay, reducing high-frequency spectral content above 30 MHz. This lowers conducted EMI by 8–10 dBµV in 75 kHz interleaved PFC, easing CISPR-11 Class B compliance.

What is the recommended gate drive layout for minimizing parasitic oscillation with STTH60AC06CP?

No gate drive is required-STTH60AC06CP is a passive diode with no control terminal. Layout best practices focus on minimizing loop inductance between A1/K and A2/K paths using symmetrical copper pours and Kelvin connections to the common cathode, critical for balanced current sharing in interleaved PFC.