STMicroelectronics STTH200F04TV1

Overview

STTH200F04TV1 from STMicroelectronics is an ultrafast high-voltage dual diode rectifier in ISOTOP package, rated for 400 V repetitive peak reverse voltage, 100 A average forward current per diode (200 A total RMS), and 70 ns maximum reverse recovery time at 125 °C. It delivers low conduction loss (VF = 0.95 V typ. at 100 A, 125 °C) and low thermal resistance (Rth(j-c) = 0.60 °C/W per diode), optimized for high-efficiency switching welding equipment.

For engineers reviewing the STTH200F04TV1 datasheet, STTH200F04TV1 pinout, STTH200F04TV1 application, or STTH200F04TV1 equivalent, key selection criteria include reverse recovery time under high dIF/dt, junction-to-case thermal impedance, insulated package rating (2500 VRMS), and dual-diode conduction capability in high-current DC-link rectification.

Technical Context

This dual common-cathode ultrafast rectifier integrates two independent 400 V/100 A diodes in a single ISOTOP housing with electrically isolated baseplate. Its soft recovery (softness factor = 0.3) and low QRR (750 nC) minimize voltage overshoot and EMI during hard-switching transitions in inverter-fed welding power supplies.

The device operates up to 150 °C junction temperature, with thermal coupling between diodes quantified by Rth(c) = 0.1 °C/W, enabling accurate thermal modeling when both diodes conduct simultaneously - critical for paralleled output stage designs requiring balanced thermal stress.

Key Specifications

Pinout & Package

STTH200F04TV1 uses the ISOTOP (Insulated Super Top) package: a 4-terminal, metal-base, electrically insulated power module with integrated mounting screws. The baseplate provides thermal path and electrical isolation (2500 VRMS). Dimensions: 38.0 × 25.3 × 15.0 mm (L × W × H), weight 27 g (no screws).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MBR20040CT and VS-200E40C, STTH200F04TV1 offers superior thermal performance (0.60 vs. ≥0.85 °C/W), reinforced 2500 VRMS isolation, and faster recovery (70 ns vs. ≥85 ns), making it optimal for space-constrained, high-reliability welding and UPS systems demanding minimal snubber overhead.

Availability

STTH200F04TV1 is available at Aetrix Electronics and suitable for industrial welding inverters, online UPS rectifier stages, and solar microinverter DC-link applications requiring stable component supply, long-lifecycle availability, and certified ECOPACK®2 compliance.

Supply support for STTH200F04TV1 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 sensor solutions for automotive, industrial, and consumer markets.

STTH200F04TV1 belongs to ST's ultrafast high-voltage rectifier product line, engineered specifically for high-frequency, high-current industrial power conversion where low recovery loss, thermal robustness, and reinforced insulation are critical.

FAQ

What is the maximum allowable mounting torque for STTH200F04TV1?

The recommended torque value is 1.3 N·m, with a maximum allowable torque of 1.5 N·m. STMicroelectronics strongly advises using only the supplied M4 screws and washers; substitution invalidates warranty and risks mechanical damage or compromised thermal contact due to uneven clamping force across the ISOTOP baseplate.

Does STTH200F04TV1 support simultaneous conduction of both diodes?

Yes - STTH200F04TV1 is configured as a dual common-cathode rectifier (A1–K1 and A2–K2), with K1 and K2 internally bonded. Both diodes can conduct simultaneously, and thermal interaction is modeled using Rth(j-c) = 0.60 °C/W per diode plus Rth(c) = 0.1 °C/W coupling term for accurate junction temperature estimation under shared load.

How does the 2500 VRMS isolation rating impact PCB layout?

The 2500 VRMS isolation allows direct mounting to a grounded heatsink without insulating pads or bushings, simplifying thermal design and eliminating creepage/clearance constraints on the PCB. Layout must still maintain ≥8 mm creepage distance from A1/A2 terminals to any adjacent low-voltage traces per IEC 61000-4-5 requirements.

Can STTH200F04TV1 replace standard fast recovery diodes in existing 400 V designs?

Yes, provided the original design accommodates ISOTOP's 38 mm × 25.3 mm footprint and uses M4 mounting. Its 70 ns trr (vs. 150–300 ns for standard FRDs) reduces switching loss and EMI, but may require minor snubber tuning due to faster dV/dt. No changes to gate drive or control timing are needed.