STMicroelectronics STTH200W04TV1

Overview

STTH200W04TV1 from STMicroelectronics is a 400 V, 200 A ultrafast recovery rectifier diode in an ISOTOP package with 35 ns reverse recovery time, 1.85 V forward voltage at 200 A, and 250 A non-repetitive peak forward surge current. It serves as a high-current output rectifier in industrial AC-DC power supplies and welding equipment.

For engineers reviewing the STTH200W04TV1 datasheet, STTH200W04TV1 pinout, STTH200W04TV1 application, or STTH200W04TV1 equivalent, key selection criteria include peak repetitive reverse voltage (400 V), average forward current (200 A), thermal resistance (0.15 °C/W junction-to-case), soft recovery behavior, and ISOTOP mechanical compatibility with forced-air heatsinks.

Technical Context

This ultrafast diode employs platinum-doped silicon to achieve controlled minority carrier lifetime, enabling low reverse recovery charge (Q_rr = 3.7 µC) and soft recovery waveform-critical for reducing EMI and switching losses in hard-switched PFC and output stages. Its low forward voltage drop minimizes conduction loss at high DC currents.

The ISOTOP package integrates a copper baseplate with isolated terminals, supporting direct mounting to heatsinks without insulating washers while maintaining electrical isolation between anode/cathode and mounting surface. Thermal performance is optimized for continuous operation up to T_j = 175 °C.

Key Specifications

Pinout & Package

The STTH200W04TV1 is housed in an ISOTOP (Isolated TO-247) package: a 4-terminal, insulated metal-base power package with electrically isolated anode, cathode, and mounting base. The baseplate provides low-inductance thermal path and electrical isolation (V_ISO = 2500 V_RMS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MBR20040CT and VS-200E40C, STTH200W04TV1 uniquely balances soft recovery (35 ns), low Q_rr (3.7 µC), and industry-leading thermal resistance (0.15 °C/W) in an isolated package-making it optimal for space-constrained, air-cooled industrial systems requiring both electrical safety and thermal headroom.

Availability

STTH200W04TV1 is available at Aetrix Electronics and suitable for industrial welding inverters, uninterruptible power supplies (UPS), motor drive front-end rectifiers, and high-power induction heating systems requiring stable component supply and long-lifecycle support.

Supply support for STTH200W04TV1 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 microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

The STTH series comprises ultrafast recovery rectifiers engineered specifically for high-efficiency, high-reliability industrial power conversion-emphasizing soft recovery, thermal robustness, and package-level isolation for demanding 3-phase and high-current applications.

FAQ

What is the maximum allowable case temperature for continuous 200 A operation?

The STTH200W04TV1 is rated for I_F(AV) = 200 A at T_c = 100 °C. With R_th(j-c) = 0.15 °C/W and maximum T_j = 175 °C, the case temperature must not exceed 112.5 °C under full load. Operation above 100 °C requires verified thermal design with forced-air flow ≥10 CFM across the ISOTOP baseplate.

Does the ISOTOP package require thermal compound between the baseplate and heatsink?

Yes. STMicroelectronics specifies application of a uniform 0.1–0.2 mm layer of thermally conductive grease (e.g., Dow Corning TC-5022) on the entire copper baseplate surface before mounting. Omitting compound or using insufficient coverage increases effective R_th(j-c) by ≥30%, risking premature thermal runaway at rated current.

Can STTH200W04TV1 replace older STTH200L04TV1 in existing designs?

Yes-STTH200W04TV1 supersedes STTH200L04TV1 with identical pinout, package, and voltage/current ratings, but improves t_rr from 40 ns to 35 ns and reduces Q_rr from 4.2 µC to 3.7 µC. No layout or thermal changes are needed; the upgrade lowers switching loss and EMI in existing 3-phase rectifier designs.

Is this diode suitable for use in automotive-grade power modules?

No. STTH200W04TV1 is not qualified to AEC-Q101 or automotive PPAP requirements. It lacks automotive-specific screening (e.g., HTOL, UHAST, vibration testing) and is intended exclusively for industrial power applications. For automotive traction or charging systems, ST's automotive-qualified STTH200R04TV1 (with extended temperature validation) must be used instead.