STMicroelectronics STTH20002TV1

Overview

STTH20002TV1 from STMicroelectronics is a dual ultrafast high-voltage rectifier diode in ISOTOP package, rated for 200 V repetitive peak reverse voltage, 120 A average forward current (Tc = 80°C), and 41 ns typical reverse recovery time. It delivers low conduction loss (VF = 0.75 V typ. at 100 A, 150°C) and high surge capability (1000 A, 10 ms), targeting secondary-side rectification in industrial welding power supplies.

For engineers reviewing the STTH20002TV1 datasheet, STTH20002TV1 pinout, STTH20002TV1 application, or STTH20002TV1 equivalent, key selection criteria include thermal resistance (Rth(j–c) = 0.52 °C/W per diode), insulated construction (2500 VRMS isolation), and dual-diode coupling behavior under simultaneous conduction.

Technical Context

This dual rectifier integrates two independent ultrafast switching diodes in a single insulated metal-package (ISOTOP), enabling compact, thermally efficient secondary rectification in high-power DC–DC stages. Its 41 ns trr and low VF support high-frequency operation up to ~100 kHz while minimizing switching and conduction losses.

The device uses planar epitaxial technology with soft recovery characteristics, evidenced by 11.5–15 A peak reverse recovery current (IRM) at 100 A IF and 160 V VR. Thermal coupling between diodes (Rth(c) = 0.1 °C/W) requires derating when both are active simultaneously.

Key Specifications

Pinout & Package

Package: ISOTOP - Insulated metal package with copper baseplate, screw-mountable, 27 g (without screws). Features UL94 V0 epoxy, 2500 VRMS isolation, and 55 pF junction capacitance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MBR20020CT and VS-200E20, STTH20002TV1 uniquely combines 2500 VRMS isolation, 150°C Tj rating, and 41 ns trr in a single ISOTOP package-making it optimal for safety-compliant, high-temperature industrial rectification where reliability under surge and thermal stress is critical.

Availability

STTH20002TV1 is available at Aetrix Electronics and suitable for industrial welding power supplies, high-power UPS rectifier stages, laser cutting system PSUs, and induction heating inverters requiring stable component supply and long-lifecycle support.

Supply support for STTH20002TV1 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, designing and manufacturing analog, power, microcontroller, and sensor solutions for industrial, automotive, and consumer markets.

STTH20002TV1 belongs to ST's TURBO 2 ULTRAFAST rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in demanding industrial power conversion systems.

FAQ

What is the maximum junction temperature and how does it affect derating?

The STTH20002TV1 has a maximum junction temperature (Tj) of 150°C. Derating is required above Tc = 80°C: IF(AV) drops linearly from 120 A at 80°C to 100 A at 95°C. Thermal design must account for Rth(j–c) = 0.52 °C/W per diode and coupling resistance (0.1 °C/W) when both diodes conduct simultaneously.

Is the ISOTOP package electrically insulated, and what is its isolation rating?

Yes-the ISOTOP package provides reinforced electrical insulation between the copper baseplate and internal terminals. It is rated for 2500 VRMS isolation, verified per IEC 60747-5-2, enabling safe direct mounting to grounded heatsinks in Class I equipment without additional insulating hardware.

How does dual-diode thermal coupling impact power dissipation calculations?

When both diodes operate concurrently, junction temperature rise is calculated as ∆Tj(diode 1) = P₁ × 0.52 + P₂ × 0.1, where P₁ and P₂ are individual diode power dissipations. This coupling effect increases effective thermal resistance and must be included in worst-case thermal modeling for continuous dual-diode operation.

Can STTH20002TV1 replace standard fast recovery diodes in existing 200 V rectifier designs?

Yes-STTH20002TV1 is a direct upgrade for 200 V fast recovery diodes (e.g., BYW98, STTH1602) in high-frequency or high-surge applications. Its 41 ns trr, lower VF, and 1000 A IFSM improve efficiency and reliability, but layout must accommodate ISOTOP's larger footprint and screw-mounting requirements.