STMicroelectronics STTH200L04TV1

Overview

STTH200L04TV1 from STMicroelectronics is an ultrafast high-voltage rectifier diode in ISOTOP package, rated for 400 V repetitive peak reverse voltage (VRRM), 120 A average forward current per diode at Tc = 73 °C, and 50 ns maximum reverse recovery time (trr). It features low thermal resistance (Rth(j-c) = 0.50 °C/W per diode), low forward voltage drop (VF = 0.83 V typ. at 150 °C, 100 A), and is designed for output rectification in industrial switching power supplies and welding equipment.

For engineers reviewing the STTH200L04TV1 datasheet, STTH200L04TV1 pinout, STTH200L04TV1 application, or STTH200L04TV1 equivalent, key selection criteria include its dual-diode ISOTOP configuration, soft reverse recovery (Sfactor = 0.4 typ.), conduction loss equation (P = 0.8 × IF(AV) + 0.002 × IF²(RMS)), and insulation rating of 2500 VRMS - critical for high-reliability industrial power conversion designs.

Technical Context

This device integrates two independent ultrafast silicon rectifiers in a single insulated ISOTOP package, enabling parallel or interleaved operation in high-current DC-output stages. Each diode exhibits soft reverse recovery (Sfactor = 0.4 at 125 °C, dIF/dt = 100 A/µs) and low stored charge (Qrr < 3500 nC at 125 °C), minimizing EMI and voltage overshoot during turn-off.

Thermal design leverages low junction-to-case resistance (0.50 °C/W per diode) and coupling resistance (0.10 °C/W), allowing accurate junction temperature estimation when both diodes operate simultaneously: ΔTj(diode 1) = P(diode 1) × Rth(j-c) + P(diode 2) × Rth(c). The 2500 VRMS isolation supports reinforced insulation in Class I safety-compliant systems.

Key Specifications

Pinout & Package

The STTH200L04TV1 uses the ISOTOP package - a 4-terminal, insulated, stud-mount power package with integrated ceramic insulation and screw terminals for direct heatsink mounting. Dimensions comply with ST's ISOTOP mechanical specification (e.g., D = 37.8–38.2 mm, E = 25.15–25.50 mm, A1 = 8.9–9.1 mm).

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH200L04TV1, the IXYS part operates at much lower voltage and lacks isolation, while the Vishay part matches the package but sacrifices ultrafast performance and soft recovery - making STTH200L04TV1 uniquely suited for 400 V, high-frequency, isolated industrial rectification.

Availability

STTH200L04TV1 is available at Aetrix Electronics and suitable for industrial switching power supplies, resistance welding equipment, and uninterruptible power supplies requiring stable component supply, long-lifecycle support, and traceable sourcing for production programs.

Supply support for STTH200L04TV1 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, specializing in power management, analog, microcontrollers, and automotive ICs, with manufacturing and R&D across Europe, Asia, and the Americas.

The STTH series targets high-efficiency, high-reliability industrial power conversion - specifically engineered for ultrafast, soft-recovery rectification in demanding 400 V-class SMPS, welders, and UPS systems where thermal robustness and isolation are mandatory.

FAQ

What is the maximum junction temperature and how is it thermally managed?

The STTH200L04TV1 has a maximum operating junction temperature of 150 °C. Thermal management relies on its low junction-to-case resistance (0.50 °C/W per diode) and coupling resistance (0.10 °C/W), enabling accurate ΔTj calculation when both diodes conduct. Mounting to a heatsink via the insulated ISOTOP base - with proper torque and thermal interface material - is essential to maintain Tj ≤ 150 °C under full load.

Can STTH200L04TV1 be used in parallel configurations?

Yes - the dual-diode ISOTOP structure supports parallel operation of A1/K1 and A2/K2 within the same package, or external paralleling with matched units. For intra-package parallel use, derating is required: total IF(AV) remains 120 A per diode, but thermal coupling must be modeled using ΔTj(diode 1) = P₁ × 0.50 + P₂ × 0.10 to avoid localized overheating.

Does STTH200L04TV1 meet RoHS and environmental compliance standards?

Yes - STTH200L04TV1 is offered in ECOPACK®-compliant versions meeting RoHS Directive 2011/65/EU and REACH regulations. The epoxy molding compound complies with UL94 V0 flammability rating, and packaging adheres to ST's ECOPACK® grade definitions for halogen-free and lead-free construction, documented on www.st.com/ecopack.

How does the softness factor impact circuit reliability?

The softness factor (Sfactor = 0.4 typ.) quantifies the gradual decay of reverse recovery current (IRM), reducing di/dt-induced voltage spikes and electromagnetic interference. In practice, this eliminates the need for RC snubbers in most 400 V, >50 kHz rectifier designs and prevents MOSFET/IGBT shoot-through caused by diode-induced voltage transients during hard-switching transitions.