STMicroelectronics STRVS142X02F

Overview

STRVS142X02F from STMicroelectronics is a unidirectional repetitive voltage suppressor (TVS) diode designed for clamping transient overvoltages in power semiconductor circuits. It features a 142 V clamping voltage at 2 A peak pulse current, 102–126 V breakdown voltage range at 25 °C, and operates up to 175 °C junction temperature in DO-201 package - optimized for MOSFET/IGBT protection in flyback auxiliary supplies.

For engineers reviewing the STRVS142X02F datasheet, STRVS142X02F pinout, STRVS142X02F application, or STRVS142X02F equivalent, key selection criteria include clamping voltage stability across temperature, low leakage (1 µA @ VRM), thermal resistance (Rth(j-a) = 100 °C/W), and compliance with IEC 61000-4-2 level 4 (±15 kV air discharge) and MIL-STD-883 HBM (25 kV).

Technical Context

This device operates as a unidirectional avalanche diode with defined clamping behavior under repetitive surge conditions. Its dynamic resistance (Rd = 1.0 Ω) and temperature coefficient of breakdown voltage (αT = 10.7 × 10⁻⁴ /°C) enable predictable voltage clamping across –55 °C to +175 °C junction range.

Designed for high-surge-frequency environments, it sustains repeated transients without thermal runaway, leveraging DO-201's 23 °C/W junction-to-leads thermal resistance and 100 °C/W junction-to-ambient rating on standard PCB layout. It meets IEC 61000-4-5 level 4 surge immunity and MIL-STD-750 solderability requirements.

Key Specifications

Pinout & Package

STRVS142X02F is housed in a DO-201 axial lead package with cathode indicated by a band. The device has two terminals: anode and cathode - configured for unidirectional clamping from cathode to anode.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar TVS diode applications.

Compared with SMCJ140A and P6KE150A, STRVS142X02F delivers tighter clamping (142 V vs. 140–150 V), superior thermal performance in DO-201 (100 °C/W vs. 105–150 °C/W), and verified repetitive-mode reliability - making it optimal for high-frequency, thermally constrained protection.

Availability

STRVS142X02F is available at Aetrix Electronics and suitable for industrial flyback auxiliary supplies, MOSFET/IGBT protection circuits, and DC bus surge suppression requiring stable component supply and long-term manufacturability.

Supply support for STRVS142X02F 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 protection devices for industrial, automotive, and consumer markets.

The STRVSX series was developed specifically for repetitive overvoltage protection in power semiconductor gate and drain circuits - addressing thermal accumulation challenges absent in standard TVS diodes.

FAQ

What is the maximum peak pulse current STRVS142X02F can handle?

STRVS142X02F is rated for 2 A peak pulse current (IPP) per IEC 61000-4-5 testing conditions. Its clamping voltage is specified at this current (142 V), and its thermal design supports repetitive application of such pulses without junction overheating when mounted on recommended PCB copper area.

Does STRVS142X02F support bidirectional transient suppression?

No - STRVS142X02F is a unidirectional TVS diode, with polarity marked by a cathode band. It clamps only positive transients applied to the cathode relative to the anode. For bidirectional protection, a pair of devices or a dedicated bidirectional TVS (e.g., STRVS142X02D) would be required.

How does the 10.7 × 10⁻⁴ /°C voltage temperature coefficient affect circuit design?

This αT value means breakdown voltage increases ~0.107% per °C rise above 25 °C. At 125 °C, VBR rises ~10.7 V above its 25 °C value (e.g., 114 V → 124.7 V), which must be accounted for when setting standoff margin - especially in high-ambient applications like enclosed power supplies.

Can STRVS142X02F replace P6KE150A in existing designs?

Direct replacement requires verification of clamping margin and thermal layout. STRVS142X02F clamps at 142 V (vs. 150 V for P6KE150A) and offers better thermal resistance (100 vs. 105 °C/W), but uses DO-201 instead of DO-15 - requiring footprint adaptation and revalidation of surge repetition endurance.