Taiwan Semiconductor Corporation MUR320S V7G

Overview

MUR320S V7G from Taiwan Semiconductor is a 3A, 200V ultra-fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 25ns reverse recovery time, 0.875V forward voltage at 3A/25°C, and 75A peak surge current-designed for high-frequency freewheeling and switching-mode power supplies in telecom and computing infrastructure.

For engineers reviewing the MUR320S V7G datasheet, MUR320S V7G pinout, MUR320S V7G application, or MUR320S V7G equivalent, key selection criteria include ultra-fast trr performance, thermal robustness to 175°C junction temperature, low VF at elevated temperatures, and RoHS/halogen-free compliance for industrial-grade power conversion designs.

Technical Context

The MUR320S V7G employs a glass-passivated silicon PN junction optimized for minimal minority-carrier storage, enabling 25ns reverse recovery under IF = 0.5A / IR = 1.0A test conditions. Its single-die configuration and DO-214AB thermal design deliver 11°C/W junction-to-lead resistance, supporting sustained 3A DC operation with derating above 75°C ambient.

Rated for repetitive peak reverse voltage of 200V and RMS reverse voltage of 140V, the device operates across –55°C to +175°C junction range, with leakage current limited to 5μA at 25°C and 150μA at 150°C-ensuring stable blocking behavior in high-temperature SMPS output stages.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈0.210g.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-fast rectifier applications.

Compared with STTH3L06S and ES3D-E3/57T, the MUR320S V7G delivers the fastest recovery (25ns) and lowest VF (0.875V) in its voltage class while maintaining full RoHS/halogen-free compliance-making it optimal for high-frequency, thermally sensitive, and environmentally regulated power systems.

Availability

MUR320S V7G is available at Aetrix Electronics and suitable for server power supplies, telecom DC-DC converters, and industrial PLC power input stages requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for MUR320S V7G 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power management and industrial markets since 1979.

The MUR320S V7G belongs to TSC's ultra-fast recovery rectifier product line, engineered specifically for high-efficiency, high-frequency switching power supplies where low trr, low VF, and thermal resilience are critical system requirements.

FAQ

What is the maximum junction temperature rating for the MUR320S V7G?

The MUR320S V7G has a maximum junction temperature (TJ MAX) of +175°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows reliable operation in high-ambient environments such as enclosed power supplies or industrial control units. Derating curves confirm usable 3A current capability up to 75°C case temperature, with linear reduction beyond that point. The MUR320S V7G must be mounted on adequate copper area to maintain this limit under full load.

Does the MUR320S V7G have a halogen-free construction?

Yes, the MUR320S V7G is halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound contains no bromine, chlorine, or other halogen elements, meeting environmental compliance requirements for consumer, telecom, and industrial equipment. This specification applies to the entire MUR3xxS family, including the MUR320S V7G.

What is the reverse recovery time (trr) of the MUR320S V7G and under what test conditions?

The MUR320S V7G has a typical reverse recovery time (trr) of 25 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the Electrical Specifications table in the official datasheet. This value is specific to the MUR305S–MUR320S subgroup and distinguishes the MUR320S V7G from higher-voltage variants (e.g., MUR340S at 50 ns). The fast trr enables efficient operation in converters switching above 500 kHz.

Is the MUR320S V7G pin-compatible with other DO-214AB rectifiers?

Yes-the MUR320S V7G uses the standard DO-214AB (SMC) package with anode and cathode terminals arranged per JEDEC outline, making it mechanically and solder-pad compatible with other DO-214AB rectifiers like ES3D or STTH3L06S. However, electrical characteristics-including VF, trr, and leakage-differ between parts, so functional substitution requires validation. The MUR320S V7G's cathode band marking follows industry convention.

What is the forward voltage drop of the MUR320S V7G at elevated temperature?

At 3A and TJ = 150°C, the MUR320S V7G exhibits a typical forward voltage (VF) of 0.710 V, as specified in the Electrical Specifications table. This represents a 19% reduction from its 25°C value (0.875 V), confirming favorable temperature coefficient for thermal stability in high-power-density designs. The MUR320S V7G maintains this low VF across its full operating junction range, improving efficiency under thermal stress.