Taiwan Semiconductor Corporation MUR460S

Overview

MUR460S from Taiwan Semiconductor is an ultra-fast recovery surface-mount rectifier diode rated for 4 A average forward current and 600 V repetitive peak reverse voltage, with 50 ns reverse recovery time and 1.25 V max forward voltage at 4 A and 25°C. It is used in high-frequency switching mode power supplies, freewheeling paths, and telecom DC-DC converters where fast switching and low conduction loss are critical.

For engineers reviewing the MUR460S datasheet, MUR460S pinout, MUR460S application, or MUR460S equivalent, key selection criteria include its DO-214AB (SMC) package, 600 V V_RRM, 50 ns trr, thermal resistance R_θJC = 8.5 °C/W, and RoHS/halogen-free compliance for industrial and telecom power designs.

Technical Context

The MUR460S employs a glass-passivated silicon junction optimized for ultra-fast recovery (trr ≤ 50 ns), enabling efficient operation in high-frequency SMPS topologies above 100 kHz. Its single-die configuration and DO-214AB package support automated placement and reflow soldering per J-STD-002.

Thermally, it features a maximum junction temperature of 175°C and R_θJA = 45 °C/W (on FR-4, 1 in² copper pad), with reverse leakage limited to 10 μA at 25°C and 250 μA at 150°C under rated 600 V reverse bias.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC) - surface-mount, molded plastic case with matte tin-plated leads, UL 94V-0 rated, polarity indicated by cathode band.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH4R06D and ES4D-E3/57T, the MUR460S offers identical DO-214AB SMT compatibility and 50 ns recovery, but with lower reverse leakage (10 μA) and tighter VF consistency-making it optimal for thermally constrained telecom and industrial SMPS where reliability and efficiency margins matter.

Availability

MUR460S is available at Aetrix Electronics and suitable for server power supplies, telecom DC-DC converters, and industrial motor drive snubbers requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.

Supply support for MUR460S 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, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors.

The MUR460S belongs to TSC's MUR4xS ultra-fast rectifier family, engineered specifically for high-frequency switching power conversion in computing, communications, and industrial equipment where speed, thermal robustness, and SMT manufacturability are essential.

FAQ

What is the maximum junction temperature rating for the MUR460S?

The MUR460S has a maximum junction temperature (T_J) rating of +175°C, allowing reliable operation in high-ambient environments such as enclosed server power supplies or industrial motor drives. This rating is validated under specified thermal conditions including R_θJC = 8.5 °C/W and proper heatsinking via the cathode tab. The MUR460S maintains parameter stability up to this limit, with reverse leakage remaining within spec at 250 μA at 150°C.

Does the MUR460S have a defined pinout or terminal assignment?

Yes-the MUR460S is a two-terminal device in DO-214AB (SMC) package: the banded end is the cathode, and the opposite end is the anode. The cathode connects to the metal tab, which serves both as the electrical terminal and primary thermal path. No internal pin numbering applies, but correct polarity is critical for circuit function and thermal performance. The MUR460S datasheet confirms cathode-band marking per JEDEC standards.

How does the reverse recovery time of the MUR460S compare across temperature and current conditions?

The MUR460S specifies t_rr ≤ 50 ns at I_F = 0.5 A, I_R = 1.0 A, and I_RR = 0.25 A, measured at 25°C. Recovery time increases slightly with junction temperature but remains within 55 ns up to 125°C per characterization curves. Unlike slower rectifiers, the MUR460S maintains consistent t_rr across its rated current range, making it predictable in high-frequency SMPS designs using the MUR460S.

Is the MUR460S suitable for use in automotive applications?

The MUR460S is not qualified to AEC-Q101 or automotive-grade reliability standards and is not recommended for safety-critical automotive systems. While its 175°C T_J rating exceeds typical under-hood temperatures, Taiwan Semiconductor explicitly states these devices are not designed for medical, life-saving, or life-sustaining applications-including automotive ADAS or powertrain control. For automotive use, consider AEC-Q101-certified alternatives instead of the MUR460S.

What packaging and reel specifications are available for the MUR460S?

The MUR460S is supplied in DO-214AB (SMC) package on 3,000-piece tape-and-reel format per ordering code MUR460S. The reel meets EIA-481-D standards, with pocket pitch of 8 mm and carrier tape width of 12 mm. Lead finish is matte tin per J-STD-002, and moisture sensitivity level is MSL Level 1-no floor life limitation before reflow. This packaging supports high-speed SMT assembly lines without dry-pack requirements for the MUR460S.