Taiwan Semiconductor Corporation MUR310S M6G

Overview

MUR310S M6G from Taiwan Semiconductor is an ultra-fast recovery surface-mount rectifier diode in DO-214AB (SMC) package, rated for 3A average forward current and 100V repetitive peak reverse voltage, with 25ns reverse recovery time and 0.875V forward voltage at 3A/25°C - used in high-frequency switching mode power supplies for computer and telecom systems.

For engineers reviewing the MUR310S M6G datasheet, MUR310S M6G pinout, MUR310S M6G application, or MUR310S M6G equivalent, key selection criteria include V_RRM = 100 V, t_rr = 25 ns, I_F = 3 A, R_θJL = 11 °C/W, and DO-214AB mechanical compatibility for automated SMT assembly in compact DC-DC converters.

Technical Context

This single-die silicon rectifier uses glass-passivated junction technology to achieve ultra-fast recovery (t_rr ≤ 25 ns) and low forward voltage drop (V_F = 0.875 V @ 3 A, 25°C), enabling high-efficiency operation in high-frequency SMPS topologies. Its thermal resistance of 11 °C/W (junction-to-lead) supports reliable conduction under sustained 3 A loads.

The device operates across a full junction temperature range of –55°C to +175°C and meets J-STD-020 moisture sensitivity level 1, ensuring robust reflow compatibility without baking. Polarity is marked by a cathode band on the molded case per JEDEC DO-214AB outline.

Key Specifications

Pinout & Package

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

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 MUR310S M6G delivers optimal balance of 100 V rating, 25 ns recovery, and 0.875 V forward drop - making it preferred for 48 V–12 V telecom and server SMPS where efficiency, size, and voltage margin are jointly constrained.

Availability

MUR310S M6G is available at Aetrix Electronics and suitable for server VRMs, telecom DC-DC converters, and industrial PLC power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for MUR310S M6G 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 power rectifiers, TVS devices, and MOSFETs for industrial and computing markets.

The MUR310S M6G belongs to TSC's ultra-fast recovery rectifier family designed specifically for high-frequency switching power conversion - emphasizing low t_rr, stable V_F, and robust SMT packaging for automated manufacturing.

FAQ

What is the maximum junction temperature rating for the MUR310S M6G?

The MUR310S M6G has a maximum junction temperature (T_J) rating of +175°C, allowing operation in high-ambient environments such as enclosed server power supplies or industrial control cabinets. This rating is supported by its glass-passivated junction and DO-214AB thermal design, and applies across the full storage temperature range of –55°C to +175°C. The MUR310S M6G must be mounted with adequate copper pour to maintain junction temperature within limits under 3 A continuous load.

Is the MUR310S M6G RoHS and halogen-free compliant?

Yes, the MUR310S M6G is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound and matte tin-plated leads meet environmental standards required for consumer, telecom, and industrial end equipment. Compliance is verified per Taiwan Semiconductor's material declarations and applies to all units shipped under the MUR310S M6G ordering code. The MUR310S M6G carries no exemptions and is suitable for green manufacturing programs.

What does the 'M6G' suffix indicate in MUR310S M6G?

The 'M6G' suffix in MUR310S M6G denotes Taiwan Semiconductor's internal packaging and environmental coding: 'M6' specifies tape-and-reel packaging in 3,000-unit reels per DO-214AB (SMC) carrier tape, and 'G' indicates green (halogen-free) compound per IEC 61249-2-21. This matches the ordering information in the official datasheet and distinguishes it from legacy leaded or non-halogen-free variants. The MUR310S M6G is not functionally different from MUR310S but ensures full environmental compliance.

How does the reverse recovery time of the MUR310S M6G compare to standard fast recovery diodes?

The MUR310S M6G has a reverse recovery time (t_rr) of 25 ns under standard test conditions (I_F = 0.5 A, I_R = 1.0 A, I_RR = 0.25 A), which is significantly faster than typical fast recovery diodes (50–100 ns). This ultra-fast recovery reduces switching losses and EMI in high-frequency SMPS. The MUR310S M6G achieves this via optimized silicon processing and glass passivation - confirmed in the Electrical Specifications table of the Taiwan Semiconductor datasheet. Designers should verify layout parasitics do not degrade effective t_rr in final implementation.

Can the MUR310S M6G replace the MUR305S in a 50 V design?

No - the MUR310S M6G is not a direct replacement for the MUR305S in a 50 V design if voltage margin or V_F matching is critical. While both share identical package, thermal specs, and t_rr, the MUR310S M6G has higher V_RRM (100 V vs. 50 V) and slightly higher V_F (0.875 V vs. 0.825 V @ 3 A, 25°C per datasheet). Substituting MUR310S M6G may increase conduction loss marginally and is acceptable only if system reverse voltage never exceeds 50 V and thermal design accommodates the small V_F increase. Always validate with actual MUR310S M6G measurements.