Taiwan Semiconductor Corporation S5K M6G

Overview

S5K M6G from Taiwan Semiconductor is a 5 A, 800 V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 1.15 V max forward voltage at 5 A, 100 A peak surge current capability, and 150 °C maximum junction temperature - deployed in high-efficiency AC/DC front-end stages of industrial power adapters.

For engineers reviewing the S5K M6G datasheet, S5K M6G pinout, S5K M6G application, or S5K M6G equivalent, key selection criteria include repetitive peak reverse voltage (800 V), thermal resistance (13 °C/W junction-to-lead), reverse recovery time (1500 ns), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance for automated SMT assembly in regulated power supplies.

Technical Context

This single-die standard recovery rectifier operates with a glass-passivated PN junction, optimized for switching-mode power supply (SMPS) output rectification where moderate speed and high surge robustness are prioritized over ultrafast recovery. Its 1500 ns reverse recovery time and 60 pF junction capacitance reflect trade-offs favoring low conduction loss and ruggedness over high-frequency switching.

The device supports continuous 5 A average forward current at lead temperature ≤ 100 °C, with thermal performance defined by R_θJL = 13 °C/W and R_θJA = 47 °C/W. Polarity is marked by a cathode band on the DO-214AB molded case, and terminals are matte tin-plated per J-STD-002 solderability standards.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, molded epoxy 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 rectifier applications.

Compared with STTH5L06W and VS-5EWH06FN-M3, the S5K M6G trades speed for higher voltage robustness and drop-in DO-214AB compatibility - making it optimal for cost-sensitive, 800 V-class industrial adapters where thermal margin and surge immunity outweigh fast-recovery needs.

Availability

S5K M6G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial DC power supplies requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for S5K 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, serving global power electronics markets since 1979.

The S5A–S5M series was designed specifically for high-reliability, cost-optimized rectification in mainstream offline power conversion - balancing ruggedness, manufacturability, and regulatory compliance across consumer, industrial, and lighting applications.

FAQ

What is the maximum repetitive peak reverse voltage rating for the S5K M6G?

The S5K M6G has a maximum repetitive peak reverse voltage (V_RRM) of 800 V, as specified in the absolute maximum ratings table of the Taiwan Semiconductor datasheet (Version F2102). This rating applies under standard test conditions and defines the highest reverse voltage the device can block repeatedly without breakdown. Designers must ensure that peak circuit voltage, including transients and ringing, remains below this value with appropriate safety margin.

Does the S5K M6G meet RoHS and halogen-free requirements?

Yes, the S5K M6G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the FEATURES section of the official Taiwan Semiconductor datasheet. The device uses environmentally compliant materials throughout its construction, including the UL 94V-0 molding compound and matte tin-plated leads, supporting compliance for export to EU, China, and other regulated markets.

What is the reverse recovery time (t_rr) of the S5K M6G and how is it measured?

The S5K M6G has a typical reverse recovery time (t_rr) of 1500 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, as stated in the ELECTRICAL SPECIFICATIONS table. This parameter reflects the time required for the diode to transition from forward conduction to reverse blocking state and directly impacts switching losses and EMI in hard-switched topologies.

Can the S5K M6G be used in place of the S5M (1000 V version) in a 900 V application?

No, the S5K M6G is not suitable for 900 V applications because its V_RRM is 800 V - 100 V below the required blocking voltage. The S5M variant (1000 V) is the correct choice for such use cases. Substituting S5K M6G risks premature avalanche breakdown, especially under line surges or temperature rise, compromising reliability and safety certification.

What is the junction-to-lead thermal resistance (R_θJL) of the S5K M6G and why does it matter?

The S5K M6G has a typical junction-to-lead thermal resistance (R_θJL) of 13 °C/W, per the THERMAL PERFORMANCE table. This value quantifies how effectively heat transfers from the silicon die to the device leads, directly influencing achievable continuous current in PCB-mounted designs. Lower R_θJL allows sustained 5 A operation with minimal external heatsinking when leads are thermally anchored to large copper planes.