Taiwan Semiconductor Corporation S5M V7G

Overview

S5M V7G from Taiwan Semiconductor is a 5A, 1000V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (1.15 V max at 5 A), high surge current capability (100 A), and 150°C maximum junction temperature. It serves as the primary output rectifier in high-voltage AC/DC converters and offline SMPS.

For engineers reviewing the S5M V7G datasheet, S5M V7G pinout, S5M V7G application, or S5M V7G equivalent, key selection criteria include repetitive peak reverse voltage (1000 V), forward current rating (5 A), thermal resistance (R_θJL = 13 °C/W), reverse recovery time (1500 ns), and moisture sensitivity level (MSL 1).

Technical Context

The S5M V7G is a single-die, standard-recovery silicon rectifier optimized for high-voltage switching power supplies. Its 1000 V V_RRM rating enables use in universal-input offline converters, while its 100 A I_FSM supports robust transient handling during startup and overload conditions.

Thermal performance is defined by R_θJL = 13 °C/W and R_θJA = 47 °C/W, indicating efficient heat transfer to the PCB pad and moderate ambient dissipation. Reverse recovery time of 1500 ns reflects standard recovery behavior-suitable for <100 kHz operation but not recommended for high-frequency synchronous rectification.

Key Specifications

Pinout & Package

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

Compared with STTH5L06D and ES5J, the S5M V7G delivers superior voltage robustness (1000 V) in surface-mount form, making it uniquely suited for universal-input offline converters where safety margin and automated assembly are critical-without requiring layout changes or heatsinks.

Availability

S5M V7G is available at Aetrix Electronics and suitable for industrial SMPS, LED driver power stages, AC/DC adapters, and telecom DC-DC converter input stages requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.

Supply support for S5M 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 Taiwanese manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, with ISO 9001 and IATF 16949 certification.

The S5M V7G belongs to TSC's S5x series of surface-mount rectifiers, designed specifically for cost-effective, high-reliability AC/DC power conversion in industrial, lighting, and consumer power supplies.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S5M V7G?

The S5M V7G has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V. This rating is confirmed in the Absolute Maximum Ratings table on page 1 of the official Taiwan Semiconductor datasheet (Version F2102). The "M" in S5M explicitly denotes the 1000 V grade within the S5x family, and this value is validated across all production lots and test conditions specified in the datasheet.

Is the S5M V7G suitable for use in high-frequency switching applications above 100 kHz?

No, the S5M V7G is not recommended for high-frequency switching above 100 kHz due to its 1500 ns reverse recovery time (trr). This parameter-measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A-is characteristic of standard-recovery rectifiers. For frequencies beyond 80–100 kHz, devices with trr < 500 ns (e.g., ES5J or ultrafast types) are preferred to minimize switching losses and EMI. The S5M V7G is best applied in 20–80 kHz flyback or forward converters.

What does the "V7G" suffix in S5M V7G indicate?

The "V7G" suffix in S5M V7G is Taiwan Semiconductor's internal date and process code: "V" denotes wafer fab location, "7" indicates year 2027 (or week/year code per internal scheme), and "G" specifies green (halogen-free) molding compound per IEC 61249-2-21. It does not affect electrical specifications-the core device remains the S5M (1000 V, 5 A rectifier) in DO-214AB package with identical ratings and performance.

Does the S5M V7G require pre-baking before reflow soldering?

No, the S5M V7G does not require pre-baking before reflow soldering because it is rated Moisture Sensitivity Level (MSL) 1 per J-STD-020. This means the device has unlimited floor life at ≤30°C/60% RH and can be placed directly onto the PCB and subjected to standard lead-free reflow profiles (e.g., JEDEC J-STD-020 Class 3) without moisture-related popcorning risk. No baking step is needed in manufacturing.

What is the thermal resistance from junction to lead (R_θJL) for the S5M V7G?

The junction-to-lead thermal resistance (R_θJL) for the S5M V7G is 13 °C/W, as specified in the Thermal Performance table of the official datasheet. This value is measured under standardized test conditions and reflects heat conduction from the silicon die to the lead frame-critical for estimating temperature rise when the device is mounted on a PCB with adequate copper area. It is independent of ambient conditions and applies only to the lead path, not the full junction-to-ambient path.