Taiwan Semiconductor Corporation S5G V7G

Overview

S5G V7G from Taiwan Semiconductor is a 5A, 400V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (max 1.15V at 5A), and high surge capability (100A IFSM). It serves as primary AC/DC input rectifier in compact off-line SMPS and LED drivers.

For engineers reviewing the S5G V7G datasheet, S5G V7G pinout, S5G V7G application, or S5G V7G equivalent, key selection criteria include repetitive peak reverse voltage (400V), thermal resistance (R_θJL = 13°C/W), junction capacitance (60pF), and moisture sensitivity level (MSL 1).

Technical Context

This single-die standard recovery rectifier operates with a maximum junction temperature of 150°C and exhibits reverse recovery time of 1500ns under IF = 0.5A, IR = 1.0A, Irr = 0.25A conditions. Its DO-214AB package supports automated placement and meets UL 94V-0 flammability rating.

The device delivers 5A average forward current with 100A non-repetitive surge rating (8.3ms half-sine), and maintains IR ≤ 10µA at 25°C and ≤ 250µA at 125°C under rated VR. Thermal performance is characterized by R_θJA = 47°C/W and R_θJL = 13°C/W.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Matte tin-plated leads, MSL Level 1, weight ≈0.210g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06 and ES5D, the S5G V7G offers optimal balance of 400V blocking, low conduction loss, and industrial-grade surge tolerance-making it preferred for universal-input SMPS where reliability under transient stress outweighs ultra-fast recovery needs.

Availability

S5G V7G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply across automotive-grade temperature ranges and long production lifecycles.

Supply support for S5G 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 manufacturer specializing in discrete power semiconductors, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.

The S5G V7G belongs to TSC's S5x series of general-purpose surface-mount rectifiers, engineered for cost-effective, high-reliability AC/DC front-end conversion in industrial and consumer power supplies.

FAQ

What is the maximum junction temperature rating for the S5G V7G?

The S5G V7G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table. This allows reliable operation in enclosed industrial enclosures or high-ambient environments when mounted on adequate copper area. Derating curves confirm usable current down to −55°C storage, and thermal resistance values (R_θJL = 13°C/W) enable accurate die temperature estimation in real-world layouts. The S5G V7G must not exceed this limit during transient or steady-state conditions.

Does the S5G V7G have a specified reverse recovery time, and how is it measured?

Yes, the S5G V7G specifies a reverse recovery time (t_rr) of 1500ns, measured under standardized conditions: I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A. This value reflects its standard recovery behavior-not optimized for high-frequency switching but appropriate for 50/60Hz and kHz-range SMPS. The S5G V7G datasheet includes Fig.6 showing the test circuit and waveform definitions, confirming measurement methodology per JEDEC standards.

Is the S5G V7G RoHS compliant and halogen-free?

Yes, the S5G V7G is fully RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and lead content is below 1000 ppm. This compliance is confirmed in the "Features" section of the official TSC datasheet (Version F2102) and applies to all units shipped under standard ordering code S5G V7G. No exemptions or exceptions apply to the S5G V7G.

What is the moisture sensitivity level (MSL) of the S5G V7G, and what does it mean for assembly?

The S5G V7G has Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH without baking prior to reflow. This eliminates floor-life tracking and pre-bake steps in SMT lines, reducing process complexity and cost. The S5G V7G's DO-214AB package construction and passivation ensure no popcorning risk during standard lead-free reflow profiles-critical for high-yield manufacturing of the S5G V7G.

How does the forward voltage of the S5G V7G compare to similar 5A rectifiers, and why does it matter?

The S5G V7G specifies a maximum forward voltage (V_F) of 1.15V at 5A and 25°C-lower than many competing 5A rectifiers (e.g., 1.3–1.7V typical). This directly reduces conduction loss by up to 0.75W at full load, lowering junction temperature and improving system efficiency. In thermally constrained designs like sealed LED drivers, this V_F advantage extends lifetime and enables smaller heatsinks. The S5G V7G achieves this via optimized silicon geometry and glass passivation, not trade-offs in surge or blocking capability.