Taiwan Semiconductor Corporation S3J V7G

Overview

S3J V7G from Taiwan Semiconductor is a surface-mount general-purpose silicon rectifier diode with 600 V repetitive peak reverse voltage (VRRM), 3 A average forward current (IF), and DO-214AB (SMC) package. It features low forward voltage drop (max 1.15 V at 3 A, 25°C), high surge capability (100 A @ 8.3 ms), and operates up to 150°C junction temperature - used in AC/DC front-end rectification for industrial power adapters.

For engineers reviewing the S3J V7G datasheet, S3J V7G pinout, S3J V7G application, or S3J V7G equivalent, key selection criteria include VRRM rating, IFSM robustness, thermal resistance (RθJL = 13°C/W), reverse leakage at elevated temperature, and compatibility with automated SMT placement on high-reliability power supplies.

Technical Context

The S3J V7G is a single-die, standard recovery rectifier optimized for cost-sensitive, medium-voltage switching power applications. Its 1500 ns reverse recovery time (trr) and 60 pF junction capacitance reflect design trade-offs favoring low conduction loss over ultra-fast switching - suitable for 50–100 kHz SMPS topologies where EMI constraints permit moderate di/dt.

Thermally, it leverages the DO-214AB (SMC) package's low RθJL (13°C/W) to sustain 3 A continuous current with minimal heatsinking. The glass-passivated junction ensures stable IR performance across temperature (250 µA max at 125°C), supporting reliable operation in ambient temperatures up to 105°C with proper PCB copper area.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Weight: 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH3L06S and ES3J, the S3J V7G offers superior high-temperature reverse leakage control and lower thermal resistance to lead, making it preferable for thermally constrained, high-reliability industrial adapters - while ES3J provides identical form-factor fallback with minor IR trade-off.

Availability

S3J V7G is available at Aetrix Electronics and suitable for industrial power adapters, LED drivers, consumer wall adapters, and DC-DC converter input stages requiring stable component supply, long-lifecycle sourcing, and J-STD-020 MSL Level 1 compliance.

Supply support for S3J 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO 9001 and IATF 16949 certified production.

The S3J V7G belongs to TSC's S3x series of general-purpose surface-mount rectifiers - designed specifically for cost-effective, high-yield AC/DC conversion in commercial and industrial power supplies where reliability, thermal performance, and SMT manufacturability are prioritized.

FAQ

What is the maximum junction temperature rating for the S3J V7G?

The S3J V7G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version O2301). This allows the S3J V7G to operate reliably in enclosed industrial environments where ambient temperatures reach 70–85°C, provided PCB copper area and airflow meet thermal derating curves shown in Figure 1 of the S3J V7G datasheet.

Is the S3J V7G suitable for lead-free reflow soldering?

Yes, the S3J V7G is qualified for lead-free reflow soldering per J-STD-002. Its matte tin-plated leads ensure consistent wetting and joint integrity under JEDEC-standard peak temperatures up to 260°C. The device is rated MSL Level 1, meaning the S3J V7G can be stored indefinitely at ambient conditions without baking prior to assembly - a key advantage for high-volume SMT lines handling the S3J V7G.

Does the S3J V7G have a specified reverse recovery time (trr)?

Yes, the S3J V7G specifies a typical reverse recovery time (trr) of 1500 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as documented in the Electrical Specifications table (Version O2301). This trr value confirms the S3J V7G is a standard recovery rectifier - appropriate for 50–100 kHz switch-mode topologies but not recommended for >200 kHz ZVS or resonant converters where fast recovery is mandatory.

What does the "V7G" suffix indicate in S3J V7G?

The "V7G" suffix in S3J V7G denotes Taiwan Semiconductor's internal date code and factory marking: "V7" corresponds to week 7 of 2023, and "G" identifies the fabrication site. This marking aligns with TSC's standard coding per the Package Outline Drawing (HQ2SD07-DO214SMC-036 REV A) and does not affect electrical specifications - all S3J devices share identical VRRM, IF, and thermal parameters regardless of V7G or other date-code variants.

How does the S3J V7G compare to the S3K V7G in terms of voltage rating?

The S3J V7G has a repetitive peak reverse voltage (VRRM) of 600 V, whereas the S3K V7G is rated for 800 V. Both share identical IF (3 A), IFSM (100 A), package (DO-214AB), and thermal specs - the only functional difference is VRRM. Therefore, the S3J V7G is selected when 600 V blocking suffices (e.g., 240 VAC input), offering potential cost and inventory advantages over the higher-rated S3K V7G where over-specification is unnecessary.