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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation S4J V7G

Name: S4J V7G
Brand: Taiwan Semiconductor Corporation
SKU: S4J V7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S4J V7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S4J V7G.pdf

Description:: DIODE GEN PURP 600V 4A DO214AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S4J V7G from Taiwan Semiconductor is a 4A, 600V surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring glass-passivated junction, low forward voltage drop (≤1.15 V at 4 A), and high surge capability (100 A, 8.3 ms). It serves as primary AC/DC input rectification in compact power supplies for consumer adapters and LED drivers.

For engineers reviewing the S4J V7G datasheet, S4J V7G pinout, S4J V7G application, or S4J V7G equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, 1500 ns reverse recovery time, thermal resistance (R_θJL = 13 °C/W), moisture sensitivity level 1 compliance, and RoHS/halogen-free status per IEC 61249-2-21.

Technical Context

The S4J V7G is a single-die, standard-recovery silicon rectifier optimized for cost-sensitive, medium-voltage switching power conversion. Its 1500 ns reverse recovery time and 60 pF junction capacitance reflect trade-offs favoring robust surge handling over ultra-fast switching.

Designed for surface-mount assembly with matte tin-plated leads compliant to J-STD-002, it operates across –55°C to +150°C junction temperature range and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Maximum repetitive reverse blocking voltage; defines safe AC input voltage derating in bridge or single-phase rectifier designs.
I_F	4 A - Continuous average forward current at T_L = 75°C; determines heatsink sizing in conduction-limited applications.
I_FSM	100 A - Non-repetitive peak surge current (8.3 ms half-sine); supports inrush current handling in offline SMPS inputs.
V_F	≤1.15 V @ 4 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal design in high-duty-cycle operation.
t_rr	1500 ns - Reverse recovery time affects switching loss and EMI in higher-frequency converters; not suitable for >100 kHz hard-switched topologies.
R_θJL	13 °C/W - Junction-to-lead thermal resistance enables direct PCB copper pour thermal coupling without external heatsinks in many 4A applications.

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with cathode band marking; dimensions per Taiwan Semiconductor package outline drawing Rev. K2102; weight ≈ 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to AC input or transformer secondary; requires adequate trace width for 4 A continuous and 100 A surge.
Cathode (Lead 2)	Forward current exit / reverse blocking terminal	Marked by visible band; connects to bulk capacitor positive rail; polarity error causes immediate failure in bridge configurations.

Key Features

Feature	Design Value
Glass passivated chip junction	Enables stable long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial-grade adapters.
Moisture sensitivity level 1	Allows unlimited floor life before reflow; eliminates bake requirement and simplifies SMT line logistics.
Matte tin-plated leads	Guarantees solderability per J-STD-002; compatible with lead-free and SnPb reflow profiles without oxidation concerns.
UL 94V-0 molding compound	Meets fire-safety requirements for end equipment certifications including UL/EN 62368-1 in power adapters and lighting drivers.

Applications

AC/DC Wall Adapters	LED Constant-Voltage Drivers
Use Scenario: 5–24 W universal-input (90–264 V_AC) offline flyback adapter for consumer electronics. IC Role / Device Role / Timing Role: Primary-side input rectifier converting AC line to DC bus prior to the PWM controller and power MOSFET. Use Value: 600 V V_RRM provides 2× safety margin over 264 V_AC peak (373 V), while 100 A I_FSM withstands cold-start inrush into bulk capacitors.	Use Scenario: 12–48 V output constant-voltage LED driver for commercial downlights and panel lights. IC Role / Device Role / Timing Role: Input rectifier in bridge configuration feeding PFC stage or directly into buck-derived topology. Use Value: Low 1.15 V V_F reduces conduction loss at 4 A, improving efficiency in thermally constrained enclosed fixtures.
Industrial SMPS Inputs	DC-DC Converter Front-Ends
Use Scenario: 24–48 V input industrial power supply with wide ambient temperature range (–40°C to +85°C). IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated forward or half-bridge converter delivering regulated 3.3/5/12 V rails. Use Value: –55°C to +150°C operating range and 13 °C/W R_θJL enable direct PCB thermal coupling without derating in unventilated enclosures.	Use Scenario: 48 V telecom or server DC-DC brick front-end rectifying 48 V_DC input before isolation stage. IC Role / Device Role / Timing Role: Input protection and polarity conditioning rectifier ahead of active OR-ing or hot-swap controllers. Use Value: 100 A surge rating absorbs load-dump transients; halogen-free and RoHS compliance meet IPC-1752A reporting requirements.

AC/DC Wall Adapters

LED Constant-Voltage Drivers

Use Scenario: 5–24 W universal-input (90–264 V_AC) offline flyback adapter for consumer electronics.

IC Role / Device Role / Timing Role: Primary-side input rectifier converting AC line to DC bus prior to the PWM controller and power MOSFET.

Use Value: 600 V V_RRM provides 2× safety margin over 264 V_AC peak (373 V), while 100 A I_FSM withstands cold-start inrush into bulk capacitors.

Use Scenario: 12–48 V output constant-voltage LED driver for commercial downlights and panel lights.

IC Role / Device Role / Timing Role: Input rectifier in bridge configuration feeding PFC stage or directly into buck-derived topology.

Use Value: Low 1.15 V V_F reduces conduction loss at 4 A, improving efficiency in thermally constrained enclosed fixtures.

Industrial SMPS Inputs

DC-DC Converter Front-Ends

Use Scenario: 24–48 V input industrial power supply with wide ambient temperature range (–40°C to +85°C).

IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated forward or half-bridge converter delivering regulated 3.3/5/12 V rails.

Use Value: –55°C to +150°C operating range and 13 °C/W R_θJL enable direct PCB thermal coupling without derating in unventilated enclosures.

Use Scenario: 48 V telecom or server DC-DC brick front-end rectifying 48 V_DC input before isolation stage.

IC Role / Device Role / Timing Role: Input protection and polarity conditioning rectifier ahead of active OR-ing or hot-swap controllers.

Use Value: 100 A surge rating absorbs load-dump transients; halogen-free and RoHS compliance meet IPC-1752A reporting requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH4L06S	Same 4 A / 600 V rating; faster t_rr = 65 ns (hyperfast), higher V_F = 1.7 V typical; TO-277 package.	Better suited for high-frequency PFC or ZVS circuits where recovery loss dominates; less optimal for thermally limited low-cost adapters.	Select STTH4L06S when switching frequency exceeds 100 kHz and EMI filtering headroom is available.
ON Semi MUR460	4 A / 600 V; ultrafast t_rr = 50 ns; VF = 1.3 V max; DO-201AD package (axial lead).	Requires through-hole assembly; higher R_θJA limits power density; preferred in legacy or service-repair contexts.	Choose MUR460 only if board layout mandates axial-leaded components or existing tooling prohibits SMC footprint change.

Compared with STTH4L06S and MUR460, the S4J V7G prioritizes cost-effective SMT manufacturability, thermal robustness via low R_θJL, and surge resilience-making it optimal for mainstream 50–100 kHz offline SMPS where recovery speed is secondary to reliability and assembly yield.

Availability

S4J V7G is available at Aetrix Electronics and suitable for AC/DC wall adapters, LED constant-voltage drivers, and industrial SMPS inputs requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for S4J 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power, automotive, and industrial markets since 1979.

The S4A–S4M series was developed specifically for high-volume, cost-optimized AC/DC rectification in consumer and industrial power supplies-emphasizing process consistency, JEDEC-compliant packaging, and extended temperature reliability.

FAQ

What is the maximum junction temperature rating for the S4J V7G?

The S4J V7G has a maximum junction temperature (T_J) rating of +150°C, with a minimum of –55°C. This allows operation in demanding environments such as enclosed LED drivers or industrial power supplies without forced airflow. The device's R_θJL of 13 °C/W enables effective heat transfer to the PCB, and the S4J V7G must be mounted on sufficient copper area to maintain T_J ≤ 150°C under full 4 A load at elevated ambient temperatures.

Is the S4J V7G RoHS and halogen-free compliant?

Yes, the S4J V7G is RoHS compliant and halogen-free per IEC 61249-2-21. Taiwan Semiconductor confirms this in the official datasheet revision K2102. The molding compound, lead finish, and internal construction contain no restricted substances above threshold limits, and the S4J V7G is suitable for use in environmentally regulated markets including the EU and China RoHS zones.

What does the 'V7G' suffix indicate in S4J V7G?

The 'V7G' suffix in S4J V7G denotes Taiwan Semiconductor's internal date code and factory marking: 'V' indicates manufacturing year (2025), '7' is the calendar week, and 'G' identifies the fabrication site. This is consistent with TSC's standard marking diagram shown in datasheet page 5. The electrical and mechanical specifications of the S4J V7G remain identical to all other S4J devices bearing different date codes.

Can the S4J V7G replace the S4K or S4M in a design?

No-the S4J V7G is rated for 600 V V_RRM, whereas S4K is 800 V and S4M is 1000 V. Substituting S4J V7G in a circuit designed for ≥800 V peak reverse stress risks catastrophic failure during line surges or transients. The S4J V7G is only interchangeable with other 600 V-rated variants (e.g., S4J xxx) and must be validated for voltage margin, especially in 277 V_AC or three-phase rectifier applications.

What is the reverse leakage current specification for the S4J V7G at 125°C?

At T_J = 125°C and rated V_R = 600 V, the S4J V7G exhibits a maximum reverse leakage current (I_R) of 250 µA, as specified in the Electrical Specifications table. This value is critical for standby power budgeting in energy-efficient adapters. The S4J V7G's leakage remains well within Class VI and ERP Tier 2 limits when used with appropriate X/Y capacitor filtering and snubber networks.

S4J V7G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 4A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 4 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 1.5 µs

Current - Reverse Leakage @ Vr:: 10 µA @ 600 V

Capacitance @ Vr, F:: 60pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

Operating Temperature - Junction:: -55°C ~ 150°C

S4J V7G FAQ

1.How can I place an order for S4J V7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S4J V7G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for S4J V7G reliable?

The price and inventory of S4J V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4J V7G is usually 5 days.

3.What payment methods are accepted for S4J V7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4J V7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S4J V7G?

S4J V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S4J V7G order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for S4J V7G?

For technical support, including S4J V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4J V7G requirements.

6.How does Aetrix verify that S4J V7G is sourced from the original manufacturer or authorized distributors?

All S4J V7G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S4J V7G meets industry standards.

7.What is the process for return or replacement of S4J V7G?

All S4J V7G units undergo pre-shipment inspection (PSI). If there is an issue with S4J V7G, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The S4J V7G part is unused and in its original packaging.

Return procedure for S4J V7G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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