Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation S4K M6G

Name: S4K M6G
Brand: Taiwan Semiconductor Corporation
SKU: S4K M6G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: S4K M6G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S4K M6G.pdf

Description:: DIODE GEN PURP 800V 4A DO214AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,633

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

S4K M6G from Taiwan Semiconductor is a surface-mount silicon rectifier diode with 800 V repetitive peak reverse voltage (V_RRM), 4 A average forward current (I_F), and 100 A non-repetitive surge capability (I_FSM), designed for high-efficiency AC/DC conversion in compact power supplies and LED drivers.

For engineers reviewing the S4K M6G datasheet, S4K M6G pinout, S4K M6G application, or S4K M6G equivalent, key selection criteria include its DO-214AB (SMC) package thermal resistance (R_θJL = 13 °C/W), low 1.15 V forward voltage at 4 A, and 1500 ns reverse recovery time - critical for SMPS efficiency and EMI control.

Technical Context

This single-die standard recovery rectifier operates across -55°C to +150°C junction temperature range and features glass-passivated junction for reliability under thermal cycling and humidity exposure. Its 60 pF junction capacitance at 1 MHz and 4 V reverse bias supports predictable switching behavior in flyback and boost converters.

The device uses a unidirectional configuration with cathode band polarity marking, matte tin-plated leads compliant with J-STD-002 solderability, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards for industrial-grade assembly.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	800 V - maximum continuous reverse blocking voltage before breakdown; defines usable input voltage range in offline rectification
I_F	4 A - average forward current rating at T_L = 75°C; determines steady-state power handling without derating
I_FSM	100 A - peak non-repetitive surge current (8.3 ms half-sine); enables robustness against line transients and inrush
V_F	1.15 V max @ 4 A, 25°C - forward conduction loss directly impacts conduction efficiency and thermal design margin
t_rr	1500 ns - reverse recovery time affects switching losses and EMI generation in high-frequency SMPS topologies
R_θJL	13 °C/W - junction-to-lead thermal resistance enables direct heatsinking via PCB copper pour or metal-core board

Pinout & Package

Package: DO-214AB (SMC), surface-mount, single-anode/single-cathode configuration with cathode indicated by molded band. Weight: 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	AC input / positive-side connection	Accepts incoming AC or switched node; must withstand full reverse voltage when cathode is biased higher
Cathode (Lead 2)	DC output / negative-side connection	Delivers rectified current to filter capacitor; marked by visible band; carries full I_F and I_FSM

Key Features

Feature	Design Value
Glass-passivated junction	Enhances moisture resistance and long-term reliability under humid operating environments per J-STD-020 Level 1
Matte tin-plated leads	Ensures consistent solder wetting and intermetallic formation during reflow, meeting J-STD-002 requirements
UL 94V-0 molding compound	Provides flame-retardant encapsulation required for safety-certified power adapters and lighting systems
JESD201 Class 2 whisker resistance	Prevents tin whisker growth under thermal stress, supporting stable operation in automotive and industrial applications

Applications

LED Driver Power Supply	Industrial AC/DC Adapter
Use Scenario: Rectifying 100–277 VAC mains input in constant-current LED driver modules for streetlight and commercial lighting. IC Role / Device Role / Timing Role: Primary-side unidirectional rectifier converting AC to DC bus prior to PFC and DC/DC stages. Use Value: 800 V V_RRM provides 2× safety margin over 277 VAC RMS; 100 A I_FSM absorbs lightning-induced surges without failure.	Use Scenario: Input rectification in DIN-rail mounted 24 V/48 V industrial power supplies powering PLCs and sensors. IC Role / Device Role / Timing Role: High-current bridge leg component in discrete full-wave rectifier configurations. Use Value: R_θJL = 13 °C/W allows direct thermal coupling to metal-clad PCBs, enabling >4 A continuous operation without external heatsink.
Switched-Mode Power Supply (SMPS)	DC-DC Converter Front-End
Use Scenario: Output rectification in 65–100 kHz flyback converters used in telecom and networking equipment. IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier conducting during transformer reset phase. Use Value: 1.15 V V_F minimizes conduction loss at 4 A load; 1500 ns t_rr limits reverse recovery ringing and EMI filtering burden.	Use Scenario: Input stage rectification in isolated 48 V–12 V DC-DC modules for server power distribution. IC Role / Device Role / Timing Role: Bulk rectifier feeding bulk capacitor bank in high-density, thermally constrained modules. Use Value: DO-214AB footprint enables automated placement; 0.210 g mass supports vibration-resistant mounting in mobile infrastructure gear.

LED Driver Power Supply

Industrial AC/DC Adapter

Use Scenario: Rectifying 100–277 VAC mains input in constant-current LED driver modules for streetlight and commercial lighting.

IC Role / Device Role / Timing Role: Primary-side unidirectional rectifier converting AC to DC bus prior to PFC and DC/DC stages.

Use Value: 800 V V_RRM provides 2× safety margin over 277 VAC RMS; 100 A I_FSM absorbs lightning-induced surges without failure.

Use Scenario: Input rectification in DIN-rail mounted 24 V/48 V industrial power supplies powering PLCs and sensors.

IC Role / Device Role / Timing Role: High-current bridge leg component in discrete full-wave rectifier configurations.

Use Value: R_θJL = 13 °C/W allows direct thermal coupling to metal-clad PCBs, enabling >4 A continuous operation without external heatsink.

Switched-Mode Power Supply (SMPS)

DC-DC Converter Front-End

Use Scenario: Output rectification in 65–100 kHz flyback converters used in telecom and networking equipment.

IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier conducting during transformer reset phase.

Use Value: 1.15 V V_F minimizes conduction loss at 4 A load; 1500 ns t_rr limits reverse recovery ringing and EMI filtering burden.

Use Scenario: Input stage rectification in isolated 48 V–12 V DC-DC modules for server power distribution.

IC Role / Device Role / Timing Role: Bulk rectifier feeding bulk capacitor bank in high-density, thermally constrained modules.

Use Value: DO-214AB footprint enables automated placement; 0.210 g mass supports vibration-resistant mounting in mobile infrastructure gear.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH4R08DJF	800 V V_RRM, 4 A I_F, but faster t_rr = 75 ns (soft recovery); higher V_F = 1.7 V @ 4 A	Better suited for high-frequency ZVS/ZCS topologies where reverse recovery noise must be minimized	Select STTH4R08DJF when EMI compliance is critical and conduction loss budget allows higher V_F
ON Semi MUR480	800 V V_RRM, 4 A I_F, t_rr = 75 ns, V_F = 1.75 V; TO-220AC package (not SMC)	Requires through-hole layout and heatsink mounting; unsuitable for fully SMT designs	Choose MUR480 only if legacy board reuse or forced-air cooling mandates TO-220 form factor

Compared with STTH4R08DJF and MUR480, the S4K M6G offers optimal balance of cost, SMT compatibility, and thermal performance in space-constrained 800 V rectification - prioritizing manufacturability and junction-to-lead heat transfer over ultrafast recovery.

Availability

S4K M6G is available at Aetrix Electronics and suitable for LED driver power supplies, industrial AC/DC adapters, and switched-mode power supplies requiring stable component supply and RoHS-compliant, halogen-free construction.

Supply support for S4K 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 and protection markets since 1979.

The S4A–S4M series targets cost-sensitive, high-volume AC/DC front-end applications where reliability, thermal performance, and SMT process compatibility are prioritized over ultrafast switching.

FAQ

What is the maximum junction temperature rating for the S4K M6G?

The S4K M6G has a maximum junction temperature (T_J) rating of +150°C, with operational range spanning -55°C to +150°C. This rating enables use in enclosed, high-ambient-temperature environments such as sealed LED luminaires and industrial enclosures. Thermal design must ensure that actual junction temperature remains within this limit under worst-case I_F and ambient conditions, using the specified R_θJL = 13 °C/W path to lead.

Does the S4K M6G meet RoHS and halogen-free requirements?

Yes, the S4K M6G is RoHS compliant and halogen-free per IEC 61249-2-21. The device uses lead-free matte tin plating on leads and halogen-free epoxy molding compound. These compliance attributes are verified per TSC's manufacturing documentation and are essential for CE-marked lighting and industrial power products sold in EU and other regulated markets.

What is the reverse recovery time (t_rr) of the S4K M6G and how is it measured?

The S4K M6G has a 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. This value reflects standard recovery behavior suitable for 65–100 kHz SMPS operation. It is not optimized for high-frequency ZVS circuits, where faster t_rr devices like the STTH4R08DJF would be preferred.

Is the S4K M6G pin-compatible with other S4x series rectifiers in DO-214AB package?

Yes, all S4x devices including S4K M6G share identical DO-214AB (SMC) mechanical dimensions, lead spacing, and polarity marking (cathode band). This allows direct substitution across the S4A–S4M family for voltage rating changes without PCB layout modification - provided thermal and electrical margins remain acceptable for the new V_RRM and I_F ratings.

What packaging format is available for the S4K M6G?

The S4K M6G is supplied in tape-and-reel packaging with 3,000 units per reel, optimized for high-speed automated pick-and-place assembly. The reel complies with EIA-481 standards and includes moisture barrier bagging per J-STD-020 Level 1, eliminating bake requirements prior to reflow soldering.

S4K M6G 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):: 800 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:: 100 µA @ 800 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

S4K M6G FAQ

1.How can I place an order for S4K M6G through Aetrix?

Please submit a Request for Quotation (RFQ) for S4K M6G 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 S4K M6G reliable?

The price and inventory of S4K M6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S4K M6G is usually 5 days.

3.What payment methods are accepted for S4K M6G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S4K M6G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S4K M6G?

S4K M6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S4K M6G 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 S4K M6G?

For technical support, including S4K M6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S4K M6G requirements.

6.How does Aetrix verify that S4K M6G is sourced from the original manufacturer or authorized distributors?

All S4K M6G 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 S4K M6G meets industry standards.

7.What is the process for return or replacement of S4K M6G?

All S4K M6G units undergo pre-shipment inspection (PSI). If there is an issue with S4K M6G, 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 S4K M6G part is unused and in its original packaging.

Return procedure for S4K M6G:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…