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

Taiwan Semiconductor Corporation S3GHR7G

Name: S3GHR7G
Brand: Taiwan Semiconductor Corporation
SKU: S3GHR7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S3GHR7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S3GHR7G.pdf

Description:: DIODE GEN PURP 400V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:8,360

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Product details

Overview

S3GHR7G from Taiwan Semiconductor is a 400 V, 3 A surface-mount silicon rectifier diode in DO-214AB (SMC) package, featuring 100 A surge current capability, 1.15 V max forward voltage at 3 A, and 10 µA max reverse leakage at 25°C - used in AC/DC front-end rectification for compact switch-mode power supplies.

For engineers reviewing the S3GHR7G datasheet, S3GHR7G pinout, S3GHR7G application, or S3GHR7G equivalent, key selection criteria include repetitive peak reverse voltage (V_RRM = 400 V), thermal resistance (R_θJA = 47 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial-grade power conversion designs.

Technical Context

This single-die standard recovery rectifier operates with a typical reverse recovery time of 1500 ns under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A conditions and exhibits 60 pF junction capacitance at 1 MHz and 4.0 V reverse bias. Its glass-passivated junction ensures stable performance across temperature and humidity stress.

The device is rated for continuous forward current of 3 A at case temperature ≤ 75 °C, derates linearly to zero at 150 °C junction temperature, and withstands non-repetitive surge currents up to 100 A (8.3 ms half-sine) or 230 A (1.0 ms), making it suitable for transient-heavy input stages.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse voltage the diode blocks without breakdown in normal operation
I_F	3 A - average forward current rating at T_C = 75 °C; defines continuous conduction capacity
I_FSM	100 A (8.3 ms) - peak non-repetitive surge current handling for line-start or fault transients
V_F	≤1.15 V @ 3 A, 25 °C - forward voltage drop directly impacts conduction loss and thermal design
R_θJA	47 °C/W - junction-to-ambient thermal resistance determines required heatsinking for given power dissipation
T_J max	+150 °C - maximum allowable junction temperature; sets upper limit for thermal management margin
I_R	≤10 µA @ 400 V, 25 °C - reverse leakage current affects standby power and high-impedance circuit integrity

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance; UL 94V-0 molded compound; weight ≈ 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC input or transformer secondary low-side during positive half-cycle conduction
Cathode	Forward current exit point	Marked by band; ties to output rail or smoothing capacitor positive terminal; defines polarity in layout

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance per J-STD-020 Level 1 MSL rating
Low V_F (≤1.15 V)	Reduces conduction losses in high-duty-cycle SMPS rectifiers, improving efficiency and easing thermal design
High I_FSM (100 A)	Supports robust inrush current handling during cold start or short-circuit events without failure
RoHS & halogen-free	Meets global environmental compliance requirements for industrial and consumer end equipment
DO-214AB mechanical robustness	Enables automated pick-and-place assembly and withstands board flexure in high-volume manufacturing

Applications

AC/DC Adapter Input Rectification	LED Driver Bulk Rectification
Use Scenario: Converts 85–265 V_AC mains to pulsating DC before PFC or buck converter stage in wall adapters. IC Role / Device Role / Timing Role: Standard recovery rectifier performing unidirectional current flow during positive AC half-cycles. Use Value: 400 V V_RRM provides 2× safety margin over 265 V_AC peak (375 V), while 3 A I_F supports up to 15 W output designs.	Use Scenario: Rectifies transformer-isolated AC output in constant-current LED drivers for street lighting or commercial fixtures. IC Role / Device Role / Timing Role: Single-phase bridge leg component delivering DC bus to downstream current-regulating circuitry. Use Value: 100 A I_FSM tolerates lamp-strike surges; 150 °C T_J max accommodates enclosed thermal environments.
Industrial SMPS Front-End	DC-DC Converter Input Stage
Use Scenario: High-reliability rectification in 24 V or 48 V industrial power supplies operating in extended temperature ranges. IC Role / Device Role / Timing Role: Primary-side rectifier in offline flyback or forward converters powering PLC I/O modules or sensors. Use Value: –55 to +150 °C T_J range and JESD 201 Class 2 whisker resistance ensure stability in harsh factory settings.	Use Scenario: Input rectification for isolated DC-DC modules converting 48 V telecom bus to 12 V or 5 V sub-rails. IC Role / Device Role / Timing Role: Discrete rectifier replacing integrated solutions where cost, thermal isolation, or replacement flexibility is prioritized. Use Value: DO-214AB footprint allows direct PCB replacement of legacy SMC-packaged diodes without layout change.

AC/DC Adapter Input Rectification

LED Driver Bulk Rectification

Use Scenario: Converts 85–265 V_AC mains to pulsating DC before PFC or buck converter stage in wall adapters.

IC Role / Device Role / Timing Role: Standard recovery rectifier performing unidirectional current flow during positive AC half-cycles.

Use Value: 400 V V_RRM provides 2× safety margin over 265 V_AC peak (375 V), while 3 A I_F supports up to 15 W output designs.

Use Scenario: Rectifies transformer-isolated AC output in constant-current LED drivers for street lighting or commercial fixtures.

IC Role / Device Role / Timing Role: Single-phase bridge leg component delivering DC bus to downstream current-regulating circuitry.

Use Value: 100 A I_FSM tolerates lamp-strike surges; 150 °C T_J max accommodates enclosed thermal environments.

Industrial SMPS Front-End

DC-DC Converter Input Stage

Use Scenario: High-reliability rectification in 24 V or 48 V industrial power supplies operating in extended temperature ranges.

IC Role / Device Role / Timing Role: Primary-side rectifier in offline flyback or forward converters powering PLC I/O modules or sensors.

Use Value: –55 to +150 °C T_J range and JESD 201 Class 2 whisker resistance ensure stability in harsh factory settings.

Use Scenario: Input rectification for isolated DC-DC modules converting 48 V telecom bus to 12 V or 5 V sub-rails.

IC Role / Device Role / Timing Role: Discrete rectifier replacing integrated solutions where cost, thermal isolation, or replacement flexibility is prioritized.

Use Value: DO-214AB footprint allows direct PCB replacement of legacy SMC-packaged diodes without layout change.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04S	V_RRM = 400 V, I_F = 3 A, but faster trr ≈ 75 ns; higher V_F ≈ 1.3 V	Better suited for higher-frequency switching where recovery loss dominates	Select S3GHR7G when lower conduction loss and cost are prioritized over ultra-fast recovery
ON Semi MUR340	V_RRM = 400 V, I_F = 3 A, trr ≈ 50 ns, VF ≈ 1.25 V; slightly higher R_θJA (50 °C/W)	Preferred in space-constrained layouts requiring minimal reverse recovery charge	Choose S3GHR7G for higher surge tolerance (100 A vs. 75 A) and superior thermal resistance in thermally dense assemblies

Compared with STTH3L04S and MUR340, the S3GHR7G delivers lower forward voltage and higher surge current at the expense of slower recovery - optimizing for efficiency and ruggedness in <100 kHz SMPS rather than high-frequency PFC or resonant topologies.

Availability

S3GHR7G is available at Aetrix Electronics and suitable for switch-mode power supplies, LED lighting drivers, and industrial AC/DC adapters requiring stable component supply, consistent parametric performance, and full traceability across production lots.

Supply support for S3GHR7G 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 S3GHR7G belongs to TSC's S3x series of general-purpose surface-mount rectifiers designed specifically for cost-sensitive, high-volume AC/DC conversion applications demanding reliability, manufacturability, and regulatory compliance.

FAQ

What is the maximum junction temperature rating for the S3GHR7G?

The S3GHR7G has a maximum junction temperature (T_J) rating of +150 °C, with a storage temperature range of –55 to +150 °C. This rating enables operation in thermally demanding environments such as enclosed LED drivers or industrial power supplies. Derating curves confirm zero average forward current capability at 150 °C case temperature, requiring appropriate thermal design to maintain safe operating margins for the S3GHR7G.

Does the S3GHR7G meet RoHS and halogen-free requirements?

Yes, the S3GHR7G is RoHS compliant and halogen-free per manufacturer specifications. The molding compound and plating materials satisfy EU Directive 2011/65/EU and JEDEC JS709 standards. This makes the S3GHR7G suitable for export to regulated markets and compatible with lead-free reflow processes, supporting environmentally responsible manufacturing for products using the S3GHR7G.

What is the reverse recovery time (t_rr) of the S3GHR7G and how does it affect circuit performance?

The S3GHR7G has a reverse recovery time (t_rr) of 1500 ns under specified test conditions (I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A). This relatively long t_rr indicates standard recovery behavior, making the S3GHR7G best suited for line-frequency or low-switching-frequency (<100 kHz) rectification. In high-frequency designs, this t_rr may increase switching losses - a key consideration when selecting the S3GHR7G versus ultrafast alternatives.

Can the S3GHR7G be used in place of other S3x series diodes like S3J or S3K?

No - the S3GHR7G is specifically rated for 400 V V_RRM, whereas S3J is 600 V and S3K is 800 V. Substituting across voltage grades risks premature breakdown under transient overvoltage. While all S3x devices share identical DO-214AB packaging and thermal characteristics, voltage rating is not interchangeable. Always verify system peak reverse stress against the exact V_RRM of the S3GHR7G before substitution.

What is the moisture sensitivity level (MSL) of the S3GHR7G and what handling precautions apply?

The S3GHR7G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and requires no dry pack or floor life limitations. It can be stored indefinitely at ambient conditions and subjected to standard reflow profiles without baking. This simplifies inventory management and assembly logistics for the S3GHR7G compared to higher-MSL components requiring controlled handling.

S3GHR7G 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):: 400 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 3 A

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

Reverse Recovery Time (trr):: 1.5 µs

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

S3GHR7G FAQ

1.How can I place an order for S3GHR7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S3GHR7G 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 S3GHR7G reliable?

The price and inventory of S3GHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3GHR7G is usually 5 days.

3.What payment methods are accepted for S3GHR7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3GHR7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S3GHR7G?

S3GHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S3GHR7G 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 S3GHR7G?

For technical support, including S3GHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3GHR7G requirements.

6.How does Aetrix verify that S3GHR7G is sourced from the original manufacturer or authorized distributors?

All S3GHR7G 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 S3GHR7G meets industry standards.

7.What is the process for return or replacement of S3GHR7G?

All S3GHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S3GHR7G, 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 S3GHR7G part is unused and in its original packaging.

Return procedure for S3GHR7G:

1.Submit a request within 90 days.

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

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