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

Taiwan Semiconductor Corporation S3GH

Name: S3GH
Brand: Taiwan Semiconductor Corporation
SKU: S3GH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S3GH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S3GH.pdf

Description:: DIODE GEN PURP 400V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

S3GH from Taiwan Semiconductor is a surface-mount general-purpose silicon rectifier diode with 400 V repetitive peak reverse voltage (V_RRM), 3 A average forward current (I_F), and 100 A non-repetitive surge capability (I_FSM), designed for DC-DC converters and automotive lighting circuits.

For engineers reviewing the S3GH datasheet, S3GH pinout, S3GH application, or S3GH equivalent, key selection criteria include its DO-214AB (SMC) package, 1.15 V max forward voltage at 3 A, 1500 ns reverse recovery time, AEC-Q101 qualification, and moisture sensitivity level 1 compliance.

Technical Context

The S3GH operates as a single-die, unidirectional silicon junction rectifier with glass passivated chip construction, enabling stable performance across -55°C to +150°C junction temperature range. Its thermal resistance from junction-to-lead is 13°C/W, supporting high-power dissipation in compact layouts.

Electrical behavior is defined by a typical junction capacitance of 60 pF at 1 MHz and 4 V reverse bias, and reverse leakage of ≤10 µA at 25°C - critical for snubber and low-leakage DC-DC applications where switching loss and standby current matter.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse blocking voltage before breakdown; defines usable input voltage range in AC/DC or flyback designs
I_F	3 A - continuous average forward current rating; sets minimum heatsinking and trace width requirements
I_FSM	100 A (8.3 ms) - surge withstand capability; enables robustness against inrush and transient overloads
V_F	≤1.15 V @ 3 A, 25°C - low conduction loss improves efficiency in high-current rectification stages
t_rr	1500 ns - reverse recovery time; impacts switching losses and EMI in medium-frequency SMPS
R_θJL	13 °C/W - junction-to-lead thermal resistance; allows direct PCB copper pour thermal coupling without external heatsink
MSL	Level 1 per J-STD-020 - no floor life limitation; supports standard reflow without dry pack or baking

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (lead 1)	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center tap or switch node return)
Cathode (lead 2)	Forward current exit / reverse blocking terminal	Connected to output rail or filter capacitor positive; cathode band marks this terminal physically

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood lighting and body control modules
Glass passivated junction	Enhanced surface stability and humidity resistance vs. epoxy-passivated alternatives - improves long-term leakage performance in humid environments
Low V_F and high I_FSM	Enables compact, high-efficiency 3 A rectification with margin for 10× surge events - reduces need for parallel devices
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS directives - supports green manufacturing and export compliance without material waivers

Applications

DC–DC Converter	Automotive Lighting
Use Scenario: Secondary-side rectification in isolated 12 V–48 V buck-boost or flyback converters powering infotainment systems. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 1.15 V V_F minimizes conduction loss at 3 A load; 100 A I_FSM handles startup surges without derating.	Use Scenario: LED headlamp driver output stage in 12 V/24 V vehicle platforms. IC Role / Device Role / Timing Role: Output rectifier and freewheeling path in constant-current LED drivers with PWM dimming. Use Value: AEC-Q101 qualification ensures operation across -40°C to +125°C ambient; MSL Level 1 simplifies SMT assembly.
Snubber Circuit	General Purpose Rectification
Use Scenario: RC snubber across MOSFETs or IGBTs in motor drive inverters to suppress voltage spikes. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during switching transitions. Use Value: 1500 ns t_rr provides predictable clamping timing; 400 V V_RRM accommodates 300 V bus with safety margin.	Use Scenario: Input bridge or output rectification in industrial power supplies and battery chargers. IC Role / Device Role / Timing Role: General-purpose unidirectional current flow control in AC line-fed or DC-fed topologies. Use Value: DO-214AB package enables automated placement; 13°C/W R_θJL allows direct thermal coupling to copper pour for passive cooling.

DC–DC Converter

Automotive Lighting

Use Scenario: Secondary-side rectification in isolated 12 V–48 V buck-boost or flyback converters powering infotainment systems.

IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary into regulated DC output.

Use Value: 1.15 V V_F minimizes conduction loss at 3 A load; 100 A I_FSM handles startup surges without derating.

Use Scenario: LED headlamp driver output stage in 12 V/24 V vehicle platforms.

IC Role / Device Role / Timing Role: Output rectifier and freewheeling path in constant-current LED drivers with PWM dimming.

Use Value: AEC-Q101 qualification ensures operation across -40°C to +125°C ambient; MSL Level 1 simplifies SMT assembly.

Snubber Circuit

General Purpose Rectification

Use Scenario: RC snubber across MOSFETs or IGBTs in motor drive inverters to suppress voltage spikes.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during switching transitions.

Use Value: 1500 ns t_rr provides predictable clamping timing; 400 V V_RRM accommodates 300 V bus with safety margin.

Use Scenario: Input bridge or output rectification in industrial power supplies and battery chargers.

IC Role / Device Role / Timing Role: General-purpose unidirectional current flow control in AC line-fed or DC-fed topologies.

Use Value: DO-214AB package enables automated placement; 13°C/W R_θJL allows direct thermal coupling to copper pour for passive cooling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04S	400 V V_RRM, 3 A I_F, but faster t_rr = 75 ns; higher V_F = 1.3 V @ 3 A	Better for high-frequency (>100 kHz) SMPS where recovery loss dominates; less efficient at high DC load	Choose STTH3L04S when minimizing switching loss outweighs conduction loss; verify layout for higher V_F-induced heating
ON Semi MUR340	400 V V_RRM, 3 A I_F, t_rr = 50 ns, V_F = 1.3 V; not AEC-Q101 qualified	Preferred for commercial/industrial SMPS; unsuitable for automotive due to missing qualification	Select MUR340 only for non-automotive designs requiring ultrafast recovery; confirm system-level reliability testing if used outside spec

Compared with STTH3L04S and MUR340, the S3GH trades speed for lower forward drop and automotive qualification - making it optimal for cost-sensitive, thermally constrained, and automotive-compliant 3 A rectification where 1.5 µs recovery is acceptable.

Availability

S3GH is available at Aetrix Electronics and suitable for DC–DC converters, automotive lighting systems, and snubber circuits requiring stable component supply, AEC-Q101 compliance, and DO-214AB packaging.

Supply support for S3GH 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 automotive, industrial, and consumer markets since 1979.

The S3GH belongs to TSC's S3xH family of AEC-Q101-qualified surface-mount rectifiers engineered for high-reliability automotive power conversion and robust general-purpose rectification in harsh environments.

FAQ

What is the maximum junction temperature rating for the S3GH?

The S3GH has a maximum junction temperature (T_J) rating of +150°C, with an operating range from -55°C to +150°C. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial power supplies. The S3GH's thermal design must maintain junction temperature below this limit using its 13°C/W junction-to-lead resistance and appropriate PCB copper area.

Is the S3GH pin-compatible with other devices in the S3xH series?

Yes, all S3xH series devices - including S3AH, S3BH, S3DH, S3GH, S3JH, S3KH, and S3MH - share identical DO-214AB (SMC) package dimensions and pinout. The S3GH uses the same anode/cathode lead configuration and cathode band marking as other members, enabling board-level voltage-scaling swaps without layout changes.

Does the S3GH meet automotive reliability standards?

Yes, the S3GH is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress test (UHAST). This certification confirms suitability for automotive applications such as lighting, body electronics, and powertrain auxiliary systems where long-term reliability under thermal and mechanical stress is required.

What is the reverse leakage current specification for the S3GH at elevated temperature?

The S3GH exhibits ≤250 µA reverse leakage current (I_R) at rated V_R and 125°C junction temperature, per its electrical specifications table. At 25°C, leakage is ≤10 µA. This temperature-dependent behavior is critical for snubber and standby-loss-sensitive designs, and the S3GH's glass passivation helps stabilize leakage across its full operating range.

Can the S3GH be used in high-frequency switching applications?

The S3GH has a reverse recovery time (t_rr) of 1500 ns, making it suitable for medium-frequency applications up to ~50–100 kHz, such as automotive DC–DC converters and industrial power supplies. For frequencies above 100 kHz where recovery loss dominates, faster alternatives like STTH3L04S (75 ns) may be preferred - but the S3GH remains appropriate where conduction loss and cost are prioritized over ultrafast recovery.

S3GH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: 10 µA @ 400 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

S3GH FAQ

1.How can I place an order for S3GH through Aetrix?

Please submit a Request for Quotation (RFQ) for S3GH 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 S3GH reliable?

The price and inventory of S3GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3GH is usually 5 days.

3.What payment methods are accepted for S3GH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3GH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S3GH?

S3GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S3GH 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 S3GH?

For technical support, including S3GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3GH requirements.

6.How does Aetrix verify that S3GH is sourced from the original manufacturer or authorized distributors?

All S3GH 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 S3GH meets industry standards.

7.What is the process for return or replacement of S3GH?

All S3GH units undergo pre-shipment inspection (PSI). If there is an issue with S3GH, 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 S3GH part is unused and in its original packaging.

Return procedure for S3GH:

1.Submit a request within 90 days.

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

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