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

Taiwan Semiconductor Corporation S2GA

Name: S2GA
Brand: Taiwan Semiconductor Corporation
SKU: S2GA
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S2GA

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: S2GA.pdf

Description:: DIODE GEN PURP 400V 1.5A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:15,000

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Product details

Overview

S2GA from Taiwan Semiconductor is a 1.5A, 400V surface-mount general-purpose rectifier diode in DO-214AC (SMA) package, featuring low forward voltage drop (≤1.1V @ 1.5A), high surge capability (50A), and 150°C junction rating - used in DC-DC converters, snubber networks, and lighting power supplies.

For engineers reviewing the S2GA datasheet, S2GA pinout, S2GA application, or S2GA equivalent, key selection criteria include peak reverse voltage (400V), forward current rating (1.5A), thermal resistance (R_θJL = 16°C/W), reverse recovery time (1500ns), and RoHS/halogen-free compliance for industrial and lighting designs.

Technical Context

The S2GA is a single-die, glass-passivated silicon PN junction rectifier optimized for switching-mode power conversion. Its 400V V_RRM, 50A I_FSM, and 1500ns trr support reliable operation in repetitive surge and moderate-frequency rectification up to ~20kHz.

Thermal performance is defined by R_θJL = 16°C/W and R_θJA = 53°C/W, enabling 1.5A continuous conduction on standard FR-4 PCBs with minimal copper area. Polarity is marked by cathode band; leads are matte tin-plated per J-STD-002.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum non-repetitive reverse voltage before breakdown; defines safe operating range in 400V-rated DC-DC or inverter outputs.
I_F	1.5 A - Continuous average forward current at T_A = 75°C; determines minimum trace width and heatsinking in 12–48V power rails.
I_FSM	50 A - Peak non-repetitive surge current (8.3ms half-sine); enables robustness against line transients and startup inrush.
V_F	≤1.1 V @ 1.5A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in high-duty-cycle applications.
t_rr	1500 ns - Reverse recovery time limits usable frequency in hard-switched topologies; suitable for ≤20kHz SMPS.
R_θJL	16 °C/W - Junction-to-lead thermal resistance; allows direct thermal coupling to copper pour or heatsink via cathode/anode pads.
Junction Temp	−55°C to +150°C - Operating range supports automotive under-hood and industrial ambient environments without derating.

Pinout & Package

Package: DO-214AC (SMA), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads, UL 94V-0 molding compound, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of rectified path; requires adequate copper area for thermal dissipation.
Cathode	Forward current exit / reverse-blocking terminal	Marked by band; serves as primary thermal path to PCB; must be routed to ground or return plane for optimal cooling.

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and humidity resistance in unsealed industrial enclosures.
Low V_F (≤1.1V)	Reduces conduction loss by ~15% vs. standard 1N4007 at 1.5A, lowering thermal stress in compact layouts.
High I_FSM (50A)	Withstands 10× rated current surges, eliminating need for external fusing in many 24–48V input stages.
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for global electronics manufacturing compliance.
Automated placement compatible	DO-214AC footprint and lead geometry support high-yield pick-and-place at >25,000 UPH.

Applications

DC-DC Converter Input Rectification	Snubber Network Diode
Use Scenario: Rectifying 36–48V DC input in isolated flyback or forward converters powering PoE devices. IC Role / Device Role / Timing Role: Primary-side unidirectional current valve converting pulsating DC to smoothed rail; handles 1.5A average load with 50A surge tolerance. Use Value: Low V_F minimizes power loss during continuous conduction mode; 400V V_RRM provides 2× margin over nominal 48V input with transient headroom.	Use Scenario: Clamping voltage spikes across MOSFET drains in motor drive half-bridges or SMPS switches. IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing inductive kickback energy during switch turn-off. Use Value: 1500ns t_rr ensures clean energy transfer without oscillation; 50A I_FSM accommodates repeated high-energy transients.
LED Driver Secondary Rectification	General-Purpose AC Line Rectification
Use Scenario: Output rectification in constant-current LED drivers for streetlight or industrial luminaires. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode delivering regulated DC to LED strings; operates continuously at elevated ambient temperatures. Use Value: 150°C T_JMAX and R_θJL = 16°C/W enable stable operation without forced air, even in sealed IP67 housings.	Use Scenario: Bridge rectifier leg in low-power AC-DC adapters (<15W) for consumer electronics. IC Role / Device Role / Timing Role: General-purpose rectifier replacing legacy 1N400x series where space, thermal, or surge performance is critical. Use Value: DO-214AC footprint reduces board area by 40% vs. DO-41; RoHS/halogen-free status meets modern compliance requirements.

DC-DC Converter Input Rectification

Snubber Network Diode

Use Scenario: Rectifying 36–48V DC input in isolated flyback or forward converters powering PoE devices.

IC Role / Device Role / Timing Role: Primary-side unidirectional current valve converting pulsating DC to smoothed rail; handles 1.5A average load with 50A surge tolerance.

Use Value: Low V_F minimizes power loss during continuous conduction mode; 400V V_RRM provides 2× margin over nominal 48V input with transient headroom.

Use Scenario: Clamping voltage spikes across MOSFET drains in motor drive half-bridges or SMPS switches.

IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing inductive kickback energy during switch turn-off.

Use Value: 1500ns t_rr ensures clean energy transfer without oscillation; 50A I_FSM accommodates repeated high-energy transients.

LED Driver Secondary Rectification

General-Purpose AC Line Rectification

Use Scenario: Output rectification in constant-current LED drivers for streetlight or industrial luminaires.

IC Role / Device Role / Timing Role: Secondary-side freewheeling diode delivering regulated DC to LED strings; operates continuously at elevated ambient temperatures.

Use Value: 150°C T_JMAX and R_θJL = 16°C/W enable stable operation without forced air, even in sealed IP67 housings.

Use Scenario: Bridge rectifier leg in low-power AC-DC adapters (<15W) for consumer electronics.

IC Role / Device Role / Timing Role: General-purpose rectifier replacing legacy 1N400x series where space, thermal, or surge performance is critical.

Use Value: DO-214AC footprint reduces board area by 40% vs. DO-41; RoHS/halogen-free status meets modern compliance requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR160	600V V_RRM, 1A I_F, 75ns t_rr, TO-220 package	Higher voltage rating but lower current and faster recovery; requires through-hole mounting and heatsink.	Choose for higher-voltage, lower-current, or faster-switching needs where board space and thermal mass allow TO-220.
Vishay VS-1N4937TR	100V V_RRM, 1A I_F, 200ns t_rr, DO-41 package	Lower voltage and current rating; slower surge capability (30A I_FSM) and higher V_F (~1.3V).	Acceptable only in low-voltage, low-power legacy replacements where 400V margin is unnecessary.

Compared with MUR160 and VS-1N4937TR, the S2GA offers balanced 400V/1.5A/50A performance in a compact, surface-mount DO-214AC package - making it optimal for space-constrained, medium-power industrial and lighting applications requiring RoHS compliance and automated assembly.

Availability

S2GA is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, and LED driver secondary rectification requiring stable component supply, full traceability, and lifecycle continuity.

Supply support for S2GA 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 industrial, computing, and consumer markets since 1979.

The S2GA belongs to TSC's S2xA family of surface-mount rectifiers designed specifically for cost-sensitive, high-volume power conversion applications demanding reliability, thermal efficiency, and automated manufacturability.

FAQ

What is the peak repetitive reverse voltage rating for the S2GA?

The S2GA has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is explicitly specified in the absolute maximum ratings table for the S2GA variant within the S2AA–S2MA family. It defines the maximum reverse-biased voltage the S2GA can withstand repeatedly without breakdown under normal operating conditions.

Does the S2GA support automated PCB assembly?

Yes, the S2GA supports automated placement. Its DO-214AC (SMA) package, matte tin-plated leads, and standardized footprint meet J-STD-020 moisture sensitivity level 1 and J-STD-002 solderability requirements - enabling reliable high-speed pick-and-place and reflow processing in volume manufacturing.

What is the maximum forward voltage drop of the S2GA at rated current?

The S2GA has a maximum forward voltage drop (V_F) of 1.1 V at 1.5 A forward current and 25°C junction temperature. This value is confirmed in the electrical specifications table and directly impacts conduction losses and thermal design in power circuits using the S2GA.

Can the S2GA replace a 1N4007 in a new design?

The S2GA is not a direct replacement for the 1N4007 due to differing voltage ratings: the 1N4007 is rated for 1000V V_RRM, while the S2GA is rated for 400V. However, the S2GA offers superior surge capability (50A vs. 30A), lower V_F, and surface-mount compatibility - making it suitable where 400V margin suffices and automated assembly is required.

Is the S2GA RoHS and halogen-free compliant?

Yes, the S2GA is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance attributes are explicitly stated in the FEATURES section of the official Taiwan Semiconductor documentation for the S2AA–S2MA family, including the S2GA variant.

S2GA Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1.5A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1.5 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:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

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

S2GA FAQ

1.How can I place an order for S2GA through Aetrix?

Please submit a Request for Quotation (RFQ) for S2GA 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 S2GA reliable?

The price and inventory of S2GA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2GA is usually 5 days.

3.What payment methods are accepted for S2GA?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2GA transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S2GA?

S2GA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S2GA 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 S2GA?

For technical support, including S2GA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2GA requirements.

6.How does Aetrix verify that S2GA is sourced from the original manufacturer or authorized distributors?

All S2GA 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 S2GA meets industry standards.

7.What is the process for return or replacement of S2GA?

All S2GA units undergo pre-shipment inspection (PSI). If there is an issue with S2GA, 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 S2GA part is unused and in its original packaging.

Return procedure for S2GA:

1.Submit a request within 90 days.

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

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