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 S2G R5G

Name: S2G R5G
Brand: Taiwan Semiconductor Corporation
SKU: S2G R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: S2G R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: S2G R5G.pdf

Description:: DIODE GEN PURP 400V 2A DO214AA

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,660

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

Product details

Overview

S2G R5G from Taiwan Semiconductor is a 2 A, 400 V repetitive peak reverse voltage (V_RRM) standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.15 V max forward voltage at 2 A, 50 A surge capability, and 150 °C maximum junction temperature - used in AC/DC front-end rectification for compact SMPS and LED drivers.

For engineers reviewing the S2G R5G datasheet, S2G R5G pinout, S2G R5G application, or S2G R5G equivalent, key selection criteria include verified V_RRM = 400 V, I_F = 2 A continuous rating, trr = 1500 ns recovery time, moisture sensitivity level 1 compliance, and DO-214AA mechanical compatibility with automated SMT placement.

Technical Context

This standard recovery rectifier uses a glass-passivated single-die PN junction optimized for cost-sensitive, medium-voltage DC power conversion where fast recovery is not required. Its 1500 ns reverse recovery time and 30 pF junction capacitance reflect trade-offs favoring low conduction loss over switching speed.

Thermal performance is defined by R_θJL = 16 °C/W and R_θJA = 53 °C/W, supporting 2 A continuous operation up to 75 °C ambient when mounted on 1-inch² copper pad - consistent with SMB package thermal limits and JEDEC JESD201 Class 2 whisker resistance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports input rectification from 280 V_RMS AC lines (e.g., universal 85–265 VAC SMPS)
I_F	2 A continuous - rated for sustained conduction in 15–30 W adapter and lighting power stages
V_F (max)	1.15 V @ 2 A, 25°C - determines conduction loss of ~2.3 W at full load, impacting thermal design
I_FSM	50 A @ 8.3 ms - withstands cold-start surges in offline converters without failure
trr	1500 ns - limits usable switching frequency to ≤50 kHz in hard-switched topologies
T_J(max)	150 °C - enables operation in enclosed, thermally constrained environments like LED drivers
C_J	30 pF @ 4 V - contributes to EMI generation during turn-off; requires snubber consideration above 25 kHz

Pinout & Package

Package: DO-214AA (SMB), surface-mount, cathode-indicated by band, matte tin-plated leads, UL 94V-0 molding compound, 0.090 g typical weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Positive input terminal for forward conduction	Connected to AC line or transformer secondary; must handle full surge current and thermal stress
Cathode	Negative output terminal; marked by band	Routes rectified DC to bulk capacitor; polarity reversal causes immediate device failure

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable long-term reliability under humidity and thermal cycling per J-STD-020 Level 1
Low V_F (1.15 V max)	Reduces conduction loss by ~15% vs. comparable 400 V rectifiers with V_F > 1.3 V
DO-214AA (SMB) footprint	Direct drop-in replacement for industry-standard SMB rectifiers without PCB redesign
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing
50 A I_FSM	Supports high-energy inrush limiting in offline power supplies without derating

Applications

LED Lighting Driver	USB-C Adapter Secondary Rectification
Use Scenario: Rectifying 12–24 VAC transformer output in constant-current LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Primary unidirectional power conversion element converting AC to pulsating DC before smoothing. Use Value: 400 V V_RRM provides 2× safety margin over 120 VAC-derived peaks; 2 A rating matches typical 15–20 W driver loads.	Use Scenario: Output rectification in 30–45 W USB-C PD adapters using flyback topology with synchronous or diode-based secondary. IC Role / Device Role / Timing Role: Discrete power diode conducting during transformer reset phase to deliver regulated DC output. Use Value: 1.15 V V_F minimizes output-stage loss; SMB package enables high-density layout with automated assembly.
Industrial AC/DC Power Module	AC Input Bridge Leg (Half-Bridge)
Use Scenario: Front-end rectification in DIN-rail-mounted 24 VDC industrial power supplies accepting 85–305 VAC input. IC Role / Device Role / Timing Role: Single-diode element in discrete bridge configuration or as freewheeling path in PFC boost diodes. Use Value: 150 °C T_J(max) allows operation in high-ambient enclosures; 50 A I_FSM handles line transients per IEC 61000-4-5.	Use Scenario: One leg of a discrete 4-diode bridge rectifier for 115/230 VAC input in cost-optimized consumer power supplies. IC Role / Device Role / Timing Role: Anode-cathode pair conducting alternate half-cycles to generate full-wave DC. Use Value: DO-214AA footprint ensures mechanical compatibility with legacy SMB bridges; 400 V rating covers 230 VAC + 20% tolerance.

LED Lighting Driver

USB-C Adapter Secondary Rectification

Use Scenario: Rectifying 12–24 VAC transformer output in constant-current LED drivers for commercial downlights.

IC Role / Device Role / Timing Role: Primary unidirectional power conversion element converting AC to pulsating DC before smoothing.

Use Value: 400 V V_RRM provides 2× safety margin over 120 VAC-derived peaks; 2 A rating matches typical 15–20 W driver loads.

Use Scenario: Output rectification in 30–45 W USB-C PD adapters using flyback topology with synchronous or diode-based secondary.

IC Role / Device Role / Timing Role: Discrete power diode conducting during transformer reset phase to deliver regulated DC output.

Use Value: 1.15 V V_F minimizes output-stage loss; SMB package enables high-density layout with automated assembly.

Industrial AC/DC Power Module

AC Input Bridge Leg (Half-Bridge)

Use Scenario: Front-end rectification in DIN-rail-mounted 24 VDC industrial power supplies accepting 85–305 VAC input.

IC Role / Device Role / Timing Role: Single-diode element in discrete bridge configuration or as freewheeling path in PFC boost diodes.

Use Value: 150 °C T_J(max) allows operation in high-ambient enclosures; 50 A I_FSM handles line transients per IEC 61000-4-5.

Use Scenario: One leg of a discrete 4-diode bridge rectifier for 115/230 VAC input in cost-optimized consumer power supplies.

IC Role / Device Role / Timing Role: Anode-cathode pair conducting alternate half-cycles to generate full-wave DC.

Use Value: DO-214AA footprint ensures mechanical compatibility with legacy SMB bridges; 400 V rating covers 230 VAC + 20% tolerance.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR240	Ultrafast recovery (trr = 50 ns), higher V_F (1.3 V), same DO-214AA package	Better suited for high-frequency flyback or resonant converters requiring <100 ns trr	Select MUR240 only if trr < 100 ns is required; otherwise S2G R5G offers lower conduction loss at lower cost
Vishay VS-2EYH04-M3	Same V_RRM (400 V), identical I_F/I_FSM, but trr = 2000 ns and V_F = 1.2 V (max)	Marginally slower recovery and higher forward drop; acceptable where thermal headroom exists	VS-2EYH04-M3 is viable where 1500 ns trr is insufficiently slow to cause EMI issues and 0.05 V higher V_F is tolerable

Compared with MUR240 and VS-2EYH04-M3, the S2G R5G delivers optimal balance of conduction efficiency (1.15 V V_F), ruggedness (50 A I_FSM), and cost for 25–50 kHz SMPS designs - making it preferred for lighting, adapters, and industrial AC/DC where ultrafast recovery is unnecessary.

Availability

S2G R5G is available at Aetrix Electronics and suitable for LED lighting drivers, USB-C adapters, and industrial AC/DC power modules requiring stable component supply with full traceability and volume scalability.

Supply support for S2G R5G 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and ISO 14001 certification.

The S2G R5G belongs to TSC's S2x standard recovery rectifier family, designed specifically for cost-effective, high-reliability AC/DC front-end rectification in consumer, lighting, and industrial power supplies.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S2G R5G?

The S2G R5G has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, as confirmed in the Absolute Maximum Ratings table across all versions of the S2A–S2V datasheet. This rating is validated under standard test conditions (T_A = 25°C) and defines the highest reverse voltage the S2G R5G can block continuously without breakdown. It supports use in 230 VAC mains-derived circuits with appropriate safety margins.

Does the S2G R5G have a halogen-free construction?

Yes, the S2G R5G is halogen-free in accordance with IEC 61249-2-21, as explicitly stated in the FEATURES section of the official datasheet. The molding compound contains no brominated or chlorinated flame retardants, and the device is also RoHS compliant. This makes the S2G R5G suitable for environmentally regulated markets and green manufacturing programs.

What is the reverse recovery time (trr) of the S2G R5G, and how does it affect circuit design?

The S2G R5G has a reverse recovery time (trr) of 1500 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This relatively long trr limits its use to switching frequencies below ~50 kHz in hard-switched topologies. Designers must account for associated switching losses and potential EMI; snubbers may be needed in higher-frequency flyback or forward converters.

Is the S2G R5G compatible with automated SMT assembly processes?

Yes, the S2G R5G is explicitly designed for automated placement, as noted in its FEATURES list. Its DO-214AA (SMB) package meets J-STD-002 for solderability, has matte tin-plated leads, and carries moisture sensitivity level 1 per J-STD-020 - meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to reflow. This ensures robust, high-yield SMT integration.

What thermal resistance values apply to the S2G R5G in standard mounting conditions?

The S2G R5G has a junction-to-lead thermal resistance (R_θJL) of 16 °C/W and a junction-to-ambient thermal resistance (R_θJA) of 53 °C/W, measured on a standard FR-4 board with 1-inch² copper pad. These values define thermal limits for 2 A continuous operation: at 75°C ambient, junction temperature remains within the 150°C maximum when properly heatsinked via the lead frame.

S2G R5G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

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

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 2 A

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

Reverse Recovery Time (trr):: 1.5 µs

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

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

S2G R5G FAQ

1.How can I place an order for S2G R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for S2G R5G 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 S2G R5G reliable?

The price and inventory of S2G R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2G R5G is usually 5 days.

3.What payment methods are accepted for S2G R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2G R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S2G R5G?

S2G R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S2G R5G 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 S2G R5G?

For technical support, including S2G R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2G R5G requirements.

6.How does Aetrix verify that S2G R5G is sourced from the original manufacturer or authorized distributors?

All S2G R5G 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 S2G R5G meets industry standards.

7.What is the process for return or replacement of S2G R5G?

All S2G R5G units undergo pre-shipment inspection (PSI). If there is an issue with S2G R5G, 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 S2G R5G part is unused and in its original packaging.

Return procedure for S2G R5G:

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…