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 S2A R5G

Name: S2A R5G
Brand: Taiwan Semiconductor Corporation
SKU: S2A R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: S2A R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: S2A R5G.pdf

Description:: DIODE GEN PURP 50V 2A DO214AA

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:25

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

Product details

Overview

S2A R5G from Taiwan Semiconductor is a 2 A, 50 V standard surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring glass-passivated junction, 1.15 V max forward voltage at 2 A, 50 A surge capability, and 150 °C max junction temperature - used in AC/DC front-end rectification for compact SMPS and LED lighting adapters.

For engineers reviewing the S2A R5G datasheet, S2A R5G pinout, S2A R5G application, or S2A R5G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), forward current rating (2 A), thermal resistance (R_θJA = 53 °C/W), moisture sensitivity level (MSL 1), and RoHS/halogen-free compliance per IEC 61249-2-21.

Technical Context

The S2A R5G is a single-die, standard recovery rectifier with non-controlled unidirectional conduction. Its 1500 ns reverse recovery time (trr) and 30 pF junction capacitance reflect trade-offs favoring low cost and robust surge handling over high-frequency switching efficiency.

Designed for line-frequency and low-kHz rectification, it operates across -55 °C to +150 °C junction range, with thermal performance defined by R_θJL = 16 °C/W and R_θJA = 53 °C/W under standard SMB PCB mounting conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse voltage before breakdown; defines safe AC input voltage headroom in bridge or single-phase rectifiers.
I_F	2 A - Continuous average forward current; sets maximum DC output capability in linearly derated operation up to 150 °C.
I_FSM	50 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush tolerance during cold-start of power supplies.
V_F	≤1.15 V @ 2 A, 25 °C - Forward voltage drop directly impacts conduction loss and thermal load in high-duty-cycle applications.
R_θJA	53 °C/W - Junction-to-ambient thermal resistance on standard FR-4 PCB; determines required copper area and airflow for thermal management.
t_rr	1500 ns - Reverse recovery time; limits usable frequency range and contributes to switching loss in quasi-resonant topologies.
C_J	30 pF @ 1 MHz, 4 V - Junction capacitance affects EMI generation and snubber design in high-dV/dt environments.

Pinout & Package

Package: DO-214AA (SMB), surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.090 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to AC input or transformer secondary; must withstand full surge current and thermal cycling.
Cathode	Forward current exit terminal	Connected to bulk capacitor or downstream converter; marked by visible band; carries full DC output current.

Key Features

Feature	Design Value
Glass-passivated junction	Enhances long-term reliability and humidity resistance without hermetic sealing; meets MSL 1 per J-STD-020.
Low forward voltage (≤1.15 V)	Reduces conduction loss and heatsink requirements in space-constrained 2 A adapter designs.
50 A surge rating	Enables use in universal-input SMPS without external inrush limiting components.
Halogen-free & RoHS compliant	Fulfills environmental compliance for CE-marked consumer and industrial end equipment.

Applications

LED Lighting Driver	USB-C Power Adapter
Use Scenario: Rectifying 50/60 Hz or 20–100 kHz AC input in isolated flyback-based LED drivers for commercial downlights. IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC line to bulk DC; operates in continuous conduction mode with low thermal stress. Use Value: 2 A rating and 50 V V_RRM match typical 12–24 V output, 15–30 W LED driver power levels while maintaining margin against line surges.	Use Scenario: Input-stage rectification in compact 30–65 W USB-C PD adapters with universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Single-phase bridge leg component; handles 2 A average current at 50/60 Hz with minimal forward loss. Use Value: Glass passivation and MSL 1 rating support automated SMT assembly and reflow reliability; 50 A I_FSM absorbs cold-start inrush without derating.
Industrial Control Power Supply	AC-DC Wall Plug Module
Use Scenario: Auxiliary power rail generation in PLC I/O modules requiring stable 5 V or 12 V DC from 24 VAC or 120 VAC inputs. IC Role / Device Role / Timing Role: Low-cost, rugged rectifier in half-wave or full-wave configurations; operates continuously at ambient temperatures up to 70 °C. Use Value: R_θJA = 53 °C/W enables operation without forced air cooling on standard 2-layer PCBs; 150 °C T_JMAX ensures margin under transient overloads.	Use Scenario: Embedded AC-DC conversion in white-goods control boards (e.g., washing machine mainboard, HVAC controller). IC Role / Device Role / Timing Role: Input rectifier feeding offline PWM controller IC; exposed to line transients and repeated thermal cycling. Use Value: Matte tin plating and JESD 201 Class 2 whisker resistance ensure solder joint integrity over 10+ year field life; halogen-free compound meets appliance safety standards.

LED Lighting Driver

USB-C Power Adapter

Use Scenario: Rectifying 50/60 Hz or 20–100 kHz AC input in isolated flyback-based LED drivers for commercial downlights.

IC Role / Device Role / Timing Role: Primary-side uncontrolled rectifier converting AC line to bulk DC; operates in continuous conduction mode with low thermal stress.

Use Value: 2 A rating and 50 V V_RRM match typical 12–24 V output, 15–30 W LED driver power levels while maintaining margin against line surges.

Use Scenario: Input-stage rectification in compact 30–65 W USB-C PD adapters with universal AC input (90–264 VAC).

IC Role / Device Role / Timing Role: Single-phase bridge leg component; handles 2 A average current at 50/60 Hz with minimal forward loss.

Use Value: Glass passivation and MSL 1 rating support automated SMT assembly and reflow reliability; 50 A I_FSM absorbs cold-start inrush without derating.

Industrial Control Power Supply

AC-DC Wall Plug Module

Use Scenario: Auxiliary power rail generation in PLC I/O modules requiring stable 5 V or 12 V DC from 24 VAC or 120 VAC inputs.

IC Role / Device Role / Timing Role: Low-cost, rugged rectifier in half-wave or full-wave configurations; operates continuously at ambient temperatures up to 70 °C.

Use Value: R_θJA = 53 °C/W enables operation without forced air cooling on standard 2-layer PCBs; 150 °C T_JMAX ensures margin under transient overloads.

Use Scenario: Embedded AC-DC conversion in white-goods control boards (e.g., washing machine mainboard, HVAC controller).

IC Role / Device Role / Timing Role: Input rectifier feeding offline PWM controller IC; exposed to line transients and repeated thermal cycling.

Use Value: Matte tin plating and JESD 201 Class 2 whisker resistance ensure solder joint integrity over 10+ year field life; halogen-free compound meets appliance safety standards.

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 MUR220	Ultrafast recovery (t_rr = 35 ns), higher V_RRM (200 V), same I_F (2 A), DO-214AA package	Better suited for higher-frequency PFC or resonant converters where trr < 100 ns is required	Select MUR220 only if reducing switching loss or EMI at >50 kHz is critical; not drop-in due to different V_RRM and trr behavior.
Vishay VS-2EYH01-M3	Standard recovery (t_rr ≈ 1500 ns), identical V_RRM (50 V), same I_F (2 A), DO-214AA, halogen-free	Direct functional match with comparable thermal and surge specs; slightly higher V_F (1.25 V max)	VS-2EYH01-M3 offers same system-level performance in 50 V SMPS and lighting applications with verified supply chain continuity.

Compared with MUR220 and VS-2EYH01-M3, the S2A R5G delivers optimal cost-performance balance for line-frequency rectification where ultrafast recovery is unnecessary, while maintaining full compatibility with SMB footprint, thermal design, and regulatory compliance requirements.

Availability

S2A R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting adapters, and industrial control power supplies requiring stable component supply, consistent MSL 1 handling, and long-term production availability.

Supply support for S2A 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global power, automotive, and industrial markets since 1979.

The S2A R5G belongs to TSC's S2x series of standard recovery rectifiers designed specifically for cost-sensitive, high-volume AC/DC front-end applications where reliability, manufacturability, and regulatory compliance outweigh ultrafast switching needs.

FAQ

What is the maximum junction temperature rating for the S2A R5G?

The S2A R5G has a maximum junction temperature (T_JMAX) of +150 °C, enabling reliable operation in enclosed or thermally constrained environments such as sealed LED drivers and wall plug adapters. This rating allows for full 2 A forward current derating up to 150 °C ambient when mounted on appropriate PCB copper area, and is validated per JEDEC test conditions in the official TSC datasheet revision N2102.

Is the S2A R5G RoHS and halogen-free compliant?

Yes, the S2A R5G is fully RoHS compliant and halogen-free per IEC 61249-2-21, using molding compound and lead finish that meet both environmental directives. This compliance is confirmed in the "Features" section of the TSC S2A–S2V datasheet (Version N2102) and verified through TSC's material declarations - essential for CE marking and export to EU, Japan, and other regulated markets.

What does the "R5G" suffix indicate in S2A R5G?

The "R5G" suffix in S2A R5G is Taiwan Semiconductor's internal reel and packaging code, indicating tape-and-reel packaging with 3,000 units per reel, green compound (G), and specific date/factory coding per TSC's ordering nomenclature. It does not alter electrical or thermal specifications - all S2A devices share identical V_RRM = 50 V, I_F = 2 A, and DO-214AA package characteristics regardless of suffix.

Can the S2A R5G replace a 1N4001 in a new design?

The S2A R5G can functionally replace the 1N4001 in most 50 V, 1 A applications, but with key differences: S2A R5G supports 2 A average current and 50 A surge versus 1 A/30 A for 1N4001, and uses DO-214AA (SMB) instead of DO-41. PCB layout must be updated for the larger SMB footprint, and thermal design should account for its lower R_θJA (53 °C/W vs ~65 °C/W for 1N4001).

What is the reverse recovery time (t_rr) of the S2A R5G and how is it measured?

The S2A R5G 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 per the TSC datasheet. This value reflects its standard recovery behavior and is relevant for line-frequency rectification; it is not suitable for high-frequency (>20 kHz) hard-switched topologies where faster t_rr is required to limit switching loss.

S2A 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):: 50 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 @ 50 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

S2A R5G FAQ

1.How can I place an order for S2A R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for S2A 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 S2A R5G reliable?

The price and inventory of S2A R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2A R5G is usually 5 days.

3.What payment methods are accepted for S2A R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2A R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S2A R5G?

S2A R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S2A 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 S2A R5G?

For technical support, including S2A R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2A R5G requirements.

6.How does Aetrix verify that S2A R5G is sourced from the original manufacturer or authorized distributors?

All S2A 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 S2A R5G meets industry standards.

7.What is the process for return or replacement of S2A R5G?

All S2A R5G units undergo pre-shipment inspection (PSI). If there is an issue with S2A 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 S2A R5G part is unused and in its original packaging.

Return procedure for S2A 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…