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

Taiwan Semiconductor Corporation RS2A R5G

Name: RS2A R5G
Brand: Taiwan Semiconductor Corporation
SKU: RS2A R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: RS2A R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: RS2A R5G.pdf

Description:: DIODE GEN PURP 50V 2A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:4,321

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Product details

Overview

RS2A R5G from Taiwan Semiconductor is a 2 A, 50 V fast recovery surface-mount rectifier diode in DO-214AA (SMB) package, featuring 150 ns reverse recovery time, 1.3 V max forward voltage at 2 A, and 5 µA max reverse leakage at 25°C. It serves as primary-side AC/DC rectification in compact offline SMPS and LED drivers.

For engineers reviewing the RS2A R5G datasheet, RS2A R5G pinout, RS2A R5G application, or RS2A R5G equivalent, key selection criteria include repetitive peak reverse voltage (50 V), thermal resistance (R_θJA = 55 °C/W), junction temperature range (–55 to +175 °C), and JEDEC-compliant SMB packaging for automated SMT assembly.

Technical Context

This single-die, glass-passivated silicon rectifier uses planar epitaxial construction to achieve fast switching with low stored charge. Its 150 ns trr and 50 A IFSM rating support high-frequency operation in flyback and forward converters without snubber dependency.

The device operates across –55 to +175 °C junction temperature, with moisture sensitivity level 1 (per J-STD-020) and matte tin-plated leads compliant with J-STD-002 solderability. Polarity is marked by a visible cathode band on the molded body.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum non-repetitive reverse voltage the diode blocks reliably in circuit
I_F	2 A continuous - Rated average forward current under specified thermal conditions
t_rr	150 ns - Reverse recovery time enabling efficient operation up to ~500 kHz switching
V_F @ 2 A	≤1.3 V - Forward voltage drop determining conduction loss and thermal load at full rated current
I_R @ 25°C	≤5 µA - Low leakage ensuring minimal standby power loss in high-impedance bias networks
R_θJA	55 °C/W - Junction-to-ambient thermal resistance defining heatsinking requirements on standard FR-4 PCB
Junction temp	–55 to +175 °C - Operating range supporting industrial and automotive under-hood ambient conditions

Pinout & Package

DO-214AA (SMB) surface-mount package with axial lead configuration: anode and cathode terminals formed by the two metallized end caps of the molded plastic body. Cathode identified by a distinct band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Positive input terminal	Connects to AC source or transformer secondary; carries full forward current into load
Cathode	Negative output terminal	Marked by band; connects to bulk capacitor or switching node; defines polarity of rectified output

Key Features

Feature	Design Value
Fast recovery (150 ns)	Enables high-frequency SMPS designs without added snubbers or efficiency penalties from slow turn-off
Glass passivated junction	Provides stable electrical parameters and long-term reliability under humidity and thermal cycling stress
Moisture sensitivity level 1	Eliminates bake requirement before reflow, reducing manufacturing cost and process complexity
Halogen-free & RoHS compliant	Meets global environmental regulations and supports lead-free soldering processes (J-STD-002 qualified)
UL 94V-0 molding compound	Ensures flame retardancy required for safety-critical power supplies and lighting enclosures

Applications

LED Driver Power Stage	USB-C Adapter Primary Rectifier
Use Scenario: High-efficiency constant-current LED driver for commercial downlights operating from universal AC input. IC Role / Device Role / Timing Role: Primary-side bridge rectifier converting AC line to unregulated DC bus prior to PWM-controlled buck converter. Use Value: 150 ns t_rr minimizes switching loss during high-frequency operation; 55 °C/W R_θJA allows direct mounting on 1-oz copper without heatsink.	Use Scenario: Compact 30 W USB-C PD adapter with active clamp flyback topology. IC Role / Device Role / Timing Role: Input rectifier in discrete bridge configuration replacing integrated bridge ICs for cost-sensitive designs. Use Value: 2 A I_F rating supports peak currents up to 50 A surge (IFSM); DO-214AA footprint enables dense layout with minimal board area.
Industrial Sensor Power Supply	Smart Home Gateway AC/DC Stage
Use Scenario: Isolated 5 V/100 mA auxiliary supply powering analog sensor front-ends in factory automation nodes. IC Role / Device Role / Timing Role: Output rectifier in low-power flyback converter delivering regulated DC after transformer isolation. Use Value: ≤5 µA reverse leakage at 25°C ensures negligible standby drain; –55 to +175 °C TJ range supports extended outdoor deployment.	Use Scenario: Dual-output (5 V/12 V) wall-mounted gateway supplying Wi-Fi, Zigbee, and Ethernet subsystems. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in cost-optimized design where MOSFET gate drive complexity is avoided. Use Value: 1.3 V V_F provides predictable conduction loss vs. MOSFET R_DS(on) variation; SMB package allows automated placement alongside other SMT components.

LED Driver Power Stage

USB-C Adapter Primary Rectifier

Use Scenario: High-efficiency constant-current LED driver for commercial downlights operating from universal AC input.

IC Role / Device Role / Timing Role: Primary-side bridge rectifier converting AC line to unregulated DC bus prior to PWM-controlled buck converter.

Use Value: 150 ns t_rr minimizes switching loss during high-frequency operation; 55 °C/W R_θJA allows direct mounting on 1-oz copper without heatsink.

Use Scenario: Compact 30 W USB-C PD adapter with active clamp flyback topology.

IC Role / Device Role / Timing Role: Input rectifier in discrete bridge configuration replacing integrated bridge ICs for cost-sensitive designs.

Use Value: 2 A I_F rating supports peak currents up to 50 A surge (IFSM); DO-214AA footprint enables dense layout with minimal board area.

Industrial Sensor Power Supply

Smart Home Gateway AC/DC Stage

Use Scenario: Isolated 5 V/100 mA auxiliary supply powering analog sensor front-ends in factory automation nodes.

IC Role / Device Role / Timing Role: Output rectifier in low-power flyback converter delivering regulated DC after transformer isolation.

Use Value: ≤5 µA reverse leakage at 25°C ensures negligible standby drain; –55 to +175 °C TJ range supports extended outdoor deployment.

Use Scenario: Dual-output (5 V/12 V) wall-mounted gateway supplying Wi-Fi, Zigbee, and Ethernet subsystems.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement in cost-optimized design where MOSFET gate drive complexity is avoided.

Use Value: 1.3 V V_F provides predictable conduction loss vs. MOSFET R_DS(on) variation; SMB package allows automated placement alongside other SMT components.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR220	200 V V_RRM, 1.25 V V_F @ 2 A, 100 ns t_rr, same DO-214AA package	Higher voltage rating suits 120 VAC-only or higher-ratio flyback designs; faster recovery reduces EMI in >1 MHz topologies	Select when system requires ≥200 V blocking or tighter t_rr tolerance than RS2A R5G provides
Vishay VS-2EY20	200 V V_RRM, 1.15 V V_F @ 2 A, 75 ns t_rr, DO-214AA package	Lower forward drop and faster recovery improve light-load efficiency; optimized for high-frequency adapters	Prefer for ultra-compact, high-efficiency adapters where conduction and switching losses must be minimized simultaneously

Compared with MUR220 and VS-2EY20, RS2A R5G offers lower cost and sufficient performance for 50 V-rated, sub-500 kHz SMPS where strict t_rr or ultra-low V_F are not critical-making it ideal for cost-sensitive industrial and lighting applications requiring proven reliability and JEDEC-standard packaging.

Availability

RS2A R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC/DC adapters requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.

Supply support for RS2A 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200-qualified product lines.

The RS2A R5G belongs to TSC's RS2x fast recovery rectifier family, designed specifically for high-efficiency, space-constrained AC/DC conversion in consumer, industrial, and lighting applications where reliability, thermal robustness, and SMT compatibility are essential.

FAQ

What is the maximum junction temperature rating for RS2A R5G?

The RS2A R5G has a maximum junction temperature (T_J) of +175 °C and a minimum of –55 °C. This wide operating range allows the RS2A R5G to function reliably in high-ambient environments such as enclosed LED fixtures or industrial control cabinets without derating at typical board-level power dissipation levels.

Is RS2A R5G compatible with lead-free reflow soldering processes?

Yes, RS2A R5G features matte tin-plated leads qualified per J-STD-002 for solderability and complies with RoHS and halogen-free standards. Its moisture sensitivity level 1 eliminates pre-reflow baking, making it fully compatible with standard lead-free reflow profiles used in high-volume SMT assembly.

Does RS2A R5G have a defined reverse recovery time, and how is it measured?

Yes, RS2A R5G has a specified reverse recovery time (t_rr) of ≤150 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC test conditions. This value is confirmed in the official Taiwan Semiconductor datasheet Version L2304 and reflects actual device behavior in high-frequency switching circuits.

What does the "R5G" suffix indicate in RS2A R5G?

The "R5G" suffix in RS2A R5G is Taiwan Semiconductor's internal date/batch code-not a voltage or performance variant. The base part RS2A defines the 50 V V_RRM rating; all RS2A-marked units share identical electrical specifications regardless of trailing alphanumeric codes like R5G.

Can RS2A R5G replace a 1N4007 in a new design?

No-RS2A R5G is not a direct replacement for 1N4007. While both are rectifiers, RS2A R5G is a fast recovery diode (150 ns t_rr, 50 V V_RRM) optimized for SMPS, whereas 1N4007 is a general-purpose rectifier (30 µs t_rr, 1000 V V_RRM). Substituting RS2A R5G in a 1N4007 application risks reverse voltage breakdown or excessive leakage unless circuit voltage and timing are revalidated.

RS2A 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:: 1.3 V @ 2 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 150 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 50 V

Capacitance @ Vr, F:: 50pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

RS2A R5G FAQ

1.How can I place an order for RS2A R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for RS2A 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 RS2A R5G reliable?

The price and inventory of RS2A R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RS2A R5G is usually 5 days.

3.What payment methods are accepted for RS2A R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RS2A R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for RS2A R5G?

RS2A R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your RS2A 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 RS2A R5G?

For technical support, including RS2A R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RS2A R5G requirements.

6.How does Aetrix verify that RS2A R5G is sourced from the original manufacturer or authorized distributors?

All RS2A 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 RS2A R5G meets industry standards.

7.What is the process for return or replacement of RS2A R5G?

All RS2A R5G units undergo pre-shipment inspection (PSI). If there is an issue with RS2A 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 RS2A R5G part is unused and in its original packaging.

Return procedure for RS2A R5G:

1.Submit a request within 90 days.

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

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