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

Taiwan Semiconductor Corporation SR002 R0G

Name: SR002 R0G
Brand: Taiwan Semiconductor Corporation
SKU: SR002 R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SR002 R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: SR002 R0G.pdf

Description:: DIODE SCHOTTKY 20V 500MA DO204AL

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SR002 R0G from Taiwan Semiconductor is a 0.5A, 20V repetitive peak reverse voltage Schottky barrier rectifier in DO-204AL (DO-41) package, featuring low forward voltage drop (max 0.55V at 0.5A, 25°C), high surge current capability (30A), and AEC-Q101 qualification option. It serves as a primary output rectifier in compact AC/DC adapters and DC-DC converters.

For engineers reviewing the SR002 R0G datasheet, SR002 R0G pinout, SR002 R0G application, or SR002 R0G equivalent, key selection criteria include its 20V V_RRM, 0.55V V_F max at rated current, 50°C/W junction-to-ambient thermal resistance, 110pF junction capacitance, and cathode-band polarity marking for unambiguous PCB layout.

Technical Context

This Schottky rectifier uses a single-die construction with guard ring structure to enhance overvoltage robustness and suppress leakage under high-temperature bias. Its low V_F and fast recovery enable high-efficiency operation in high-frequency switching topologies up to several hundred kHz.

The device operates across a junction temperature range of –55°C to +125°C (standard grade), supports 30A non-repetitive surge current per 8.3ms half-sine wave, and exhibits 500µA max reverse leakage at 25°C and rated VR - critical for standby power compliance in energy-sensitive designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	20 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck output stage
I_F	0.5 A - Continuous average forward current; sets maximum steady-state power delivery capability
V_F (max)	0.55 V @ 0.5A, 25°C - Directly determines conduction loss and thermal rise in high-duty-cycle applications
I_FSM	30 A - Peak non-repetitive surge current; enables robustness against line transients and startup inrush
R_θJA	50 °C/W - Thermal resistance from junction to ambient; used to calculate worst-case junction temperature on standard FR-4 PCB
C_J	110 pF @ 1MHz, 4V - Junction capacitance affects high-frequency switching noise and EMI filter design
T_J max	125 °C - Maximum allowable junction temperature; constrains derating curve above 75°C ambient

Pinout & Package

Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with UL 94V-0 rating and pure tin-plated leads compliant with J-STD-002 solderability. Polarity indicated by cathode band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return)
Cathode	Forward current exit point	Connected to output rail; cathode band marks this terminal for correct orientation during placement

Key Features

Feature	Design Value
Guard ring structure	Improves ruggedness against transient overvoltage without requiring external snubbers in cost-sensitive SMPS
AEC-Q101 qualified version available	Enables use in automotive infotainment and body electronics where reliability validation is mandatory
Low 0.55V forward drop	Reduces conduction loss by ~30% vs. comparable silicon diodes, directly improving efficiency in 5–12V output rails
RoHS & halogen-free	Meets IEC 61249-2-21 and global environmental compliance requirements for consumer and industrial end equipment
110pF junction capacitance	Minimizes reverse recovery charge and associated switching losses in high-frequency (>200kHz) converters

Applications

USB-C Power Adapter Output Rectification	Industrial DC-DC Converter Secondary Side
Use Scenario: 5V/3A output stage in compact wall-mounted USB-C PD adapter with 200kHz flyback topology. IC Role / Device Role / Timing Role: Primary unidirectional power path rectifier converting transformer secondary AC to regulated DC output. Use Value: 0.55V V_F minimizes heat generation in confined enclosure; 30A I_FSM withstands repeated plug-in surges.	Use Scenario: 24V-to-5V isolated DC-DC module powering PLC I/O modules in factory automation cabinets. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side synchronous topology, leveraging low V_F for efficiency gain. Use Value: 125°C T_J max and 50°C/W R_θJA support reliable operation at 70°C ambient with minimal heatsinking.
LED Driver Constant-Current Output Stage	Automotive Cabin Lighting Power Supply
Use Scenario: Constant-current LED driver for architectural lighting using buck-derived topology with 30kHz switching. IC Role / Device Role / Timing Role: Freewheeling diode providing continuous current path during low-side MOSFET off-time. Use Value: 110pF C_J limits high-frequency ringing; low V_F reduces dropout across current-sense resistor.	Use Scenario: 12V input, 5V output power supply for RGB LED ambient lighting in vehicle door panels. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback converter meeting AEC-Q101 stress test requirements. Use Value: AEC-Q101 qualified variant ensures qualification for automotive temperature cycling, humidity, and mechanical shock testing.

USB-C Power Adapter Output Rectification

Industrial DC-DC Converter Secondary Side

Use Scenario: 5V/3A output stage in compact wall-mounted USB-C PD adapter with 200kHz flyback topology.

IC Role / Device Role / Timing Role: Primary unidirectional power path rectifier converting transformer secondary AC to regulated DC output.

Use Value: 0.55V V_F minimizes heat generation in confined enclosure; 30A I_FSM withstands repeated plug-in surges.

Use Scenario: 24V-to-5V isolated DC-DC module powering PLC I/O modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Synchronous rectifier replacement in secondary-side synchronous topology, leveraging low V_F for efficiency gain.

Use Value: 125°C T_J max and 50°C/W R_θJA support reliable operation at 70°C ambient with minimal heatsinking.

LED Driver Constant-Current Output Stage

Automotive Cabin Lighting Power Supply

Use Scenario: Constant-current LED driver for architectural lighting using buck-derived topology with 30kHz switching.

IC Role / Device Role / Timing Role: Freewheeling diode providing continuous current path during low-side MOSFET off-time.

Use Value: 110pF C_J limits high-frequency ringing; low V_F reduces dropout across current-sense resistor.

Use Scenario: 12V input, 5V output power supply for RGB LED ambient lighting in vehicle door panels.

IC Role / Device Role / Timing Role: Output rectifier in isolated flyback converter meeting AEC-Q101 stress test requirements.

Use Value: AEC-Q101 qualified variant ensures qualification for automotive temperature cycling, humidity, and mechanical shock testing.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor SB0520	Same 20V V_RRM, 0.5A I_F, but 0.45V typical V_F (vs. 0.55V max for SR002 R0G); DO-41 package, RoHS-compliant	Lower typical V_F improves light-load efficiency; no AEC-Q101 option available	Select when lowest possible conduction loss is prioritized and automotive qualification is not required
Vishay VS-2EQH02HM3/54	20V V_RRM, 0.5A I_F, 0.52V max V_F at 0.5A, 25°C; AEC-Q101 qualified; same DO-41 package	Offers AEC-Q101 certification out-of-box; tighter V_F tolerance supports more predictable thermal design	Select when full AEC-Q101 documentation and traceability are mandatory for production release

Compared with SB0520 and VS-2EQH02HM3/54, SR002 R0G provides verified 20V/0.5A performance with optional AEC-Q101 qualification, making it suitable for cost-sensitive industrial adapters where moderate V_F and proven surge robustness are prioritized over ultra-low conduction loss or pre-certified automotive status.

Availability

SR002 R0G is available at Aetrix Electronics and suitable for USB-C adapters, industrial DC-DC converters, LED drivers, and automotive cabin lighting systems requiring stable component supply and long-term manufacturability.

Supply support for SR002 R0G 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, specializing in power devices, protection components, and signal conditioning ICs.

The SR002 R0G belongs to TSC's SR002–SR010 Schottky rectifier family, engineered for high-efficiency, space-constrained AC/DC and DC/DC power conversion in consumer, industrial, and automotive-qualified applications.

FAQ

What is the maximum junction temperature rating for SR002 R0G?

The SR002 R0G has a maximum junction temperature (T_J) of +125°C under standard operating conditions. This rating applies to the base version without AEC-Q101 qualification. The device must be derated linearly above 75°C ambient temperature per the forward current derating curve in the datasheet to ensure SR002 R0G remains within safe thermal limits during continuous operation.

Does SR002 R0G have AEC-Q101 qualification?

The SR002 R0G itself is not automatically AEC-Q101 qualified; qualification depends on the specific ordering code. Only variants marked with "H" suffix (e.g., SR002H or SR002HA0G) are AEC-Q101 qualified. The SR002 R0G part number indicates green compound and tape-and-reel packaging but does not imply automotive qualification unless explicitly ordered with the "H" designation.

What is the reverse leakage current specification for SR002 R0G at 25°C?

At 25°C junction temperature and rated reverse voltage (20V), the SR002 R0G exhibits a maximum reverse leakage current (I_R) of 500 µA. This value is confirmed in the Electrical Specifications table of the official datasheet and is measured under pulse conditions (PW = 30 ms). Leakage increases significantly at elevated temperatures - up to 10 mA at 100°C - which must be accounted for in low-power standby designs.

Is SR002 R0G compatible with lead-free reflow soldering processes?

Yes, SR002 R0G features pure tin-plated leads that comply with J-STD-002 solderability standards and are fully compatible with lead-free reflow profiles, including peak temperatures up to 260°C. The DO-204AL (DO-41) package's epoxy molding compound meets UL 94V-0 flammability rating, ensuring stability during standard IPC/JEDEC J-STD-020-compliant thermal cycling.

What does the "R0G" suffix mean in SR002 R0G?

The "R0G" suffix in SR002 R0G denotes two attributes: "R0" indicates tape-and-reel packaging with 5,000 units per reel, and "G" specifies green (halogen-free) molding compound per IEC 61249-2-21. This matches TSC's standard ordering nomenclature where SR002 R0G corresponds to the base industrial-grade, RoHS-compliant, halogen-free version in DO-41 package with tape-and-reel delivery.

SR002 R0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 20 V

Current - Average Rectified (Io):: 500mA

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 500 mA

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 20 V

Capacitance @ Vr, F:: 110pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

Operating Temperature - Junction:: -55°C ~ 125°C

SR002 R0G FAQ

1.How can I place an order for SR002 R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SR002 R0G 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 SR002 R0G reliable?

The price and inventory of SR002 R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR002 R0G is usually 5 days.

3.What payment methods are accepted for SR002 R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR002 R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SR002 R0G?

SR002 R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SR002 R0G 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 SR002 R0G?

For technical support, including SR002 R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR002 R0G requirements.

6.How does Aetrix verify that SR002 R0G is sourced from the original manufacturer or authorized distributors?

All SR002 R0G 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 SR002 R0G meets industry standards.

7.What is the process for return or replacement of SR002 R0G?

All SR002 R0G units undergo pre-shipment inspection (PSI). If there is an issue with SR002 R0G, 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 SR002 R0G part is unused and in its original packaging.

Return procedure for SR002 R0G:

1.Submit a request within 90 days.

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

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