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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation SRS20100

Name: SRS20100
Brand: Taiwan Semiconductor Corporation
SKU: SRS20100
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRS20100

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: SRS20100.pdf

Description:: DIODE ARR SCHOT 100V 20A TO263AB

Quantity:: RFQ Add To RFQ list

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Inventory:4,034

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Product details

Overview

SRS20100 from Taiwan Semiconductor is a 20A, 100V Schottky barrier rectifier in TO-263AB (D2PAK) package, featuring 0.92V forward voltage at 10A/25°C, 200A surge capability, and 1.5°C/W junction-to-case thermal resistance. It serves as a high-efficiency output rectifier in DC-DC converters and industrial SMPS.

For engineers reviewing the SRS20100 datasheet, SRS20100 pinout, SRS20100 application, or SRS20100 equivalent, key selection criteria include its 100V V_RRM, low VF at high IF, TJ max of +150°C, moisture sensitivity level 1 compliance, and dual-die configuration for parallel current handling.

Technical Context

The SRS20100 integrates two Schottky die in a single TO-263AB package with common-cathode configuration, enabling high-current rectification while maintaining low conduction loss. Its guard ring structure provides overvoltage protection, and matte tin-plated leads ensure reliable solderability per J-STD-002.

Designed for operation up to +150°C junction temperature, the device delivers 5mA reverse leakage at TJ = 125°C and supports 8.3ms half-sine surge currents up to 200A - critical for transient load handling in power supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - maximum repetitive reverse voltage the device blocks without breakdown
I_F	20 A - continuous average forward current rating at case temperature ≤ 115°C
I_FSM	200 A - non-repetitive peak surge current capability (8.3ms half-sine)
V_F	0.92 V - forward voltage drop per diode at 10A and 25°C junction temperature
R_θJC	1.5 °C/W - thermal resistance from junction to case, enabling efficient heatsinking
I_R @ V_R	100 µA - reverse leakage current per diode at rated 100V and 25°C
T_J max	+150 °C - maximum allowable junction temperature for continuous operation

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, 3-terminal configuration with anode–cathode–anode layout (dual common-cathode die). Matte tin-plated leads meet J-STD-002 solderability; polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
Terminal 1 (Left)	Anode 1	Input terminal for first Schottky die; connects to high-side switching node
Terminal 2 (Center Tab)	Cathode (Common)	Electrically tied cathodes of both dies; primary thermal path to PCB copper pour
Terminal 3 (Right)	Anode 2	Input terminal for second Schottky die; enables interleaved or parallel rectification

Key Features

Feature	Design Value
Dual Schottky die in single package	Enables 20A total current handling with shared cathode thermal path and reduced board area vs. discrete dual diodes
Guard ring overvoltage protection	Improves ruggedness against voltage transients in SMPS flyback and forward converter outputs
Moisture sensitivity level 1	Eliminates bake requirement prior to reflow, supporting standard automated assembly processes
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications

Applications

Server VRM Output Rectification	Industrial DC-DC Converter
Use Scenario: High-current, high-efficiency 12V-to-1V conversion in server voltage regulator modules. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacement - used as low-VF freewheeling diode during high-side switch off-time. Use Value: 0.92V V_F minimizes conduction loss at 20A, directly improving VRM efficiency and reducing thermal load on heatsink.	Use Scenario: 48V input to 5V/12V isolated DC-DC supply in programmable logic controllers. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant topology. Use Value: 200A I_FSM withstands startup surges and short-circuit events without failure, enhancing system reliability.
Telecom Power Shelf	Automotive On-Board Charger (OBC) Auxiliary Supply
Use Scenario: -48V telecom rectifier module requiring high MTBF and thermal stability. IC Role / Device Role / Timing Role: Main output rectifier in multi-kW distributed power architecture. Use Value: +150°C T_J max and 1.5°C/W R_θJC allow sustained 20A operation in compact, forced-air-cooled enclosures.	Use Scenario: 400V-to-12V auxiliary power supply in EV on-board chargers. IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in flyback or forward converter feeding control circuitry. Use Value: 100µA I_R at 100V ensures minimal standby power loss, supporting stringent automotive low-power requirements.

Server VRM Output Rectification

Industrial DC-DC Converter

Use Scenario: High-current, high-efficiency 12V-to-1V conversion in server voltage regulator modules.

IC Role / Device Role / Timing Role: Primary synchronous rectifier replacement - used as low-VF freewheeling diode during high-side switch off-time.

Use Value: 0.92V V_F minimizes conduction loss at 20A, directly improving VRM efficiency and reducing thermal load on heatsink.

Use Scenario: 48V input to 5V/12V isolated DC-DC supply in programmable logic controllers.

IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant topology.

Use Value: 200A I_FSM withstands startup surges and short-circuit events without failure, enhancing system reliability.

Telecom Power Shelf

Automotive On-Board Charger (OBC) Auxiliary Supply

Use Scenario: -48V telecom rectifier module requiring high MTBF and thermal stability.

IC Role / Device Role / Timing Role: Main output rectifier in multi-kW distributed power architecture.

Use Value: +150°C T_J max and 1.5°C/W R_θJC allow sustained 20A operation in compact, forced-air-cooled enclosures.

Use Scenario: 400V-to-12V auxiliary power supply in EV on-board chargers.

IC Role / Device Role / Timing Role: Secondary-side Schottky rectifier in flyback or forward converter feeding control circuitry.

Use Value: 100µA I_R at 100V ensures minimal standby power loss, supporting stringent automotive low-power requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-20CPH10-M3	Same 100V V_RRM, 20A I_F, but TO-247AC package; higher R_θJC (2.0°C/W); VF = 0.89V @ 10A	Larger footprint; requires mechanical mounting; better suited for through-hole or high-vibration environments	Choose for legacy TO-247 layouts or where higher surge margin is needed despite larger size
ON Semiconductor MBR20100CT	TO-220AB package; identical 100V/20A rating; VF = 0.91V @ 10A; R_θJC = 2.5°C/W; no guard ring	Lower thermal performance; not moisture-sensitive-level-1; lacks overvoltage ruggedness feature	Select when cost is prioritized over thermal efficiency and long-term reliability in humid environments

Compared with VS-20CPH10-M3 and MBR20100CT, the SRS20100 offers superior thermal resistance (1.5°C/W), JEDEC-compliant moisture handling, and integrated guard ring - making it optimal for space-constrained, high-reliability surface-mount power supplies.

Availability

SRS20100 is available at Aetrix Electronics and suitable for server VRMs, industrial DC-DC converters, telecom rectifier modules, and automotive OBC auxiliary supplies requiring stable component supply and full traceability.

Supply support for SRS20100 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving global industrial, computing, and telecom markets since 1979.

The SRS20xx series was developed specifically for high-current, high-efficiency Schottky rectification in modern switched-mode power supplies - emphasizing low VF, rugged surge capability, and surface-mount manufacturability.

FAQ

What is the maximum junction temperature rating for the SRS20100?

The SRS20100 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version L2103). This allows continuous operation at elevated ambient temperatures when properly heatsinked via its TO-263AB exposed tab. The SRS20100 must not exceed this limit to maintain reliability and parametric integrity.

Does the SRS20100 have a common-cathode or common-anode configuration?

The SRS20100 uses a common-cathode configuration: Terminal 2 (center tab) is the shared cathode for both internal Schottky dies, while Terminals 1 and 3 serve as independent anodes. This is confirmed by the marking diagram, mechanical outline, and electrical test conditions in the SRS2020–SRS20150 datasheet (L2103), and enables dual-channel rectification in compact layouts.

Is the SRS20100 suitable for lead-free reflow soldering?

Yes, the SRS20100 is qualified for lead-free reflow soldering. Its matte tin-plated leads comply with J-STD-002, and its moisture sensitivity level is rated at Level 1 per J-STD-020 - meaning it can be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without baking. The SRS20100's UL 94V-0 molding compound also withstands peak reflow temperatures up to 260°C.

What is the reverse leakage current specification for the SRS20100 at 100V and 125°C?

Per the Electrical Specifications table in the Taiwan Semiconductor SRS2020–SRS20150 datasheet (L2103), the SRS20100 exhibits ≤5 mA reverse leakage current per diode at rated V_R = 100V and junction temperature T_J = 125°C. This value is measured under pulse conditions (PW = 30ms) and reflects real-world performance in high-temperature power supply operation.

How does the guard ring feature improve reliability of the SRS20100?

The guard ring in the SRS20100 mitigates edge breakdown under transient overvoltage conditions - such as those occurring during MOSFET switching transitions in flyback or forward converters. By controlling electric field distribution at the silicon periphery, it increases the device's effective V_RRM margin and improves long-term reliability in noisy power systems. This feature is explicitly cited in the FEATURES section of the SRS20100 datasheet (L2103).

SRS20100 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io) (per Diode):: 20A

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 10 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 100 µA @ 100 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

SRS20100 FAQ

1.How can I place an order for SRS20100 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRS20100 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 SRS20100 reliable?

The price and inventory of SRS20100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS20100 is usually 5 days.

3.What payment methods are accepted for SRS20100?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS20100 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRS20100?

SRS20100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRS20100 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 SRS20100?

For technical support, including SRS20100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS20100 requirements.

6.How does Aetrix verify that SRS20100 is sourced from the original manufacturer or authorized distributors?

All SRS20100 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 SRS20100 meets industry standards.

7.What is the process for return or replacement of SRS20100?

All SRS20100 units undergo pre-shipment inspection (PSI). If there is an issue with SRS20100, 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 SRS20100 part is unused and in its original packaging.

Return procedure for SRS20100:

1.Submit a request within 90 days.

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

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