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

Taiwan Semiconductor Corporation SR110

Name: SR110
Brand: Taiwan Semiconductor Corporation
SKU: SR110
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SR110

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

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

Datasheet:: SR110.pdf

Description:: DIODE SCHOTTKY 100V 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:3,442

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Product details

Overview

SR110 from Taiwan Semiconductor is a 1 A, 100 V Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.85 V forward voltage at 1 A and 100 µA reverse leakage at 25°C, optimized for high-efficiency DC/DC converters and industrial power adapters.

For engineers reviewing the SR110 datasheet, SR110 pinout, SR110 application, or SR110 equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 30 A surge current rating, AEC-Q101 qualification option (SR110H), junction temperature range up to +150°C, and DO-41 mechanical compatibility with legacy through-hole layouts.

Technical Context

This Schottky rectifier uses a single-die construction with guard ring structure for overvoltage protection and meets JESD201 Class 2 whisker resistance. Its 10,000 V/µs critical dv/dt rating supports fast-switching topologies without parasitic turn-on.

Thermal performance is defined by a 90°C/W junction-to-ambient resistance; derating begins at 75°C ambient for full 1 A continuous operation, with maximum junction temperature rated at +150°C for extended reliability in enclosed power supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or buck converter output stages
I_F	1 A - Continuous forward current rating at TA = 25°C; requires thermal derating above 75°C ambient
V_F @ 1 A, 25°C	0.85 V - Low conduction loss enabling >92% efficiency in 12 V–48 V DC/DC outputs
I_R @ V_R, 25°C	100 µA - Minimal leakage ensures stable no-load regulation and low standby power
I_FSM	30 A - Peak non-repetitive surge current capability for cold-start and transient overload handling
T_J max	+150°C - Extended junction temperature rating supports operation in sealed industrial enclosures

Pinout & Package

DO-204AL (DO-41) axial-leaded package with cathode band marking; leads are pure tin plated, solderable per J-STD-002, and meet UL 94V-0 flammability standard.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in synchronous rectification)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or filter capacitor positive terminal

Key Features

Feature	Design Value
Guard ring structure	Prevents edge breakdown under high dv/dt, enabling reliable operation in hard-switched SMPS
AEC-Q101 qualification option	SR110H variant available for automotive-grade power supply modules requiring stress-tested reliability
Low I_R at high T_J	≤2 mA at 125°C ensures stable reverse blocking in thermally constrained environments
Halogen-free molding compound	Complies with IEC 61249-2-21; eliminates corrosive halogen emissions during reflow or field failure

Applications

Industrial Power Adapters	Telecom DC/DC Converters
Use Scenario: 24 V input, 5 V/1 A isolated output adapter for programmable logic controllers. IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diodes to reduce conduction loss and improve thermal margin. Use Value: 0.85 V V_F cuts rectifier power loss by 35% vs. 1.2 V Si diode, lowering heatsink requirements.	Use Scenario: Intermediate bus converter (48 V → 12 V) in telecom shelf power systems. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier driver companion in quasi-resonant topology. Use Value: 30 A I_FSM withstands inrush during hot-swap insertion without degradation.
Automotive Body Control Modules	LED Driver Power Supplies
Use Scenario: 12 V battery-fed power rail conditioning for BCM microcontroller and sensor interface. IC Role / Device Role / Timing Role: Reverse polarity protection and load dump clamping rectifier. Use Value: AEC-Q101 qualified SR110H variant ensures 15-year lifetime under automotive thermal cycling.	Use Scenario: Constant-current LED driver with 36 V output for streetlight applications. IC Role / Device Role / Timing Role: Freewheeling path in boost converter output stage. Use Value: 100 V V_RRM provides 2× safety margin over 36 V LED string open-circuit voltage.

Industrial Power Adapters

Telecom DC/DC Converters

Use Scenario: 24 V input, 5 V/1 A isolated output adapter for programmable logic controllers.

IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diodes to reduce conduction loss and improve thermal margin.

Use Value: 0.85 V V_F cuts rectifier power loss by 35% vs. 1.2 V Si diode, lowering heatsink requirements.

Use Scenario: Intermediate bus converter (48 V → 12 V) in telecom shelf power systems.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier driver companion in quasi-resonant topology.

Use Value: 30 A I_FSM withstands inrush during hot-swap insertion without degradation.

Automotive Body Control Modules

LED Driver Power Supplies

Use Scenario: 12 V battery-fed power rail conditioning for BCM microcontroller and sensor interface.

IC Role / Device Role / Timing Role: Reverse polarity protection and load dump clamping rectifier.

Use Value: AEC-Q101 qualified SR110H variant ensures 15-year lifetime under automotive thermal cycling.

Use Scenario: Constant-current LED driver with 36 V output for streetlight applications.

IC Role / Device Role / Timing Role: Freewheeling path in boost converter output stage.

Use Value: 100 V V_RRM provides 2× safety margin over 36 V LED string open-circuit voltage.

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-1EWH10	Same DO-41 package, 100 V V_RRM, but 0.79 V V_F at 1 A and 200 µA I_R at 25°C	Lower V_F improves light-load efficiency; higher I_R limits high-temperature use	Preferred where ambient stays below 85°C and minimal conduction loss is critical
ON Semiconductor SB1100	DO-41, 100 V V_RRM, 0.82 V V_F, 50 µA I_R at 25°C, but only rated to +125°C T_J	Better leakage control at room temperature; reduced thermal headroom for sealed designs	Best for cost-sensitive consumer adapters with active cooling and <125°C junction limit

Compared with VS-1EWH10 and SB1100, SR110 delivers superior high-temperature reverse leakage stability (≤2 mA at 125°C) and extended +150°C junction rating-making it optimal for thermally aggressive industrial and automotive power stages where long-term reliability outweighs marginal V_F reduction.

Availability

SR110 is available at Aetrix Electronics and suitable for industrial power adapters, telecom DC/DC converters, automotive body control modules, and LED driver power supplies requiring stable component supply across multi-year production cycles.

Supply support for SR110 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 management and automotive electronics markets since 1979.

The SR102–SR115 series was designed specifically for high-reliability, cost-optimized Schottky rectification in space-constrained AC/DC and DC/DC power supplies targeting industrial automation and transportation electronics.

FAQ

What is the maximum junction temperature rating for SR110?

The SR110 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the G2104 datasheet. This allows sustained operation in thermally demanding environments such as sealed industrial power supplies or under-hood automotive modules when properly heatsinked. The SR110 maintains specified electrical parameters up to this limit, unlike lower-rated alternatives capped at +125°C.

Is SR110 available in an AEC-Q101 qualified version?

Yes, the SR110H variant is AEC-Q101 qualified and marked with "H" in the ordering code. It undergoes additional stress testing including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing to meet automotive reliability requirements. Standard SR110 is not AEC-Q101 qualified; only SR110H carries this certification.

What is the forward voltage drop of SR110 at 1 A and 25°C?

The SR110 exhibits a typical forward voltage (V_F) of 0.85 V at 1 A and 25°C, as specified in the Electrical Specifications table of the G2104 datasheet. This value is measured under pulse conditions (PW = 0.3 ms) and represents the conduction loss baseline used for efficiency calculations in DC/DC converter output stages.

Does SR110 have a guard ring structure, and what is its function?

Yes, SR110 incorporates a guard ring structure explicitly noted in the FEATURES section of the G2104 datasheet. This design prevents premature edge breakdown under high dv/dt transients, enhancing ruggedness in fast-switching topologies like quasi-resonant converters and improving long-term reliability during repetitive surge events.

What packaging options are available for SR110?

SR110 is supplied in DO-204AL (DO-41) package with two standard packing formats: 5,000 units per tape-and-reel (ordering code SR110) and 3,000 units per ammo box (ordering code SR110A0G). Both variants use pure tin-plated leads compliant with J-STD-002 solderability standards and UL 94V-0 molding compound.

SR110 Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Schottky

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

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 850 mV @ 1 A

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

Reverse Recovery Time (trr):: -

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

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

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

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

SR110 FAQ

1.How can I place an order for SR110 through Aetrix?

Please submit a Request for Quotation (RFQ) for SR110 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 SR110 reliable?

The price and inventory of SR110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR110 is usually 5 days.

3.What payment methods are accepted for SR110?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR110 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SR110?

SR110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SR110 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 SR110?

For technical support, including SR110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR110 requirements.

6.How does Aetrix verify that SR110 is sourced from the original manufacturer or authorized distributors?

All SR110 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 SR110 meets industry standards.

7.What is the process for return or replacement of SR110?

All SR110 units undergo pre-shipment inspection (PSI). If there is an issue with SR110, 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 SR110 part is unused and in its original packaging.

Return procedure for SR110:

1.Submit a request within 90 days.

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

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