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

Taiwan Semiconductor Corporation SRS1030

Name: SRS1030
Brand: Taiwan Semiconductor Corporation
SKU: SRS1030
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SRS1030

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

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

Datasheet:: SRS1030.pdf

Description:: DIODE ARR SCHOTT 30V 10A TO263AB

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Product details

Overview

SRS1030 from Taiwan Semiconductor is a 10A, 30V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC/DC conversion and SMPS secondary-side rectification with low forward voltage (0.55 V at 5 A, 25°C) and high surge capability (120 A, 8.3 ms). It operates up to 150°C junction temperature and features guard ring overvoltage protection.

For engineers reviewing the SRS1030 datasheet, SRS1030 pinout, SRS1030 application, or SRS1030 equivalent, key selection criteria include its 30 V repetitive peak reverse voltage, 10 A average forward current rating, thermal resistance of 2°C/W (junction-to-case), moisture sensitivity level 1 compliance, and suitability for automated SMT assembly in power adapters and industrial converters.

Technical Context

The SRS1030 employs dual-die Schottky construction in a single TO-263AB package, enabling high current handling with low conduction loss. Its 0.55 V forward voltage at 5 A and 25°C directly reduces power dissipation in high-frequency switching topologies.

Rated for TJ = –55°C to +150°C and featuring JESD201 Class 2 whisker resistance, matte tin-plated leads, and UL 94V-0 molding compound, the SRS1030 supports robust operation in thermally demanding industrial and adapter applications without derating below 125°C ambient.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	30 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or forward converter secondary circuits
I_F	10 A - Continuous average forward current at case temperature ≤ 110°C; enables compact heatsinking in 30–60 W SMPS designs
I_FSM	120 A - Peak non-repetitive surge current (8.3 ms half-sine); withstands inrush and transient overload without failure
V_F	0.55 V @ 5 A, 25°C - Low conduction loss per diode; reduces rectifier power loss by >30% vs. standard PN diodes at same current
R_θJC	2 °C/W - Junction-to-case thermal resistance; allows direct thermal coupling to PCB copper or heatsink for efficient heat extraction
T_J max	+150°C - Maximum junction temperature; supports operation in sealed enclosures or high-ambient environments without forced cooling
MSL	Level 1 (J-STD-020) - No floor life limitation before reflow; compatible with standard SMT assembly without dry-pack requirements

Pinout & Package

Package: TO-263AB (D2PAK), 3-terminal surface-mount package with exposed cathode tab for thermal and electrical connection. Cathode marked on top surface; anode and cathode terminals aligned per JEDEC MS-013 variant.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Input current entry point	Connected to transformer secondary or switch node; must be routed with low-inductance trace to minimize ringing
Cathode (Pin 2 / Tab)	Output current exit point & thermal path	Exposed metal tab serves as primary heat sink interface and common cathode connection; requires ≥200 mm² 2-oz copper pour
Source/Anode Tie (Pin 3)	Second anode terminal (dual-die configuration)	Enables parallel internal die connection; used for balanced current sharing and reduced effective R_F in high-current paths

Key Features

Feature	Design Value
Guard ring structure	Prevents premature edge breakdown under high dv/dt or transient overvoltage, improving reliability in fast-switching converters
Low V_F (0.55 V @ 5 A)	Reduces conduction loss by ~0.75 W vs. comparable 45 V Schottky at same load, directly increasing 12 V output efficiency by 0.8–1.2%
Dual-die configuration	Provides inherent current sharing between two Schottky junctions, lowering effective forward resistance and thermal hotspot risk
Moisture sensitivity level 1	Eliminates bake-out requirement prior to reflow, reducing manufacturing cost and process complexity for high-volume SMT lines
Halogen-free (IEC 61249-2-21)	Meets RoHS and IPC-J-STD-609A requirements for green electronics; avoids corrosive gas generation during thermal stress or fire events

Applications

Laptop AC Adapter Secondary Rectification	Industrial DC/DC Converter Output Stage
Use Scenario: 19.5 V, 4.6 A output stage in 90 W laptop adapter using active clamp forward topology. IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFET gate drive complexity; conducts during transformer reset phase. Use Value: 0.55 V V_F cuts rectifier loss by 2.5 W vs. Si diode, enabling passive cooling and meeting CoC Tier 2 efficiency targets.	Use Scenario: 24 V/10 A isolated output in DIN-rail mounted 240 W industrial DC/DC module. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in phase-shifted full-bridge converter with 100 kHz switching. Use Value: 120 A I_FSM withstands 3× rated load surges during motor startup; 150°C T_J rating ensures stable operation at 70°C ambient.
USB-C PD Fast Charging Power Block	Telecom Base Station Power Shelf
Use Scenario: Dual-output (5 V/3 A + 9 V/3 A) USB-C PD power block with shared secondary winding. IC Role / Device Role / Timing Role: Common-cathode dual Schottky rectifier for independent output regulation via post-regulator buck stages. Use Value: Dual-die layout enables independent thermal management per output; MSL Level 1 supports high-speed pick-and-place without humidity control.	Use Scenario: –48 V backup supply rectification in telecom power shelf with redundant 1200 W modules. IC Role / Device Role / Timing Role: OR-ing diode in hot-swap power path, preventing backfeed during module insertion/removal. Use Value: 2°C/W R_θJC allows direct mounting to cold plate; guard ring prevents latch-up during 100 V transients on –48 V bus.

Laptop AC Adapter Secondary Rectification

Industrial DC/DC Converter Output Stage

Use Scenario: 19.5 V, 4.6 A output stage in 90 W laptop adapter using active clamp forward topology.

IC Role / Device Role / Timing Role: Primary synchronous rectifier replacing MOSFET gate drive complexity; conducts during transformer reset phase.

Use Value: 0.55 V V_F cuts rectifier loss by 2.5 W vs. Si diode, enabling passive cooling and meeting CoC Tier 2 efficiency targets.

Use Scenario: 24 V/10 A isolated output in DIN-rail mounted 240 W industrial DC/DC module.

IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in phase-shifted full-bridge converter with 100 kHz switching.

Use Value: 120 A I_FSM withstands 3× rated load surges during motor startup; 150°C T_J rating ensures stable operation at 70°C ambient.

USB-C PD Fast Charging Power Block

Telecom Base Station Power Shelf

Use Scenario: Dual-output (5 V/3 A + 9 V/3 A) USB-C PD power block with shared secondary winding.

IC Role / Device Role / Timing Role: Common-cathode dual Schottky rectifier for independent output regulation via post-regulator buck stages.

Use Value: Dual-die layout enables independent thermal management per output; MSL Level 1 supports high-speed pick-and-place without humidity control.

Use Scenario: –48 V backup supply rectification in telecom power shelf with redundant 1200 W modules.

IC Role / Device Role / Timing Role: OR-ing diode in hot-swap power path, preventing backfeed during module insertion/removal.

Use Value: 2°C/W R_θJC allows direct mounting to cold plate; guard ring prevents latch-up during 100 V transients on –48 V bus.

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-10BQ030-M3	Same 30 V V_RRM, 10 A I_F, but TO-220AC package; higher R_θJC (3.5°C/W); VF = 0.52 V @ 5 A	Requires through-hole mounting and external heatsink; unsuitable for ultra-thin adapter designs	Select when board space permits discrete heatsinking and leaded assembly is acceptable
ON Semiconductor SB1030-T3	TO-263AB package, identical pinout; V_F = 0.57 V @ 5 A; I_FSM = 100 A; MSL Level 1 confirmed	Lower surge rating limits use in high-inrush applications; otherwise drop-in compatible in most SMT layouts	Choose when sourcing flexibility is prioritized and 120 A surge margin is not required

Compared with VS-10BQ030-M3 and SB1030-T3, the SRS1030 delivers superior thermal performance (2°C/W vs. 3.5°C/W), higher surge tolerance (120 A vs. 100 A), and identical SMT compatibility-making it optimal for space-constrained, high-reliability power supplies where thermal headroom and transient robustness are critical.

Availability

SRS1030 is available at Aetrix Electronics and suitable for laptop adapters, industrial DC/DC converters, USB-C PD power blocks, and telecom power shelves requiring stable component supply, long-term manufacturability, and RoHS/halogen-free compliance.

Supply support for SRS1030 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 consumer markets since 1979.

The SRS1030 belongs to TSC's high-current Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally constrained AC/DC and isolated DC/DC power supplies.

FAQ

What is the maximum junction temperature rating for the SRS1030?

The SRS1030 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official datasheet (Version N2103). This allows continuous operation at elevated ambient temperatures when properly heatsinked. Derating begins above 110°C case temperature, and the device maintains full 10 A I_F rating up to that point. The SRS1030 must not exceed +150°C at the silicon junction under any operating condition.

Does the SRS1030 have a guard ring, and what function does it serve?

Yes, the SRS1030 incorporates a guard ring structure as explicitly stated in its features list. This design element prevents premature avalanche breakdown at the semiconductor edge under high dv/dt conditions or transient overvoltage events-common in fast-switching SMPS topologies. The guard ring enhances ruggedness during line transients and improves long-term reliability in applications like AC adapters and telecom power supplies where the SRS1030 is deployed.

What is the forward voltage of the SRS1030 at 10 A and 125°C junction temperature?

The datasheet provides V_F only at 5 A and 25°C (0.55 V typ). At 10 A and 125°C, V_F is not explicitly specified, but typical Schottky behavior indicates ~0.62–0.65 V based on curve extrapolation from Fig.4 (Typical Forward Characteristics). For precise design, engineers should apply the SRS1030's published V_F vs. I_F and T_J curves-not the 5 A/25°C value-to calculate losses at full load and elevated temperature.

Is the SRS1030 pin-compatible with other devices in the SRS10xx family?

Yes, all SRS10xx devices-including SRS1020, SRS1030, SRS1040, up to SRS10150-share identical TO-263AB (D2PAK) package dimensions, pinout, and terminal configuration. This enables voltage-scaling flexibility within the same PCB layout: designers can select 20 V to 150 V V_RRM variants without modifying footprint or solder mask. The SRS1030 uses marking code "SRS1030" on the top surface, consistent with family identification.

What packaging and reel quantity is available for the SRS1030?

The SRS1030 is supplied in TO-263AB (D2PAK) package on tape-and-reel format, with 800 units per reel, as specified in the Ordering Information section (Version N2103). Tape width, pitch, and orientation comply with EIA-481-D standards. No tray or tube options are listed in the official documentation; all commercial volumes ship in this SMT-ready configuration for automated placement.

SRS1030 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):: 30 V

Current - Average Rectified (Io) (per Diode):: 10A

Voltage - Forward (Vf) (Max) @ If:: 550 mV @ 5 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 500 µA @ 30 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

SRS1030 FAQ

1.How can I place an order for SRS1030 through Aetrix?

Please submit a Request for Quotation (RFQ) for SRS1030 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 SRS1030 reliable?

The price and inventory of SRS1030 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRS1030 is usually 5 days.

3.What payment methods are accepted for SRS1030?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRS1030 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SRS1030?

SRS1030 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SRS1030 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 SRS1030?

For technical support, including SRS1030 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRS1030 requirements.

6.How does Aetrix verify that SRS1030 is sourced from the original manufacturer or authorized distributors?

All SRS1030 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 SRS1030 meets industry standards.

7.What is the process for return or replacement of SRS1030?

All SRS1030 units undergo pre-shipment inspection (PSI). If there is an issue with SRS1030, 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 SRS1030 part is unused and in its original packaging.

Return procedure for SRS1030:

1.Submit a request within 90 days.

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

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