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Taiwan Semiconductor Corporation SRAS2030
- Part No.:
- SRAS2030
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SRAS2030.pdf
- Description:
- 20A, 30V, PLANAR SCHOTTKY
- Quantity:
- Payment:
- Shipping:
Inventory:9,892
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Product details
Overview
SRAS2030 from Taiwan Semiconductor is a 20A, 30V Schottky barrier surface-mount rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC/DC conversion and SMPS output rectification with low forward voltage (0.57 V at 20 A, 25°C) and high surge capability (330 A, 8.3 ms).
For engineers reviewing the SRAS2030 datasheet, SRAS2030 pinout, SRAS2030 application, or SRAS2030 equivalent, key selection factors include its 30 V repetitive peak reverse voltage, 1.5 °C/W junction-to-case thermal resistance, 500 µA max reverse leakage at 25°C, and suitability for automated SMT assembly in high-density power supplies.
Technical Context
This Schottky rectifier uses a single-die construction optimized for low conduction loss in medium-voltage switching applications. Its guard ring structure enhances overvoltage ruggedness, while the matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance requirements.
The device operates across –55°C to +150°C junction temperature range and is rated for moisture sensitivity level 1 (per J-STD-020), enabling uncompromised reflow processing without dry-pack handling. Thermal performance is characterized by a typical RθJC of 1.5 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC/DC flyback or buck output stage |
| IF | 20 A - Continuous forward current rating at case temperature ≤ 115°C; supports high-current secondary-side rectification |
| IFSM | 330 A - Non-repetitive surge current (8.3 ms half-sine); withstands inrush and transient overload events |
| VF | 0.57 V - Forward voltage at 20 A, 25°C; directly reduces conduction loss and improves system efficiency |
| IR | 500 µA - Max reverse leakage at rated VR, 25°C; ensures low standby power in offline adapters |
| RθJC | 1.5 °C/W - Junction-to-case thermal resistance; enables predictable heatsinking in compact D2PAK layouts |
Pinout & Package
Package: TO-263AB (D2PAK), surface-mount, 3-terminal configuration with exposed cathode tab for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input terminal for forward current flow | Connected to switching node or transformer secondary; accepts up to 20 A continuous current |
| Cathode (Tab) | Output terminal and thermal path | Electrically and thermally connected to PCB copper pour; primary heat dissipation interface |
| Kathode (Lead) | Secondary cathode connection | Provides redundant low-inductance cathode path; used in parallel-layout designs for current sharing |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances avalanche ruggedness and prevents edge breakdown under transient overvoltage conditions |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; compatible with standard SMT line processes |
| Halogen-free molding compound | Complies with IEC 61249-2-21; supports RoHS-compliant and environmentally regulated end equipment |
| UL 94V-0 rated epoxy | Ensures flame-retardant behavior in high-power density enclosures per safety standards |
Applications
| Laptop AC Adapter Output Rectification | Industrial DC/DC Converter Secondary Side |
|---|---|
Use Scenario: High-efficiency 19 V/5 A output stage in compact laptop adapter with tight thermal constraints. IC Role / Device Role / Timing Role: Primary output rectifier replacing conventional fast recovery diodes to reduce conduction loss. Use Value: 0.57 V VF cuts rectifier power loss by ~40% vs. 0.95 V Si diode at 20 A, improving adapter efficiency from 88% to ≥91%. | Use Scenario: 24 V input to 5 V/15 A isolated DC/DC module for PLC I/O power rails. IC Role / Device Role / Timing Role: Synchronous rectifier alternative where gate drive complexity is undesirable. Use Value: Single-die Schottky architecture enables simpler layout than dual-MOSFET sync rectifiers while maintaining <1.0 V forward drop at full load. |
| Telecom Power Shelf Rectification | Automotive Infotainment DC/DC Stage |
Use Scenario: 48 V to 12 V intermediate bus converter in telecom shelf with 300 W output. IC Role / Device Role / Timing Role: High-current freewheeling path during MOSFET off-time in synchronous buck topology. Use Value: 330 A IFSM rating handles startup surges and short-circuit foldback without failure. | Use Scenario: 12 V to 3.3 V point-of-load converter in automotive head unit with ambient up to 105°C. IC Role / Device Role / Timing Role: Output rectifier operating at elevated case temperatures due to confined enclosure. Use Value: Rated TJ up to 150°C and 15 mA IR at 100°C ensure stable operation without thermal runaway. |
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-20BQ030PBF | Same 30 V VRRM, 20 A IF, TO-263AB package; VF = 0.54 V (typ) at 20 A, but higher IR = 1.0 mA at 25°C | Better conduction efficiency but higher leakage may impact light-load efficiency in adaptive controllers | Prefer when minimizing VF dominates; verify leakage sensitivity in burst-mode operation |
| ON Semiconductor SB2030 | Identical VRRM, IF, package; VF = 0.59 V (max) at 20 A, 25°C; RθJC = 1.7 °C/W | Slightly higher thermal resistance requires larger copper area for same TJ | Acceptable where board space allows modest thermal margin increase; identical footprint replacement |
Compared with VS-20BQ030PBF and SB2030, the SRAS2030 offers balanced trade-offs: lower leakage than VS-20BQ030PBF and better thermal resistance than SB2030, making it optimal for thermally constrained, medium-leakage-tolerant SMPS designs.
Availability
SRAS2030 is available at Aetrix Electronics and suitable for switching mode power supplies, DC/DC converters, and AC adapters requiring stable component supply, consistent parametric performance, and long-term industrial availability.
Supply support for SRAS2030 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 rectifiers, TVS devices, and MOSFETs for industrial and computing markets.
The SRAS2030 belongs to TSC's SRAS Schottky rectifier product line, engineered specifically for high-current, medium-voltage output rectification in space-constrained, high-efficiency power conversion systems.
FAQ
What is the maximum junction temperature rating for SRAS2030?
The SRAS2030 has a maximum junction temperature (TJ) rating of +150°C, with a storage temperature range of –55°C to +150°C. This rating enables reliable operation in high-ambient environments such as enclosed power supplies and industrial control units, provided thermal design maintains junction temperature within this limit using the specified RθJC of 1.5 °C/W.
Does SRAS2030 support lead-free reflow soldering?
Yes, the SRAS2030 supports lead-free reflow soldering. Its matte tin-plated leads comply with J-STD-002 for solderability, and its moisture sensitivity level is rated at Level 1 per J-STD-020-meaning it can be processed through standard Pb-free reflow profiles (e.g., JEDEC J-STD-020 Class 3) without preconditioning or baking.
What is the reverse leakage current of SRAS2030 at 100°C?
The SRAS2030 exhibits a maximum reverse leakage current (IR) of 15 mA at 100°C and rated reverse voltage. This value is confirmed in the Electrical Specifications table under "Reverse current @ rated VR" for TJ = 100°C, and reflects realistic performance under elevated thermal stress in high-power applications.
Is SRAS2030 pin-compatible with other parts in the SRAS20xx family?
Yes, all SRAS20xx parts-including SRAS2020, SRAS2030, SRAS2040, up to SRAS20150-share identical TO-263AB (D2PAK) package dimensions, pinout, and thermal pad layout. This enables voltage-scaling flexibility on the same PCB without layout changes, provided voltage derating and thermal margins are verified for each variant.
What does the marking code 'SRAS2030' indicate on the device body?
The marking code 'SRAS2030' on the SRAS2030 device body identifies the specific part number, confirming its 30 V VRRM rating and membership in the SRAS20xx Schottky rectifier series. It appears alongside date code (YWW) and factory code (F) per the Marking Diagram in the official datasheet revision M2103.
SRAS2030 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
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 570 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SRAS2030 FAQ
1.How can I place an order for SRAS2030 through Aetrix?
Please submit a Request for Quotation (RFQ) for SRAS2030 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 SRAS2030 reliable?
The price and inventory of SRAS2030 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRAS2030 is usually 5 days.
3.What payment methods are accepted for SRAS2030?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRAS2030 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRAS2030?
SRAS2030 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRAS2030 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 SRAS2030?
For technical support, including SRAS2030 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRAS2030 requirements.
6.How does Aetrix verify that SRAS2030 is sourced from the original manufacturer or authorized distributors?
All SRAS2030 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 SRAS2030 meets industry standards.
7.What is the process for return or replacement of SRAS2030?
All SRAS2030 units undergo pre-shipment inspection (PSI). If there is an issue with SRAS2030, 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 SRAS2030 part is unused and in its original packaging.
Return procedure for SRAS2030:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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