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Taiwan Semiconductor Corporation SR320 A0G
- Part No.:
- SR320 A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR320 A0G.pdf
- Description:
- DIODE SCHOTTKY 200V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:7,910
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Product details
Overview
SR320 A0G from Taiwan Semiconductor is a 3A, 200V Schottky barrier rectifier in DO-201AD package, featuring 0.95V forward voltage at 3A and 100µA reverse leakage at 25°C, optimized for high-efficiency DC-DC converters and automotive-grade power supplies.
For engineers reviewing the SR320 A0G datasheet, SR320 A0G pinout, SR320 A0G application, or SR320 A0G equivalent, key selection criteria include its 200V VRRM, 80A IFSM, 125°C/150°C junction temperature range, AEC-Q101 qualification option (via H-suffix), and DO-201AD mechanical compatibility with legacy through-hole layouts.
Technical Context
This discrete Schottky diode uses a single-die construction with guard ring overvoltage protection and pure tin-plated leads compliant with J-STD-002 solderability. Its 15°C/W junction-to-case thermal resistance supports sustained 3A conduction under thermally constrained conditions.
The device operates across -55°C to +150°C storage and -55°C to +125°C (or +150°C) junction temperature ranges, with 10,000 V/µs critical dv/dt rating enabling robust switching in fast-rising edge environments like synchronous rectification circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage; defines upper limit for DC bus or flyback clamp applications |
| IF | 3 A - Continuous average forward current; rated for steady-state conduction without derating at 25°C ambient |
| VF @ 3A, 25°C | 0.95 V - Forward voltage drop; directly determines conduction loss (2.85W at 3A) and thermal load in power stage |
| IR @ 200V, 25°C | 100 µA - Reverse leakage current; low value minimizes standby power loss in high-impedance bias networks |
| IFSM | 80 A - Non-repetitive surge current (8.3ms half-sine); supports inrush tolerance during cold-start or fault recovery |
| RθJC | 15 °C/W - Junction-to-case thermal resistance; enables direct heatsink mounting for thermal management in compact designs |
| TJ max | 125°C / 150°C - Dual-rated maximum junction temperature; higher rating applies to AEC-Q101 qualified variants (H-suffix) |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; body length 7.62 mm, diameter 3.6 mm, lead spacing 5.08 mm, weight ≈1.10 g. RoHS-compliant, halogen-free molding compound (UL 94V-0), JESD201 Class 2 whisker resistant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry point | Connected to lower-potential node (e.g., ground or source) in rectification path |
| Cathode (lead with band) | Forward current exit point | Connected to higher-potential node (e.g., output rail or drain) and carries full load current |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage events without requiring external snubbers |
| AEC-Q101 qualification option | Enables use in automotive power modules where reliability validation per stress-test standard is mandatory |
| Low VF (0.95V @ 3A) | Reduces conduction losses by ~15% vs. comparable 200V Si diodes, improving system efficiency in 12–48V DC-DC stages |
| High IFSM/IF ratio (26.7×) | Supports short-duration surges exceeding nominal rating-critical for input rectification in unregulated AC/DC front-ends |
| Pure tin plating | Ensures reliable solder wetting and intermetallic formation on PCB pads per J-STD-002 requirements |
Applications
| Automotive Body Control Module (BCM) | Industrial 24V DC-DC Converter |
|---|---|
Use Scenario: Rectifying 24V battery-fed auxiliary rails in BCMs powering window lifts, lighting, and sensors. IC Role / Device Role / Timing Role: Primary output rectifier in isolated flyback or forward converter supplying 5V/3.3V logic rails. Use Value: 0.95V VF minimizes heat generation in sealed enclosures; AEC-Q101 option ensures qualification for automotive environmental stress testing. | Use Scenario: Output rectification in DIN-rail mounted 24V-to-5V/12V industrial DC-DC modules. IC Role / Device Role / Timing Role: High-current freewheeling diode in synchronous buck secondary side or standalone rectifier in non-synchronous topologies. Use Value: 80A IFSM withstands repeated inrush during hot-swap events; DO-201AD package allows manual rework and high-voltage creepage clearance. |
| Medical Power Adapter | Telecom Remote Radio Unit (RRU) |
Use Scenario: Secondary-side rectification in compact, low-noise AC/DC adapters for portable diagnostic equipment. IC Role / Device Role / Timing Role: Low-loss output diode in quasi-resonant flyback delivering <3A at 12V/19V with minimal EMI. Use Value: 100µA IR at 25°C reduces standby power consumption below 2mW-supporting Energy Star Level VI compliance. | Use Scenario: Bias supply rectification in outdoor RRU power conditioning units exposed to wide ambient temperature swings. IC Role / Device Role / Timing Role: Input protection and hold-up rectifier feeding DC-DC controllers in -40°C to +85°C operating environment. Use Value: -55°C to +150°C TSTG/TJ rating ensures functionality across extended telecom temperature range without derating. |
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-3EWH02-M3/45 | 200V VRRM, 3A IF, 0.92V VF @ 3A, DO-201AD, AEC-Q101 qualified | Identical voltage/current rating and package; tighter VF tolerance but no guard ring | Select when AEC-Q101 certification is mandatory and guard ring is not required for overvoltage immunity |
| ON Semiconductor SB320-E3/54 | 200V VRRM, 3A IF, 0.95V VF @ 3A, DO-201AD, non-AEC-Q101 | Same electrical specs and footprint; lacks automotive qualification and guard ring | Choose for cost-sensitive industrial applications where AEC-Q101 and enhanced surge robustness are not needed |
Compared with VS-3EWH02-M3/45 and SB320-E3/54, SR320 A0G uniquely combines guard ring overvoltage protection and optional AEC-Q101 qualification in the same DO-201AD package-making it preferred for automotive and harsh-environment rectification where transient resilience is critical.
Availability
SR320 A0G is available at Aetrix Electronics and suitable for automotive body control modules, industrial 24V DC-DC converters, medical power adapters, and telecom remote radio units requiring stable component supply and long-term manufacturability.
Supply support for SR320 A0G 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, rectifiers, and protection components since 1979.
The SR302–SR320 series was designed specifically for high-reliability, medium-current Schottky rectification in space-constrained power supplies where low VF, high surge tolerance, and thermal robustness are prioritized over ultra-high-speed switching.
FAQ
What is the maximum junction temperature rating for SR320 A0G?
The SR320 A0G has a maximum junction temperature of 125°C under standard conditions; however, AEC-Q101 qualified versions (e.g., SR320H A0G) are rated up to 150°C. The SR320 A0G itself is not AEC-Q101 certified-only the H-suffix variant carries that qualification. Always verify the full part number suffix when selecting for high-temperature operation.
Does SR320 A0G have a guard ring structure?
Yes, SR320 A0G incorporates a guard ring design as confirmed in the official Taiwan Semiconductor datasheet (Version J2105). This feature enhances its ability to withstand transient overvoltage events without avalanche breakdown, improving reliability in noisy power environments such as automotive and industrial motor drives.
What is the forward voltage drop of SR320 A0G at 3A and 25°C?
The forward voltage drop of SR320 A0G is 0.95 V at 3A and 25°C junction temperature, as specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet. This value is measured under pulse test conditions (PW = 0.3 ms) and represents typical conduction loss behavior in continuous operation.
Is SR320 A0G RoHS and halogen-free compliant?
Yes, SR320 A0G meets RoHS Directive 2011/65/EU requirements and is halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and the pure tin-plated leads comply with J-STD-002 solderability standards-ensuring environmental compliance and assembly reliability.
What packaging options are available for SR320 A0G?
SR320 A0G is supplied in 500-piece ammo boxes, as indicated in the Ordering Information section of the Taiwan Semiconductor datasheet. It is not offered in tape-and-reel format; for automated placement, consider SR320 (no suffix) or SR320H variants, which support 1,250-piece tape-and-reel packaging.
SR320 A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 100 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR320 A0G FAQ
1.How can I place an order for SR320 A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR320 A0G 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 SR320 A0G reliable?
The price and inventory of SR320 A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR320 A0G is usually 5 days.
3.What payment methods are accepted for SR320 A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR320 A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR320 A0G?
SR320 A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR320 A0G 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 SR320 A0G?
For technical support, including SR320 A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR320 A0G requirements.
6.How does Aetrix verify that SR320 A0G is sourced from the original manufacturer or authorized distributors?
All SR320 A0G 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 SR320 A0G meets industry standards.
7.What is the process for return or replacement of SR320 A0G?
All SR320 A0G units undergo pre-shipment inspection (PSI). If there is an issue with SR320 A0G, 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 SR320 A0G part is unused and in its original packaging.
Return procedure for SR320 A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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