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Taiwan Semiconductor Corporation SR320HA0G
- Part No.:
- SR320HA0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR320HA0G.pdf
- Description:
- DIODE SCHOTTKY 200V 3A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:3,596
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Product details
Overview
SR320HA0G from Taiwan Semiconductor is a 3 A, 200 V AEC-Q101-qualified Schottky barrier rectifier in DO-201AD package, featuring 0.95 V forward voltage at 3 A and 2 mA reverse leakage at 125 °C, optimized for high-efficiency DC/DC converters and automotive-grade power supplies.
For engineers reviewing the SR320HA0G datasheet, SR320HA0G pinout, SR320HA0G application, or SR320HA0G equivalent, key selection criteria include peak reverse voltage (200 V), surge current rating (80 A), thermal resistance (RθJA = 50 °C/W), AEC-Q101 qualification, and DO-201AD mechanical compatibility.
Technical Context
This device operates as a single-die, unidirectional power rectifier with guard ring overvoltage protection and pure tin-plated leads compliant with J-STD-002 solderability. Its junction temperature range extends to +150 °C, supporting operation in under-hood automotive environments.
The SR320HA0G exhibits low forward voltage drop and high dv/dt capability (10,000 V/µs), enabling fast switching in high-frequency SMPS designs while maintaining low conduction loss and robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback or boost topologies |
| IF | 3 A - Continuous average forward current; determines steady-state power handling without derating |
| IFSM | 80 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current tolerance |
| VF | 0.95 V @ 3 A, 25 °C - Low conduction loss enables >92% efficiency in 12 V–48 V output DC/DC stages |
| IR | 100 µA @ 200 V, 25 °C; 2 mA @ 200 V, 125 °C - Confirmed leakage behavior across automotive temperature range |
| TJ max | +150 °C - Enables use in engine-control modules and other high-ambient-temperature locations |
| RθJA | 50 °C/W - Thermal performance baseline for PCB copper area design and heatsinkless layout |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; 1.10 g mass; UL 94V-0 molding compound; JESD 201 Class 2 whisker-resistant tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to source-side of switching node; must handle full load current and surge transients |
| Cathode | Output current exit point | Connected to output filter capacitor and load; polarity marked by visible band on body |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTOL, TC, HTRB, and UHAST |
| Guard ring structure | Enhances edge termination robustness against localized electric field crowding during voltage transients |
| Low VF (0.95 V) | Reduces conduction loss by ~35% vs. comparable 200 V Si PN rectifiers at 3 A, lowering thermal load |
| High IFSM/IF ratio (26.7×) | Supports 80 A surge without bond wire fusing-critical for hot-swap and load-dump scenarios |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for RoHS and ELV compliance |
Applications
| Automotive DC/DC Converters | Industrial SMPS Front-End |
|---|---|
Use Scenario: 12 V to 48 V bidirectional converter in 48 V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or asynchronous buck-boost stage. Use Value: AEC-Q101 qualification and +150 °C rating ensure reliability in engine bay mounting; 0.95 V VF minimizes heat generation under continuous 3 A load. | Use Scenario: Output rectification in 36–75 V input telecom power supply with 3 A output requirement. IC Role / Device Role / Timing Role: Uncontrolled freewheeling diode in active-clamp forward topology. Use Value: 80 A IFSM withstands line surges; DO-201AD package allows manual rework and legacy board compatibility. |
| USB-C PD Adapters | LED Driver Secondary Side |
Use Scenario: Secondary-side rectification in compact 65 W USB-C PD adapter with 20 V output. IC Role / Device Role / Timing Role: High-frequency output rectifier operating at 100–300 kHz switching frequency. Use Value: Low VF and fast recovery reduce conduction loss and EMI; 50 °C/W RθJA enables thermally constrained PCB layouts. | Use Scenario: Constant-current LED string rectification in outdoor streetlight driver with 200 V bus. IC Role / Device Role / Timing Role: Main output rectifier in isolated flyback LED driver. Use Value: 200 V VRRM provides margin above 170 V rectified AC line peaks; 2 mA leakage at 125 °C ensures stable current regulation. |
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-M3/54 | 200 V, 3 A, TO-277 package; VF = 0.82 V @ 3 A; no AEC-Q101 qualification | Surface-mount only; requires reflow-compatible layout; lacks automotive stress validation | Preferred for space-constrained SMT designs where AEC-Q101 is not mandated |
| ON Semiconductor SB3200-E3/54 | 200 V, 3 A, DO-201AD; VF = 0.98 V @ 3 A; AEC-Q101 qualified; IR = 500 µA @ 25 °C | Higher leakage at room temperature but identical thermal and surge ratings | Drop-in replacement where lower initial leakage is prioritized over worst-case high-temp leakage |
Compared with SR320HA0G, the VS-3EWH02-M3/54 offers lower forward voltage but lacks automotive qualification and uses a different package, while the SB3200-E3/54 matches the DO-201AD form factor and AEC-Q101 status but trades slightly higher VF for tighter room-temperature leakage control.
Availability
SR320HA0G is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS front-end designs, and USB-C PD adapters requiring stable component supply with AEC-Q101 assurance and DO-201AD through-hole compatibility.
Supply support for SR320HA0G 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 automotive markets.
The SR302–SR320 family was designed specifically for high-reliability, medium-current power conversion applications demanding AEC-Q101 compliance, low forward voltage, and robust surge immunity in cost-sensitive DO-201AD packaging.
FAQ
What does the 'H' and 'A0G' suffix mean in SR320HA0G?
The 'H' suffix indicates AEC-Q101 qualification, confirming the SR320HA0G has passed automotive-grade reliability stress testing. The 'A0G' denotes 500-piece ammo box packaging with green compound (halogen-free) per IEC 61249-2-21. This distinguishes SR320HA0G from tape-and-reel variants like SR320H and non-automotive versions such as SR320.
Is SR320HA0G pin-compatible with other SR3xx series rectifiers?
Yes - all SR3xx devices, including SR320HA0G, share identical DO-201AD package dimensions, anode/cathode terminal configuration, and mechanical footprint. No PCB layout change is required when substituting within the SR302–SR320 family, though electrical parameters (VRRM, VF, IR) vary by voltage grade.
What is the maximum junction temperature rating for SR320HA0G?
The SR320HA0G has a maximum junction temperature (TJ) rating of +150 °C, verified per AEC-Q101 test conditions. This allows operation in under-hood automotive environments and high-ambient industrial settings where ambient temperatures exceed 105 °C, provided thermal design meets RθJA = 50 °C/W limits.
Does SR320HA0G have a guard ring structure, and why does it matter?
Yes, the SR320HA0G incorporates a guard ring for overvoltage protection. This structural feature mitigates edge breakdown under high dv/dt or transient voltage stress, improving long-term reliability in switching applications such as DC/DC converters where rapid voltage transitions occur across the device terminals.
How does SR320HA0G's forward voltage compare to silicon PN rectifiers at 200 V rating?
At 3 A and 25 °C, SR320HA0G delivers VF = 0.95 V - approximately 40–50% lower than equivalent 200 V silicon PN rectifiers (typically 1.5–1.7 V). This directly reduces conduction loss and thermal dissipation, making SR320HA0G especially advantageous in high-efficiency, thermally constrained power supplies where the SR320HA0G replaces older-generation diodes.
SR320HA0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Box (TB)
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR320HA0G FAQ
1.How can I place an order for SR320HA0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR320HA0G 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 SR320HA0G reliable?
The price and inventory of SR320HA0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR320HA0G is usually 5 days.
3.What payment methods are accepted for SR320HA0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR320HA0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR320HA0G?
SR320HA0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR320HA0G 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 SR320HA0G?
For technical support, including SR320HA0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR320HA0G requirements.
6.How does Aetrix verify that SR320HA0G is sourced from the original manufacturer or authorized distributors?
All SR320HA0G 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 SR320HA0G meets industry standards.
7.What is the process for return or replacement of SR320HA0G?
All SR320HA0G units undergo pre-shipment inspection (PSI). If there is an issue with SR320HA0G, 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 SR320HA0G part is unused and in its original packaging.
Return procedure for SR320HA0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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