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Taiwan Semiconductor Corporation SR1202H A0G
- Part No.:
- SR1202H A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR1202H A0G.pdf
- Description:
- DIODE SCHOTTKY 20V 12A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,953
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Product details
Overview
SR1202H A0G from Taiwan Semiconductor is a 12A, 20V AEC-Q101-qualified Schottky barrier rectifier in DO-201AD package, featuring 0.45V forward voltage at 5A/25°C, 320A surge capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and SMPS secondary-side rectification.
For engineers reviewing the SR1202H A0G datasheet, SR1202H A0G pinout, SR1202H A0G application, or SR1202H A0G equivalent, key selection criteria include its AEC-Q101 qualification, 20V VRRM rating, DO-201AD thermal performance (RθJL = 3°C/W), and low VF for high-efficiency power conversion in constrained thermal environments.
Technical Context
This Schottky rectifier uses a single-die construction with pure tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Its guard ring structure enhances ruggedness against transient overvoltage events common in automotive load-dump conditions.
Thermal design is supported by a low junction-to-lead resistance of 3°C/W and a 150°C maximum junction temperature, enabling reliable operation at full 12A DC current under forced-air or moderate heatsink conditions per the derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse voltage; defines safe blocking capability in 12–24V automotive systems |
| IF | 12 A - Continuous forward current rating; supports high-current output stages without external heatsinking at moderate ambient |
| IFSM (t=8.3ms) | 320 A - Non-repetitive surge current; withstands inrush and fault transients in DC-DC converters |
| VF @ 5A, 25°C | ≤ 0.45 V - Low conduction loss; reduces power dissipation to ≤2.25W at 5A, improving system efficiency |
| RθJL | 3 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour thermal coupling for compact layouts |
| AEC-Q101 | Qualified - Validated for automotive applications including engine control, body electronics, and ADAS power supplies |
Pinout & Package
Package: DO-201AD - Axial leaded, molded plastic case meeting UL 94V-0; cathode indicated by band; 1.10g weight; polarity-sensitive mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Current entry point under forward bias | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return) |
| Cathode (Lead 2, banded end) | Current exit point under forward bias | Connected to output rail; polarity marking critical for correct orientation in high-reliability assemblies |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock per stress test requirements |
| Guard ring structure | Prevents premature edge breakdown during voltage transients, increasing reliability in noisy 12V/24V systems |
| Low VF (0.45V @ 5A) | Reduces conduction loss by >30% vs. standard silicon rectifiers, lowering thermal load in sealed enclosures |
| Pure tin plating | Ensures consistent solder wetting and long-term intermetallic stability per J-STD-002 Class 2 |
| Halogen-free molding compound | Complies with IEC 61249-2-21; supports RoHS-compliant manufacturing and end-of-life recycling |
Applications
| Automotive DC-DC Converters | Industrial SMPS Secondary Rectification |
|---|---|
Use Scenario: High-efficiency 12V-to-5V/3.3V buck converter in engine control unit (ECU) power supply. IC Role / Device Role / Timing Role: Output rectifier handling continuous 10A load with transient surges up to 320A. Use Value: AEC-Q101 qualification and 150°C TJ max ensure uninterrupted operation across -40°C to +125°C under hood conditions. | Use Scenario: Secondary-side synchronous rectification replacement in 48V telecom power brick. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward topology operating at 200kHz switching frequency. Use Value: 0.45V VF minimizes conduction loss at light-to-moderate loads, improving average efficiency by 1.2% over legacy Si diodes. |
| USB-C PD Adapters | LED Driver Power Supplies |
Use Scenario: Output rectification in compact 65W GaN-based USB-C PD adapter with tight thermal envelope. IC Role / Device Role / Timing Role: Primary output rectifier delivering up to 12A at 20V with minimal voltage drop. Use Value: DO-201AD package with RθJL = 3°C/W allows direct copper pour attachment, eliminating need for discrete heatsink. | Use Scenario: Constant-current LED driver for commercial lighting with 24V input and 700mA output. IC Role / Device Role / Timing Role: Flyback secondary rectifier subjected to repeated 100A surge pulses during cold-start. Use Value: 320A IFSM rating ensures no degradation after 10,000+ cold-start cycles per IEC 62368-1. |
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-12EWH02-M3 | 20V VRRM, 12A IF, but TO-277 package (surface-mount); RθJA = 40°C/W vs. SR1202H A0G's 24°C/W | Requires PCB rework for SMT assembly; less suitable for through-hole legacy designs or high-surge manual assembly | Select when automated SMT production and board space constraints outweigh thermal advantage of DO-201AD |
| ON Semiconductor MBR1220CT | Dual common-cathode configuration (12A per die), 20V VRRM, TO-220AC package; higher RθJA (50°C/W) and no AEC-Q101 qualification | Not automotive-qualified; dual-die layout increases footprint and complicates single-output designs | Choose only for cost-sensitive industrial applications where AEC-Q101 is not required and dual outputs are needed |
Compared with VS-12EWH02-M3 and MBR1220CT, SR1202H A0G uniquely combines AEC-Q101 compliance, axial DO-201AD form factor, and superior thermal resistance (RθJL = 3°C/W), making it optimal for automotive and thermally constrained through-hole power supplies.
Availability
SR1202H A0G is available at Aetrix Electronics and suitable for automotive power modules, industrial SMPS, and USB-C PD adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SR1202H 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The SR1202H A0G belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-reliability, high-efficiency secondary-side rectification in 12V–48V automotive and industrial power systems.
FAQ
What is the peak repetitive reverse voltage rating for SR1202H A0G?
The SR1202H A0G has a peak repetitive reverse voltage (VRRM) rating of 20 V. This value is confirmed in the Absolute Maximum Ratings table on page 2 of the official Taiwan Semiconductor datasheet (Version G2105). It defines the maximum DC or sinusoidal AC reverse voltage the device can block continuously without breakdown. The SR1202H A0G is part of the SR1202–SR1204 family, where "02" denotes the 20V variant.
Is SR1202H A0G qualified to AEC-Q101 standards?
Yes, SR1202H A0G is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in the ordering code and confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing (uHAST), validating its suitability for automotive under-hood applications.
What does the "A0G" suffix mean in SR1202H A0G?
The "A0G" suffix in SR1202H A0G indicates two attributes: "A0" specifies the packing method (500 units per ammo box), and "G" denotes green (halogen-free) molding compound compliant with IEC 61249-2-21. This is defined in the ORDERING INFORMATION table on page 3 of the Taiwan Semiconductor SR1202–SR1204 datasheet (Version G2105).
What is the forward voltage drop of SR1202H A0G at 12A and 25°C?
At 12A forward current and 25°C junction temperature, the SR1202H A0G exhibits a maximum forward voltage drop (VF) of 0.55 V, as specified in the ELECTRICAL SPECIFICATIONS table. This value is measured under pulse conditions (PW = 0.3 ms) and reflects worst-case conduction loss at full rated current.
Does SR1202H A0G have a guard ring structure?
Yes, SR1202H A0G incorporates a guard ring structure for overvoltage protection, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This design feature suppresses edge breakdown during transient voltage events, enhancing ruggedness in automotive and industrial power systems subject to load dump or inductive switching noise.
SR1202H A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 20 V
- Current - Average Rectified (Io):
- 12A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 12 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 20 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
SR1202H A0G FAQ
1.How can I place an order for SR1202H A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR1202H 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 SR1202H A0G reliable?
The price and inventory of SR1202H A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR1202H A0G is usually 5 days.
3.What payment methods are accepted for SR1202H A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR1202H A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR1202H A0G?
SR1202H A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR1202H 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 SR1202H A0G?
For technical support, including SR1202H A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR1202H A0G requirements.
6.How does Aetrix verify that SR1202H A0G is sourced from the original manufacturer or authorized distributors?
All SR1202H 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 SR1202H A0G meets industry standards.
7.What is the process for return or replacement of SR1202H A0G?
All SR1202H A0G units undergo pre-shipment inspection (PSI). If there is an issue with SR1202H 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 SR1202H A0G part is unused and in its original packaging.
Return procedure for SR1202H A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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