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Taiwan Semiconductor Corporation SR803HR0G
- Part No.:
- SR803HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR803HR0G.pdf
- Description:
- DIODE SCHOTTKY 30V 8A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:5,326
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Product details
Overview
SR803HR0G from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 30V Schottky barrier rectifier in DO-201AD package, featuring 0.55V forward voltage at 8A/25°C, 150A surge capability, and guard ring overvoltage protection - used in automotive-grade DC-DC converters and industrial SMPS.
For engineers reviewing the SR803HR0G datasheet, SR803HR0G pinout, SR803HR0G application, or SR803HR0G equivalent, key selection criteria include its 30V VRRM, 150A IFSM, AEC-Q101 qualification, DO-201AD thermal resistance (40°C/W), and cathode-band polarity marking for reliable high-current rectification in harsh environments.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring structure to enhance dv/dt immunity (10,000 V/µs) and transient overvoltage robustness. Its low VF enables high-efficiency operation at 8A continuous forward current, while junction temperature range extends to +150°C for under-hood automotive use.
Thermal performance is defined by RθJA = 40°C/W in standard PCB mounting, and reverse leakage remains ≤500 µA at 25°C and ≤15 mA at 100°C - critical for maintaining efficiency in compact, thermally constrained power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse voltage; sets safe operating limit in 24V automotive systems. |
| IF | 8 A - Continuous forward current rating; supports high-power DC-DC output stages without derating at 75°C ambient. |
| IFSM | 150 A - Non-repetitive surge current (8.3ms half-sine); withstands inrush and fault transients in power supplies. |
| VF | 0.55 V @ 8A, 25°C - Low conduction loss; reduces heat generation and improves system efficiency vs. silicon diodes. |
| TJ max | +150°C - Extended junction temperature rating; enables operation in engine bay or industrial enclosures without forced cooling. |
| RθJA | 40°C/W - Junction-to-ambient thermal resistance; defines required PCB copper area and heatsinking for thermal management. |
| IR | ≤500 µA @ 30V, 25°C - Low reverse leakage; minimizes standby power loss in always-on circuits. |
Pinout & Package
DO-201AD axial-leaded package with cathode indicated by band; leads are pure tin-plated per J-STD-002, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input | Connected to lower-potential side (e.g., ground or return path) in rectifier configuration. |
| Cathode | Forward current output / reverse blocking terminal | Marked with band; connects to positive rail; blocks up to 30V reverse voltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS power rails. |
| Guard ring structure | Improves ruggedness against voltage transients and edge breakdown in high-dv/dt switching environments. |
| Low 0.55V forward drop | Reduces conduction loss by >40% vs. comparable silicon rectifiers, lowering thermal stress in 8A designs. |
| 150A surge rating | Supports cold-crank and load-dump events in 12V/24V vehicle electrical systems without failure. |
| DO-201AD mechanical robustness | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term reliability in vibration-prone assemblies. |
Applications
| Automotive DC-DC Converters | Industrial SMPS Outputs |
|---|---|
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 8A load with minimal conduction loss. Use Value: 0.55V VF reduces power dissipation by ~2.5W vs. silicon alternative, enabling natural convection cooling. | Use Scenario: Secondary-side rectification in 48V telecom rectifier modules. IC Role / Device Role / Timing Role: Unidirectional current path delivering regulated DC output with fast recovery. Use Value: 150A IFSM sustains short-circuit protection cycles without degradation in high-reliability infrastructure. |
| USB-C PD Adapters | LED Driver Power Stages |
Use Scenario: Synchronous rectification replacement in 65W USB-C charger secondary side. IC Role / Device Role / Timing Role: Low-loss freewheeling path during MOSFET off-time in flyback topology. Use Value: Guard ring design prevents premature breakdown during high-frequency switching edge ringing. | Use Scenario: Constant-current LED string supply in outdoor signage with wide ambient temperature range. IC Role / Device Role / Timing Role: Main rectifier converting AC line-derived DC bus to stable LED drive voltage. Use Value: +150°C TJ max ensures uninterrupted operation at 85°C ambient with full 8A rating. |
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-8EWH03-M3/45 | Same 30V VRRM, 8A IF, but TO-277 package (surface-mount); 0.52V VF at 8A. | Requires rework of through-hole layout; better suited for automated SMT production. | Select when board space is constrained and SMT assembly is available. |
| ON Semiconductor SB830-E3/54 | 30V VRRM, 8A IF, DO-201AD package, but not AEC-Q101 qualified; 0.57V VF. | Lacks automotive qualification; suitable only for commercial/industrial grade systems. | Select for cost-sensitive non-automotive applications where AEC-Q101 is not mandated. |
Compared with VS-8EWH03-M3/45 and SB830-E3/54, SR803HR0G uniquely combines AEC-Q101 qualification, DO-201AD through-hole compatibility, and 0.55V forward drop - making it the preferred choice for automotive and high-reliability industrial rectification where qualification and legacy assembly methods matter.
Availability
SR803HR0G is available at Aetrix Electronics and suitable for automotive power conversion, industrial SMPS, and LED driver applications requiring stable component supply and long-term lifecycle support.
Supply support for SR803HR0G 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, serving global automotive, industrial, and consumer markets since 1979.
The SR802–SR820 series was designed specifically for high-current, high-reliability rectification in automotive and industrial power supplies - emphasizing AEC-Q101 compliance, thermal robustness, and surge resilience.
FAQ
What is the peak repetitive reverse voltage rating for SR803HR0G?
The SR803HR0G has a peak repetitive reverse voltage (VRRM) rating of 30 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2105). It defines the maximum reverse-biased voltage the device can block continuously without breakdown, making SR803HR0G suitable for 24V automotive and 36V industrial bus applications.
Is SR803HR0G qualified to AEC-Q101 standards?
Yes, SR803HR0G is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including HTSL, TC, UHAST, and ESD, validating SR803HR0G for use in automotive powertrain, chassis, and body electronics where reliability under temperature cycling and vibration is critical.
What is the forward voltage drop of SR803HR0G at rated current?
The SR803HR0G exhibits a typical forward voltage (VF) of 0.55 V at 8 A and 25°C, per the Electrical Specifications table. This low VF is measured under pulsed conditions (PW = 0.3 ms) and directly contributes to reduced conduction losses - a key advantage over silicon rectifiers in high-efficiency power supplies using SR803HR0G.
What package type does SR803HR0G use, and what are its mechanical features?
SR803HR0G uses the DO-201AD axial-leaded package. Key mechanical features include UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002, JESD201 Class 2 whisker resistance, and cathode polarity marked by a visible band. Its weight is approximately 1.10 g, and it supports manual or wave soldering processes.
Does SR803HR0G have surge current capability, and how is it specified?
Yes, SR803HR0G has a non-repetitive peak forward surge current (IFSM) rating of 150 A, tested per 8.3 ms single half-sine wave per JEDEC standards. This rating is documented in the Absolute Maximum Ratings table and enables SR803HR0G to survive inrush currents and fault transients in automotive and industrial power systems without degradation.
SR803HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 125°C
SR803HR0G FAQ
1.How can I place an order for SR803HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR803HR0G 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 SR803HR0G reliable?
The price and inventory of SR803HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR803HR0G is usually 5 days.
3.What payment methods are accepted for SR803HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR803HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR803HR0G?
SR803HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR803HR0G 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 SR803HR0G?
For technical support, including SR803HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR803HR0G requirements.
6.How does Aetrix verify that SR803HR0G is sourced from the original manufacturer or authorized distributors?
All SR803HR0G 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 SR803HR0G meets industry standards.
7.What is the process for return or replacement of SR803HR0G?
All SR803HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR803HR0G, 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 SR803HR0G part is unused and in its original packaging.
Return procedure for SR803HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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