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Taiwan Semiconductor Corporation SR003HR1G
- Part No.:
- SR003HR1G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SR003HR1G.pdf
- Description:
- DIODE SCHOTTKY 30V 500MA DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,317
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Product details
Overview
SR003HR1G from Taiwan Semiconductor is a 30 V, 0.5 A AEC-Q101-qualified Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.55 V forward voltage at 0.5 A and 500 µA reverse leakage at 25°C, used in automotive-grade DC-DC converters and power adapters.
For engineers reviewing the SR003HR1G datasheet, SR003HR1G pinout, SR003HR1G application, or SR003HR1G equivalent, key selection criteria include its AEC-Q101 qualification, 30 V repetitive peak reverse voltage, 30 A surge capability, junction temperature range up to +150°C, and DO-41 mechanical compatibility with standard through-hole PCB layouts.
Technical Context
This Schottky rectifier uses a single-die construction with guard ring overvoltage protection and pure tin-plated leads compliant with J-STD-002 solderability. Its low VF enables high-efficiency operation in high-frequency switching topologies.
Thermal resistance is 50°C/W junction-to-ambient, and junction capacitance is 110 pF at 1 MHz and 4.0 V reverse bias - parameters critical for EMI control and dynamic response in SMPS designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - maximum repetitive reverse blocking voltage; defines safe operating limit in rectification circuits |
| IF | 0.5 A - continuous forward current rating; determines steady-state power delivery capacity |
| VF @ 0.5A, 25°C | 0.55 V - low conduction loss enabling >90% efficiency in low-voltage DC-DC stages |
| IR @ 30V, 25°C | 500 µA - minimal reverse leakage preserves standby power integrity in always-on systems |
| IFSM | 30 A - non-repetitive surge withstand capability for inrush and fault transient immunity |
| TJ max | +150°C - extended thermal operating range supports under-hood automotive deployment |
| RθJA | 50°C/W - thermal performance baseline for board-level heatsinking and layout planning |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, cathode indicated by band. Lead finish: pure tin, J-STD-002 compliant. Weight: 0.330 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node or ground return) in buck/flyback configurations |
| Cathode | Current exit point during forward conduction; polarity-marked terminal | Connected to output rail or higher-potential node; reverse-biased during off-state to block voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment power rails |
| Guard ring structure | Enhances ruggedness against transient overvoltage events without external snubbers |
| Low VF (0.55 V) | Reduces conduction loss by ~40% vs. comparable silicon diodes, lowering thermal load in compact adapters |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and global environmental directives for automotive and industrial use |
| Junction-to-ambient RθJA = 50°C/W | Enables natural-convection cooling in space-constrained enclosures without forced airflow |
Applications
| Automotive Body Control Module (BCM) | USB-C Power Adapter |
|---|---|
Use Scenario: 12 V input rectification and 5 V/3.3 V auxiliary rail generation in BCM sub-systems. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous buck converter feeding microcontroller and CAN transceiver supplies. Use Value: AEC-Q101 qualification ensures reliability across -40°C to +125°C ambient; low VF minimizes heat buildup in sealed modules. | Use Scenario: Secondary-side rectification in 20–65 W USB PD adapters with high-frequency flyback topology. IC Role / Device Role / Timing Role: Fast-recovery output diode replacing conventional silicon rectifiers to improve efficiency and reduce heatsink size. Use Value: 30 A surge rating handles repeated plug-in surges; 110 pF junction capacitance limits high-frequency ringing and EMI filter burden. |
| Industrial PLC I/O Power Supply | LED Driver Auxiliary Rail |
Use Scenario: Isolated 24 V DC input conditioning and local 5 V logic rail generation in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Input-stage rectifier for isolated DC-DC module powering digital I/O isolators and communication interfaces. Use Value: 150°C max junction temperature supports operation in enclosed cabinets with ambient up to 70°C; DO-41 footprint simplifies legacy board reuse. | Use Scenario: Bias supply rectification for constant-current LED driver ICs in streetlight and architectural lighting fixtures. IC Role / Device Role / Timing Role: Low-loss rectifier in auxiliary winding circuit powering gate drivers and feedback optocouplers. Use Value: 500 µA reverse leakage at 25°C prevents standby current drift in dimming-critical applications; RoHS/halogen-free compliance meets outdoor lighting safety standards. |
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-30BQ030-M3/45 | Same 30 V VRRM, 0.5 A IF, but TO-277 surface-mount package; VF = 0.52 V typical | Requires SMT reflow process and PCB redesign; unsuitable for through-hole legacy boards | Select when migrating to compact, automated assembly and thermal pad integration is feasible |
| ON Semiconductor SB0530 | 30 V VRRM, 0.5 A IF, DO-41 package, but not AEC-Q101 qualified; VF = 0.57 V max | Lacks automotive stress validation; limited to commercial/industrial environments only | Select only for cost-sensitive non-automotive applications where qualification is not mandated |
Compared with VS-30BQ030-M3/45 and SB0530, SR003HR1G uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and 0.55 V VF - making it the only drop-in solution for automotive retrofit designs requiring zero layout change and certified reliability.
Availability
SR003HR1G is available at Aetrix Electronics and suitable for automotive body electronics, USB-C power adapters, and industrial PLC power supplies requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SR003HR1G 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 automotive, industrial, and consumer markets since 1979.
The SR002–SR010 series was designed specifically for high-reliability, low-loss rectification in automotive power systems and compact AC-DC adapters - emphasizing AEC-Q101 compliance, thermal robustness, and manufacturability in high-volume through-hole assembly.
FAQ
What is the peak repetitive reverse voltage rating of SR003HR1G?
The SR003HR1G 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 H2104). Exceeding this voltage risks irreversible breakdown. The SR003HR1G must be selected only in circuits where reverse voltage transients remain within this 30 V limit, such as 12 V automotive systems or 24 V industrial rails with appropriate clamping.
Is SR003HR1G qualified for automotive applications?
Yes, SR003HR1G is AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and explicitly stated in the FEATURES section of the datasheet. This qualification covers stress tests including temperature cycling, humidity bias, and high-temperature operating life - validating its suitability for under-hood and cabin electronics. The SR003HR1G is intended for automotive use cases where reliability across -40°C to +125°C junction temperature is required.
What is the forward voltage drop of SR003HR1G at rated current?
The SR003HR1G exhibits a typical forward voltage (VF) of 0.55 V at IF = 0.5 A and TJ = 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated temperatures or higher currents, VF decreases slightly due to Schottky physics, but design margins should be based on the 0.55 V typical value for thermal and efficiency calculations.
Does SR003HR1G have a specified junction capacitance?
Yes, SR003HR1G has a typical junction capacitance (CJ) of 110 pF at 1 MHz and VR = 4.0 V, as published in the Electrical Specifications table. This parameter directly impacts high-frequency switching noise and EMI filter design. The value applies to the SR002–SR004 subgroup, which includes SR003HR1G, and is verified under standardized test conditions per JEDEC guidelines.
What packaging options are available for SR003HR1G?
SR003HR1G is supplied in DO-204AL (DO-41) package with two standard packing formats: 5,000 units per tape-and-reel (ordering code ending in "R1G") and 3,000 units per ammo box (ending in "A0G"). The "R1G" suffix confirms tape-and-reel delivery. Both variants share identical electrical and thermal specifications; the choice depends solely on assembly line requirements - reel for automated pick-and-place, ammo for manual or semi-automated insertion.
SR003HR1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 500mA
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 500 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 30 V
- Capacitance @ Vr, F:
- 110pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SR003HR1G FAQ
1.How can I place an order for SR003HR1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR003HR1G 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 SR003HR1G reliable?
The price and inventory of SR003HR1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR003HR1G is usually 5 days.
3.What payment methods are accepted for SR003HR1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR003HR1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR003HR1G?
SR003HR1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR003HR1G 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 SR003HR1G?
For technical support, including SR003HR1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR003HR1G requirements.
6.How does Aetrix verify that SR003HR1G is sourced from the original manufacturer or authorized distributors?
All SR003HR1G 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 SR003HR1G meets industry standards.
7.What is the process for return or replacement of SR003HR1G?
All SR003HR1G units undergo pre-shipment inspection (PSI). If there is an issue with SR003HR1G, 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 SR003HR1G part is unused and in its original packaging.
Return procedure for SR003HR1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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