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Taiwan Semiconductor Corporation SR105HR0G
- Part No.:
- SR105HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SR105HR0G.pdf
- Description:
- DIODE SCHOTTKY 50V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,591
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Product details
Overview
SR105HR0G from Taiwan Semiconductor is a 1A, 50V AEC-Q101-qualified Schottky barrier rectifier in DO-204AL (DO-41) package, featuring 0.70V max forward voltage at 1A/25°C, 30A surge capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and industrial power adapters.
For engineers reviewing the SR105HR0G datasheet, SR105HR0G pinout, SR105HR0G application, or SR105HR0G equivalent, key selection criteria include its AEC-Q101 qualification, 50V VRRM, 125°C junction rating, low VF performance, and DO-41 mechanical compatibility with legacy through-hole power designs.
Technical Context
This discrete Schottky diode operates as a unidirectional power rectifier with single-die construction and cathode-band polarity marking. Its guard ring structure enhances ruggedness against transient overvoltage events, while the pure tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
Thermal performance is defined by a 90°C/W junction-to-ambient resistance. The device supports continuous 1A forward current at up to 125°C junction temperature, with reverse leakage limited to 500µA at 25°C and 5mA at 100°C under rated 50V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; sets upper limit for DC bus or output rail voltage in SMPS designs |
| IF | 1 A - Continuous average forward current rating at TA = 75°C; defines steady-state power handling capacity |
| IFSM | 30 A - Non-repetitive peak surge current (8.3ms half-sine); enables robustness against input line transients |
| VF @ 1A, 25°C | ≤0.70 V - Low conduction loss directly reduces heat generation and improves system efficiency |
| TJ max | 125 °C - Maximum operating junction temperature; allows use in under-hood automotive environments |
| RθJA | 90 °C/W - Thermal resistance without heatsink; determines required PCB copper area for thermal management |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, epoxy-molded case with UL 94V-0 flammability rating and cathode band polarity indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in rectification topology |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; connects to positive output or high-side node; blocks reverse current up to 50V |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics requiring reliability under thermal cycling and vibration |
| Guard ring structure | Improves dv/dt immunity and prevents premature avalanche breakdown during fast voltage transients |
| Low VF (≤0.70 V) | Reduces conduction loss by ~30% vs. comparable 1A silicon rectifiers, lowering thermal stress in compact adapters |
| Pure tin plating | Ensures reliable solder wetting and long-term intermetallic stability per J-STD-002, critical for high-volume manufacturing |
| Halogen-free compound | Complies with IEC 61249-2-21, supporting RoHS and environmental compliance in end-market products |
Applications
| Automotive DC-DC Converters | Industrial Power Adapters |
|---|---|
Use Scenario: Step-down conversion in 12V–48V vehicle subsystems powering infotainment and ADAS sensors. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck converter stage. Use Value: AEC-Q101 qualification and 125°C operation ensure reliability across temperature extremes encountered in automotive cabins. | Use Scenario: AC-DC adapter for industrial instrumentation requiring stable 5V/12V rails. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in flyback or forward converter outputs. Use Value: 0.70V VF minimizes power loss and simplifies thermal design in enclosed, convection-cooled enclosures. |
| Telecom Power Supplies | Consumer Charging Adapters |
Use Scenario: High-efficiency rectification in telecom shelf power modules delivering +54V or +48V outputs. IC Role / Device Role / Timing Role: OR-ing diode or output rectifier in distributed power architecture. Use Value: 30A IFSM withstands hot-swap surges and load-dump transients common in telecom infrastructure. | Use Scenario: USB-C PD-compatible wall adapters delivering up to 65W output. IC Role / Device Role / Timing Role: Secondary-side rectifier in quasi-resonant flyback topologies. Use Value: DO-41 package enables cost-effective through-hole assembly while meeting energy efficiency standards like DoE Level VI. |
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-1EJH05-M3/5AT | Same 1A/50V rating, but TO-277 surface-mount package; VF = 0.65V typ at 1A | Requires SMT reflow process and PCB redesign; unsuitable for through-hole legacy production | Select when migrating to automated SMT lines and board space is constrained |
| ON Semiconductor SB150 | 1A/50V, DO-41, VF = 0.72V max, non-AEC-Q101 rated, TJ max = 125°C | Lacks automotive qualification; reverse leakage higher (1000µA @ 25°C vs. 500µA for SR105HR0G) | Acceptable for commercial-grade adapters where AEC-Q101 is not mandated |
Compared with VS-1EJH05-M3/5AT and SB150, the SR105HR0G uniquely combines AEC-Q101 qualification, DO-41 through-hole compatibility, and tighter 500µA IR spec-making it optimal for automotive and industrial designs requiring drop-in reliability without layout change.
Availability
SR105HR0G is available at Aetrix Electronics and suitable for automotive power modules, industrial DC-DC converters, and consumer charging adapters requiring stable component supply and long-term manufacturability.
Supply support for SR105HR0G 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 SR102–SR115 series was designed specifically for high-reliability, cost-sensitive power rectification in automotive and industrial applications-emphasizing AEC-Q101 compliance, thermal robustness, and DO-41 backward compatibility.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the SR105HR0G?
The SR105HR0G has a VRRM of 50 V, meaning it can reliably block up to 50 volts of reverse-biased DC or peak AC voltage without breakdown. This rating is confirmed in the Absolute Maximum Ratings table on page 1 of the G2104 datasheet and applies across the full operating temperature range.
Is the SR105HR0G AEC-Q101 qualified?
Yes, the "H" suffix in SR105HR0G explicitly denotes AEC-Q101 qualification per the Ordering Information section (page 3 of G2104). This certification covers stress testing for temperature cycling, humidity, mechanical shock, and ESD-validating suitability for automotive electronic control units and body electronics.
What is the forward voltage (VF) specification for the SR105HR0G at rated current?
The SR105HR0G has a maximum forward voltage of 0.70 V at IF = 1 A and TJ = 25°C, as specified in the Electrical Specifications table (page 2 of G2104). This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating effects during test.
Does the SR105HR0G have a guard ring structure?
Yes, the SR105HR0G incorporates a guard ring for overvoltage protection, as stated in the FEATURES section (page 1 of G2104). This design feature improves edge termination robustness and raises the critical dv/dt threshold to 10,000 V/µs, enhancing reliability during fast-switching transients.
What packaging options are available for the SR105HR0G?
The SR105HR0G is supplied in DO-204AL (DO-41) package with tape-and-reel packing: 5,000 units per reel. The "R0G" suffix indicates green compound and tape-and-reel format, consistent with TSC's ordering code convention defined in the Ordering Information table (page 3 of G2104).
SR105HR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR105HR0G FAQ
1.How can I place an order for SR105HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR105HR0G 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 SR105HR0G reliable?
The price and inventory of SR105HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR105HR0G is usually 5 days.
3.What payment methods are accepted for SR105HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR105HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR105HR0G?
SR105HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR105HR0G 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 SR105HR0G?
For technical support, including SR105HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR105HR0G requirements.
6.How does Aetrix verify that SR105HR0G is sourced from the original manufacturer or authorized distributors?
All SR105HR0G 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 SR105HR0G meets industry standards.
7.What is the process for return or replacement of SR105HR0G?
All SR105HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR105HR0G, 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 SR105HR0G part is unused and in its original packaging.
Return procedure for SR105HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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