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Taiwan Semiconductor Corporation SR805HR0G
- Part No.:
- SR805HR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SR805HR0G.pdf
- Description:
- DIODE SCHOTTKY 50V 8A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,686
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Product details
Overview
SR805HR0G from Taiwan Semiconductor is an AEC-Q101-qualified 8A, 50V Schottky barrier rectifier in DO-201AD package, featuring 0.70V max 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 SR805HR0G datasheet, SR805HR0G pinout, SR805HR0G application, or SR805HR0G equivalent, key selection criteria include its 50V VRRM, 10mA reverse leakage at 100°C, -55°C to +150°C junction range, DO-201AD mechanical compatibility, and AEC-Q101 qualification for under-hood power conversion.
Technical Context
This single-die Schottky rectifier uses a planar construction with guard ring termination to sustain high dv/dt (10,000 V/µs) and suppress avalanche-induced failure. Its low VF enables high-efficiency operation in continuous conduction mode (CCM) topologies where thermal management is constrained.
The device operates across -55°C to +150°C junction temperature, with RθJA = 40°C/W enabling 8A DC current handling at ≤75°C ambient in standard PCB layouts. Reverse leakage remains ≤10mA up to 100°C, supporting stable performance in thermally demanding automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage; defines safe blocking capability in 48V automotive bus and 36V industrial DC-DC designs. |
| IF | 8 A - Continuous forward current rating; supports high-density power stages without forced air cooling. |
| VF (max) | 0.70 V @ 8A, 25°C - Low conduction loss reduces heat generation and improves system efficiency above 90% in buck-derived topologies. |
| IFSM | 150 A - Non-repetitive surge rating; withstands inrush and fault currents in hot-plug and load-dump scenarios. |
| TJ max | +150°C - Extended junction temperature rating enables use in engine bay or enclosed industrial enclosures without derating. |
| dv/dt | 10,000 V/µs - High critical rate-of-rise tolerance prevents false turn-on during fast-switching transients in SiC/GaN-based converters. |
| RθJA | 40°C/W - Thermal resistance from junction to ambient; allows 8A operation with ≤75°C board temperature on 1-in² 2-oz copper pad. |
Pinout & Package
DO-201AD axial-leaded package with cathode band marking; leads are pure tin plated per J-STD-002, UL 94V-0 molded compound, 1.10g typical weight, and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to input/source side of rectification path; requires thermal relief pad for soldering and heat dissipation. |
| Cathode | Forward current exit / reverse voltage reference | Marked by colored band; ties to output/load ground or return node; must maintain clean layout to minimize parasitic inductance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control units and ADAS power supplies. |
| Guard ring overvoltage protection | Prevents edge breakdown under transient overvoltage, improving reliability in unregulated 12V/24V/48V systems. |
| Low 0.70V VF at full load | Reduces conduction loss by ~30% vs. comparable 50V silicon diodes, lowering thermal stress in compact converters. |
| 150A IFSM surge rating | Supports robust start-up and short-circuit survival without external fusing in 8A-rated power rails. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment. |
Applications
| Automotive DC-DC Converters | Industrial SMPS |
|---|---|
Use Scenario: 12V-to-5V/3.3V buck converter in vehicle infotainment head units with load dump transients. IC Role / Device Role / Timing Role: Output rectifier handling continuous 8A output current while surviving ISO 7637-2 pulse 5a/b surges. Use Value: AEC-Q101 qualification and 150A IFSM ensure compliance with automotive EMC and reliability standards without added TVS clamping. | Use Scenario: Secondary-side synchronous rectification replacement in 48V telecom rectifiers operating at 85°C ambient. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward topology, conducting during MOSFET off-time. Use Value: 0.70V VF minimizes conduction loss at high duty cycles, improving full-load efficiency by ≥1.2% versus standard FRDs. |
| Server PSU OR-ing Diodes | Renewable Energy Charge Controllers |
Use Scenario: OR-ing diode in redundant 12V server backplane power distribution with hot-swap capability. IC Role / Device Role / Timing Role: Unidirectional current path preventing backfeed between parallel PSUs during insertion/removal. Use Value: Low VF reduces voltage drop and heat generation, enabling higher current density without airflow dependency. | Use Scenario: Blocking diode in 48V solar charge controller connecting PV array to battery bank with partial shading events. IC Role / Device Role / Timing Role: Prevents reverse current flow from battery to panel during night or low-light conditions. Use Value: 10mA IR at 100°C ensures minimal leakage loss over extended outdoor thermal cycling, preserving battery capacity. |
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-8EWH05FN-M3/45 | Same DO-201AD package, 8A/50V, but VF = 0.65V typ (25°C); no AEC-Q101 documentation confirmed. | Not certified for automotive use; suitable for commercial/industrial only. | Select when lower VF is prioritized over qualification evidence in non-automotive designs. |
| ON Semiconductor SB850 | DO-201AD, 8A/50V, VF = 0.72V max, AEC-Q101 qualified, but IFSM = 120A (vs. 150A). | Limited surge margin in high-energy fault conditions like load dump. | Choose when supply chain diversification is needed and 120A surge is sufficient for target application stress profile. |
Compared with VS-8EWH05FN-M3/45 and SB850, SR805HR0G uniquely combines AEC-Q101 certification, 150A surge rating, and 0.70V VF in a single DO-201AD offering-making it optimal for automotive and high-reliability industrial rectification where both qualification and transient robustness are mandatory.
Availability
SR805HR0G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial SMPS, and renewable energy charge controllers requiring stable component supply with long-term lifecycle assurance.
Supply support for SR805HR0G 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 computing markets since 1979.
The SR802–SR820 family was designed specifically for high-current, high-reliability Schottky rectification in automotive power systems and ruggedized industrial supplies-emphasizing AEC-Q101 compliance, thermal robustness, and surge resilience.
FAQ
What is the peak repetitive reverse voltage rating for SR805HR0G?
The SR805HR0G has a peak repetitive reverse voltage (VRRM) rating of 50 V, verified per Taiwan Semiconductor's J2105 datasheet revision. This value defines the maximum DC or sinusoidal reverse voltage the device can block continuously without breakdown, making it suitable for 48V nominal systems with safety margin.
Is SR805HR0G qualified to AEC-Q101 standards?
Yes, SR805HR0G is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the "FEATURES" section of the official datasheet. This qualification covers stress tests including HTGB, HTRB, TCT, and ESD, validating its suitability for automotive under-hood applications.
What is the maximum forward voltage of SR805HR0G at rated current?
The SR805HR0G has a maximum forward voltage (VF) of 0.70 V at 8 A and 25°C junction temperature, per the "ELECTRICAL SPECIFICATIONS" table. At 100°C, VF decreases slightly due to negative temperature coefficient, remaining below 0.65 V under typical operating conditions.
Does SR805HR0G have a specified thermal resistance value?
Yes, SR805HR0G has a junction-to-ambient thermal resistance (RθJA) of 40°C/W, measured on a standard JEDEC test board per the "THERMAL PERFORMANCE" section. This value assumes a 1-in² 2-oz copper pad and natural convection; actual board layout will affect real-world thermal performance.
What packaging options are available for SR805HR0G?
SR805HR0G is supplied in DO-201AD package with two packing formats: 1,250 pieces per tape-and-reel (standard) and 500 pieces per ammo box (SR805HR0G A0G). Both options feature pure tin-plated leads, UL 94V-0 molding compound, and JESD 201 Class 2 whisker resistance.
SR805HR0G 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):
- 50 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 700 mV @ 8 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-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SR805HR0G FAQ
1.How can I place an order for SR805HR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SR805HR0G 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 SR805HR0G reliable?
The price and inventory of SR805HR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SR805HR0G is usually 5 days.
3.What payment methods are accepted for SR805HR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SR805HR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SR805HR0G?
SR805HR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SR805HR0G 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 SR805HR0G?
For technical support, including SR805HR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SR805HR0G requirements.
6.How does Aetrix verify that SR805HR0G is sourced from the original manufacturer or authorized distributors?
All SR805HR0G 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 SR805HR0G meets industry standards.
7.What is the process for return or replacement of SR805HR0G?
All SR805HR0G units undergo pre-shipment inspection (PSI). If there is an issue with SR805HR0G, 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 SR805HR0G part is unused and in its original packaging.
Return procedure for SR805HR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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