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Taiwan Semiconductor Corporation SF17GHR0G
- Part No.:
- SF17GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
SF17GHR0G.pdf
- Description:
- DIODE GEN PURP 500V 1A DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,427
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Product details
Overview
SF17GHR0G from Taiwan Semiconductor is a 500 V, 1 A super fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 1.70 V forward voltage at 1 A and 35 ns reverse recovery time, used in freewheeling paths and DC-DC converter secondary-side rectification.
For engineers reviewing the SF17GHR0G datasheet, SF17GHR0G pinout, SF17GHR0G application, or SF17GHR0G equivalent, key selection criteria include peak reverse voltage rating (500 V), low VF for thermal efficiency, fast trr for high-frequency switching, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This single-die silicon rectifier operates with a maximum junction temperature of 150 °C and exhibits 10 pF junction capacitance at 1 MHz and 4.0 V reverse bias. Its 35 ns reverse recovery time enables use in 100–500 kHz switching topologies.
The device supports 30 A non-repetitive surge current (8.3 ms half-sine) and achieves 20 °C/W junction-to-lead thermal resistance, enabling direct PCB trace heat sinking without auxiliary heatsinking in moderate-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - Withstands up to 500 V repetitive reverse voltage without breakdown, suitable for 380 VAC input-derived DC bus systems. |
| IF | 1 A continuous - Rated average forward current defines steady-state conduction capability in continuous conduction mode (CCM) operation. |
| VF @ 1 A, 25°C | 1.70 V - Forward voltage drop directly determines conduction loss (1.7 W at 1 A), impacting thermal design and efficiency. |
| trr | 35 ns - Fast reverse recovery minimizes switching loss and EMI in high-frequency SMPS designs above 100 kHz. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance enables reliable thermal transfer to PCB copper, supporting >0.8 A derated current at 70 °C ambient. |
| IR @ 500 V, 25°C | 5 µA - Low leakage ensures minimal standby power loss and stable voltage hold-up in hold-off circuits. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with cathode band polarity marking. Lead finish: pure tin, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return path). |
| Cathode | Forward current exit point | Connected to output rail or filter capacitor positive; marked by visible band on body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test requirements including temperature cycling, HTRB, and ESD. |
| Super fast recovery (trr ≤ 35 ns) | Enables efficient operation in high-frequency flyback and forward converters without snubber networks. |
| Low VF (1.70 V @ 1 A) | Reduces conduction loss by ~15% versus standard fast rectifiers (e.g., 1N4937), improving system efficiency at light-to-moderate loads. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive, supporting green manufacturing and end-of-life recycling. |
Applications
| DC-DC Converter Secondary Rectification | Automotive On-Board Charger (OBC) Auxiliary Supply |
|---|---|
Use Scenario: Rectifying high-frequency transformer secondary output in isolated 12 V/1 A auxiliary supply for vehicle infotainment and ADAS modules. IC Role / Device Role / Timing Role: Power conversion device performing unidirectional current conduction and energy transfer during flyback duty cycle. Use Value: 35 ns trr prevents cross-conduction loss during MOSFET turn-on; 500 V VRRM accommodates reflected voltage spikes in 400 V battery-referenced systems. | Use Scenario: Freewheeling diode across relay coils and solenoid drivers in OBC control board power sequencing circuits. IC Role / Device Role / Timing Role: Clamp inductive kickback energy and provide safe current recirculation path during de-energization. Use Value: 30 A IFSM withstands transient surges from 12 V/24 V coil de-energization; AEC-Q101 qualification ensures long-term reliability in vibration-prone environments. |
| Industrial SMPS Hold-Up Capacitor Charging | LED Driver Flyback Output Rectification |
Use Scenario: Charging bulk electrolytic capacitors after bridge rectification in 24 V/1 A industrial AC-DC power supplies. IC Role / Device Role / Timing Role: Unidirectional conduction element delivering net DC current while blocking reverse AC components. Use Value: 1.70 V VF limits self-heating during continuous charging; DO-41 package allows manual insertion and wave soldering in legacy production lines. | Use Scenario: Output rectification in 36 V/0.35 A constant-current LED driver operating at 65 kHz switching frequency. IC Role / Device Role / Timing Role: High-speed rectifier converting transformer AC output to regulated DC for LED string biasing. Use Value: 10 pF CJ minimizes capacitive coupling noise into feedback loop; 5 µA IR ensures stable open-circuit voltage during dimming intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EFH05-M3/54 | Same DO-41 package, 500 V VRRM, but VF = 1.75 V @ 1 A and trr = 50 ns. | Higher VF increases conduction loss; slower trr may require snubber in >200 kHz designs. | Acceptable where margin exists in thermal budget and switching frequency ≤150 kHz. |
| ON Semiconductor MUR150G | DO-41, 50 V lower VRRM (450 V), VF = 1.25 V @ 1 A, trr = 35 ns, not AEC-Q101 qualified. | Limited to 350 VAC-derived systems; lacks automotive qualification. | Preferred for cost-sensitive industrial supplies without automotive compliance requirement. |
Compared with VS-1EFH05-M3/54 and MUR150G, SF17GHR0G delivers tighter VF consistency (1.70 V), guaranteed AEC-Q101 compliance, and optimized trr/CJ trade-off for 200–500 kHz automotive and industrial SMPS, making it the preferred choice where reliability and high-frequency efficiency are jointly critical.
Availability
SF17GHR0G is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial DC-DC converters, and LED driver power stages requiring stable component supply and AEC-Q101 assurance.
Supply support for SF17GHR0G 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.
SF17GHR0G belongs to TSC's SF1xG super fast rectifier family, engineered for high-efficiency, high-reliability power conversion in automotive, industrial, and lighting applications demanding fast recovery and robust surge handling.
FAQ
What is the peak repetitive reverse voltage rating of SF17GHR0G?
The SF17GHR0G has a peak repetitive reverse voltage (VRRM) rating of 500 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2104). It defines the maximum reverse-biased voltage the diode can block repeatedly without avalanche breakdown, making SF17GHR0G suitable for 400 V DC bus applications with safety margin.
Is SF17GHR0G qualified for automotive applications?
Yes, SF17GHR0G 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, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for automotive underhood and powertrain-adjacent systems.
What is the forward voltage drop of SF17GHR0G at rated current?
The forward voltage (VF) of SF17GHR0G is 1.70 V at IF = 1 A and TJ = 25 °C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents typical conduction loss behavior; actual VF rises with junction temperature and current, reaching ~1.95 V at 125 °C.
Does SF17GHR0G have a specified reverse recovery time?
Yes, SF17GHR0G has a maximum reverse recovery time (trr) of 35 ns, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is documented in the Electrical Specifications table and confirms its classification as a super fast rectifier, enabling efficient operation in switching power supplies operating up to 500 kHz.
What package type does SF17GHR0G use?
SF17GHR0G uses the DO-204AL (DO-41) axial-leaded package, as confirmed in the Mechanical Data and Ordering Information sections. The package features pure tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and cathode polarity indicated by a band on the body - all consistent across the SF1xG family.
SF17GHR0G 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:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 500 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 500 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF17GHR0G FAQ
1.How can I place an order for SF17GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SF17GHR0G 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 SF17GHR0G reliable?
The price and inventory of SF17GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF17GHR0G is usually 5 days.
3.What payment methods are accepted for SF17GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF17GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF17GHR0G?
SF17GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF17GHR0G 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 SF17GHR0G?
For technical support, including SF17GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF17GHR0G requirements.
6.How does Aetrix verify that SF17GHR0G is sourced from the original manufacturer or authorized distributors?
All SF17GHR0G 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 SF17GHR0G meets industry standards.
7.What is the process for return or replacement of SF17GHR0G?
All SF17GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SF17GHR0G, 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 SF17GHR0G part is unused and in its original packaging.
Return procedure for SF17GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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