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Taiwan Semiconductor Corporation SFT17GHR0G
- Part No.:
- SFT17GHR0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
SFT17GHR0G.pdf
- Description:
- DIODE GEN PURP 500V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:7,291
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Product details
Overview
SFT17GHR0G from Taiwan Semiconductor is a 1 A, 500 V super fast recovery rectifier diode in TS-1 package, featuring 1.70 V typical forward voltage at 1 A and 25°C, 35 ns reverse recovery time, 10 pF junction capacitance at 1 MHz/4 V, and AEC-Q101 qualification. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters for automotive power supplies.
For engineers reviewing the SFT17GHR0G datasheet, SFT17GHR0G pinout, SFT17GHR0G application, or SFT17GHR0G equivalent, key selection criteria include peak repetitive reverse voltage (500 V), surge current rating (30 A), thermal resistance (100 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for automotive-grade designs.
Technical Context
The SFT17GHR0G uses a single-die silicon PN junction optimized for fast switching with low stored charge, enabling efficient operation in 100–500 kHz switching mode power supplies. Its 35 ns trr and 10 pF CJ support reduced switching losses and EMI suppression in compact topologies.
Designed for automotive under-hood environments, the device meets AEC-Q101 stress test requirements including temperature cycling, HTRB, and biased HAST. The TS-1 package provides mechanical robustness and thermal performance suitable for reflow-soldered PCBs with minimal heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 500 V - Withstands up to 500 V repetitive reverse voltage without breakdown, enabling use in 400 V DC bus systems. |
| IF | 1 A continuous - Rated average forward current supports sustained conduction in low-power auxiliary rails. |
| IFSM | 30 A (8.3 ms) - Handles short-duration inrush or fault currents without failure in SMPS startup or overload conditions. |
| VF | 1.70 V typ @ 1 A, 25°C - Low forward drop reduces conduction loss and improves efficiency in high-duty-cycle rectification. |
| trr | 35 ns max - Fast recovery minimizes reverse recovery charge (Qrr), reducing switching loss and snubber stress. |
| CJ | 10 pF @ 1 MHz, 4 V - Low junction capacitance limits displacement current and improves high-frequency noise immunity. |
| RθJA | 100 °C/W - Enables thermal design on standard FR-4 PCBs without forced air or heatsinks for ≤0.5 W dissipation. |
Pinout & Package
TS-1 package: surface-mount, single-anode/single-cathode configuration with cathode band marking; lead-free, pure tin-plated terminals compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node or ground return) in freewheeling path. |
| Cathode | Forward current exit point | Connected to higher-potential rail (e.g., output capacitor positive) - marked by visible band. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power modules. |
| Super fast recovery (trr ≤ 35 ns) | Enables >200 kHz switching frequencies with minimal Qrr-induced losses in synchronous rectifier replacement. |
| Low VF (1.70 V typ) | Reduces conduction loss by ~15% vs. standard fast rectifiers at 1 A, improving thermal margin in sealed enclosures. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and automotive ELV directives for end-of-life recyclability and flame safety. |
| TS-1 package reliability | UL 94V-0 molding compound and JESD201 Class 2 whisker resistance ensure long-term solder joint integrity. |
Applications
| Automotive DC-DC Converters | Industrial SMPS Auxiliary Rails |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V buck converter powering microcontrollers and sensors in engine control modules. IC Role / Device Role / Timing Role: Output rectifier handling 1 A continuous load with transient surges during cold-crank events. Use Value: AEC-Q101 qualification and –55°C to +150°C operation ensure functional reliability across automotive temperature extremes. | Use Scenario: Isolated flyback supply providing bias power to gate drivers in motor drive inverters. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode operating at 250 kHz with minimal reverse recovery loss. Use Value: 35 ns trr and 10 pF CJ reduce EMI generation and improve efficiency over standard FR107-class diodes. |
| LED Driver Power Supplies | Telecom Power Rectification |
Use Scenario: Constant-current LED driver for commercial lighting with 350 mA–1 A output. IC Role / Device Role / Timing Role: Primary-side rectifier in non-isolated buck-boost topology with 500 V blocking requirement. Use Value: 500 V VRRM supports universal AC input (90–305 VAC) designs without series stacking. | Use Scenario: 48 V intermediate bus rectification in telecom shelf power systems. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward converter operating at 300 kHz. Use Value: 30 A IFSM withstands hot-swap transients and load-dump surges common in distributed power architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06S | Same 1 A / 600 V rating; 1.75 V VF max (vs. 1.70 V typ); 50 ns trr max (vs. 35 ns max); TO-277 package. | Higher VF and slower trr increase conduction and switching losses in high-frequency designs. | Prefer SFT17GHR0G where <35 ns trr and AEC-Q101 are required; STTH1R06S suits cost-sensitive industrial use. |
| ON Semi MUR105 | 1 A / 50 V rating only; 1.25 V VF max; 75 ns trr max; DO-41 package; not AEC-Q101 qualified. | Insufficient VRRM for 400 V bus applications; unsuitable for automotive or high-voltage SMPS. | Select SFT17GHR0G for 500 V blocking and automotive qualification; MUR105 limited to low-voltage consumer adapters. |
Compared with STTH1R06S and MUR105, the SFT17GHR0G delivers superior high-frequency efficiency via lower trr and VF, plus guaranteed automotive qualification-making it the preferred choice for space-constrained, thermally demanding automotive and industrial DC-DC converters requiring 500 V blocking.
Availability
SFT17GHR0G is available at Aetrix Electronics and suitable for automotive power modules, industrial DC-DC converters, and telecom intermediate bus supplies requiring stable component supply, AEC-Q101 compliance, and consistent TS-1 packaging.
Supply support for SFT17GHR0G 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 for automotive and industrial markets.
The SFT17GHR0G belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive engine control, ADAS, and body electronics.
FAQ
What is the maximum junction temperature rating for SFT17GHR0G?
The SFT17GHR0G has a maximum junction temperature (TJ MAX) of +150°C, verified per AEC-Q101 thermal stress testing. This allows reliable operation in under-hood automotive environments where ambient temperatures reach +125°C, provided PCB thermal design maintains junction-to-ambient rise within the 100 °C/W RθJA limit. Derating curves in the SFT17GHR0G datasheet define safe IF vs. TA operation.
Is SFT17GHR0G pin-compatible with other TS-1 rectifiers like SFT16G or SFT18G?
Yes, SFT17GHR0G shares identical TS-1 package dimensions, terminal layout, and polarity marking (cathode band) with all SFT1xG variants. Mechanical compatibility enables direct PCB footprint reuse across the 50–600 V family. However, electrical parameters-including VRRM (500 V), VF (1.70 V), and CJ (10 pF)-are specific to SFT17GHR0G and must be validated for each target application.
Does SFT17GHR0G meet automotive qualification standards?
Yes, the "H" suffix in SFT17GHR0G explicitly denotes AEC-Q101 qualification per the ordering code table in the official datasheet. This includes full stress testing for temperature cycling, high-temperature reverse bias (HTRB), and biased highly accelerated stress test (BHAST), confirming suitability for automotive powertrain and chassis applications.
What is the reverse leakage current specification for SFT17GHR0G at elevated temperature?
At TJ = 125°C and rated VR (500 V), the SFT17GHR0G exhibits a maximum reverse leakage current (IR) of 100 µA, as specified in the Electrical Specifications table. This value is critical for low-power standby modes in automotive ECUs, where excessive IR could drain battery reserves during extended parking periods.
How does the 35 ns reverse recovery time of SFT17GHR0G impact EMI in high-frequency SMPS designs?
The 35 ns trr of SFT17GHR0G directly reduces reverse recovery charge (Qrr), minimizing high-frequency ringing and voltage overshoot during turn-off transitions. In 250–500 kHz DC-DC converters, this lowers conducted EMI amplitude by up to 6 dB compared to standard fast rectifiers, easing compliance with CISPR 25 Class 5 automotive emissions limits without additional snubbers.
SFT17GHR0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, 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:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFT17GHR0G FAQ
1.How can I place an order for SFT17GHR0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFT17GHR0G 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 SFT17GHR0G reliable?
The price and inventory of SFT17GHR0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT17GHR0G is usually 5 days.
3.What payment methods are accepted for SFT17GHR0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT17GHR0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFT17GHR0G?
SFT17GHR0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFT17GHR0G 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 SFT17GHR0G?
For technical support, including SFT17GHR0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT17GHR0G requirements.
6.How does Aetrix verify that SFT17GHR0G is sourced from the original manufacturer or authorized distributors?
All SFT17GHR0G 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 SFT17GHR0G meets industry standards.
7.What is the process for return or replacement of SFT17GHR0G?
All SFT17GHR0G units undergo pre-shipment inspection (PSI). If there is an issue with SFT17GHR0G, 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 SFT17GHR0G part is unused and in its original packaging.
Return procedure for SFT17GHR0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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