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Taiwan Semiconductor Corporation SF68GH
- Part No.:
- SF68GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
SF68GH.pdf
- Description:
- DIODE GEN PURP 600V 6A DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:2,466
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Product details
Overview
SF68GH from Taiwan Semiconductor is a 600V, 6A AEC-Q101-qualified super fast rectifier diode in DO-201AD package, featuring 1.7V forward voltage at 6A and 35ns reverse recovery time, used for freewheeling and high-frequency switching in automotive DC-DC converters.
For engineers reviewing the SF68GH datasheet, SF68GH pinout, SF68GH application, or SF68GH equivalent, key selection criteria include peak reverse voltage rating (600V), surge current capability (150A), junction-to-lead thermal resistance (5°C/W), AEC-Q101 qualification status, and DO-201AD mechanical compatibility.
Technical Context
This super fast rectifier employs a single-die silicon PN junction optimized for low conduction loss and rapid carrier recombination. Its 35ns trr enables operation in high-frequency switching topologies up to several hundred kHz without excessive switching loss.
The device operates across -55°C to +150°C junction temperature range with 5°C/W junction-to-lead thermal resistance, supporting reliable performance in under-hood automotive environments where thermal management is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in high-voltage DC bus applications |
| IF | 6 A - Continuous average forward current; determines steady-state power handling in converter output stages |
| IFSM | 150 A - Non-repetitive surge current capacity; supports inrush and fault-current robustness in automotive systems |
| VF @ 6A | 1.7 V - Forward voltage drop at rated current; directly impacts conduction loss and thermal design in high-efficiency converters |
| trr | 35 ns - Reverse recovery time; enables use in >200 kHz switching circuits while minimizing switching losses and EMI |
| RθJL | 5 °C/W - Junction-to-lead thermal resistance; allows direct heatsinking via PCB copper or lead frame for thermal reliability |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments without derating |
Pinout & Package
Package: DO-201AD molded plastic case with pure tin-plated leads, UL 94V-0 rated compound, cathode indicated by band, weight ≈1.20g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must handle full 6A continuous and 150A surge currents |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; withstands 600V reverse bias; critical for voltage isolation in high-side switch configurations |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 standards |
| Super fast recovery (35ns) | Enables high-frequency operation in SMPS designs while reducing switching loss and associated EMI generation |
| Low VF (1.7V @ 6A) | Reduces conduction loss by ~15% vs. standard fast rectifiers, improving efficiency in 12V/48V automotive DC-DC stages |
| DO-201AD package | Industry-standard outline with 5°C/W RθJL, enabling direct PCB thermal coupling without additional heatsinks |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated automotive supply chains |
Applications
| Automotive DC-DC Converters | On-Board Charger (OBC) Output Stage |
|---|---|
Use Scenario: High-efficiency 12V/48V bidirectional DC-DC conversion in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost topology, conducting during low-side switch off-time. Use Value: 35ns trr minimizes reverse recovery charge loss at 250kHz switching, improving system efficiency by ≥0.8% over standard fast rectifiers. | Use Scenario: Secondary-side rectification in isolated LLC resonant converters for EV on-board chargers. IC Role / Device Role / Timing Role: Output rectifier handling 6A continuous current at up to 600V reverse bias during transformer reset. Use Value: 600V VRRM rating ensures margin against reflected transients in 400–800V battery systems, preventing catastrophic failure. |
| Industrial Motor Drive Braking | Telecom Power Supply Snubber |
Use Scenario: Regenerative braking energy dissipation in 3-phase inverter drives for HVAC and pumps. IC Role / Device Role / Timing Role: Clamping diode across DC-link capacitors, conducting surge current during dynamic braking events. Use Value: 150A IFSM rating absorbs 10ms motor back-EMF surges without degradation, extending system lifetime in cyclic load applications. | Use Scenario: Snubber network rectifier in high-density telecom rectifiers operating at 300kHz. IC Role / Device Role / Timing Role: Fast-recovery path for transient energy in RCD clamp circuits during MOSFET turn-off. Use Value: 1.7V VF and 35ns trr reduce snubber power loss by 22% vs. generic fast diodes, lowering thermal stress on adjacent components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06S | 600V, 6A, 50ns trr, TO-220AC package, VF = 1.75V @ 6A | Larger footprint, higher thermal resistance (15°C/W), requires heatsink | Preferred when higher surge margin or legacy TO-220 layout exists |
| ON Semi MUR660E | 600V, 6A, 35ns trr, DO-201AD package, VF = 1.85V @ 6A, no AEC-Q101 | Same footprint but lacks automotive qualification and has higher VF | Acceptable for industrial non-automotive use where cost is prioritized over qualification |
Compared with STTH6L06S and MUR660E, SF68GH delivers identical 600V/6A ratings and 35ns trr in DO-201AD, but uniquely combines AEC-Q101 qualification with lowest VF (1.7V) and best thermal resistance (5°C/W), making it optimal for space-constrained automotive power stages requiring zero derating at +125°C ambient.
Availability
SF68GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, on-board chargers, and industrial motor drive braking circuits requiring stable component supply with AEC-Q101 compliance and high surge robustness.
Supply support for SF68GH 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 devices, rectifiers, and protection components since 1979.
The SF6xG series was developed specifically for automotive and industrial high-reliability power conversion, emphasizing AEC-Q101 qualification, low VF, and fast recovery in standardized packages like DO-201AD.
FAQ
What is the peak repetitive reverse voltage rating for SF68GH?
The SF68GH has a peak repetitive reverse voltage (VRRM) rating of 600 V, verified per Taiwan Semiconductor's G2105 datasheet. This rating defines the maximum DC or sinusoidal AC reverse voltage the device can block continuously without breakdown. It provides sufficient margin for use in 400–500V nominal battery systems common in EV and HEV applications, ensuring long-term reliability under transient overvoltage conditions.
Is SF68GH qualified to AEC-Q101 standards?
Yes, SF68GH is explicitly AEC-Q101 qualified, as confirmed by the "H" suffix in its ordering code and documentation in the G2105 datasheet. This qualification includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per JESD22 standards. The SF68GH is therefore approved for use in automotive powertrain, chassis, and body electronics where component-level reliability is mandated.
What is the forward voltage drop of SF68GH at 6A and 25°C?
The forward voltage drop (VF) of SF68GH is 1.7 V at IF = 6 A and TJ = 25°C, per the Electrical Specifications table in the G2105 datasheet. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, but system-level thermal design must account for worst-case conduction loss using the 25°C value.
What package type does SF68GH use, and what are its mechanical features?
SF68GH uses the DO-201AD package: a molded plastic case with pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability rating, and JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band. The device weighs approximately 1.20 g. Its compact size and 5°C/W junction-to-lead thermal resistance enable direct PCB thermal coupling without auxiliary heatsinking in most automotive applications.
How does the reverse recovery time of SF68GH compare to other members of the SF6xG family?
SF68GH shares the same 35 ns reverse recovery time (trr) specification as SF65G through SF68G, per the Electrical Specifications table in the G2105 datasheet. This value is measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. Lower-voltage variants (SF61G–SF64G) have identical trr, confirming consistent die process optimization across the entire SF6xG family regardless of VRRM rating.
SF68GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-201AD, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 6 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 50pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF68GH FAQ
1.How can I place an order for SF68GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SF68GH 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 SF68GH reliable?
The price and inventory of SF68GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF68GH is usually 5 days.
3.What payment methods are accepted for SF68GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF68GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF68GH?
SF68GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF68GH 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 SF68GH?
For technical support, including SF68GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF68GH requirements.
6.How does Aetrix verify that SF68GH is sourced from the original manufacturer or authorized distributors?
All SF68GH 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 SF68GH meets industry standards.
7.What is the process for return or replacement of SF68GH?
All SF68GH units undergo pre-shipment inspection (PSI). If there is an issue with SF68GH, 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 SF68GH part is unused and in its original packaging.
Return procedure for SF68GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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