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Taiwan Semiconductor Corporation SFAF1608GH
- Part No.:
- SFAF1608GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF1608GH.pdf
- Description:
- DIODE GEN PURP 600V 16A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
SFAF1608GH from Taiwan Semiconductor is a 16A, 600V super fast rectifier diode in ITO-220AC package, featuring 1.700V forward voltage at 16A/25°C, 35ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability. It serves as a primary output rectifier in high-frequency DC-DC converters requiring low conduction loss and fast switching.
For engineers reviewing the SFAF1608GH datasheet, SFAF1608GH pinout, SFAF1608GH application, or SFAF1608GH equivalent, key selection criteria include its 600V VRRM, 200A IFSM, 1.3°C/W RθJC, AEC-Q101 compliance, and ITO-220AC thermal-mechanical interface for high-power automotive and industrial power supplies.
Technical Context
This super fast rectifier uses glass-passivated silicon junction technology to achieve tight VF control (max 1.700V @ 16A) and low junction capacitance (100pF @ 1MHz/4V). Its 35ns trr enables operation in 100–500kHz switching topologies without excessive switching loss.
The ITO-220AC package provides direct case-to-heatsink thermal path with 0.56 N·m mounting torque limit and JESD201 Class 2 whisker resistance. Polarity is marked on device body; leads are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum repetitive reverse blocking voltage; defines usable input/output voltage range in boost, flyback, and LLC converters |
| IF | 16 A - Continuous average forward current; sets minimum heatsink size for 100% duty-cycle operation |
| IFSM | 200 A - Non-repetitive surge rating; supports cold-start and overload protection in SMPS |
| VF | 1.700 V @ 16A/25°C - Forward voltage drop directly determines conduction loss and thermal load at full load |
| trr | 35 ns - Reverse recovery time; enables efficient operation up to ~500 kHz with minimal switching loss |
| RθJC | 1.3 °C/W - Junction-to-case thermal resistance; used to calculate die temperature rise above heatsink temperature |
| Junction Temp | −55°C to +150°C - Operating range compatible with under-hood automotive environments |
Pinout & Package
ITO-220AC package: single-diode configuration with anode and cathode terminals on separate leads; case (tab) is electrically connected to cathode. Mounting hole centered on tab; polarity marked on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Input current entry point | Connected to switching node or transformer secondary; must withstand full reverse voltage during off-state |
| Cathode (Lead 2) | Output current exit point | Electrically tied to case; requires insulated mounting or direct heatsink connection with cathode bias |
| Case (Tab) | Cathode terminal | Primary thermal path; must be mounted to heatsink with ≤0.56 N·m torque and electrically referenced to cathode net |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements including HTOL, TC, HTRB |
| Glass passivated junction | Eliminates moisture-induced leakage and surface degradation; ensures long-term stability in humid environments |
| Low VF / high efficiency | 1.700V max at rated current reduces conduction loss by ≥15% vs. standard fast rectifiers in 48V-output converters |
| High surge capability | 200A IFSM supports 10× rated current surges for >1 cycle-critical for PFC and motor drive freewheeling |
| UL Recognized (E-326243) | Meets UL 94V-0 flammability and electrical safety standards for end-equipment certification |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: 12V-to-48V bidirectional converter in 48V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Primary output rectifier in synchronous or asymmetrical half-bridge topology. Use Value: AEC-Q101 qualification and 150°C TJMAX ensure reliability under hood; 600V rating accommodates transient spikes up to 450V bus. | Use Scenario: 3kW telecom rectifier module with active clamp forward architecture. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode handling 16A continuous current at 200kHz switching frequency. Use Value: 35ns trr minimizes reverse recovery loss; 1.3°C/W RθJC enables compact heatsink design at 85°C ambient. |
| Renewable Energy Inverters | Motor Drive Freewheeling |
Use Scenario: String-level DC optimizer for solar PV systems with 600V string voltage. IC Role / Device Role / Timing Role: Input-stage clamping and reverse-polarity protection diode. Use Value: 600V VRRM matches system string voltage; glass passivation prevents field failure in outdoor UV/humidity exposure. | Use Scenario: 7.5kW servo drive with IGBT-based 3-phase inverter stage. IC Role / Device Role / Timing Role: Freewheeling path for inductive motor current during PWM dead-time. Use Value: 200A IFSM handles peak regeneration currents; low VF reduces heat generation during continuous conduction mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1606D | 600V VRRM, 1.75V VF @ 16A, 50ns trr, TO-220AC package | Higher VF and slower trr increase conduction and switching loss in >300kHz designs | Acceptable where thermal margin exists and switching frequency ≤200kHz |
| IXYS MUR1660CT | 600V VRRM, dual common-cathode configuration, 1.85V VF, 60ns trr, TO-220AB | Dual-die layout adds routing complexity; higher VF and trr reduce efficiency in high-density converters | Only suitable when dual-diode topology is required; not a drop-in replacement |
Compared with STTH1606D and IXYS MUR1660CT, the SFAF1608GH delivers superior high-frequency efficiency via lower VF and faster trr, while its AEC-Q101 rating and ITO-220AC mechanical robustness make it uniquely suited for automotive and high-reliability industrial power conversion.
Availability
SFAF1608GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and renewable energy inverters requiring stable component supply, AEC-Q101 compliance, and high thermal performance.
Supply support for SFAF1608GH 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 power discrete manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and computing markets since 1979.
The SFAF1608GH belongs to TSC's AEC-Q101-qualified super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in automotive electrification and industrial automation systems.
FAQ
What is the maximum junction temperature rating for the SFAF1608GH?
The SFAF1608GH has a maximum junction temperature (TJMAX) of +150°C, validated across its full operating range from −55°C to +150°C. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Thermal design must maintain junction temperature below this limit using the specified 1.3°C/W RθJC and appropriate heatsinking. The SFAF1608GH datasheet confirms this value in the Absolute Maximum Ratings table.
Is the SFAF1608GH pin-compatible with other devices in the SFAF16xxG series?
Yes, all SFAF16xxG variants-including SFAF1608GH-share identical ITO-220AC packaging, pinout, and mechanical footprint. The only differences are VRRM (50V to 600V), VF (0.975V to 1.700V), and junction capacitance (130pF to 100pF). This uniformity allows board-level voltage rating upgrades without layout changes. The SFAF1608GH maintains the same anode/cathode lead assignment and case-as-cathode configuration as the full family.
Does the SFAF1608GH require derating at elevated ambient temperatures?
Yes, the SFAF1608GH requires linear forward current derating above 25°C ambient, as shown in Figure 1 of its datasheet. At 100°C case temperature, rated IF drops to approximately 9.5A. Derating is governed by thermal resistance (RθJC = 1.3°C/W) and heatsink performance. The SFAF1608GH must be mounted with ≤0.56 N·m torque to ensure optimal thermal contact; insufficient mounting pressure increases effective RθJC.
What does the "H" suffix in SFAF1608GH signify?
The "H" suffix in SFAF1608GH indicates full AEC-Q101 qualification per Rev H2105 specification, covering stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and high-temperature reverse bias (HTRB). This distinguishes it from non-H variants (e.g., SFAF1608G), which lack automotive qualification. The SFAF1608GH is certified under UL File #E-326243 and complies with RoHS and halogen-free standards per IEC 61249-2-21.
How is the polarity marked on the SFAF1608GH package?
The SFAF1608GH uses standard ITO-220AC marking: the cathode is indicated by a wide band or "K" symbol adjacent to Lead 2 (cathode lead), and the case (metal tab) is electrically connected to the cathode. The marking diagram in the datasheet shows "SFAF1608GH" followed by date code and factory code. Polarity must be verified before PCB assembly, as reverse mounting causes immediate failure under reverse bias. The SFAF1608GH body marking is laser-etched for permanent legibility.
SFAF1608GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-220-2 Full Pack
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Capacitance @ Vr, F:
- 100pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- ITO-220AC
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFAF1608GH FAQ
1.How can I place an order for SFAF1608GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF1608GH 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 SFAF1608GH reliable?
The price and inventory of SFAF1608GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1608GH is usually 5 days.
3.What payment methods are accepted for SFAF1608GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1608GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF1608GH?
SFAF1608GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF1608GH 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 SFAF1608GH?
For technical support, including SFAF1608GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1608GH requirements.
6.How does Aetrix verify that SFAF1608GH is sourced from the original manufacturer or authorized distributors?
All SFAF1608GH 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 SFAF1608GH meets industry standards.
7.What is the process for return or replacement of SFAF1608GH?
All SFAF1608GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1608GH, 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 SFAF1608GH part is unused and in its original packaging.
Return procedure for SFAF1608GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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