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Taiwan Semiconductor Corporation SFAF1606GH
- Part No.:
- SFAF1606GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-220-2 Full Pack
- Datasheet:
-
SFAF1606GH.pdf
- Description:
- DIODE GEN PURP 400V 16A ITO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
SFAF1606GH from Taiwan Semiconductor is a 16A, 400V repetitive peak reverse voltage (VRRM) super fast rectifier diode in ITO-220AC package, featuring 1.300V 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.
For engineers reviewing the SFAF1606GH datasheet, SFAF1606GH pinout, SFAF1606GH application, or SFAF1606GH equivalent, key selection criteria include VRRM=400V, IF=16A, trr=35ns, VF=1.300V, and AEC-Q101 qualification - all critical for switching-mode power supply design in automotive and industrial environments.
Technical Context
This super fast rectifier uses a glass-passivated silicon junction to achieve low forward voltage and high surge current capability (IFSM=200A). Its 35ns reverse recovery time and 100pF junction capacitance at 1MHz/4V support operation in high-frequency switching topologies up to several hundred kHz.
The device operates across -55°C to +150°C junction temperature range with 1.3°C/W junction-to-case thermal resistance, enabling direct heatsink mounting in compact power stages. Polarity is marked on the case, and matte tin-plated leads comply with J-STD-002 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling circuits |
| IF | 16 A - Continuous average forward current; determines heatsink sizing and conduction loss budget |
| VF @ 16A, 25°C | 1.300 V - Forward voltage drop directly impacts conduction loss (P = IF × VF) |
| trr | 35 ns - Reverse recovery time limits maximum switching frequency and reduces switching loss |
| IFSM | 200 A - Peak non-repetitive surge current handling; supports inrush and fault transient robustness |
| RθJC | 1.3 °C/W - Thermal resistance from junction to case; enables accurate thermal modeling with heatsink interface |
| TJ max | +150 °C - Maximum junction temperature; sets upper boundary for thermal design margin |
Pinout & Package
Package: ITO-220AC - Insulated TO-220 variant with isolated tab, UL 94V-0 molding compound, and matte tin-plated leads. Mounting torque ≤ 0.56 N·m. Weight ≈ 1.70 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to input/high-side node in freewheeling or output rectification paths |
| Cathode (Lead 2) | Forward current exit point | Connected to ground or return path; polarity marked on case body |
| Tab (Isolated) | Thermal interface only | Electrically isolated metal surface for heatsink attachment; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test requirements including temperature cycling and HTRB |
| Glass passivated junction | Enhances moisture resistance and long-term reliability in humid or contaminated environments |
| Low VF (1.300 V @ 16A) | Reduces conduction losses by ~15% vs. standard fast rectifiers at same current level |
| High IFSM (200 A) | Withstands 8.3ms half-sine surge without degradation - critical for input filter capacitor charging events |
| UL Recognized (E-326243) | Meets safety standards for end-equipment certification in industrial and automotive power supplies |
Applications
| Automotive DC-DC Converters | Industrial SMPS Output Rectification |
|---|---|
Use Scenario: 12V–48V bidirectional DC-DC converter in 48V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 16A load with 400V reverse blocking during switch-node transitions. Use Value: AEC-Q101 qualification and 150°C TJ max ensure stable operation under engine bay thermal transients. | Use Scenario: 24V/15A regulated output stage of DIN-rail mounted industrial power supply. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified forward converter operating at 200kHz. Use Value: 35ns trr minimizes reverse recovery loss, improving efficiency by ≥0.8% at full load vs. standard fast diodes. |
| Telecom Power Brick Rectification | Renewable Energy Inverter Auxiliary Supply |
Use Scenario: Secondary-side rectification in 48V telecom power brick delivering up to 16A. IC Role / Device Role / Timing Role: High-current output rectifier with low VF and tight thermal coupling to heatsink via ITO-220AC tab. Use Value: 1.3°C/W RθJC enables compact thermal design without forced air cooling. | Use Scenario: Auxiliary 24V supply rectifier in solar string inverter control board. IC Role / Device Role / Timing Role: Input rectifier for isolated flyback supplying gate drivers and MCU rails. Use Value: UL recognition and halogen-free construction meet IEC 62109 and RoHS compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1604D | VRRM=400V, VF=1.25V @ 16A, trr=30ns, TO-220AC package, not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial SMPS only | Select when AEC-Q101 is not required and slightly faster trr is prioritized |
| VS-16EWH04FN-M3 | VRRM=400V, VF=1.28V @ 16A, trr=32ns, TO-247AC package, AEC-Q101 qualified | Larger TO-247AC footprint; higher RθJC (0.9°C/W) but requires different PCB layout | Choose when higher thermal performance justifies larger package and layout change |
Compared with STTH1604D and VS-16EWH04FN-M3, the SFAF1606GH uniquely balances AEC-Q101 compliance, ITO-220AC isolation, and 1.300V VF in a cost-optimized automotive-qualified footprint - making it optimal for space-constrained, thermally demanding automotive DC-DC designs where tab isolation is mandatory.
Availability
SFAF1606GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching mode power supplies, and renewable energy auxiliary power modules requiring stable component supply and AEC-Q101 assurance.
Supply support for SFAF1606GH 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 global automotive, industrial, and consumer markets since 1979.
The SFAF1606GH belongs to TSC's AEC-Q101-qualified super fast rectifier product line, engineered specifically for high-efficiency, high-reliability secondary-side rectification in automotive and industrial switching power supplies.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for SFAF1606GH?
The SFAF1606GH has a VRRM rating of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version H2105). This value is fixed per the "06" digit in the part number and defines the highest reverse voltage the device can block repeatedly without breakdown under specified conditions.
Is SFAF1606GH AEC-Q101 qualified, and what does the "H" suffix indicate?
Yes, the "H" suffix in SFAF1606GH explicitly denotes AEC-Q101 qualification per the Ordering Information section of the datasheet. This means the SFAF1606GH has undergone stress testing including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing to meet automotive reliability requirements.
What is the forward voltage (VF) of SFAF1606GH at rated current and temperature?
The SFAF1606GH exhibits a maximum forward voltage of 1.300 V at IF = 16 A and TJ = 25°C, as specified in the Electrical Specifications table. This value increases with junction temperature and is measured using a 0.3 ms pulse test to avoid self-heating effects.
Does SFAF1606GH have an electrically isolated tab, and why does that matter?
Yes, the SFAF1606GH uses the ITO-220AC package, which features an electrically isolated metal tab. This allows direct mechanical mounting to a heatsink without requiring insulating hardware - simplifying thermal design while maintaining circuit isolation integrity in floating or high-side configurations.
What is the reverse recovery time (trr) specification for SFAF1606GH, and how is it tested?
The SFAF1606GH has a maximum reverse recovery time of 35 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as defined in the Electrical Specifications table. This parameter is critical for minimizing switching loss in high-frequency converters above 100 kHz.
SFAF1606GH 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):
- 400 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 16 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 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
SFAF1606GH FAQ
1.How can I place an order for SFAF1606GH through Aetrix?
Please submit a Request for Quotation (RFQ) for SFAF1606GH 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 SFAF1606GH reliable?
The price and inventory of SFAF1606GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1606GH is usually 5 days.
3.What payment methods are accepted for SFAF1606GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1606GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFAF1606GH?
SFAF1606GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFAF1606GH 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 SFAF1606GH?
For technical support, including SFAF1606GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1606GH requirements.
6.How does Aetrix verify that SFAF1606GH is sourced from the original manufacturer or authorized distributors?
All SFAF1606GH 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 SFAF1606GH meets industry standards.
7.What is the process for return or replacement of SFAF1606GH?
All SFAF1606GH units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1606GH, 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 SFAF1606GH part is unused and in its original packaging.
Return procedure for SFAF1606GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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