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Taiwan Semiconductor Corporation SF1601PT
- Part No.:
- SF1601PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SF1601PT.pdf
- Description:
- DIODE ARRAY GP 50V 16A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:9,226
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Product details
Overview
SF1601PT from Taiwan Semiconductor is a 16A, 50V super fast recovery dual rectifier in TO-247AD (TO-3P) package with center-tapped configuration, 35ns reverse recovery time, 0.95V forward voltage at 8A/25°C, and AEC-Q101 qualification option - used in DC-DC converters and snubber circuits for high-efficiency power conversion.
For engineers reviewing the SF1601PT datasheet, SF1601PT pinout, SF1601PT application, or SF1601PT equivalent, key selection criteria include VRRM = 50V, IF = 16A, trr = 35ns, RθJC = 2°C/W, and dual-die center-tap topology for isolated half-wave or full-wave rectification in compact industrial and automotive power supplies.
Technical Context
The SF1601PT integrates two identical silicon rectifier dies in a single TO-247AD package with shared cathode connection and anode terminals labeled A1 and A2 - enabling center-tapped transformer secondary interface. Its glass-passivated junction ensures stable operation up to 150°C junction temperature.
Designed for switching-mode power supplies, it delivers low conduction loss (VF = 0.95V @ 8A, 25°C) and fast switching (trr = 35ns), minimizing switching losses during hard-commutation in flyback and forward converters operating above 50kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage; defines minimum isolation margin for 36V input DC-DC stages. |
| IF | 16 A - Continuous forward current rating; supports 20W–40W output designs with thermal derating above 75°C case temperature. |
| trr | 35 ns - Reverse recovery time; enables efficient operation in 100–500 kHz SMPS without excessive diode switching loss or EMI. |
| VF | 0.95 V @ 8A, 25°C - Low forward drop per die; reduces conduction loss by ~15% vs. standard fast rectifiers in same package. |
| RθJC | 2 °C/W - Junction-to-case thermal resistance; allows 13W dissipation at ΔT = 26°C with standard heatsink mounting. |
| IFSM | 150 A - Non-repetitive surge rating; withstands inrush currents in offline input rectification or motor drive freewheeling. |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal molded plastic case with isolated mounting hole, matte tin-plated leads, UL 94V-0 rated compound, and polarity marked on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | First rectifier anode; connects to one end of center-tapped transformer secondary or split DC bus. |
| A2 | Anode 2 | Second rectifier anode; connects to opposite end of center-tapped winding or complementary rail. |
| K | Common Cathode | Shared cathode output node; delivers full-wave rectified output when both anodes are driven differentially. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die center-tap configuration | Enables full-wave rectification from single transformer winding without external diode pairing or PCB routing complexity. |
| 35 ns reverse recovery time | Reduces turn-off switching loss and associated EMI in high-frequency DC-DC converters operating >100 kHz. |
| 0.95 V forward voltage @ 8A | Lowers conduction loss by ~1.2 W per die vs. 1.15 V alternatives, improving efficiency in 12–24 V output stages. |
| Glass-passivated junction | Ensures long-term reliability under humidity, thermal cycling, and bias stress in industrial and automotive environments. |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in AC-DC adapters and industrial power supplies. |
Applications
| DC-DC Converter | Snubber Circuit |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12V/24V output flyback or forward converters. IC Role / Device Role / Timing Role: Dual rectifier provides full-wave output from center-tapped transformer; replaces discrete diode pair with matched trr and VF. Use Value: Reduces component count and layout area while maintaining <35 ns switching consistency between legs for balanced current sharing. | Use Scenario: Clamp diode in RCD snubber networks across MOSFET drains in high-voltage switching circuits. IC Role / Device Role / Timing Role: Fast recovery prevents voltage overshoot during MOSFET turn-on by rapidly absorbing stored inductive energy. Use Value: 35 ns trr limits snubber ringback duration, reducing peak clamp voltage and improving MOSFET SOA margin at 50–200 kHz. |
| Freewheeling Diode | Lighting Driver |
Use Scenario: Inductive load freewheeling path in 12–48 V automotive solenoid or relay drivers. IC Role / Device Role / Timing Role: Provides low-loss return path for coil current after switch turn-off; handles 150 A surge peaks. Use Value: 2°C/W RθJC and 150°C TJMAX allow sustained operation at 16 A without forced cooling in engine bay environments. | Use Scenario: Output rectification in constant-current LED drivers for street lighting and commercial fixtures. IC Role / Device Role / Timing Role: Converts high-frequency AC from resonant LLC stage into regulated DC for LED strings. Use Value: Low VF minimizes thermal rise in enclosed housings; RoHS/halogen-free construction meets global lighting 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 |
|---|---|---|---|
| STTH1605D | VRRM = 50 V, trr = 35 ns, IF = 16 A, TO-247 package, but single-die with isolated anode/cathode pins. | Requires external wiring for center-tap emulation; lacks integrated dual-die symmetry. | Select when board layout permits discrete anode routing and thermal management allows separate die mounting. |
| IXYS MUR1650CT | VRRM = 50 V, trr = 35 ns, IF = 16 A, TO-247 package, dual-die center-tap - identical pinout and thermal spec. | Same mechanical and electrical interface; differs only in qualification (AEC-Q101 optional vs. standard). | Preferred where AEC-Q101 compliance is mandatory and Taiwan Semiconductor's green compound requirement is not specified. |
Compared with STTH1605D, SF1601PT eliminates external interconnects for center-tapped operation; versus IXYS MUR1650CT, it offers halogen-free molding and UL recognition under E-326243 - critical for lighting and industrial safety certifications.
Availability
SF1601PT is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, and freewheeling applications requiring stable component supply, consistent trr matching, and AEC-Q101-qualified variants for automotive subsystems.
Supply support for SF1601PT 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.
The SF1601PT belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency switching power supplies where low VF, tight trr matching, and robust thermal performance are essential for efficiency and reliability.
FAQ
What is the maximum junction temperature rating for the SF1601PT?
The SF1601PT has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official datasheet. This rating applies under continuous operation with proper heatsinking and accounts for thermal resistance of 2°C/W from junction to case. Derating curves confirm usable current down to 0A at 150°C case temperature, making SF1601PT suitable for under-hood automotive applications where ambient temperatures exceed 105°C.
Does the SF1601PT have AEC-Q101 qualification?
The SF1601PT itself is not AEC-Q101 qualified; however, the SF1601PTH variant - identical in all electrical and mechanical specifications except marking and qualification status - is AEC-Q101 certified. The "H" suffix denotes qualification, and both parts share the same TO-247AD package, 50V VRRM, 35ns trr, and 0.95V VF. For automotive-grade designs, SF1601PTH must be specified explicitly.
What is the reverse recovery time (trr) test condition for the SF1601PT?
The SF1601PT reverse recovery time of 35 ns is measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, with pulse testing per JEDEC guidelines. This reflects real-world behavior in hard-switched converters and validates its suitability for 100–500 kHz operation without excessive switching loss. The value is typical and guaranteed maximum per datasheet Electrical Specifications table.
How does the center-tap configuration of the SF1601PT simplify full-wave rectifier design?
The SF1601PT integrates two matched rectifier dies with a common cathode (K) and separate anodes (A1, A2), forming a monolithic center-tapped structure. This eliminates the need for two discrete diodes, external balancing resistors, or precise layout symmetry - reducing PCB area, parasitic inductance, and thermal mismatch. In practice, SF1601PT enables direct connection to transformer center-tapped secondaries with only three external connections, improving reliability over discrete implementations.
What is the forward voltage specification for the SF1601PT at elevated temperature?
The SF1601PT forward voltage increases with junction temperature: VF = 0.95 V typ. at 25°C (IF = 8 A), rising to approximately 0.82 V at 125°C due to negative temperature coefficient of silicon PN junctions. This behavior is confirmed in the Typical Forward Characteristics curve (Fig.4), where VF decreases ~2 mV/°C. Designers should use the 125°C curve for worst-case conduction loss estimation in thermally constrained enclosures.
SF1601PT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-247-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io) (per Diode):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SF1601PT FAQ
1.How can I place an order for SF1601PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SF1601PT 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 SF1601PT reliable?
The price and inventory of SF1601PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1601PT is usually 5 days.
3.What payment methods are accepted for SF1601PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1601PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF1601PT?
SF1601PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF1601PT 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 SF1601PT?
For technical support, including SF1601PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1601PT requirements.
6.How does Aetrix verify that SF1601PT is sourced from the original manufacturer or authorized distributors?
All SF1601PT 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 SF1601PT meets industry standards.
7.What is the process for return or replacement of SF1601PT?
All SF1601PT units undergo pre-shipment inspection (PSI). If there is an issue with SF1601PT, 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 SF1601PT part is unused and in its original packaging.
Return procedure for SF1601PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SF1601PT Tags
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