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Taiwan Semiconductor Corporation SF1603PT
- Part No.:
- SF1603PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SF1603PT.pdf
- Description:
- DIODE ARRAY GP 150V 16A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:4,551
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Product details
Overview
SF1603PT from Taiwan Semiconductor is a 16A, 150V repetitive peak reverse voltage super fast rectifier in TO-247AD package with dual-die center-tapped configuration, 35ns reverse recovery time, and 0.95V forward voltage at 8A/25°C - used in DC-DC converters and snubber circuits.
For engineers reviewing the SF1603PT datasheet, SF1603PT pinout, SF1603PT application, or SF1603PT equivalent, key selection criteria include VRRM=150V, trr=35ns, VF=0.95V @8A, RθJC=2°C/W, and AEC-Q101 qualification availability (SF1603PTH variant).
Technical Context
The SF1603PT integrates two identical silicon die in a single TO-247AD package with center-tap anode configuration, enabling dual-series or common-cathode rectification topologies. Its glass-passivated junction ensures robustness against moisture and contamination.
Designed for high-frequency switching applications, it delivers low conduction loss (VF=0.95V) and ultrafast recovery (trr=35ns), minimizing switching losses in SMPS and inverters operating up to several hundred kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum non-repetitive reverse blocking voltage per diode |
| IF | 16 A - continuous average forward current at case temperature ≤75°C |
| trr | 35 ns - reverse recovery time under IF=0.5A, IR=1.0A, Irr=0.25A test conditions |
| VF | 0.95 V @ 8A, 25°C - forward voltage drop per diode, directly impacting conduction loss |
| RθJC | 2 °C/W - junction-to-case thermal resistance, enabling efficient heatsink coupling |
| IR | 10 µA @ 25°C - reverse leakage per diode at rated VR, critical for low-power standby modes |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal molded plastic case with matte tin-plated leads, UL 94V-0 rated compound, and polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | First diode anode | Input terminal for first rectifying path; connected internally to center-tap node |
| Cathode (K) | Common cathode | Shared output node for both diodes; carries full load current in center-tap configuration |
| Anode 2 (A2) | Second diode anode | Input terminal for second rectifying path; symmetrical to A1 in dual-die layout |
Key Features
| Feature | Design Value |
|---|---|
| Dual-die center-tap construction | Enables compact full-wave rectification without external center-tapped transformer |
| Superfast recovery (trr = 35 ns) | Reduces switching loss and EMI in high-frequency DC-DC converters ≥100 kHz |
| Glass passivated junction | Ensures long-term reliability under humid or contaminated industrial environments |
| Low thermal resistance (RθJC = 2°C/W) | Supports 16A operation with moderate heatsinking - e.g., 25°C ambient + 40°C rise |
Applications
| DC-DC Converter | Snubber Circuit |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 48V-to-12V telecom power supplies. IC Role / Device Role / Timing Role: High-efficiency unidirectional current steering diode pair replacing MOSFETs in cost-sensitive designs. Use Value: 0.95V VF reduces conduction loss by ~15% vs. standard fast rectifiers at 8A, improving overall efficiency. | Use Scenario: RCD clamp network in flyback converter primary side. IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing leakage inductance energy during MOSFET turn-off. Use Value: 35ns trr prevents reverse conduction overlap, limiting voltage overshoot and protecting switching FETs. |
| Lighting Application | Freewheeling Diode |
Use Scenario: Input rectification stage in LED driver modules for street lighting. IC Role / Device Role / Timing Role: Dual-diode bridge input rectifier with shared cathode simplifying PCB layout. Use Value: TO-247AD package supports 16A RMS current and withstands surge currents up to 150A (8.3ms), meeting IEC 61000-4-5 requirements. | Use Scenario: Inductive load commutation in 24V industrial solenoid drivers. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF energy dissipation across relay or valve coils. Use Value: Low RθJC (2°C/W) maintains junction temperature <150°C even during repeated 100ms on/off cycles at 12A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1602CT | VRRM=200V, trr=35ns, VF=0.95V @8A, TO-247 package, single-die dual common-cathode | Higher VRRM margin; no center-tap - requires external winding tap or split secondary | Select when higher reverse voltage headroom is needed and transformer center-tap is unavailable |
| IXYS MUR1620CT | VRRM=200V, trr=35ns, VF=1.15V @8A, TO-247 package, dual common-cathode | Higher VF increases conduction loss; same thermal performance (RθJC=2.2°C/W) | Prefer when legacy design uses IXYS footprint and 200V rating suffices |
Compared with STTH1602CT and IXYS MUR1620CT, the SF1603PT offers exact 150V VRRM matching for cost-optimized 120VAC-input designs, center-tap integration reducing transformer complexity, and lowest VF in its voltage class - making it optimal for space-constrained, thermally sensitive DC-DC stages.
Availability
SF1603PT is available at Aetrix Electronics and suitable for DC-DC converters, snubber circuits, lighting applications, and freewheeling diode implementations requiring stable component supply and industrial-grade reliability.
Supply support for SF1603PT 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 automotive, industrial, and computing markets since 1979.
The SF160xPT series targets high-efficiency, high-reliability power conversion systems - specifically engineered for super-fast switching, low-loss rectification in compact, thermally demanding environments.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the SF1603PT?
The SF1603PT has a VRRM rating of 150 V - confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version G2103). This value defines the highest reverse voltage the device can block repeatedly without breakdown. Exceeding 150 V risks avalanche failure, especially at elevated junction temperatures. The SF1603PT is part of an 8-part family spanning 50–600 V, with SF1603PT specifically designated for 150 V applications.
Does the SF1603PT have AEC-Q101 qualification?
The base SF1603PT is not AEC-Q101 qualified; however, the variant SF1603PTH is explicitly listed as AEC-Q101 qualified in the Ordering Information section. The "H" suffix denotes automotive-grade screening and testing per AEC-Q101 Rev D. For automotive applications requiring qualification, SF1603PTH must be specified - it shares identical electrical and thermal specs with SF1603PT but adds stress testing and traceability required for automotive use.
What is the forward voltage (VF) specification for the SF1603PT and under what conditions?
The SF1603PT has a typical forward voltage of 0.95 V at IF = 8 A and TJ = 25°C, per the Electrical Specifications table. This value is measured per diode under pulsed conditions (PW = 0.3 ms). VF rises with temperature and current - at 125°C and 8A, VF is approximately 0.85 V due to negative temperature coefficient. The SF1603PT's low VF directly reduces conduction loss in high-current rectification paths.
How is the pinout configured for the SF1603PT in TO-247AD package?
The SF1603PT uses a 3-pin TO-247AD package with center-tapped dual-diode topology: Pin 1 = Anode 1 (A1), Pin 2 = Cathode (K), Pin 3 = Anode 2 (A2). The internal connection places both anodes electrically isolated and the cathodes joined at the common K terminal. Polarity is marked on the device body per the Marking Diagram in the datasheet. This configuration enables full-wave rectification without external center-tap windings.
What thermal performance can be expected from the SF1603PT in real-world mounting?
The SF1603PT has a junction-to-case thermal resistance (RθJC) of 2°C/W, verified in the Thermal Performance section. With proper mounting (1.13 N·m torque, thermal interface material, and ≥10 cm² aluminum heatsink), it sustains 16 A continuous current at TC ≤75°C. Derating begins above 75°C case temperature - at TC = 100°C, max IF drops to ~11 A. This performance enables compact, fanless power supply designs where thermal management space is constrained.
SF1603PT 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):
- 150 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 @ 150 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
SF1603PT FAQ
1.How can I place an order for SF1603PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SF1603PT 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 SF1603PT reliable?
The price and inventory of SF1603PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1603PT is usually 5 days.
3.What payment methods are accepted for SF1603PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1603PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF1603PT?
SF1603PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF1603PT 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 SF1603PT?
For technical support, including SF1603PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1603PT requirements.
6.How does Aetrix verify that SF1603PT is sourced from the original manufacturer or authorized distributors?
All SF1603PT 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 SF1603PT meets industry standards.
7.What is the process for return or replacement of SF1603PT?
All SF1603PT units undergo pre-shipment inspection (PSI). If there is an issue with SF1603PT, 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 SF1603PT part is unused and in its original packaging.
Return procedure for SF1603PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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