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Taiwan Semiconductor Corporation SF2003PT
- Part No.:
- SF2003PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- TO-247-3
- Datasheet:
-
SF2003PT.pdf
- Description:
- DIODE ARRAY GP 150V 20A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,523
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Product details
Overview
SF2003PT from Taiwan Semiconductor is a 20A, 150V super fast recovery dual rectifier in TO-247AD package with positive center-tap configuration, 35ns reverse recovery time, 1.100V forward voltage at 20A/25°C, and 2.5°C/W junction-to-case thermal resistance - used in DC-DC converters and snubber circuits.
For engineers reviewing the SF2003PT datasheet, SF2003PT pinout, SF2003PT application, or SF2003PT equivalent, key selection criteria include VRRM=150V, IF=20A, trr=35ns, low thermal resistance, and AEC-Q101 qualification availability (SF2003PTH variant).
Technical Context
The SF2003PT integrates two identical silicon die in a single TO-247AD package with shared cathode and isolated anodes, forming a positive-center-tap dual diode topology ideal for full-wave rectification. Its superfast recovery (trr ≤ 35ns) minimizes switching losses in high-frequency SMPS topologies.
Designed with glass-passivated junctions and low RθJC (2.5°C/W), it supports continuous conduction mode operation up to TJ = 150°C. The 150V VRRM rating targets mid-voltage industrial and lighting inverters where efficiency and thermal margin are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse voltage per diode; defines safe operating range in clamping and freewheeling applications |
| IF | 20 A - average forward current per diode; supports high-power DC-DC output stages without forced air cooling |
| trr | 35 ns - reverse recovery time at IF=0.5A, IR=1.0A, Irr=0.25A; enables >100 kHz switching in resonant converters |
| VF | 1.100 V @ 20A, 25°C - forward voltage drop per diode; determines conduction loss and thermal load at rated current |
| RθJC | 2.5 °C/W - junction-to-case thermal resistance; allows direct heatsink mounting with predictable temperature rise under load |
| IFSM | 180 A - non-repetitive surge current (8.3ms half-sine); withstands inrush and fault transients in power supplies |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal molded plastic case with matte tin-plated leads, UL 94V-0 rated compound, polarity marked on device body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode | Connected to AC input leg 1 in center-tap rectifier; electrically isolated from A2 |
| Anode 2 (A2) | Input terminal for second diode | Connected to AC input leg 2 in center-tap rectifier; electrically isolated from A1 |
| Cathode (K) | Common output node | Shared cathode connection delivers full-wave rectified DC output; mounted to heatsink via metal tab |
Key Features
| Feature | Design Value |
|---|---|
| Dual die, positive center-tap configuration | Enables full-wave rectification with single-package integration, reducing PCB area and interconnect inductance |
| Glass passivated junction | Provides robust moisture and contamination resistance for long-term reliability in humid or industrial environments |
| Superfast 35ns recovery | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency converters |
| Low RθJC = 2.5°C/W | Permits higher sustained power dissipation without exceeding TJMAX = 150°C when properly heatsinked |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in North American markets |
Applications
| DC-DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 48V–12V buck-derived converters. IC Role / Device Role / Timing Role: Dual rectifier provides full-wave output with shared cathode, replacing discrete diode pairs. Use Value: 35ns trr and 1.100V VF reduce conduction and switching losses, improving efficiency by ~1.2% over standard FRDs at 200 kHz. | Use Scenario: Output stage of LED driver inverters for street lighting with 150V bus. IC Role / Device Role / Timing Role: Freewheeling and clamp path in half-bridge topology with center-tap secondary winding. Use Value: 150V VRRM and 180A IFSM support transient overvoltage and inrush handling without derating. |
| Snubber Circuit | Freewheeling Diode |
Use Scenario: RCD snubber across MOSFETs in flyback or forward converters operating at 100–250 kHz. IC Role / Device Role / Timing Role: Fast-recovery clamp path limiting voltage overshoot during turn-off. Use Value: 35ns trr ensures rapid turn-on after voltage spike, minimizing energy dissipation in snubber resistor. | Use Scenario: Inductive load protection in industrial motor drivers with 20A coil current. IC Role / Device Role / Timing Role: Provides low-loss return path for stored inductive energy during PWM off-time. Use Value: 2.5°C/W RθJC and 20A IF sustain continuous freewheeling without thermal runaway at ambient ≤ 70°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar superfast dual rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2003D | VRRM=300V, trr=35ns, same TO-247AD package, but single-diode configuration requires external center-tap wiring | Requires PCB redesign for dual-anode routing; not drop-in compatible | Select when higher reverse voltage margin is needed and layout flexibility exists |
| IXYS MUR2015CT | VRRM=150V, trr=35ns, TO-247AC package with identical pinout and dual center-tap topology | Direct functional replacement with same thermal and electrical behavior | Preferred for drop-in substitution where Taiwan Semiconductor supply is constrained |
Compared with STTH2003D and IXYS MUR2015CT, the SF2003PT offers native center-tap integration in TO-247AD, eliminating external trace inductance and simplifying layout - critical for EMI-sensitive 200+ kHz designs.
Availability
SF2003PT is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and snubber circuits requiring stable component supply, automotive-grade reliability (via SF2003PTH variant), and high thermal performance.
Supply support for SF2003PT 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 consumer markets since 1979.
The SF200xPT series was developed to deliver high-efficiency, AEC-Q101-capable superfast rectifiers for compact, thermally demanding power conversion systems - especially in lighting, telecom, and industrial SMPS.
FAQ
What is the maximum junction temperature rating for SF2003PT?
The SF2003PT has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments when paired with appropriate heatsinking and airflow. Derating curves in the datasheet confirm usable current capacity down to 125°C case temperature. Thermal design must respect the 2.5°C/W RθJC to avoid exceeding this limit under full 20A load.
Is SF2003PT pin-compatible with other parts in the SF200xPT family?
Yes, all SF200xPT variants - including SF2001PT through SF2008PT - share identical TO-247AD packaging, pinout, and mechanical footprint. Only VRRM (50V to 600V) and forward voltage characteristics differ between versions. This enables one PCB layout to support multiple voltage grades, simplifying inventory and design reuse for SF2003PT and related parts.
Does SF2003PT meet automotive qualification standards?
The base SF2003PT is not AEC-Q101 qualified, but the SF2003PTH variant is explicitly listed as AEC-Q101 qualified in the ordering information. Both share identical electrical and thermal specifications; only the H-suffix denotes automotive-grade screening and traceability. For automotive applications, specify SF2003PTH to ensure compliance with stress testing and lot traceability requirements.
What is the reverse recovery time test condition for SF2003PT?
The SF2003PT reverse recovery time (trr) is specified as ≤35ns under the condition: IF = 0.5A, IR = 1.0A, Irr = 0.25A, measured per JEDEC JESD24-11. This reflects real-world switching behavior in hard-commutated topologies. The value is consistent across the SF2001PT–SF2004PT group due to shared die process and structure.
How does the center-tap configuration of SF2003PT affect circuit layout?
The SF2003PT's internal positive center-tap configuration places both anodes (A1, A2) as separate terminals and the cathode (K) as the common output - enabling full-wave rectification without external center-tap wiring. This reduces PCB trace inductance and parasitic capacitance versus discrete dual-diode solutions, improving EMI performance and layout density in space-constrained SMPS designs using SF2003PT.
SF2003PT 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):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 20 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)
SF2003PT FAQ
1.How can I place an order for SF2003PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SF2003PT 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 SF2003PT reliable?
The price and inventory of SF2003PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF2003PT is usually 5 days.
3.What payment methods are accepted for SF2003PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF2003PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF2003PT?
SF2003PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF2003PT 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 SF2003PT?
For technical support, including SF2003PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF2003PT requirements.
6.How does Aetrix verify that SF2003PT is sourced from the original manufacturer or authorized distributors?
All SF2003PT 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 SF2003PT meets industry standards.
7.What is the process for return or replacement of SF2003PT?
All SF2003PT units undergo pre-shipment inspection (PSI). If there is an issue with SF2003PT, 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 SF2003PT part is unused and in its original packaging.
Return procedure for SF2003PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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