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Taiwan Semiconductor Corporation SF1606PT
- Part No.:
- SF1606PT
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-247-3
- Datasheet:
-
SF1606PT.pdf
- Description:
- DIODE GEN PURP 400V 16A TO247AD
- Quantity:
- Payment:
- Shipping:
Inventory:900
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Product details
Overview
SF1606PT from Taiwan Semiconductor is a dual-die, positive-center-tap superfast rectifier in TO-247AD package, rated for 400 V repetitive peak reverse voltage (VRRM), 16 A average forward current (IF), and 35 ns reverse recovery time (trr). It delivers low forward voltage (1.30 V at 8 A, 25°C) and high surge capability (150 A IFSM), suited for snubber and freewheeling roles in high-frequency switching power supplies.
For engineers reviewing the SF1606PT datasheet, SF1606PT pinout, SF1606PT application, or SF1606PT equivalent, key selection factors include its 400 V VRRM rating, dual-center-tap configuration, TO-247AD thermal performance (RθJC = 2°C/W), and AEC-Q101 qualification availability across the SF16xxPT family.
Technical Context
The SF1606PT integrates two identical silicon die in a single TO-247AD package with shared cathode and isolated anodes - forming a positive-center-tap dual rectifier topology. Its superfast recovery (trr ≤ 35 ns) and low Qrr support operation in 100–500 kHz SMPS designs without excessive switching loss.
Thermally, the device achieves RθJC = 2°C/W via copper leadframe and glass-passivated junctions, enabling 16 A continuous conduction at case temperatures up to 105°C. Reverse leakage remains ≤10 µA at 25°C and ≤500 µA at 125°C under rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports DC bus voltages up to 280 V RMS in bridge-configured SMPS inputs |
| IF | 16 A - continuous average forward current per diode at TC = 105°C |
| trr | 35 ns - enables efficient operation in high-frequency converters (>200 kHz) with minimal tail current loss |
| VF | 1.30 V @ 8 A, 25°C - reduces conduction loss vs. standard fast rectifiers (typically >1.5 V) |
| RθJC | 2°C/W - allows direct heatsink mounting with predictable thermal rise under full load |
| IFSM | 150 A - withstands inrush and transient surges common in PFC and LLC resonant stages |
Pinout & Package
Package: TO-247AD (TO-3P), 3-terminal, isolated-anode dual-diode configuration with center-tapped cathode. Mounting torque ≤1.13 N·m; matte tin-plated leads compliant with J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode | Electrically isolated anode; connects to one leg of AC input or transformer secondary |
| Anode 2 (A2) | Input terminal for second diode | Electrically isolated anode; connects to opposite leg of AC input or transformer secondary |
| Cathode (K) | Common output node (center tap) | Shared cathode node - serves as DC output reference point in full-wave center-tap rectification |
Key Features
| Feature | Design Value |
|---|---|
| Dual die, positive-center-tap topology | Enables full-wave rectification with single-package layout; eliminates need for two discrete diodes and external node tie |
| Glass-passivated junction | Ensures long-term reliability under humidity and thermal cycling; meets industrial and automotive stress requirements |
| UL Recognized (E-326243) | Validates safety compliance for end-equipment certification in AC/DC power supplies and lighting systems |
| AEC-Q101 qualification option | Supports automotive-grade deployment where robustness against temperature, vibration, and ESD is mandatory |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 12–48 V outputs. IC Role / Device Role / Timing Role: Dual-center-tap rectifier providing low-loss, high-efficiency DC output generation with minimal PCB footprint. Use Value: 1.30 V VF and 35 ns trr reduce both conduction and switching losses, improving overall converter efficiency by ≥1.2% at 250 kHz. | Use Scenario: Output stage rectification in single-phase motor inverters and UPS systems operating at 20–100 kHz. IC Role / Device Role / Timing Role: Freewheeling and regeneration path management during PWM dead-time intervals. Use Value: Low Qrr and 150 A IFSM suppress voltage spikes and enable reliable regenerative braking without snubber oversizing. |
| LED Driver | Snubber Network |
Use Scenario: High-power constant-current LED drivers using active PFC + LLC topology with 350–700 V DC link. IC Role / Device Role / Timing Role: Bridge rectifier input stage handling 400 V VRRM-rated AC line transients and harmonics. Use Value: 400 V VRRM and 10 µA IR at 25°C ensure stable operation under brownout and overvoltage conditions without leakage-induced dimming drift. | Use Scenario: RC-D clamp snubber across MOSFETs or IGBTs in high-voltage flyback and resonant converters. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing turn-off energy with minimal reverse recovery overshoot. Use Value: 35 ns trr limits voltage ringing amplitude and reduces snubber capacitor stress, extending component lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-center-tap superfast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1604D | 400 V VRRM, 16 A IF, TO-247 package, trr = 30 ns, VF = 1.25 V @ 8 A | Single-diode configuration - requires external parallel pairing for center-tap function | Select when board layout allows discrete dual placement and tighter trr tolerance is critical |
| IXYS MUR1640CT | 400 V VRRM, 16 A IF, TO-247 package, trr = 35 ns, VF = 1.35 V @ 8 A, center-tap construction | Same mechanical and electrical interface; slightly higher VF increases conduction loss by ~0.05 V | Drop-in replacement if existing design uses MUR1640CT footprint and thermal margin permits 0.05 V VF increase |
Compared with STTH1604D, SF1606PT integrates dual dies in one package - reducing layout area and parasitic inductance - while matching trr and exceeding VF performance. Against MUR1640CT, SF1606PT offers lower VF and AEC-Q101 qualification option, making it preferable for automotive and high-efficiency industrial designs.
Availability
SF1606PT is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, LED drivers, and snubber networks requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for SF1606PT 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 industrial, computing, and automotive markets since 1979.
The SF16xxPT series targets high-reliability power conversion applications demanding low-loss, fast-recovery rectification in compact TO-247AD packages - especially where center-tap topology simplifies transformer design and improves system efficiency.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for SF1606PT?
The SF1606PT has a VRRM rating of 400 V, confirmed in the Absolute Maximum Ratings table for the SF1605PT–SF1606PT group. This value defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown, making it suitable for 280 V RMS AC inputs or 400 V DC bus applications.
Does SF1606PT have AEC-Q101 qualification?
The SF1606PT itself is not explicitly marked as AEC-Q101 qualified in the provided documentation; however, the SF16xxPT family offers AEC-Q101 qualification in the "H" suffix variant (e.g., SF1606PTH). Standard SF1606PT is industrial-grade, while SF1606PTH meets automotive stress test requirements including temperature cycling and HTRB.
What is the forward voltage (VF) specification for SF1606PT at operating conditions?
SF1606PT specifies VF = 1.30 V maximum at IF = 8 A and TJ = 25°C, per the Electrical Specifications table. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to negative temperature coefficient - typical behavior for silicon superfast rectifiers.
How is the pin configuration arranged in SF1606PT's TO-247AD package?
SF1606PT uses a 3-pin TO-247AD package with Anode 1, Anode 2, and common Cathode terminals. The cathode is center-tapped and electrically shared between both internal dies - enabling full-wave rectification without external node connection. Pin 1 = A1, Pin 2 = K (cathode), Pin 3 = A2, per standard TO-247AD mechanical outline.
What thermal resistance does SF1606PT exhibit from junction to case?
SF1606PT has a typical junction-to-case thermal resistance (RθJC) of 2°C/W, as specified in the Thermal Performance section. This value assumes proper mounting with thermal compound and a flat, clean heatsink surface - enabling 16 A continuous operation with ≤32°C temperature rise above case temperature.
SF1606PT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-247-3
- 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 @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 85pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-247AD (TO-3P)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SF1606PT FAQ
1.How can I place an order for SF1606PT through Aetrix?
Please submit a Request for Quotation (RFQ) for SF1606PT 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 SF1606PT reliable?
The price and inventory of SF1606PT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1606PT is usually 5 days.
3.What payment methods are accepted for SF1606PT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1606PT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SF1606PT?
SF1606PT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SF1606PT 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 SF1606PT?
For technical support, including SF1606PT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1606PT requirements.
6.How does Aetrix verify that SF1606PT is sourced from the original manufacturer or authorized distributors?
All SF1606PT 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 SF1606PT meets industry standards.
7.What is the process for return or replacement of SF1606PT?
All SF1606PT units undergo pre-shipment inspection (PSI). If there is an issue with SF1606PT, 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 SF1606PT part is unused and in its original packaging.
Return procedure for SF1606PT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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