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Taiwan Semiconductor Corporation SFS1608G
- Part No.:
- SFS1608G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
SFS1608G.pdf
- Description:
- DIODE GEN PURP 600V 16A TO263AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,595
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Product details
Overview
SFS1608G from Taiwan Semiconductor is a 16A, 600V super fast surface-mount rectifier in TO-263AB (D2PAK) package, featuring 1.700V max forward voltage at 8A/25°C, 35ns reverse recovery time, and dual-die configuration for high-efficiency DC-DC converters and switching inverters.
For engineers reviewing the SFS1608G datasheet, SFS1608G pinout, SFS1608G application, or SFS1608G equivalent, key selection criteria include peak reverse voltage rating (600V), thermal resistance (2.5°C/W), surge capability (125A), junction temperature limit (+150°C), and RoHS/halogen-free compliance for industrial power designs.
Technical Context
The SFS1608G integrates two fast-recovery diode dies in a single TO-263AB thermally optimized package, enabling high-current freewheeling and output rectification in high-frequency switch-mode topologies. Its 35ns trr and low 1.700V VF at 8A support efficient operation above 100kHz.
Designed for automated SMT assembly, it meets J-STD-020 Level 1 moisture sensitivity, JESD 201 Class 2 whisker resistance, and UL 94V-0 molding compound requirements - critical for reflow reliability in volume production.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse blocking voltage, defines safe operating range in 400–600V bus applications |
| IF | 16 A - continuous average forward current, supports sustained 16A conduction without derating at TC ≤ 100°C |
| IFSM | 125 A - non-repetitive surge current (8.3ms half-sine), handles startup/load dump transients in SMPS |
| VF (max) | 1.700 V @ 8A, 25°C - forward drop directly impacts conduction loss and thermal design in high-current paths |
| trr | 35 ns - reverse recovery time determines switching loss and EMI behavior in >50kHz converters |
| RθJC | 2.5 °C/W - junction-to-case thermal resistance enables direct heatsink mounting for thermal management |
| CJ | 60 pF @ 1MHz, 4V - junction capacitance affects high-frequency noise coupling and snubber design |
Pinout & Package
Package: TO-263AB (D2PAK), 3-terminal surface-mount package with exposed metal tab (cathode-connected) for thermal and electrical performance. Dimensions per Taiwan Semiconductor Package Outline Drawing Rev. O2103.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Input terminal for first diode die | Connects to switching node or transformer secondary; carries full forward current during conduction phase |
| Anode 2 | Input terminal for second diode die | Enables dual-channel or center-tapped rectification; electrically isolated from Anode 1 |
| Cathode (Tab) | Common cathode connection for both dies | Exposed metal tab serves as primary thermal path and common output node; must be soldered to PCB copper pour |
Key Features
| Feature | Design Value |
|---|---|
| Super fast recovery (trr ≤ 35 ns) | Reduces switching losses and improves efficiency in high-frequency (>100 kHz) SMPS topologies |
| Dual-die configuration | Supports independent or paralleled rectification paths without external isolation components |
| Low VF (1.700 V max @ 8A) | Lowers conduction loss by ~15% vs. standard fast rectifiers at same current, easing thermal design |
| J-STD-020 Level 1 MSL | Eliminates bake requirement before reflow, reducing manufacturing cost and process complexity |
| RoHS + halogen-free (IEC 61249-2-21) | Meets global environmental compliance mandates for industrial and consumer end equipment |
Applications
| DC-DC Converter Output Rectification | Switching Inverter Freewheeling |
|---|---|
Use Scenario: High-efficiency isolated DC-DC converter (e.g., 48V–12V telecom PSU) operating at 200kHz with synchronous rectification constraints. IC Role / Device Role / Timing Role: Primary output rectifier handling 16A continuous load current with minimal conduction and switching loss. Use Value: 600V VRRM and 1.700V VF enable >94% efficiency at full load while maintaining thermal margin under forced-air cooling. | Use Scenario: Three-phase motor drive inverter using IGBTs, requiring fast freewheeling paths during PWM dead-time intervals. IC Role / Device Role / Timing Role: Freewheeling diode across each IGBT leg, conducting reverse recovery current with <35ns trr to minimize shoot-through risk. Use Value: 125A IFSM withstands motor stall surges; dual-die layout allows compact placement adjacent to power switches. |
| High-Voltage AC-DC PFC Stage | Industrial UPS Battery Charging Circuit |
Use Scenario: Boost PFC front-end in 3kW industrial power supply where input rectification follows bridge stage and feeds boost inductor. IC Role / Device Role / Timing Role: Fast recovery diode in boost output path, conducting high-frequency ripple current with low stored charge. Use Value: 60pF CJ and 35ns trr reduce EMI generation and improve power factor correction accuracy at 70kHz switching frequency. | Use Scenario: Bidirectional battery charger in 48V industrial UPS, requiring robust reverse-blocking capability during discharge mode. IC Role / Device Role / Timing Role: Isolation and polarity protection diode in charging path, blocking up to 600V reverse voltage during system faults. Use Value: 600V VRRM and +150°C TJ rating ensure reliable operation during extended overvoltage events and ambient temperatures up to 85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1606D | 600V VRRM, 16A IF, 35ns trr, but VF = 1.85V @ 8A (higher conduction loss) | Same TO-220AC package - requires PCB redesign for TO-263AB footprint | Choose when legacy TO-220 layout exists and thermal margin permits higher VF |
| IXYS MBR1660CT | 600V VRRM, 16A IF, but Schottky construction - no reverse recovery (trr = N/A), VF = 1.25V, but IR = 1mA @ 125°C (higher leakage) | Not suitable for high-temperature reverse-biased hold applications due to leakage | Prefer for low-noise, low-loss DC-DC where reverse leakage is tolerable and TJ < 100°C |
Compared with STTH1606D and MBR1660CT, the SFS1608G delivers optimal balance of low VF (1.700V), ultra-fast trr (35ns), and TO-263AB thermal performance - making it preferred for space-constrained, high-frequency industrial SMPS where both switching and conduction losses must be minimized.
Availability
SFS1608G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial UPS systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SFS1608G 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 global industrial, computing, and automotive markets since 1979.
The SFS1608G belongs to TSC's Super Fast Rectifier product line, engineered specifically for high-efficiency, high-frequency switch-mode power supplies where fast recovery, low forward drop, and robust surge capability are essential.
FAQ
What is the maximum junction temperature rating for the SFS1608G?
The SFS1608G has a maximum junction temperature (TJ) rating of +150°C, validated per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version O2103. This allows operation in high-ambient environments such as enclosed industrial power supplies, provided thermal design maintains case temperature within derating limits. The SFS1608G must not exceed this TJ limit during steady-state or transient conditions to ensure reliability.
Does the SFS1608G have a dual-diode configuration, and how are the terminals arranged?
Yes, the SFS1608G contains two independent super fast rectifier dies in a single TO-263AB package. It features two anode terminals (Anode 1 and Anode 2) and one common cathode terminal (exposed metal tab). This arrangement supports dual-channel rectification or center-tapped transformer outputs without external isolation. The SFS1608G marking diagram confirms polarity and terminal assignment per datasheet page 5.
What is the forward voltage specification for the SFS1608G at rated current?
The SFS1608G has a maximum forward voltage (VF) of 1.700 V at IF = 8 A and TJ = 25°C, as specified in the Electrical Specifications table (page 2, Version O2103). At full rated current (16 A), VF increases proportionally per the typical forward characteristics curve (Fig.4), reaching approximately 1.95 V at 25°C. This VF value directly determines conduction loss in the SFS1608G's application circuit.
Is the SFS1608G suitable for use in RoHS-compliant and halogen-free designs?
Yes, the SFS1608G is certified RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet (Version O2103, page 1). The "G" suffix denotes green compound, and all materials meet JEDEC and IPC standards for environmentally restricted substances - confirming full compliance for SFS1608G in regulated commercial and industrial end products.
What is the reverse recovery time (trr) of the SFS1608G, and under what test conditions is it measured?
The SFS1608G has a maximum reverse recovery time (trr) 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 (page 2, Version O2103). This parameter is critical for minimizing switching loss and EMI in high-frequency converters. The SFS1608G's trr remains stable across its rated temperature range, supporting consistent timing behavior in demanding SMPS applications.
SFS1608G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 600 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263AB (D2PAK)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SFS1608G FAQ
1.How can I place an order for SFS1608G through Aetrix?
Please submit a Request for Quotation (RFQ) for SFS1608G 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 SFS1608G reliable?
The price and inventory of SFS1608G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFS1608G is usually 5 days.
3.What payment methods are accepted for SFS1608G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFS1608G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SFS1608G?
SFS1608G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SFS1608G 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 SFS1608G?
For technical support, including SFS1608G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFS1608G requirements.
6.How does Aetrix verify that SFS1608G is sourced from the original manufacturer or authorized distributors?
All SFS1608G 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 SFS1608G meets industry standards.
7.What is the process for return or replacement of SFS1608G?
All SFS1608G units undergo pre-shipment inspection (PSI). If there is an issue with SFS1608G, 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 SFS1608G part is unused and in its original packaging.
Return procedure for SFS1608G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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