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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation SFAF1608G

Name: SFAF1608G
Brand: Taiwan Semiconductor Corporation
SKU: SFAF1608G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFAF1608G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2 Full Pack

Datasheet:: SFAF1608G.pdf

Description:: DIODE GEN PURP 600V 16A ITO220AC

Quantity:: RFQ Add To RFQ list

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Inventory:991

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Product details

Overview

SFAF1608G from Taiwan Semiconductor is a 16 A, 600 V repetitive peak reverse voltage (V_RRM) super fast rectifier diode in ITO-220AC package, featuring 1.700 V forward voltage at 16 A and 25°C, 35 ns reverse recovery time, and 100 pF junction capacitance - deployed in high-frequency switching mode power supplies and freewheeling paths.

For engineers reviewing the SFAF1608G datasheet, SFAF1608G pinout, SFAF1608G application, or SFAF1608G equivalent, key selection criteria include verified V_RRM = 600 V, I_F = 16 A continuous rating, trr ≤ 35 ns, R_θJC = 1.3 °C/W thermal resistance, and AEC-Q101 qualification availability (SFAF1608GH variant).

Technical Context

The SFAF1608G is a single-die, glass-passivated super fast recovery rectifier optimized for high-efficiency DC/DC conversion and inverter freewheeling. Its 600 V V_RRM, 200 A non-repetitive surge capability (IFSM), and 150°C maximum junction temperature support robust operation under transient overloads and elevated ambient conditions.

With 100 pF junction capacitance at 1 MHz / 4.0 V and trr = 35 ns measured under IF = 0.5 A / IR = 1.0 A / Irr = 0.25 A, the device delivers low switching loss and minimal ringing in hard-switched topologies - critical for >100 kHz SMPS designs requiring fast turn-off and low stored charge.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - supports primary-side rectification in universal-input offline SMPS up to 400 V DC bus with safety margin
I_F	16 A continuous - enables compact heatsinking in 200–500 W power stages without forced air
V_F	1.700 V @ 16 A, 25°C - contributes ≤27.2 W conduction loss per device at full load
t_rr	35 ns - limits reverse recovery charge (Q_rr) to reduce switching loss and EMI in hard-switched converters
R_θJC	1.3 °C/W - allows direct mounting to heatsink with <1.3°C rise per watt, simplifying thermal design
C_J	100 pF @ 1 MHz, 4.0 V - minimizes capacitive coupling and dv/dt-induced turn-on in bridge configurations
I_FSM	200 A @ 8.3 ms half-sine - withstands inrush and fault currents in motor drives and UPS systems

Pinout & Package

Package: ITO-220AC - isolated tab, single-ended through-hole package with matte tin-plated leads, UL 94V-0 molding compound, and 0.56 N·m max mounting torque. Polarity marked on case.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Current entry point during forward conduction	Connected to lower-potential node (e.g., switch node in buck sync rectifier or transformer secondary center-tap)
Cathode (Lead 2)	Current exit point during forward conduction; electrically tied to metal tab	Tab serves as cathode terminal and primary thermal path - must be electrically isolated from heatsink unless system ground reference permits
Metal Tab	Cathode terminal and thermal interface	Provides low-resistance thermal path (R_θJC = 1.3 °C/W); requires insulating washer if mounted to grounded heatsink

Key Features

Feature	Design Value
Glass-passivated junction	Ensures long-term reliability and moisture resistance in automotive and industrial environments per JESD201 Class 2 whisker test
AEC-Q101 qualified option (SFAF1608GH)	Validated for automotive powertrain and body electronics applications requiring zero defect and stress-test compliance
UL Recognized (E-326243)	Meets safety requirements for end equipment certification including industrial power supplies and EV charging modules
Halogen-free & RoHS compliant	Supports environmental compliance for global OEMs and eliminates corrosive halogen emissions during PCB reflow or fire events
1.70 g typical weight	Enables mechanical stability in vibration-prone applications such as onboard chargers and traction inverters

Applications

DC/DC Converter	Switching Inverter
Use Scenario: Secondary-side synchronous rectification in isolated 48 V–600 V input telecom and server PSUs. IC Role / Device Role / Timing Role: Super fast rectifier replacing Schottky diodes where higher V_RRM and lower leakage are required. Use Value: Enables 600 V blocking with 10 µA IR at 25°C and 400 µA at 100°C - reducing standby loss vs. lower-voltage alternatives.	Use Scenario: Freewheeling path in three-phase motor drive inverters operating up to 400 V DC bus. IC Role / Device Role / Timing Role: Clamp diode across IGBTs to absorb inductive kickback energy during turn-off. Use Value: 35 ns t_rr and 200 A I_FSM prevent voltage overshoot and ensure safe commutation under dynamic load changes.
Industrial SMPS	Renewable Energy Inverter
Use Scenario: Output rectification in 300–500 W industrial AC/DC power supplies with wide input range. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 16 A load with minimal conduction loss. Use Value: 1.700 V V_F at 16 A yields predictable thermal rise (≤21°C above heatsink at 20 W dissipation), easing thermal margining.	Use Scenario: Bypass and clamping in solar microinverters interfacing 60–100 V PV strings. IC Role / Device Role / Timing Role: Fast-recovery clamp diode protecting MOSFETs from reverse recovery-induced shoot-through. Use Value: 100 pF C_J and 35 ns t_rr suppress parasitic oscillation and reduce gate drive stress in high dv/dt environments.

DC/DC Converter

Switching Inverter

Use Scenario: Secondary-side synchronous rectification in isolated 48 V–600 V input telecom and server PSUs.

IC Role / Device Role / Timing Role: Super fast rectifier replacing Schottky diodes where higher V_RRM and lower leakage are required.

Use Value: Enables 600 V blocking with 10 µA IR at 25°C and 400 µA at 100°C - reducing standby loss vs. lower-voltage alternatives.

Use Scenario: Freewheeling path in three-phase motor drive inverters operating up to 400 V DC bus.

IC Role / Device Role / Timing Role: Clamp diode across IGBTs to absorb inductive kickback energy during turn-off.

Use Value: 35 ns t_rr and 200 A I_FSM prevent voltage overshoot and ensure safe commutation under dynamic load changes.

Industrial SMPS

Renewable Energy Inverter

Use Scenario: Output rectification in 300–500 W industrial AC/DC power supplies with wide input range.

IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 16 A load with minimal conduction loss.

Use Value: 1.700 V V_F at 16 A yields predictable thermal rise (≤21°C above heatsink at 20 W dissipation), easing thermal margining.

Use Scenario: Bypass and clamping in solar microinverters interfacing 60–100 V PV strings.

IC Role / Device Role / Timing Role: Fast-recovery clamp diode protecting MOSFETs from reverse recovery-induced shoot-through.

Use Value: 100 pF C_J and 35 ns t_rr suppress parasitic oscillation and reduce gate drive stress in high dv/dt environments.

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	V_RRM = 600 V, I_F = 16 A, t_rr = 35 ns, but VF = 1.85 V @ 16 A - 8.8% higher conduction loss than SFAF1608G	Same ITO-220AC package; slightly higher thermal resistance (R_θJC = 1.5 °C/W) limits power density	Prefer SFAF1608G when minimizing conduction loss and thermal footprint is critical
IXYS MUR1660CT	Dual common-cathode configuration (2×8 A), V_RRM = 600 V, t_rr = 35 ns, VF = 1.75 V - not single-die, different pinout and layout	Requires PCB redesign; suited for dual-output or interleaved designs, not direct replacement	Select only if dual-diode topology is needed; SFAF1608G remains optimal for single-channel 16 A freewheeling

Compared with STTH1606D and IXYS MUR1660CT, the SFAF1608G offers the lowest forward voltage (1.700 V) among 600 V/16 A super fast rectifiers in ITO-220AC, delivering superior thermal efficiency and enabling smaller heatsinks in space-constrained industrial and automotive power stages.

Availability

SFAF1608G is available at Aetrix Electronics and suitable for DC/DC converters, switching inverters, industrial SMPS, and renewable energy inverters requiring stable component supply, long-lifecycle support, and AEC-Q101-qualified variants (SFAF1608GH).

Supply support for SFAF1608G 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 industrial, automotive, and computing markets since 1979.

The SFAF1608G belongs to TSC's super fast rectifier product line, engineered specifically for high-frequency switching power conversion where low V_F, fast t_rr, and rugged surge capability are essential - targeting SMPS, UPS, and motor control applications.

FAQ

What is the maximum junction temperature rating for the SFAF1608G?

The SFAF1608G has a maximum junction temperature (T_J) of +150°C, validated across its full operating range. This rating enables reliable operation in high-ambient environments such as enclosed industrial enclosures or under-hood automotive locations when paired with appropriate heatsinking. Derating curves confirm usable current capacity down to 125°C case temperature, ensuring design margin for thermal transients.

Does the SFAF1608G have AEC-Q101 qualification?

The base SFAF1608G is not AEC-Q101 qualified; however, the SFAF1608GH variant - identical in electrical and thermal specifications - is fully AEC-Q101 qualified per Rev H2105 documentation. The "H" suffix denotes automotive-grade screening, including stress testing for temperature cycling, humidity bias, and mechanical shock. Customers requiring automotive compliance must specify SFAF1608GH.

What is the reverse recovery time (t_rr) test condition for the SFAF1608G?

The SFAF1608G reverse recovery time is specified as ≤35 ns under the standardized test condition: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, with measurement performed at TA = 25°C. This reflects real-world commutation behavior in hard-switched converters and ensures predictable turn-off performance when used as a freewheeling or clamp diode in inverter legs.

Is the metal tab of the SFAF1608G electrically isolated?

No - the metal tab of the SFAF1608G is electrically connected to the cathode (Lead 2), as confirmed by the ITO-220AC mechanical drawing and polarity marking. When mounting to a heatsink, an electrically insulating thermal pad or mica washer must be used unless the heatsink is referenced to the cathode potential. Failure to isolate may cause short circuits in floating or high-side configurations.

What is the forward voltage (V_F) of the SFAF1608G at elevated temperature?

The SFAF1608G forward voltage decreases with rising junction temperature - typical V_F drops to ~1.55 V at TJ = 125°C (per Fig.4 forward characteristics curve). This negative temperature coefficient improves current sharing in parallel configurations but requires thermal-aware layout to avoid localized hot spots. At 16 A and 125°C, conduction loss falls to ~24.8 W, reducing thermal stress relative to room-temperature operation.

SFAF1608G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-2 Full Pack

Packaging:: Tube

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 @ 16 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 600 V

Capacitance @ Vr, F:: 100pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AC

Operating Temperature - Junction:: -55°C ~ 150°C

SFAF1608G FAQ

1.How can I place an order for SFAF1608G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFAF1608G 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 SFAF1608G reliable?

The price and inventory of SFAF1608G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1608G is usually 5 days.

3.What payment methods are accepted for SFAF1608G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1608G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFAF1608G?

SFAF1608G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFAF1608G 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 SFAF1608G?

For technical support, including SFAF1608G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1608G requirements.

6.How does Aetrix verify that SFAF1608G is sourced from the original manufacturer or authorized distributors?

All SFAF1608G 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 SFAF1608G meets industry standards.

7.What is the process for return or replacement of SFAF1608G?

All SFAF1608G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1608G, 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 SFAF1608G part is unused and in its original packaging.

Return procedure for SFAF1608G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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