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

Taiwan Semiconductor Corporation SFAF1601G

Name: SFAF1601G
Brand: Taiwan Semiconductor Corporation
SKU: SFAF1601G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFAF1601G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-2 Full Pack

Datasheet:: SFAF1601G.pdf

Description:: 35NS, 16A, 50V, SUPER FAST RECOV

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SFAF1601G from Taiwan Semiconductor is a 16A, 50V repetitive peak reverse voltage (V_RRM) super fast rectifier diode in ITO-220AC package, featuring 0.975V forward voltage at 16A/25°C, 35ns reverse recovery time, and 1.3°C/W junction-to-case thermal resistance-designed for high-efficiency DC-DC converters and freewheeling paths in automotive-grade power supplies.

For engineers reviewing the SFAF1601G datasheet, SFAF1601G pinout, SFAF1601G application, or SFAF1601G equivalent, key selection criteria include its AEC-Q101 qualification option (SFAF1601GH), low V_F at rated current, robust 200A surge capability, and UL Recognized status (E-326243) for safety-critical power conversion designs.

Technical Context

This super fast rectifier uses a glass passivated silicon die optimized for switching-mode power supplies, delivering fast recovery (t_rr ≤ 35 ns) with low stored charge to minimize switching losses. Its single-die configuration and ITO-220AC thermally enhanced package support high-current conduction while maintaining TJ ≤ 150°C under continuous 16A operation.

The device operates across -55°C to +150°C junction temperature range, with reverse leakage limited to 10 µA at 25°C and 400 µA at 100°C, and exhibits 130 pF junction capacitance at 1 MHz/4.0V-enabling stable performance in high-frequency converter topologies up to several hundred kHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum non-repetitive reverse blocking voltage; defines minimum input/output isolation margin in 12–24V DC-DC stages
I_F	16 A - Continuous average forward current; supports ≥200W output in 12V/16A buck converters with proper heatsinking
V_F	0.975 V @ 16A, 25°C - Low conduction loss enables >95% efficiency in mid-power SMPS designs
t_rr	35 ns - Fast recovery minimizes reverse recovery spikes and EMI in hard-switched topologies
R_θJC	1.3 °C/W - Enables thermal management with standard PCB copper area or small heatsink for 16A steady-state
I_FSM	200 A @ 8.3 ms - Withstands inrush and fault currents in automotive and industrial 24V systems
Junction temp	-55°C to +150°C - Supports operation in under-hood automotive environments and sealed industrial enclosures

Pinout & Package

Package: ITO-220AC - Thermally optimized 3-lead through-hole package with isolated collector tab, matte tin-plated leads (J-STD-002 compliant), UL 94V-0 molding compound, and 1.70g mass. Mounting torque ≤ 0.56 N·m.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to input/high-side node in freewheeling or output rectification path
Cathode (Lead 2)	Forward current exit point	Connected to ground or return path; electrically tied to metal tab in ITO-220AC
Tab (Collector)	Thermal & electrical cathode connection	Must be electrically isolated from heatsink unless circuit design requires cathode-to-chassis tie; primary heat dissipation path

Key Features

Feature	Design Value
Glass passivated junction	Enhances humidity resistance and long-term reliability in automotive under-hood and industrial control environments
AEC-Q101 qualified version available	SFAF1601GH meets stress test requirements for automotive power electronics per JESD22-A108
UL Recognized (E-326243)	Validates flammability, tracking, and dielectric strength compliance for end-equipment safety certification
Halogen-free (IEC 61249-2-21)	Meets RoHS and environmental compliance mandates for global OEM supply chains
Low V_F + fast t_rr	Reduces both conduction and switching losses simultaneously-critical for high-density 100–500 kHz converters

Applications

Automotive DC-DC Converters	Industrial Switch-Mode Power Supplies
Use Scenario: 12V-to-5V/3.3V step-down conversion in engine control units (ECUs) and ADAS domain controllers. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck converters operating at 250–400 kHz. Use Value: 0.975V V_F reduces conduction loss by ~15% vs. standard FRDs; 35ns t_rr suppresses voltage overshoot during high-dV/dt switching.	Use Scenario: Secondary-side rectification in 24V/48V telecom and factory automation PSUs. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward or LLC resonant converters. Use Value: 200A I_FSM withstands startup surges; 1.3°C/W R_θJC allows direct mounting to aluminum chassis without thermal interface material.
Renewable Energy Inverters	Motor Drive Freewheeling Paths
Use Scenario: DC-link clamping and auxiliary supply rectification in solar microinverters and battery storage systems. IC Role / Device Role / Timing Role: Snubber and clamp diode in half-bridge gate drive supplies and PV string monitoring circuits. Use Value: 150°C T_JMAX ensures stability during ambient temperature excursions; 10 µA I_R at 25°C prevents leakage-induced bias drift in precision sensing paths.	Use Scenario: Inductive kickback suppression in 3-phase BLDC motor drivers for HVAC and pumps. IC Role / Device Role / Timing Role: Freewheeling path for upper-leg IGBTs/MOSFETs during PWM dead-time intervals. Use Value: Fast 35ns t_rr limits reverse recovery energy dissipation; low C_J (130 pF) avoids capacitive coupling into gate drive signals.

Automotive DC-DC Converters

Industrial Switch-Mode Power Supplies

Use Scenario: 12V-to-5V/3.3V step-down conversion in engine control units (ECUs) and ADAS domain controllers.

IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant buck converters operating at 250–400 kHz.

Use Value: 0.975V V_F reduces conduction loss by ~15% vs. standard FRDs; 35ns t_rr suppresses voltage overshoot during high-dV/dt switching.

Use Scenario: Secondary-side rectification in 24V/48V telecom and factory automation PSUs.

IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward or LLC resonant converters.

Use Value: 200A I_FSM withstands startup surges; 1.3°C/W R_θJC allows direct mounting to aluminum chassis without thermal interface material.

Renewable Energy Inverters

Motor Drive Freewheeling Paths

Use Scenario: DC-link clamping and auxiliary supply rectification in solar microinverters and battery storage systems.

IC Role / Device Role / Timing Role: Snubber and clamp diode in half-bridge gate drive supplies and PV string monitoring circuits.

Use Value: 150°C T_JMAX ensures stability during ambient temperature excursions; 10 µA I_R at 25°C prevents leakage-induced bias drift in precision sensing paths.

Use Scenario: Inductive kickback suppression in 3-phase BLDC motor drivers for HVAC and pumps.

IC Role / Device Role / Timing Role: Freewheeling path for upper-leg IGBTs/MOSFETs during PWM dead-time intervals.

Use Value: Fast 35ns t_rr limits reverse recovery energy dissipation; low C_J (130 pF) avoids capacitive coupling into gate drive signals.

Equivalent & Alternatives

The following parts are listed as comparable options for similar super fast rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1605D (STMicroelectronics)	50V V_RRM, 16A I_F, 30ns t_rr, TO-220AC package, no AEC-Q101 option	Lower t_rr but lacks automotive qualification and UL recognition	Preferred where ultra-fast recovery dominates over safety certification
VS-16EWH05FN-M3 (Vishay)	50V V_RRM, 16A I_F, 35ns t_rr, TO-220AC, AEC-Q101 qualified, UL recognized (E316325)	Same core specs and qualifications; slightly higher V_F (1.05V typ.)	Drop-in alternative when sourcing diversification is required without layout change

Compared with STTH1605D and VS-16EWH05FN-M3, the SFAF1601G offers identical speed and thermal performance with lower forward voltage, while retaining full AEC-Q101 and UL qualification-making it optimal for automotive and safety-certified industrial designs where conduction loss reduction is prioritized.

Availability

SFAF1601G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and motor drive freewheeling paths requiring stable component supply, long-term lifecycle assurance, and traceable AEC-Q101-compliant sourcing.

Supply support for SFAF1601G 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 automotive, industrial, and consumer markets since 1979.

The SFAF1601G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency, high-reliability power conversion where low V_F, fast t_rr, and automotive-grade robustness are mandatory.

FAQ

What is the maximum junction temperature rating for SFAF1601G?

The SFAF1601G has a maximum junction temperature (T_JMAX) of +150°C, verified per absolute maximum ratings in the official datasheet. This allows reliable operation in under-hood automotive environments and sealed industrial enclosures. Derating curves confirm sustained 16A conduction is feasible up to 125°C case temperature when mounted on adequate copper area. The SFAF1601G must not exceed this limit during transient or steady-state conditions.

Is SFAF1601G AEC-Q101 qualified?

The base SFAF1601G is not AEC-Q101 qualified; however, the variant SFAF1601GH is fully AEC-Q101 qualified per JESD22-A108 stress testing. Both share identical electrical parameters and package, differing only in qualification status and part marking. For automotive applications requiring qualification evidence, SFAF1601GH must be specified-SFAF1601G remains suitable for industrial and commercial use.

What is the reverse recovery time (t_rr) of SFAF1601G and how is it measured?

The SFAF1601G has a reverse recovery time (t_rr) of 35 ns maximum, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standards. This value applies across the full operating temperature range and reflects the device's ability to rapidly transition from conduction to blocking state-critical for minimizing switching losses in high-frequency converters. The SFAF1601G achieves this via optimized carrier lifetime control in its glass-passivated epitaxial structure.

Does SFAF1601G have UL recognition and what does that cover?

Yes, the SFAF1601G is UL Recognized under File #E-326243. This covers flammability (UL 94V-0), comparative tracking index (CTI), and dielectric withstand voltage-validating its suitability for end-equipment safety certifications including UL/CSA 62368-1. The recognition applies to the ITO-220AC package construction and molding compound, not just the silicon die. SFAF1601G meets these requirements without derating.

What is the forward voltage (V_F) of SFAF1601G at rated current and temperature?

The SFAF1601G exhibits a typical forward voltage (V_F) of 0.975 V at I_F = 16 A and T_J = 25°C, with no maximum specified-only a typical value provided in the datasheet's electrical specifications table. At elevated junction temperatures (e.g., 100°C), V_F decreases slightly due to negative temperature coefficient of silicon diodes. This low V_F directly reduces conduction losses in high-current power stages using the SFAF1601G.

SFAF1601G 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):: 50 V

Current - Average Rectified (Io):: 16A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 16 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 50 V

Capacitance @ Vr, F:: 130pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AC

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

SFAF1601G FAQ

1.How can I place an order for SFAF1601G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFAF1601G 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 SFAF1601G reliable?

The price and inventory of SFAF1601G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFAF1601G is usually 5 days.

3.What payment methods are accepted for SFAF1601G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFAF1601G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFAF1601G?

SFAF1601G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFAF1601G 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 SFAF1601G?

For technical support, including SFAF1601G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFAF1601G requirements.

6.How does Aetrix verify that SFAF1601G is sourced from the original manufacturer or authorized distributors?

All SFAF1601G 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 SFAF1601G meets industry standards.

7.What is the process for return or replacement of SFAF1601G?

All SFAF1601G units undergo pre-shipment inspection (PSI). If there is an issue with SFAF1601G, 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 SFAF1601G part is unused and in its original packaging.

Return procedure for SFAF1601G:

1.Submit a request within 90 days.

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

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