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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Taiwan Semiconductor Corporation SFS1601G

Name: SFS1601G
Brand: Taiwan Semiconductor Corporation
SKU: SFS1601G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFS1601G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: SFS1601G.pdf

Description:: DIODE ARRAY GP 50V 16A TO263AB

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Product details

Overview

SFS1601G from Taiwan Semiconductor is a 16A, 50V super fast surface-mount rectifier diode in TO-263AB (D2PAK) package, featuring 0.975V forward voltage at 8A/25°C, 125A surge capability, and 35ns reverse recovery time - deployed in DC-DC converters and switching-mode power supplies.

For engineers reviewing the SFS1601G datasheet, SFS1601G pinout, SFS1601G application, or SFS1601G equivalent, key selection criteria include V_RRM = 50V, I_F = 16A, t_rr = 35ns, R_θJC = 2.5°C/W, and TO-263AB thermal performance for high-efficiency SMPS freewheeling paths.

Technical Context

The SFS1601G is a single-die, super-fast recovery rectifier optimized for high-frequency switching applications. Its 35ns reverse recovery time and low 0.975V forward voltage at 8A reduce conduction and switching losses in synchronous and non-synchronous buck converters.

Designed with dual-die configuration capability (per family spec), the SFS1601G uses a single silicon die in TO-263AB package with matte tin-plated leads, J-STD-002 solderability, and JESD201 Class 2 whisker resistance - supporting automated placement and reflow compatibility.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - maximum repetitive reverse voltage; defines safe blocking range in 12–24V input DC-DC stages
I_F	16 A - average forward current; supports continuous output currents up to 16A with proper heatsinking
I_FSM	125 A - non-repetitive surge rating; handles startup inrush and transient overloads in SMPS
t_rr	35 ns - reverse recovery time; enables operation up to ~3 MHz switching frequencies with low switching loss
V_F	0.975 V @ 8A, 25°C - low conduction drop; reduces power dissipation vs. standard fast rectifiers
R_θJC	2.5 °C/W - junction-to-case thermal resistance; allows ~50W power dissipation with 125°C T_J max and 75°C case temp
C_J	80 pF @ 1MHz, 4V - junction capacitance; impacts EMI and snubber design in high-dV/dt environments

Pinout & Package

TO-263AB (D2PAK) surface-mount package with 3 terminals: Anode, Cathode, and exposed thermal pad (connected to cathode internally). Molded compound meets UL 94V-0; polarity marked on top surface.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Input current entry	Connects to switch node or transformer secondary; must handle full 16A forward current and 125A surge
Cathode (Lead 2)	Output current exit	Connected to output rail or ground return; electrically tied to exposed thermal pad for heat transfer
Exposed Pad	Thermal & electrical cathode extension	Requires soldered copper pour for thermal management; not isolated - must be routed as cathode net

Key Features

Feature	Design Value
Super-fast recovery (t_rr = 35 ns)	Enables high-frequency (>500 kHz) SMPS designs with reduced switching loss and EMI vs. standard fast rectifiers
Low V_F (0.975 V @ 8A)	Lowers conduction loss by ~15–20% compared to 1.15V alternatives at same current, improving efficiency in 12V-output converters
TO-263AB thermal performance (R_θJC = 2.5°C/W)	Supports >50W dissipation with minimal heatsink area - critical for compact, high-power-density industrial PSUs
Moisture sensitivity level 1	Eliminates bake requirement before reflow; compatible with standard SMT assembly lines without special handling
RoHS & halogen-free compliance	Fulfills IEC 61249-2-21 and EU RoHS requirements for environmentally constrained industrial and telecom equipment

Applications

DC-DC Converter Output Stage	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated 48V-to-12V synchronous buck converters for server power supplies. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side FET off-time; clamps inductive kickback and recirculates energy. Use Value: 35ns t_rr minimizes reverse recovery charge (Q_rr), reducing cross-conduction loss and MOSFET stress in high-frequency operation.	Use Scenario: Bidirectional freewheeling path in three-phase motor drive inverters operating at 10–20 kHz PWM. IC Role / Device Role / Timing Role: Passive clamp diode across IGBTs; conducts during dead-time and inductive flyback events. Use Value: 125A I_FSM withstands motor stall surges; 2.5°C/W R_θJC enables direct PCB copper thermal coupling without external heatsinks.
AC-DC PFC Boost Diode	Industrial UPS Hold-up Rectification
Use Scenario: Output rectifier in continuous-conduction-mode (CCM) boost PFC stage feeding 380V DC bus from 230V AC input. IC Role / Device Role / Timing Role: High-voltage, high-current unidirectional conduction path after boost inductor; blocks reverse line voltage. Use Value: 50V V_RRM is insufficient here - this application applies only to higher-voltage variants (e.g., SFS1605G+); SFS1601G is excluded from PFC use.	Use Scenario: Input rectification in 24V/48V industrial UPS systems where battery backup maintains load during AC outage. IC Role / Device Role / Timing Role: Primary AC-input bridge replacement or hold-up stage rectifier feeding bulk capacitor bank. Use Value: 16A I_F and 125A I_FSM support sustained 20A loads with 200% surge tolerance during generator switchover transients.

DC-DC Converter Output Stage

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated 48V-to-12V synchronous buck converters for server power supplies.

IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side FET off-time; clamps inductive kickback and recirculates energy.

Use Value: 35ns t_rr minimizes reverse recovery charge (Q_rr), reducing cross-conduction loss and MOSFET stress in high-frequency operation.

Use Scenario: Bidirectional freewheeling path in three-phase motor drive inverters operating at 10–20 kHz PWM.

IC Role / Device Role / Timing Role: Passive clamp diode across IGBTs; conducts during dead-time and inductive flyback events.

Use Value: 125A I_FSM withstands motor stall surges; 2.5°C/W R_θJC enables direct PCB copper thermal coupling without external heatsinks.

AC-DC PFC Boost Diode

Industrial UPS Hold-up Rectification

Use Scenario: Output rectifier in continuous-conduction-mode (CCM) boost PFC stage feeding 380V DC bus from 230V AC input.

IC Role / Device Role / Timing Role: High-voltage, high-current unidirectional conduction path after boost inductor; blocks reverse line voltage.

Use Value: 50V V_RRM is insufficient here - this application applies only to higher-voltage variants (e.g., SFS1605G+); SFS1601G is excluded from PFC use.

Use Scenario: Input rectification in 24V/48V industrial UPS systems where battery backup maintains load during AC outage.

IC Role / Device Role / Timing Role: Primary AC-input bridge replacement or hold-up stage rectifier feeding bulk capacitor bank.

Use Value: 16A I_F and 125A I_FSM support sustained 20A loads with 200% surge tolerance during generator switchover transients.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-16EWH05FN-M3	Same 50V V_RRM, 16A I_F, but TO-252AA (DPAK); t_rr = 30ns, V_F = 0.92V @ 8A	Lower thermal resistance not achievable - R_θJC = 4.0°C/W limits power density vs. SFS1601G's 2.5°C/W	Select when board space is constrained and thermal budget allows higher junction rise
ON Semiconductor MUR1620CT	200V V_RRM, dual common-cathode configuration; t_rr = 35ns, V_F = 0.97V @ 8A	Not a drop-in replacement - different voltage rating and dual-diode topology requires circuit redesign	Choose only when 200V blocking and dual-channel layout are required; not suitable for 50V-only designs

Compared with VS-16EWH05FN-M3, SFS1601G delivers superior thermal performance in space-constrained high-power layouts; versus MUR1620CT, it offers precise 50V optimization with single-diode simplicity and lower system-level BOM count.

Availability

SFS1601G is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and industrial UPS systems requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for SFS1601G 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.

The SFS1601G belongs to TSC's Super Fast Surface Mount Rectifier product line, engineered specifically for high-efficiency, high-frequency switching power conversion in industrial and telecom infrastructure.

FAQ

What is the maximum junction temperature rating for the SFS1601G?

The SFS1601G has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating enables reliable use in enclosed industrial enclosures and high-ambient-temperature environments when paired with appropriate PCB copper area per the TO-263AB thermal pad layout guidelines. Derating curves in the official SFS1601G datasheet define usable current vs. case temperature.

Is the SFS1601G RoHS and halogen-free compliant?

Yes, the SFS1601G is fully RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants, and terminal plating uses matte tin without lead, antimony, or phosphorus-based alloys - meeting global environmental compliance requirements for industrial and telecom end equipment.

Does the SFS1601G have a built-in thermal pad, and how should it be connected?

Yes, the SFS1601G in TO-263AB package features an exposed thermal pad that is internally connected to the cathode. It must be soldered to a dedicated PCB copper pour tied to the cathode net - not left floating or grounded separately. Minimum recommended pad area is 100 mm² with ≥4 thermal vias (0.3mm diameter) to inner ground plane for optimal R_θJA performance.

What is the reverse recovery time test condition for the SFS1601G?

The SFS1601G reverse recovery time (t_rr = 35 ns) is measured under standardized conditions: I_F = 0.5 A, I_R = 1.0 A, I_RR = 0.25 A, with specified di/dt and voltage ramp rates per JEDEC standards. This value is representative of typical performance at 25°C ambient and confirms suitability for switching frequencies up to 1–2 MHz in well-designed layouts.

Can the SFS1601G replace the SFS1602G in a 100V design?

No, the SFS1601G is rated for 50V V_RRM and must not be substituted for the SFS1602G (100V) in circuits where reverse voltage exceeds 50V. Exceeding V_RRM risks catastrophic avalanche failure. The "x" digit in SFS16xG explicitly denotes voltage grade - SFS1601G and SFS1602G are not interchangeable without redesigning voltage margin and safety isolation.

SFS1601G 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

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io) (per Diode):: 16A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 8 A

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

Reverse Recovery Time (trr):: 35 ns

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-263AB (D2PAK)

SFS1601G FAQ

1.How can I place an order for SFS1601G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFS1601G 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 SFS1601G reliable?

The price and inventory of SFS1601G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFS1601G is usually 5 days.

3.What payment methods are accepted for SFS1601G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFS1601G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFS1601G?

SFS1601G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFS1601G 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 SFS1601G?

For technical support, including SFS1601G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFS1601G requirements.

6.How does Aetrix verify that SFS1601G is sourced from the original manufacturer or authorized distributors?

All SFS1601G 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 SFS1601G meets industry standards.

7.What is the process for return or replacement of SFS1601G?

All SFS1601G units undergo pre-shipment inspection (PSI). If there is an issue with SFS1601G, 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 SFS1601G part is unused and in its original packaging.

Return procedure for SFS1601G:

1.Submit a request within 90 days.

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

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