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

Taiwan Semiconductor Corporation SF1608G

Name: SF1608G
Brand: Taiwan Semiconductor Corporation
SKU: SF1608G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF1608G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: TO-220-3

Datasheet:: SF1608G.pdf

Description:: DIODE GEN PURP 600V 16A TO220AB

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Product details

Overview

SF1608G from Taiwan Semiconductor is a 16A, 600V super fast rectifier diode in TO-220AB package with dual-die configuration, 1.7V forward voltage at 8A/25°C, 35ns reverse recovery time, and 125A surge capability - used in high-efficiency DC-DC converters and switching inverters requiring high-voltage blocking and fast switching.

For engineers reviewing the SF1608G datasheet, SF1608G pinout, SF1608G application, or SF1608G equivalent, key selection criteria include V_RRM = 600V, I_F = 16A, t_rr = 35ns, R_θJC = 1.5°C/W, and AEC-Q101 qualification availability (SF1608GH variant), critical for automotive-grade power conversion designs.

Technical Context

The SF1608G implements a super fast recovery structure optimized for high-frequency switching applications, achieving 35ns reverse recovery time under IF = 0.5A / IR = 1.0A / Irr = 0.25A test conditions. Its dual-die TO-220AB construction supports parallel conduction paths while maintaining thermal resistance of 1.5°C/W junction-to-case.

Rated for 600V repetitive peak reverse voltage and 125A non-repetitive surge current (8.3ms half-sine), the device operates across -55°C to +150°C junction temperature range with 10µA max reverse leakage at 25°C and 400µA at 100°C - enabling robust operation in thermally demanding industrial and automotive environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - blocks up to 600V DC or peak AC reverse voltage without breakdown
I_F	16 A - continuous average forward current rating at case temperature ≤ 100°C
t_rr	35 ns - ultra-fast recovery enables efficient operation in ≥100 kHz SMPS topologies
V_F	1.7 V @ 8A, 25°C - low conduction loss improves system efficiency in high-current paths
R_θJC	1.5 °C/W - enables effective heat transfer to heatsink for thermal management in compact layouts
I_FSM	125 A - withstands short-duration inrush/surge currents common during power-up or fault events
C_J	60 pF @ 1MHz, 4V - reduced junction capacitance minimizes switching losses and EMI generation

Pinout & Package

TO-220AB package with center-tab cathode configuration: Pin 1 (Anode), Pin 2 (Cathode tab, electrically connected to Pin 3), Pin 3 (Anode). Mounting hole centered on tab; polarity marked on device surface.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Lead)	Anode	Primary anode connection for forward current entry; isolated from tab
Pin 2 / Pin 3 (Tab)	Cathode	Common cathode terminal with mechanical mounting interface; electrically tied to Pin 3
Pin 3 (Lead)	Anode	Second anode lead for dual-die configuration; enables symmetrical PCB layout

Key Features

Feature	Design Value
Super fast recovery (t_rr)	35 ns enables high-frequency switching (>100 kHz) with minimal switching loss and EMI
Dual-die configuration	Two independent 8A diodes in one TO-220AB package - reduces board space vs. discrete solutions
Low forward voltage (V_F)	1.7 V @ 8A/25°C lowers conduction loss and thermal stress in high-current paths
AEC-Q101 qualification option	SF1608GH variant meets automotive reliability standards for under-hood power modules
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU RoHS - suitable for environmentally regulated industrial products

Applications

DC-DC Converters	Switching Inverters
Use Scenario: High-efficiency isolated buck-boost converter in telecom power supplies operating at 200 kHz. IC Role / Device Role / Timing Role: Output rectifier handling 16A continuous current with 600V blocking requirement. Use Value: 35ns t_rr and 1.7V V_F reduce switching and conduction losses, improving overall efficiency by ≥1.2% vs. standard fast rectifiers.	Use Scenario: Motor drive inverter stage converting 400V DC bus to variable-frequency AC for HVAC compressors. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs, clamping inductive kickback during turn-off. Use Value: 125A I_FSM withstands motor startup surges; 600V V_RRM provides safety margin above 400V bus.
Automotive Onboard Chargers	Industrial UPS Systems
Use Scenario: Bidirectional AC/DC stage in EV onboard charger rated for 6.6 kW output. IC Role / Device Role / Timing Role: Secondary-side synchronous rectification replacement in PFC + LLC stages. Use Value: Dual-die TO-220AB allows compact layout; AEC-Q101-qualified SF1608GH variant supports automotive qualification requirements.	Use Scenario: Line-interactive UPS with boost/buck topology regulating 230V AC input under brownout/surge conditions. IC Role / Device Role / Timing Role: Input bridge rectifier handling 16A RMS current with transient overvoltage protection. Use Value: 1.5°C/W R_θJC enables reliable thermal performance on standard heatsinks without forced air cooling.

DC-DC Converters

Switching Inverters

Use Scenario: High-efficiency isolated buck-boost converter in telecom power supplies operating at 200 kHz.

IC Role / Device Role / Timing Role: Output rectifier handling 16A continuous current with 600V blocking requirement.

Use Value: 35ns t_rr and 1.7V V_F reduce switching and conduction losses, improving overall efficiency by ≥1.2% vs. standard fast rectifiers.

Use Scenario: Motor drive inverter stage converting 400V DC bus to variable-frequency AC for HVAC compressors.

IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs, clamping inductive kickback during turn-off.

Use Value: 125A I_FSM withstands motor startup surges; 600V V_RRM provides safety margin above 400V bus.

Automotive Onboard Chargers

Industrial UPS Systems

Use Scenario: Bidirectional AC/DC stage in EV onboard charger rated for 6.6 kW output.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectification replacement in PFC + LLC stages.

Use Value: Dual-die TO-220AB allows compact layout; AEC-Q101-qualified SF1608GH variant supports automotive qualification requirements.

Use Scenario: Line-interactive UPS with boost/buck topology regulating 230V AC input under brownout/surge conditions.

IC Role / Device Role / Timing Role: Input bridge rectifier handling 16A RMS current with transient overvoltage protection.

Use Value: 1.5°C/W R_θJC enables reliable thermal performance on standard heatsinks without forced air cooling.

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 = 600V, I_F = 16A, t_rr = 35ns, but single-die TO-220AC; R_θJC = 1.8°C/W	No dual-anode configuration; requires two devices for same current sharing as SF1608G	Select when single-diode layout suffices and lower thermal resistance is not required
IXYS MUR1660CT	V_RRM = 600V, I_F = 16A, t_rr = 35ns, dual-die TO-220AB, but V_F = 1.85V @ 8A	Higher forward drop increases conduction loss; no AEC-Q101 option available	Select when dual-die layout is mandatory but automotive qualification is not required

Compared with STTH1606D and IXYS MUR1660CT, the SF1608G offers superior thermal performance (1.5°C/W vs. 1.8°C/W), dual-anode flexibility for balanced current sharing, and AEC-Q101-qualified variant - making it optimal for space-constrained, high-reliability automotive and industrial power converters.

Availability

SF1608G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling applications requiring stable component supply, high-voltage blocking, and fast recovery performance.

Supply support for SF1608G 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 semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and automotive markets since 1979.

The SF1608G belongs to TSC's SF-series super fast rectifier family, engineered specifically for high-frequency, high-efficiency power conversion systems where low V_F, fast t_rr, and rugged surge capability are essential.

FAQ

What is the maximum junction temperature rating for the SF1608G?

The SF1608G has a maximum junction temperature (T_J) rating of +150°C, with operational range from -55°C to +150°C. This rating is validated under specified thermal conditions including R_θJC = 1.5°C/W and proper heatsinking. Derating curves in the official datasheet define safe operating current limits at elevated case temperatures - critical for ensuring long-term reliability in SF1608G-based power designs.

Does the SF1608G have AEC-Q101 qualification?

The SF1608G itself is not AEC-Q101 qualified, but its variant SF1608GH is explicitly listed as AEC-Q101 qualified in the ordering information. The "H" suffix denotes automotive-grade qualification per JESD22-A108 and JESD22-A114 standards. Engineers selecting SF1608G for automotive applications must specify SF1608GH to meet vehicle-level reliability requirements - SF1608G remains suitable for industrial use.

What is the forward voltage specification for the SF1608G at 16A?

The SF1608G datasheet specifies forward voltage only at 8A (1.7V typ @ 25°C); no V_F value is published at 16A. At higher currents, V_F increases nonlinearly due to series resistance and thermal effects. Designers should use the 8A point with derating guidance from the forward characteristics curve (Fig.4) and apply thermal modeling to estimate actual V_F under full-load SF1608G operating conditions.

How does the dual-die configuration of the SF1608G affect PCB layout?

The SF1608G's dual-die TO-220AB package features two anode leads (Pin 1 and Pin 3) sharing a common cathode tab (Pin 2). This allows symmetrical current splitting across parallel traces, reducing localized heating and improving thermal distribution. Unlike single-die alternatives, the SF1608G eliminates need for external paralleling components - simplifying layout while maintaining low-inductance paths essential for high-frequency SF1608G switching performance.

What is the reverse recovery charge (Q_rr) for the SF1608G?

The SF1608G datasheet does not specify reverse recovery charge (Q_rr) - only reverse recovery time (t_rr = 35ns) is provided under defined test conditions (IF = 0.5A, IR = 1.0A, Irr = 0.25A). Q_rr depends on circuit conditions and cannot be derived solely from t_rr. For accurate loss calculation in hard-switched topologies, engineers should measure Q_rr in-system or consult TSC application notes referencing SF1608G characterization data under representative operating waveforms.

SF1608G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3

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 @ 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:: Through Hole

Supplier Device Package:: TO-220AB

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

SF1608G FAQ

1.How can I place an order for SF1608G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF1608G 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 SF1608G reliable?

The price and inventory of SF1608G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF1608G is usually 5 days.

3.What payment methods are accepted for SF1608G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF1608G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF1608G?

SF1608G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF1608G 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 SF1608G?

For technical support, including SF1608G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF1608G requirements.

6.How does Aetrix verify that SF1608G is sourced from the original manufacturer or authorized distributors?

All SF1608G 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 SF1608G meets industry standards.

7.What is the process for return or replacement of SF1608G?

All SF1608G units undergo pre-shipment inspection (PSI). If there is an issue with SF1608G, 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 SF1608G part is unused and in its original packaging.

Return procedure for SF1608G:

1.Submit a request within 90 days.

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

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