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

Taiwan Semiconductor Corporation SFF2002G

Name: SFF2002G
Brand: Taiwan Semiconductor Corporation
SKU: SFF2002G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFF2002G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-220-3 Full Pack, Isolated Tab

Datasheet:: SFF2002G.pdf

Description:: DIODE ARRAY GP 100V 20A ITO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:9,838

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Product details

Overview

SFF2002G from Taiwan Semiconductor is a 20A, 100V repetitive peak reverse voltage super fast rectifier diode in ITO-220AB package with dual-die configuration, 35ns reverse recovery time, and 0.975V forward voltage at 10A/25°C - used in switching-mode DC-DC converters requiring low-loss freewheeling paths.

For engineers reviewing the SFF2002G datasheet, SFF2002G pinout, SFF2002G application, or SFF2002G equivalent, key selection criteria include V_RRM=100V, I_F=20A, t_rr=35ns, R_θJC=2.5°C/W, and AEC-Q101 qualification availability (SFF2002GH variant).

Technical Context

The SFF2002G integrates two independent super fast rectifier dies in a single ITO-220AB thermally enhanced package, enabling high-current freewheeling or dual-phase rectification without paralleling discrete devices. Its 35ns reverse recovery time and 0.975V forward voltage at 10A directly reduce switching losses in 100kHz–500kHz SMPS topologies.

Thermal performance is defined by a junction-to-case resistance of 2.5°C/W, supporting continuous 20A conduction when mounted on ≥25 cm² copper area with thermal interface. The device operates across –55°C to +150°C junction temperature range and meets UL 94V-0 flammability and JESD201 Class 2 whisker requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - maximum non-repetitive reverse blocking voltage per diode; sets upper limit for flyback snubber or boost output stage voltage stress
I_F	20 A - average forward current rating at case temperature ≤75°C; defines continuous conduction capability in TO-220 footprint
t_rr	35 ns - measured at I_F=0.5A, I_R=1.0A, I_rr=0.25A; enables efficient operation in high-frequency switchers without excessive ringing
V_F	0.975 V @ 10A, 25°C - forward voltage drop per diode; determines conduction loss and thermal load at nominal load current
R_θJC	2.5 °C/W - thermal resistance from junction to case; allows accurate heatsink sizing when mounting to chassis or PCB copper
I_FSM	150 A - non-repetitive surge current (8.3ms half-sine); supports inrush and fault-current handling in power supply startup
C_J	90 pF @ 1MHz, V_R=4V - junction capacitance per diode; impacts high-frequency switching noise and EMI filter design

Pinout & Package

Package: ITO-220AB - thermally optimized 3-terminal through-hole package with isolated collector tab, matte tin-plated leads compliant with J-STD-002, and UL 94V-0 molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode 1	Input terminal for first diode	Connects to switching node in half-bridge freewheel path or input side of dual-output rectifier
Cathode (Common)	Shared cathode connection	Electrically ties both diodes' cathodes; serves as output/common return in dual-diode configuration
Anode 2	Input terminal for second diode	Enables independent control or phase-split rectification; requires separate gate drive or topology routing

Key Features

Feature	Design Value
Dual-die super fast rectifier	Two independent 20A/100V diodes in one ITO-220AB package - reduces board space vs. two discrete TO-220 devices and improves thermal coupling
35 ns reverse recovery time	Minimizes turn-off losses and voltage overshoot in 200–500 kHz DC-DC converters, reducing need for snubbers
0.975 V forward voltage @ 10A	Lowers conduction loss by ~15% vs. standard FRDs with V_F >1.1V, improving efficiency in 12V–48V output rails
2.5 °C/W junction-to-case thermal resistance	Enables 20A continuous operation with ≤40°C temperature rise above heatsink at 25 cm² copper area
AEC-Q101 qualified option (SFF2002GH)	Validated for automotive under-hood applications including engine control modules and ADAS power supplies

Applications

DC-DC Converter Freewheeling	Switching Inverter Output Stage
Use Scenario: High-efficiency 48V-to-12V buck converter in telecom power shelf with 300kHz switching frequency. IC Role / Device Role / Timing Role: Freewheeling diode conducting during low-side FET off-time; handles 20A peak inductive current. Use Value: 35ns t_rr prevents reverse recovery tail current, reducing MOSFET turn-on loss and EMI generation.	Use Scenario: Single-phase motor drive inverter output stage delivering 1.5kW at 20kHz PWM. IC Role / Device Role / Timing Role: Anti-parallel diode across IGBTs providing reactive current path during commutation. Use Value: Dual-die structure allows independent anode routing to each IGBT, eliminating shared trace inductance and cross-conduction risk.
Industrial SMPS Input Rectification	Automotive On-Board Charger (OBC) Auxiliary Supply
Use Scenario: 3.3kW industrial AC-DC front-end using interleaved PFC followed by LLC resonant stage. IC Role / Device Role / Timing Role: Output rectifier in secondary synchronous rectification stage, operating at 300–400kHz. Use Value: 0.975V V_F at 10A lowers conduction loss by 2.1W per diode vs. 1.15V alternative, easing thermal management.	Use Scenario: 1.2kW OBC auxiliary 12V supply powering MCU, CAN transceivers, and sensors. IC Role / Device Role / Timing Role: Primary-side clamp diode in flyback converter meeting AEC-Q101 reliability requirements. Use Value: SFF2002GH variant provides validated automotive qualification, including temperature cycling and HTRB testing per AEC-Q101 Rev D.

DC-DC Converter Freewheeling

Switching Inverter Output Stage

Use Scenario: High-efficiency 48V-to-12V buck converter in telecom power shelf with 300kHz switching frequency.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during low-side FET off-time; handles 20A peak inductive current.

Use Value: 35ns t_rr prevents reverse recovery tail current, reducing MOSFET turn-on loss and EMI generation.

Use Scenario: Single-phase motor drive inverter output stage delivering 1.5kW at 20kHz PWM.

IC Role / Device Role / Timing Role: Anti-parallel diode across IGBTs providing reactive current path during commutation.

Use Value: Dual-die structure allows independent anode routing to each IGBT, eliminating shared trace inductance and cross-conduction risk.

Industrial SMPS Input Rectification

Automotive On-Board Charger (OBC) Auxiliary Supply

Use Scenario: 3.3kW industrial AC-DC front-end using interleaved PFC followed by LLC resonant stage.

IC Role / Device Role / Timing Role: Output rectifier in secondary synchronous rectification stage, operating at 300–400kHz.

Use Value: 0.975V V_F at 10A lowers conduction loss by 2.1W per diode vs. 1.15V alternative, easing thermal management.

Use Scenario: 1.2kW OBC auxiliary 12V supply powering MCU, CAN transceivers, and sensors.

IC Role / Device Role / Timing Role: Primary-side clamp diode in flyback converter meeting AEC-Q101 reliability requirements.

Use Value: SFF2002GH variant provides validated automotive qualification, including temperature cycling and HTRB testing per AEC-Q101 Rev D.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2002CT	Single-die dual common-cathode TO-220AC package; V_F=0.95V @ 10A but t_rr=50ns; no AEC-Q101 option	Higher reverse recovery loss in >250kHz designs; unsuitable for automotive qualified systems	Prefer when lowest V_F dominates and t_rr margin exists; verify layout for higher EMI
ON Semi MUR2020CT	200V V_RRM, t_rr=35ns, V_F=1.15V @ 10A; TO-220AC package with non-isolated tab	Higher V_F increases conduction loss by ~1.8W at 10A; tab not electrically isolated	Select only if 200V blocking is required and thermal budget permits higher V_F; verify isolation requirements

Compared with STTH2002CT and MUR2020CT, the SFF2002G delivers optimal balance of 100V blocking, 35ns t_rr, 0.975V V_F, and ITO-220AB's isolated tab - making it preferred for space-constrained, high-frequency, and thermally demanding industrial or automotive auxiliary supplies.

Availability

SFF2002G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and automotive auxiliary power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for SFF2002G 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 1992.

The SFF2002G belongs to TSC's Super Fast Rectifier family designed specifically for high-frequency, high-efficiency power conversion in compact form factors - emphasizing low V_F, fast t_rr, and robust thermal performance in ITO-220AB.

FAQ

What is the maximum repetitive peak reverse voltage rating for SFF2002G?

The SFF2002G has a maximum repetitive peak reverse voltage (V_RRM) of 100 V, as specified in the Absolute Maximum Ratings table. This value is fixed for the SFF2002G variant and differs from other members of the SFF2001G–SFF2008G family, which range from 50 V to 600 V. Operation above 100 V risks irreversible breakdown.

Does SFF2002G have AEC-Q101 qualification?

The base SFF2002G is not AEC-Q101 qualified; however, the SFF2002GH variant is explicitly listed as AEC-Q101 qualified in the Ordering Information section. Engineers requiring automotive-grade reliability must specify SFF2002GH and confirm qualification status via Taiwan Semiconductor's official documentation or authorized distributor records.

What is the forward voltage of SFF2002G at 20A and 125°C junction temperature?

The datasheet specifies V_F = 0.975 V only at I_F = 10 A and T_J = 25°C. At 20 A and 125°C, V_F increases due to positive temperature coefficient and current scaling - typical curves (Fig.4) show ~1.25 V at 20 A and 125°C. Designers should use derating curves and thermal modeling to confirm actual V_F under operating conditions for the SFF2002G.

Is the cathode terminal of SFF2002G internally connected between both diodes?

Yes, the SFF2002G uses a common-cathode dual-die configuration: Anode 1 and Anode 2 are electrically isolated, while their cathodes are bonded together internally and brought out as a single cathode terminal. This configuration is confirmed by the marking diagram, mechanical outline, and "Configuration: Dual dies" statement in the KEY PARAMETERS section.

What is the recommended mounting torque for SFF2002G in ITO-220AB package?

The recommended maximum mounting torque for the SFF2002G in ITO-220AB package is 0.56 N·m, as stated in the MECHANICAL DATA section. Exceeding this torque may damage the internal leadframe or compromise hermeticity. Use calibrated torque screwdrivers and follow Taiwan Semiconductor's mounting guidelines to ensure reliable thermal contact and mechanical integrity for the SFF2002G.

SFF2002G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3 Full Pack, Isolated Tab

Packaging:: Tube

Product Status:: Active

Diode Configuration:: 1 Pair Common Cathode

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 V

Current - Average Rectified (Io) (per Diode):: 20A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 10 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 100 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: ITO-220AB

SFF2002G FAQ

1.How can I place an order for SFF2002G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFF2002G 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 SFF2002G reliable?

The price and inventory of SFF2002G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFF2002G is usually 5 days.

3.What payment methods are accepted for SFF2002G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFF2002G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFF2002G?

SFF2002G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFF2002G 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 SFF2002G?

For technical support, including SFF2002G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFF2002G requirements.

6.How does Aetrix verify that SFF2002G is sourced from the original manufacturer or authorized distributors?

All SFF2002G 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 SFF2002G meets industry standards.

7.What is the process for return or replacement of SFF2002G?

All SFF2002G units undergo pre-shipment inspection (PSI). If there is an issue with SFF2002G, 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 SFF2002G part is unused and in its original packaging.

Return procedure for SFF2002G:

1.Submit a request within 90 days.

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

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