Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation SF802G

Name: SF802G
Brand: Taiwan Semiconductor Corporation
SKU: SF802G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SF802G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Diode Arrays

Package:: TO-220-3

Datasheet:: SF802G.pdf

Description:: DIODE ARRAY GP 100V 8A TO-220AB

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,470

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SF802G from Taiwan Semiconductor is an 8A, 100V super fast rectifier diode in TO-220AB package, featuring 35ns reverse recovery time, 0.975V forward voltage at 4A/25°C, and 125A surge current capability. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.

For engineers reviewing the SF802G datasheet, SF802G pinout, SF802G application, or SF802G equivalent, key selection criteria include V_RRM = 100 V, I_F = 8 A, t_rr = 35 ns, R_θJC = 3 °C/W, and TO-220AB thermal/mechanical compatibility with heatsink mounting.

Technical Context

The SF802G integrates dual die configuration in a single TO-220AB package, enabling high-current handling while maintaining low conduction loss. Its super fast recovery (t_rr ≤ 35 ns) and low V_F (0.975 V @ 4 A, 25°C) reduce switching losses in DC–DC converters operating above 50 kHz.

Thermally, it delivers R_θJC = 3 °C/W and supports continuous operation up to T_J = 150°C. The device meets JESD201 Class 2 whisker resistance and uses matte tin-plated leads compliant with J-STD-002 solderability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage; defines safe blocking capability in 100 V bus applications
I_F	8 A - Continuous forward current rating; supports sustained 8 A output rectification without derating at T_C ≤ 100°C
I_FSM	125 A - Non-repetitive surge current (8.3 ms half-sine); withstands inrush and fault transients in SMPS
t_rr	35 ns - Reverse recovery time; enables efficient operation in 100–500 kHz switching topologies
V_F	0.975 V @ 4 A, 25°C - Low forward drop reduces conduction loss and improves system efficiency
R_θJC	3 °C/W - Junction-to-case thermal resistance; allows direct heatsink mounting for thermal management
C_J	70 pF @ 1 MHz, 4 V - Junction capacitance impacts high-frequency noise and EMI behavior in snubberless designs

Pinout & Package

Package: TO-220AB - Insulated case with center tab (cathode), two outer leads (anode and cathode). Mounting torque ≤ 0.56 N·m. Polarity marked on device body.

Pin/Terminal	Circuit Role	Design Meaning
Tab (center)	Cathode	Electrically connected to cathode; thermally conductive path to heatsink; requires insulating washer if mounted to grounded chassis
Lead 1 (left)	Anode	Primary anode connection; carries full forward current into device
Lead 2 (right)	Cathode	Secondary cathode terminal; used for Kelvin sensing or low-inductance return path in high-dI/dt layouts

Key Features

Feature	Design Value
Super fast recovery (t_rr)	35 ns - Minimizes switching loss and EMI generation in high-frequency converters
Low forward voltage (V_F)	0.975 V @ 4 A - Reduces conduction loss by ~15% vs. standard fast rectifiers at same current
Dual-die construction	Single TO-220AB package contains two independent dies - Enables redundancy or parallel operation without external paralleling
AEC-Q101 qualification option	Available as SF802GH - Meets automotive-grade reliability requirements including temperature cycling and HTRB
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS - Supports environmentally compliant industrial and automotive manufacturing

Applications

DC–DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification in isolated 48 V–12 V buck-derived DC–DC modules for telecom and server power. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time; handles 8 A continuous output current. Use Value: 35 ns t_rr prevents reverse recovery shoot-through in synchronous topologies; 0.975 V V_F improves full-load efficiency by ≥0.8% over standard FRDs.	Use Scenario: Output stage rectification in 1–3 kW solar microinverters with high-frequency transformer isolation. IC Role / Device Role / Timing Role: Unidirectional current path converting high-frequency AC from transformer secondary to DC bus. Use Value: Dual-die layout lowers thermal resistance (R_θJC = 3 °C/W), enabling compact heatsinking; 125 A I_FSM tolerates grid-tie transient surges.
Freewheeling Diodes	Industrial SMPS
Use Scenario: Inductive load protection in 24 V/48 V motor drive gate driver stages and solenoid drivers. IC Role / Device Role / Timing Role: Clamp diode across inductive coil; conducts flyback energy during MOSFET turn-off. Use Value: 35 ns t_rr ensures rapid turn-off, minimizing voltage overshoot; TO-220AB mechanical robustness withstands vibration in factory automation.	Use Scenario: Primary-side input rectification and PFC boost diode in 500 W industrial programmable logic controller (PLC) power supplies. IC Role / Device Role / Timing Role: High-current, high-reliability rectifier in bridge or boost configurations operating at 100 kHz. Use Value: 150°C T_JMAX and JESD201 Class 2 whisker resistance ensure long-term stability in sealed enclosures with limited airflow.

DC–DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification in isolated 48 V–12 V buck-derived DC–DC modules for telecom and server power.

IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during low-side switch off-time; handles 8 A continuous output current.

Use Value: 35 ns t_rr prevents reverse recovery shoot-through in synchronous topologies; 0.975 V V_F improves full-load efficiency by ≥0.8% over standard FRDs.

Use Scenario: Output stage rectification in 1–3 kW solar microinverters with high-frequency transformer isolation.

IC Role / Device Role / Timing Role: Unidirectional current path converting high-frequency AC from transformer secondary to DC bus.

Use Value: Dual-die layout lowers thermal resistance (R_θJC = 3 °C/W), enabling compact heatsinking; 125 A I_FSM tolerates grid-tie transient surges.

Freewheeling Diodes

Industrial SMPS

Use Scenario: Inductive load protection in 24 V/48 V motor drive gate driver stages and solenoid drivers.

IC Role / Device Role / Timing Role: Clamp diode across inductive coil; conducts flyback energy during MOSFET turn-off.

Use Value: 35 ns t_rr ensures rapid turn-off, minimizing voltage overshoot; TO-220AB mechanical robustness withstands vibration in factory automation.

Use Scenario: Primary-side input rectification and PFC boost diode in 500 W industrial programmable logic controller (PLC) power supplies.

IC Role / Device Role / Timing Role: High-current, high-reliability rectifier in bridge or boost configurations operating at 100 kHz.

Use Value: 150°C T_JMAX and JESD201 Class 2 whisker resistance ensure long-term stability in sealed enclosures with limited airflow.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH8L06D (STMicroelectronics)	V_RRM = 600 V, t_rr = 30 ns, V_F = 1.15 V @ 8 A - Higher voltage rating, faster recovery, but higher V_F	Preferred in 400–600 V PFC stages; less optimal for 100 V output rectification due to excess voltage margin and higher conduction loss	Select when >300 V blocking or <30 ns t_rr is required; verify thermal fit for same I_F in TO-220AC package
VS-8EWH06FN-M3 (Vishay)	V_RRM = 600 V, t_rr = 32 ns, V_F = 1.05 V @ 8 A - Similar speed, slightly higher V_F, AEC-Q101 qualified as standard	Better suited for automotive under-hood DC–DC where AEC-Q101 compliance is mandatory; not cost-optimized for industrial 100 V systems	Choose for automotive-grade deployments requiring zero additional qualification; otherwise, SF802G offers lower V_F and cost advantage in non-automotive use

Compared with STTH8L06D and VS-8EWH06FN-M3, the SF802G provides the lowest forward voltage (0.975 V) at its rated 100 V V_RRM, delivering superior conduction efficiency in 100 V bus applications-without over-specifying voltage rating or paying premium for automotive qualification.

Availability

SF802G is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and industrial SMPS requiring stable component supply, consistent parametric performance, and TO-220AB mechanical compatibility.

Supply support for SF802G 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, computing, and automotive markets since 1979.

The SF801G–SF808G family was designed specifically for high-efficiency, high-reliability power conversion in space-constrained industrial and telecom power supplies-emphasizing low V_F, fast t_rr, and robust thermal performance in TO-220AB.

FAQ

What is the maximum junction temperature rating for the SF802G?

The SF802G has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version I2104. This rating enables reliable operation in enclosed industrial power supplies with ambient temperatures up to 85°C when properly heatsinked. Derating curves confirm 8 A continuous current is sustainable at case temperatures ≤100°C.

Is the SF802G pin-compatible with other devices in the SF801G–SF808G series?

Yes, all SF801G–SF808G devices share identical TO-220AB package dimensions, pinout, and terminal assignments-including center-tab cathode, left-anode, right-cathode configuration. The SF802G maintains full mechanical and thermal compatibility across the series, allowing voltage-tier upgrades (e.g., SF802G → SF804G) without PCB changes.

Does the SF802G meet automotive qualification standards?

The base SF802G is not AEC-Q101 qualified; however, the variant SF802GH is explicitly qualified to AEC-Q101. Per Taiwan Semiconductor's ordering information, only parts suffixed with "H" (e.g., SF802GH) undergo automotive stress testing including temperature cycling, HTRB, and ESD. Standard SF802G is intended for industrial and commercial applications.

What is the reverse recovery time (t_rr) test condition for the SF802G?

The SF802G reverse recovery time is specified as t_rr ≤ 35 ns under conditions: I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the Electrical Specifications table in the I2104 datasheet. This standardized test reflects real-world switching behavior in hard-commutated converters and validates suitability for 100–500 kHz operation.

How does the dual-die structure of the SF802G impact thermal performance?

The SF802G's dual-die construction distributes current and heat across two silicon dies within one TO-220AB package, maintaining R_θJC = 3 °C/W-identical to single-die equivalents. This architecture improves current sharing reliability and reduces localized hot-spot risk without compromising thermal resistance, making it especially valuable in high-duty-cycle freewheeling applications.

SF802G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: TO-220-3

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):: 8A

Voltage - Forward (Vf) (Max) @ If:: 975 mV @ 4 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:: TO-220AB

SF802G FAQ

1.How can I place an order for SF802G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF802G 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 SF802G reliable?

The price and inventory of SF802G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF802G is usually 5 days.

3.What payment methods are accepted for SF802G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF802G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF802G?

SF802G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF802G 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 SF802G?

For technical support, including SF802G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF802G requirements.

6.How does Aetrix verify that SF802G is sourced from the original manufacturer or authorized distributors?

All SF802G 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 SF802G meets industry standards.

7.What is the process for return or replacement of SF802G?

All SF802G units undergo pre-shipment inspection (PSI). If there is an issue with SF802G, 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 SF802G part is unused and in its original packaging.

Return procedure for SF802G:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…