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

Taiwan Semiconductor Corporation SF24G A0G

Name: SF24G A0G
Brand: Taiwan Semiconductor Corporation
SKU: SF24G A0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF24G A0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SF24G A0G.pdf

Description:: DIODE GEN PURP 200V 2A DO204AC

Quantity:: RFQ Add To RFQ list

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Inventory:37

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Product details

Overview

SF24G A0G from Taiwan Semiconductor is a 2 A, 200 V super fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 2 A and 25°C, and 50 A surge current capability. It serves as a freewheeling or output rectifier in high-frequency DC/DC converters and switching inverters.

For engineers reviewing the SF24G A0G datasheet, SF24G A0G pinout, SF24G A0G application, or SF24G A0G equivalent, key selection criteria include V_RRM = 200 V, I_F = 2 A, t_rr = 35 ns, V_F = 0.95 V, and DO-204AC mechanical compatibility for board-level thermal and layout validation.

Technical Context

The SF24G A0G implements a single-die, glass-passivated PN junction optimized for high-speed switching with low conduction loss. Its 35 ns reverse recovery time and 0.95 V forward voltage at rated current enable efficient operation in 100–500 kHz SMPS topologies.

Thermally, it delivers R_θJA = 65°C/W and R_θJC = 16°C/W in the DO-204AC package, supporting continuous 2 A conduction up to 150°C junction temperature with appropriate PCB copper area.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 200 V-rated DC bus or flyback clamp circuits
I_F	2 A - Continuous average forward current; determines minimum trace width and heatsinking for steady-state power dissipation
t_rr	35 ns - Reverse recovery time; enables stable operation in high-frequency switch-mode converters without excessive switching loss or ringing
V_F	0.95 V @ 2 A, 25°C - Forward voltage drop; directly impacts conduction loss (P_cond ≈ 1.9 W at full load)
I_FSM	50 A - Non-repetitive surge current rating; supports inrush and transient overload tolerance during startup or fault conditions
C_J	40 pF @ 1 MHz, 4 V - Junction capacitance; influences high-frequency noise coupling and snubber design in resonant topologies

Pinout & Package

DO-204AC (DO-15) axial-leaded package with cathode band marking; leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck, transformer secondary in flyback)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or positive bus; must withstand full V_RRM during off-state

Key Features

Feature	Design Value
Glass-passivated junction	Enhances humidity resistance and long-term reliability under thermal cycling and humid environments
Low V_F (0.95 V)	Reduces conduction loss by ~15% vs. standard fast rectifiers at 2 A, improving efficiency in compact power supplies
35 ns t_rr	Enables clean turn-off in 300–500 kHz converters, minimizing EMI and gate drive stress on MOSFETs
RoHS & halogen-free	Complies with IEC 61249-2-21; supports environmentally regulated industrial and automotive end equipment

Applications

DC/DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification replacement in isolated 12 V–48 V output buck-derived converters. IC Role / Device Role / Timing Role: Freewheeling rectifier handling bidirectional current during MOSFET dead-time, requiring fast t_rr and low V_F. Use Value: 35 ns t_rr prevents cross-conduction losses; 0.95 V V_F reduces output-stage conduction loss by >0.5 W vs. legacy FR107.	Use Scenario: Output rectification in 1–3 kW solar microinverters operating at 100–200 kHz. IC Role / Device Role / Timing Role: High-efficiency unidirectional current path after H-bridge AC output filtering. Use Value: 50 A I_FSM withstands grid-spike surges; DO-204AC package allows direct mounting to heatsink via lead bending.
Freewheeling Diodes	Industrial SMPS
Use Scenario: Inductive load protection in 24 V PLC output modules driving solenoids and relays. IC Role / Device Role / Timing Role: Clamp diode across inductive coil, conducting only during L·di/dt energy dissipation. Use Value: 200 V V_RRM safely absorbs 2× supply transients; 35 ns t_rr ensures rapid turn-on before voltage overshoot exceeds 250 V.	Use Scenario: Main output rectifier in 48 V telecom rectifiers with forced-air cooling. IC Role / Device Role / Timing Role: Primary power conversion element delivering continuous 2 A to system backplane. Use Value: R_θJC = 16°C/W enables direct thermal coupling to chassis; 150°C T_JMAX supports derated operation at 85°C ambient.

DC/DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification replacement in isolated 12 V–48 V output buck-derived converters.

IC Role / Device Role / Timing Role: Freewheeling rectifier handling bidirectional current during MOSFET dead-time, requiring fast t_rr and low V_F.

Use Value: 35 ns t_rr prevents cross-conduction losses; 0.95 V V_F reduces output-stage conduction loss by >0.5 W vs. legacy FR107.

Use Scenario: Output rectification in 1–3 kW solar microinverters operating at 100–200 kHz.

IC Role / Device Role / Timing Role: High-efficiency unidirectional current path after H-bridge AC output filtering.

Use Value: 50 A I_FSM withstands grid-spike surges; DO-204AC package allows direct mounting to heatsink via lead bending.

Freewheeling Diodes

Industrial SMPS

Use Scenario: Inductive load protection in 24 V PLC output modules driving solenoids and relays.

IC Role / Device Role / Timing Role: Clamp diode across inductive coil, conducting only during L·di/dt energy dissipation.

Use Value: 200 V V_RRM safely absorbs 2× supply transients; 35 ns t_rr ensures rapid turn-on before voltage overshoot exceeds 250 V.

Use Scenario: Main output rectifier in 48 V telecom rectifiers with forced-air cooling.

IC Role / Device Role / Timing Role: Primary power conversion element delivering continuous 2 A to system backplane.

Use Value: R_θJC = 16°C/W enables direct thermal coupling to chassis; 150°C T_JMAX supports derated operation at 85°C ambient.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R02	V_RRM = 200 V, t_rr = 30 ns, V_F = 0.92 V @ 2 A - slightly faster and lower V_F, but R_θJA = 70°C/W	Better for ultra-high-frequency designs (<500 kHz); less thermally robust in convection-cooled layouts	Select STTH2R02 when minimizing switching loss dominates over thermal margin; verify PCB copper area meets higher R_θJA.
ES2D	V_RRM = 200 V, t_rr = 35 ns, V_F = 0.98 V @ 2 A - identical t_rr, marginally higher V_F, DO-204AC compatible	Same footprint and thermal profile; slightly higher conduction loss increases junction temp by ~2°C at full load	ES2D offers drop-in replacement where minor efficiency trade-off is acceptable and second-source assurance is required.

Compared with STTH2R02 and ES2D, the SF24G A0G provides optimal balance of speed (35 ns), conduction loss (0.95 V), and thermal performance (R_θJA = 65°C/W) in cost-sensitive industrial SMPS, making it preferred for convection-cooled 200 V rectification where reliability and manufacturability outweigh marginal parameter gains.

Availability

SF24G A0G is available at Aetrix Electronics and suitable for DC/DC converters, switching inverters, and industrial SMPS requiring stable component supply, consistent DO-204AC form factor, and AEC-Q101-optional qualification path.

Supply support for SF24G A0G 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 consumer markets since 1979.

The SF24G A0G belongs to TSC's SF2xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability power conversion in space-constrained and thermally demanding applications.

FAQ

What is the maximum junction temperature rating for the SF24G A0G?

The SF24G A0G has a maximum junction temperature (T_JMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version H2105. This rating applies under continuous conduction with proper PCB thermal design and allows operation in industrial environments up to 85°C ambient when derated per the forward current derating curve. The SF24G A0G maintains stable electrical parameters within this range.

Is the SF24G A0G RoHS and halogen-free compliant?

Yes, the SF24G A0G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" and "Mechanical Data" sections of the Taiwan Semiconductor SF21G–SF28G datasheet (Version H2105). The molding compound meets UL 94V-0, and the pure tin-plated leads satisfy J-STD-002 solderability requirements. This compliance is inherent to the SF24G A0G manufacturing process.

What does the "A0G" suffix indicate in SF24G A0G?

The "A0G" suffix in SF24G A0G specifies the packaging variant: DO-204AC (DO-15) in 1,500-piece ammo box packaging, per the "Ordering Information" table in the Taiwan Semiconductor datasheet. "A0" denotes ammo box, and "G" indicates green (halogen-free) compound. It is distinct from "SF24GH" (AEC-Q101 qualified) and "SF24G" (standard tape-and-reel).

Does the SF24G A0G have an AEC-Q101 qualification?

No, the SF24G A0G is not AEC-Q101 qualified. Only variants marked with "H" (e.g., SF24GH) are AEC-Q101 qualified, as explicitly stated in the "Ordering Information" and "Features" sections of the Taiwan Semiconductor SF21G–SF28G datasheet. The SF24G A0G shares the same die and electrical specs but lacks the automotive-grade screening and test documentation required for AEC-Q101 certification.

What is the reverse recovery time (t_rr) of the SF24G A0G and under what test conditions?

The SF24G A0G has a maximum reverse recovery time (t_rr) of 35 ns, measured under the conditions: I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A, per the "Electrical Specifications" table in the Taiwan Semiconductor datasheet (Version H2105). This value is guaranteed across the full operating temperature range and is critical for minimizing switching loss in high-frequency SMPS using the SF24G A0G.

SF24G A0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

Capacitance @ Vr, F:: 40pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

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

SF24G A0G FAQ

1.How can I place an order for SF24G A0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF24G A0G 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 SF24G A0G reliable?

The price and inventory of SF24G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF24G A0G is usually 5 days.

3.What payment methods are accepted for SF24G A0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF24G A0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF24G A0G?

SF24G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF24G A0G 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 SF24G A0G?

For technical support, including SF24G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF24G A0G requirements.

6.How does Aetrix verify that SF24G A0G is sourced from the original manufacturer or authorized distributors?

All SF24G A0G 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 SF24G A0G meets industry standards.

7.What is the process for return or replacement of SF24G A0G?

All SF24G A0G units undergo pre-shipment inspection (PSI). If there is an issue with SF24G A0G, 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 SF24G A0G part is unused and in its original packaging.

Return procedure for SF24G A0G:

1.Submit a request within 90 days.

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

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