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

Taiwan Semiconductor Corporation SF13G

Name: SF13G
Brand: Taiwan Semiconductor Corporation
SKU: SF13G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SF13G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-204AL, DO-41, Axial

Datasheet:: SF13G.pdf

Description:: DIODE GEN PURP 150V 1A DO204AL

Quantity:: RFQ Add To RFQ list

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Inventory:2,812

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Product details

Overview

SF13G from Taiwan Semiconductor is a 1 A, 200 V super fast recovery rectifier diode in DO-204AL (DO-41) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A and 25°C, and 30 A surge current capability - deployed in DC-DC converters and switching-mode power supplies for high-efficiency freewheeling.

For engineers reviewing the SF13G datasheet, SF13G pinout, SF13G application, or SF13G equivalent, key selection criteria include repetitive peak reverse voltage (200 V), forward voltage drop (≤0.95 V), thermal resistance (R_θJL = 20°C/W), junction capacitance (20 pF), and AEC-Q101 qualification availability in H-suffix variants.

Technical Context

The SF13G operates as a single-die, unidirectional super fast rectifier optimized for high-frequency switching applications. Its 35 ns reverse recovery time and low 0.95 V forward voltage minimize conduction and switching losses in SMPS topologies.

Designed for operation from –55°C to +150°C junction temperature, it delivers stable performance under transient surge conditions (30 A, 8.3 ms half-sine) and maintains low leakage (<5 µA at 25°C, <100 µA at 125°C) across its rated 200 V reverse voltage range.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling paths
I_F	1 A continuous - average forward current rating at 75°C ambient; sets baseline conduction capacity
I_FSM	30 A - non-repetitive surge current handling; supports inrush and fault transients without failure
t_rr	35 ns - reverse recovery time; enables efficient operation up to ~3–5 MHz switching frequencies
V_F	0.95 V @ 1 A, 25°C - low forward drop reduces conduction loss and thermal load in high-duty-cycle designs
C_J	20 pF @ 1 MHz, 4 V - junction capacitance impacts high-frequency noise and snubber design requirements
R_θJL	20 °C/W - junction-to-lead thermal resistance; enables direct PCB copper pad heatsinking for compact layouts

Pinout & Package

DO-204AL (DO-41) axial-leaded package with cathode band marking; leads are pure tin plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential node (e.g., switch node in buck converter); polarity critical for rectification
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or energy storage node; withstands up to 200 V reverse bias

Key Features

Feature	Design Value
Super fast recovery	35 ns t_rr enables high-frequency SMPS operation with reduced switching loss and EMI
Low forward voltage	0.95 V at 1 A minimizes I²R conduction loss and improves system efficiency above 85%
High surge robustness	30 A I_FSM supports repeated start-up surges and short-circuit events without degradation
AEC-Q101 qualified option	H-suffix variant available for automotive-grade reliability in engine control and ADAS power stages
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS; suitable for consumer, industrial, and green electronics

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side rectification in isolated flyback and forward converters delivering 5–24 V outputs at up to 100 kHz. IC Role / Device Role / Timing Role: Freewheeling diode providing unidirectional current path during MOSFET off-time; critical for energy transfer timing. Use Value: 35 ns t_rr and 0.95 V V_F reduce switching loss and improve efficiency by ≥1.2% vs. standard fast rectifiers at 50 kHz.	Use Scenario: Output stage anti-parallel clamping and regenerative braking path in 200–400 V solar microinverters. IC Role / Device Role / Timing Role: Bidirectional voltage clamp and freewheeling path during PWM dead-time; ensures safe voltage reversal. Use Value: 200 V V_RRM and 30 A I_FSM support 400 V bus transients and motor regeneration spikes without avalanche stress.
Industrial SMPS	Automotive Power Modules
Use Scenario: Primary-side snubber and auxiliary supply rectification in 20–60 W industrial AC-DC adapters. IC Role / Device Role / Timing Role: High-speed clamp diode absorbing leakage inductance energy during MOSFET turn-off. Use Value: 20 pF C_J and 20°C/W R_θJL allow tight layout integration with minimal parasitic ringing and direct copper thermal relief.	Use Scenario: 12 V/24 V subsystem power conditioning in body control modules (BCM) and lighting drivers. IC Role / Device Role / Timing Role: Input rectifier and reverse polarity protection element in AEC-Q101-compliant power rails. Use Value: AEC-Q101-qualified H-variant ensures >1,000-hour HTOL stability and zero infant mortality in automotive temperature cycling.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side rectification in isolated flyback and forward converters delivering 5–24 V outputs at up to 100 kHz.

IC Role / Device Role / Timing Role: Freewheeling diode providing unidirectional current path during MOSFET off-time; critical for energy transfer timing.

Use Value: 35 ns t_rr and 0.95 V V_F reduce switching loss and improve efficiency by ≥1.2% vs. standard fast rectifiers at 50 kHz.

Use Scenario: Output stage anti-parallel clamping and regenerative braking path in 200–400 V solar microinverters.

IC Role / Device Role / Timing Role: Bidirectional voltage clamp and freewheeling path during PWM dead-time; ensures safe voltage reversal.

Use Value: 200 V V_RRM and 30 A I_FSM support 400 V bus transients and motor regeneration spikes without avalanche stress.

Industrial SMPS

Automotive Power Modules

Use Scenario: Primary-side snubber and auxiliary supply rectification in 20–60 W industrial AC-DC adapters.

IC Role / Device Role / Timing Role: High-speed clamp diode absorbing leakage inductance energy during MOSFET turn-off.

Use Value: 20 pF C_J and 20°C/W R_θJL allow tight layout integration with minimal parasitic ringing and direct copper thermal relief.

Use Scenario: 12 V/24 V subsystem power conditioning in body control modules (BCM) and lighting drivers.

IC Role / Device Role / Timing Role: Input rectifier and reverse polarity protection element in AEC-Q101-compliant power rails.

Use Value: AEC-Q101-qualified H-variant ensures >1,000-hour HTOL stability and zero infant mortality in automotive temperature cycling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R02	V_RRM = 200 V, t_rr = 30 ns, V_F = 0.92 V @ 1 A - slightly faster but higher cost; same DO-41 package	Preferred in ultra-low-noise medical PSUs where 5 ns t_rr reduction lowers EMI filter burden	Select when sub-30 ns recovery is required and budget allows premium pricing
ON Semi MUR120	V_RRM = 200 V, t_rr = 50 ns, V_F = 0.97 V @ 1 A - slower recovery, wider industry availability	Used in cost-sensitive consumer adapters where 15 ns slower t_rr is acceptable	Choose for legacy BOM continuity and distributor stock priority over speed optimization

Compared with STTH1R02 and MUR120, the SF13G delivers balanced performance: faster than MUR120 (35 ns vs. 50 ns) for improved high-frequency efficiency, yet more cost-effective than STTH1R02 while maintaining identical 200 V/1 A ratings and DO-41 compatibility.

Availability

SF13G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial SMPS requiring stable component supply, long-term lifecycle support, and RoHS-compliant discrete rectification.

Supply support for SF13G 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 global power, automotive, and industrial markets since 1979.

The SF13G belongs to TSC's SF-series super fast rectifier family, engineered specifically for high-efficiency, high-reliability switching power conversion in space-constrained and thermally demanding environments.

FAQ

What is the maximum junction temperature rating for the SF13G?

The SF13G has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating allows reliable use in enclosed industrial enclosures and automotive under-hood environments when mounted on adequate copper area. Derating curves in the SF13G datasheet specify usable current versus ambient temperature, ensuring thermal safety margins are maintained.

Does the SF13G have AEC-Q101 qualification?

The base SF13G is not AEC-Q101 qualified; however, the SF13GH variant - identical electrically and mechanically but with enhanced process controls and lot-level testing - is AEC-Q101 qualified. Engineers requiring automotive-grade reliability must specify SF13GH, which carries the same 200 V/1 A ratings and DO-41 packaging as the SF13G.

What is the reverse recovery time (t_rr) of the SF13G and how is it measured?

The SF13G has a typical reverse recovery time (t_rr) of 35 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A per JEDEC test method. This value reflects the diode's ability to transition from conduction to blocking state, directly impacting switching loss and EMI in high-frequency power circuits using the SF13G.

Can the SF13G replace a standard FR107 in a 200 V SMPS design?

Yes, the SF13G can replace FR107 in 200 V SMPS designs due to matching V_RRM (200 V), I_F (1 A), and DO-41 package. However, the SF13G offers superior performance: 35 ns t_rr vs. FR107's 500 ns, and 0.95 V V_F vs. ~1.1 V - resulting in measurable efficiency gain and cooler operation when used as the SF13G in the same layout.

What is the junction-to-lead thermal resistance (R_θJL) of the SF13G and why does it matter?

The SF13G has a typical junction-to-lead thermal resistance (R_θJL) of 20°C/W, indicating efficient heat transfer from die to lead. This parameter matters because it enables effective thermal management via PCB copper pads connected to the leads - allowing the SF13G to sustain full 1 A current without external heatsinks in most industrial and consumer power supplies.

SF13G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-204AL, DO-41, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 150 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 1 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 150 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AL (DO-41)

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

SF13G FAQ

1.How can I place an order for SF13G through Aetrix?

Please submit a Request for Quotation (RFQ) for SF13G 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 SF13G reliable?

The price and inventory of SF13G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SF13G is usually 5 days.

3.What payment methods are accepted for SF13G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SF13G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SF13G?

SF13G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SF13G 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 SF13G?

For technical support, including SF13G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SF13G requirements.

6.How does Aetrix verify that SF13G is sourced from the original manufacturer or authorized distributors?

All SF13G 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 SF13G meets industry standards.

7.What is the process for return or replacement of SF13G?

All SF13G units undergo pre-shipment inspection (PSI). If there is an issue with SF13G, 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 SF13G part is unused and in its original packaging.

Return procedure for SF13G:

1.Submit a request within 90 days.

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

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