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

Taiwan Semiconductor Corporation SFT11G R0G

Name: SFT11G R0G
Brand: Taiwan Semiconductor Corporation
SKU: SFT11G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFT11G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: T-18, Axial

Datasheet:: SFT11G R0G.pdf

Description:: DIODE GEN PURP 50V 1A TS-1

Quantity:: RFQ Add To RFQ list

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Inventory:4,585

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Product details

Overview

SFT11G R0G from Taiwan Semiconductor is a 1 A, 50 V repetitive peak reverse voltage super fast rectifier diode in TS-1 package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A and 25 °C, and AEC-Q101 qualification option (SFT11GH). It serves as a freewheeling or output rectifier in DC-DC converters.

For engineers reviewing the SFT11G R0G datasheet, SFT11G R0G pinout, SFT11G R0G application, or SFT11G R0G equivalent, key selection criteria include V_RRM = 50 V, I_F = 1 A, t_rr = 35 ns, V_F = 0.95 V, and TS-1 package thermal resistance of 100 °C/W.

Technical Context

The SFT11G R0G is a single-die, planar junction silicon rectifier optimized for high-speed switching. Its 35 ns reverse recovery time enables efficient operation in high-frequency SMPS topologies up to several hundred kHz, while its low 0.95 V forward voltage minimizes conduction loss at 1 A DC current.

Designed with pure tin-plated leads compliant with J-STD-002 and JESD201 Class 2 whisker testing, the device supports lead-free reflow soldering. The TS-1 package provides 100 °C/W junction-to-ambient thermal resistance and meets UL 94V-0 flammability rating.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling circuits
I_F	1 A - Continuous average forward current; sets maximum steady-state power delivery capability
t_rr	35 ns - Reverse recovery time; enables high-frequency switching (>200 kHz) with low switching loss
V_F	0.95 V @ 1 A, 25 °C - Forward voltage drop; determines conduction loss (0.95 W at 1 A)
I_FSM	30 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload tolerance
R_θJA	100 °C/W - Junction-to-ambient thermal resistance; requires minimal PCB copper area for thermal management
Junction temp	–55 to +150 °C - Operating temperature range; supports automotive under-hood and industrial ambient conditions

Pinout & Package

TS-1 package: surface-mount, single-ended anode-cathode configuration with cathode band marking; 0.200 g mass; UL 94V-0 molding compound; pure tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node in buck converter)
Cathode	Forward current exit point	Marked by band; connected to output rail or inductor return path

Key Features

Feature	Design Value
Super fast recovery	t_rr = 35 ns enables >200 kHz switching with low turn-off loss in SMPS
Low forward voltage	V_F = 0.95 V @ 1 A reduces conduction loss vs. standard rectifiers (e.g., 1N4007: ~1.1 V)
AEC-Q101 qualified variant	SFT11GH available for automotive applications requiring stress-tested reliability
Halogen-free construction	Complies with IEC 61249-2-21; supports RoHS-compliant manufacturing and end-of-life handling
High surge robustness	I_FSM = 30 A withstands startup surges and short-circuit transients without failure

Applications

Buck Converter Output Rectification	Automotive DC-DC Module
Use Scenario: High-efficiency 12 V to 5 V/3.3 V step-down conversion in infotainment systems. IC Role / Device Role / Timing Role: Freewheeling diode providing continuous inductor current path during high-side switch off-time. Use Value: 35 ns t_rr and 0.95 V V_F reduce total power loss by ~18% versus standard fast rectifiers at 200 kHz.	Use Scenario: 48 V to 12 V bidirectional DC-DC in mild hybrid vehicles. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement where gate drive complexity is avoided. Use Value: AEC-Q101-qualified variant (SFT11GH) ensures reliability across –40 °C to +125 °C ambient with 150 °C junction limit.
Industrial SMPS Auxiliary Supply	LED Driver Freewheeling Path
Use Scenario: 24 V input, 15 V/0.8 A auxiliary bias supply for PLC I/O modules. IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback topology. Use Value: 100 °C/W R_θJA allows operation at full load on minimal 1 oz copper without heatsink.	Use Scenario: Constant-current LED driver with inductive energy storage and PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductor back-EMF during MOSFET off-periods. Use Value: 30 A I_FSM handles repetitive LED current surges without degradation over 50,000+ cycles.

Buck Converter Output Rectification

Automotive DC-DC Module

Use Scenario: High-efficiency 12 V to 5 V/3.3 V step-down conversion in infotainment systems.

IC Role / Device Role / Timing Role: Freewheeling diode providing continuous inductor current path during high-side switch off-time.

Use Value: 35 ns t_rr and 0.95 V V_F reduce total power loss by ~18% versus standard fast rectifiers at 200 kHz.

Use Scenario: 48 V to 12 V bidirectional DC-DC in mild hybrid vehicles.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement where gate drive complexity is avoided.

Use Value: AEC-Q101-qualified variant (SFT11GH) ensures reliability across –40 °C to +125 °C ambient with 150 °C junction limit.

Industrial SMPS Auxiliary Supply

LED Driver Freewheeling Path

Use Scenario: 24 V input, 15 V/0.8 A auxiliary bias supply for PLC I/O modules.

IC Role / Device Role / Timing Role: Output rectifier in discontinuous conduction mode (DCM) flyback topology.

Use Value: 100 °C/W R_θJA allows operation at full load on minimal 1 oz copper without heatsink.

Use Scenario: Constant-current LED driver with inductive energy storage and PWM dimming.

IC Role / Device Role / Timing Role: Freewheeling diode clamping inductor back-EMF during MOSFET off-periods.

Use Value: 30 A I_FSM handles repetitive LED current surges without degradation over 50,000+ cycles.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-1EWH05	V_RRM = 50 V, t_rr = 35 ns, V_F = 0.93 V @ 1 A, DO-214AC package	Higher R_θJA (~120 °C/W); requires larger pad area for same thermal performance	Preferred when DO-214AC footprint is fixed and lead-free soldering compatibility is required
ON Semiconductor MUR105	V_RRM = 50 V, t_rr = 50 ns, V_F = 0.98 V @ 1 A, DO-41 package	Slower recovery (50 ns), axial leaded through-hole mounting	Selected for legacy through-hole designs where board rework to SMT is not feasible

Compared with VS-1EWH05 and MUR105, the SFT11G R0G offers identical V_RRM and t_rr but superior thermal resistance in TS-1 package, enabling higher power density in space-constrained SMT layouts without compromising surge robustness.

Availability

SFT11G R0G is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, automotive-grade traceability, and RoHS/halogen-free compliance.

Supply support for SFT11G R0G 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, automotive, and consumer markets since 1979.

The SFT11G R0G belongs to TSC's Super Fast Rectifier family, engineered specifically for high-frequency, high-efficiency power conversion in compact SMT packages with AEC-Q101-qualified variants for automotive subsystems.

FAQ

What is the maximum junction temperature rating for SFT11G R0G?

The SFT11G R0G has a maximum junction temperature (T_J) of +150 °C, allowing reliable operation in high-ambient environments such as automotive engine compartments or enclosed industrial power supplies. This rating is validated per JEDEC standards and supports continuous operation up to rated I_F when thermal design maintains junction temperature below this limit. Derating curves in the official datasheet define allowable current reduction above 25 °C ambient.

Is SFT11G R0G pin-compatible with other devices in the SFT11G–SFT18G series?

Yes, all SFT11G–SFT18G devices share identical TS-1 package dimensions, pinout, and thermal characteristics - only V_RRM and related parameters (e.g., V_F, C_J) differ. The SFT11G R0G uses the same anode/cathode terminal layout and marking convention (cathode band) as SFT12G through SFT18G, enabling direct voltage-rating upgrades on the same PCB footprint without layout changes.

Does SFT11G R0G meet automotive qualification requirements?

The base SFT11G R0G is not AEC-Q101 qualified; however, the SFT11GH variant is fully AEC-Q101 qualified and shares identical electrical specs and package. For automotive applications requiring stress-tested reliability, SFT11GH must be specified - it undergoes temperature cycling, HTRB, and ESD testing per AEC-Q101 Rev D. SFT11G R0G remains suitable for industrial and commercial use.

What is the reverse leakage current specification for SFT11G R0G at elevated temperature?

At T_J = 125 °C and rated V_R, the SFT11G R0G exhibits a maximum reverse leakage current (I_R) of 100 µA. At 25 °C, I_R is limited to 5 µA. This low leakage supports stable operation in high-impedance feedback networks and minimizes standby power loss in always-on auxiliary supplies.

How does the TS-1 package of SFT11G R0G compare thermally to DO-214AC alternatives?

The TS-1 package delivers R_θJA = 100 °C/W, outperforming typical DO-214AC rectifiers (e.g., ~120 °C/W) due to optimized leadframe thermal path and smaller footprint. This allows the SFT11G R0G to dissipate 0.95 W at lower temperature rise - critical for dense PCB layouts. Thermal performance is verified using JEDEC JESD51-2 test conditions with 1-inch² 2-oz copper pad.

SFT11G R0G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: T-18, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 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 @ 50 V

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TS-1

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

SFT11G R0G FAQ

1.How can I place an order for SFT11G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFT11G R0G 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 SFT11G R0G reliable?

The price and inventory of SFT11G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT11G R0G is usually 5 days.

3.What payment methods are accepted for SFT11G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT11G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFT11G R0G?

SFT11G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFT11G R0G 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 SFT11G R0G?

For technical support, including SFT11G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT11G R0G requirements.

6.How does Aetrix verify that SFT11G R0G is sourced from the original manufacturer or authorized distributors?

All SFT11G R0G 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 SFT11G R0G meets industry standards.

7.What is the process for return or replacement of SFT11G R0G?

All SFT11G R0G units undergo pre-shipment inspection (PSI). If there is an issue with SFT11G R0G, 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 SFT11G R0G part is unused and in its original packaging.

Return procedure for SFT11G R0G:

1.Submit a request within 90 days.

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

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