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

Taiwan Semiconductor Corporation SFT13G R0G

Name: SFT13G R0G
Brand: Taiwan Semiconductor Corporation
SKU: SFT13G R0G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFT13G R0G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: T-18, Axial

Datasheet:: SFT13G R0G.pdf

Description:: DIODE GEN PURP 150V 1A TS-1

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SFT13G from Taiwan Semiconductor is a 1 A, 150 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 20 pF junction capacitance at 1 MHz/4.0 V - used in DC-DC converters and freewheeling paths in switching power supplies.

For engineers reviewing the SFT13G datasheet, SFT13G pinout, SFT13G application, or SFT13G equivalent, key selection criteria include V_RRM = 150 V, I_F = 1 A, t_rr = 35 ns, V_F = 0.95 V, and TS-1 package compatibility with high-density PCB layouts requiring low-profile surface-mount rectifiers.

Technical Context

The SFT13G is a single-die, planar epitaxial super fast recovery 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 up to 150 °C junction temperature, it supports continuous 1 A forward current with 30 A non-repetitive surge capability (8.3 ms half-sine), and exhibits 5 µA max reverse leakage at 25 °C and rated V_R.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	150 V - maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling circuits
I_F	1 A - average forward current rating; determines continuous power-handling capacity in DC-DC output stages
t_rr	35 ns - reverse recovery time; enables efficient operation at >100 kHz switching frequencies with low switching loss
V_F	0.95 V @ 1 A, 25 °C - forward voltage drop; directly impacts conduction loss and thermal rise in high-duty-cycle designs
C_J	20 pF @ 1 MHz, 4.0 V - junction capacitance; influences high-frequency noise and EMI behavior in snubberless layouts
I_FSM	30 A - peak non-repetitive surge current; supports robustness against inrush and transient overloads
T_J max	150 °C - maximum junction temperature; enables reliable operation in thermally constrained industrial environments

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 compliant with J-STD-002 solderability.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of switching node; polarity must align with circuit current direction
Cathode	Forward current exit point / reverse blocking terminal	Marked by visible band; ties to higher-potential rail or switch node; blocks reverse voltage up to 150 V

Key Features

Feature	Design Value
Super fast recovery	t_rr = 35 ns enables high-frequency (>100 kHz) operation with minimal switching loss and EMI
Low forward voltage	V_F = 0.95 V @ 1 A reduces conduction loss and improves efficiency in compact power stages
High surge robustness	I_FSM = 30 A withstands inrush and fault transients without degradation in industrial converters
AEC-Q101 qualified option	SFT13GH variant available for automotive-grade reliability in under-hood power modules

Applications

DC-DC Converter Output Rectification	Switching Inverter Freewheeling
Use Scenario: Secondary-side synchronous or diode rectification in isolated 12 V–48 V output buck-derived DC-DC converters. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during switch off-time; blocks reverse current during on-time. Use Value: 35 ns t_rr and 0.95 V V_F reduce switching and conduction losses, improving overall converter efficiency by ~1.2% vs. standard fast rectifiers.	Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in H-bridge inverters. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive kickback current when main switches turn off. Use Value: 30 A I_FSM and 150 °C T_J max ensure reliability during repeated high-current flyback events in 20 kHz PWM drives.
AC-DC Auxiliary Supply	Industrial SMPS Snubberless Design
Use Scenario: Low-power auxiliary bias supply (<1 W) derived from main transformer auxiliary winding in offline SMPS. IC Role / Device Role / Timing Role: Rectifies low-current AC waveform into stable DC for control IC bias rails. Use Value: 5 µA max I_R at 25 °C minimizes standby leakage, supporting <50 mW no-load consumption targets.	Use Scenario: Primary-side clamp-free flyback or forward converter where snubber loss must be minimized. IC Role / Device Role / Timing Role: Fast recovery prevents voltage overshoot during MOSFET turn-on by rapidly removing stored charge. Use Value: 20 pF C_J and 35 ns t_rr reduce ringing amplitude and damping requirements, simplifying layout and reducing component count.

DC-DC Converter Output Rectification

Switching Inverter Freewheeling

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

IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during switch off-time; blocks reverse current during on-time.

Use Value: 35 ns t_rr and 0.95 V V_F reduce switching and conduction losses, improving overall converter efficiency by ~1.2% vs. standard fast rectifiers.

Use Scenario: Freewheeling path across inductive loads (e.g., motor windings, solenoids) in H-bridge inverters.

IC Role / Device Role / Timing Role: Provides low-loss return path for inductive kickback current when main switches turn off.

Use Value: 30 A I_FSM and 150 °C T_J max ensure reliability during repeated high-current flyback events in 20 kHz PWM drives.

AC-DC Auxiliary Supply

Industrial SMPS Snubberless Design

Use Scenario: Low-power auxiliary bias supply (<1 W) derived from main transformer auxiliary winding in offline SMPS.

IC Role / Device Role / Timing Role: Rectifies low-current AC waveform into stable DC for control IC bias rails.

Use Value: 5 µA max I_R at 25 °C minimizes standby leakage, supporting <50 mW no-load consumption targets.

Use Scenario: Primary-side clamp-free flyback or forward converter where snubber loss must be minimized.

IC Role / Device Role / Timing Role: Fast recovery prevents voltage overshoot during MOSFET turn-on by rapidly removing stored charge.

Use Value: 20 pF C_J and 35 ns t_rr reduce ringing amplitude and damping requirements, simplifying layout and reducing component count.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06	V_RRM = 600 V, t_rr = 50 ns, V_F = 1.15 V @ 1 A - higher voltage rating but slower recovery and higher VF	Preferred in universal-input PFC stages; less optimal for 150 V-class DC-DC where speed and VF dominate	Select SFT13G when V_RRM ≤ 150 V and t_rr < 40 ns is required for high-frequency efficiency
ES1J	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.7 V @ 1 A - same speed but significantly higher forward drop	Used in cost-sensitive consumer adapters; unsuitable for thermally constrained or high-efficiency designs	Choose SFT13G where V_F < 1.0 V and thermal margin below 150 °C is critical

Compared with STTH1R06 and ES1J, the SFT13G delivers the lowest combined conduction-switching loss profile at 150 V blocking, making it optimal for space-constrained, high-efficiency industrial DC-DC and inverter freewheeling where thermal headroom and EMI control are design priorities.

Availability

SFT13G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching inverter freewheeling, and industrial SMPS snubberless design requiring stable component supply and consistent TS-1 tape-and-reel delivery.

Supply support for SFT13G 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, specializing in power rectifiers, TVS diodes, MOSFETs, and bipolar transistors.

The SFT13G belongs to TSC's SFT1xG super fast rectifier family, engineered specifically for high-frequency switching power supplies demanding low V_F, fast t_rr, and robust surge capability in compact surface-mount packages.

FAQ

What is the maximum junction temperature rating for the SFT13G?

The SFT13G has a maximum junction temperature (T_J max) of +150 °C, allowing reliable operation in thermally demanding industrial and automotive-qualified power supply environments. This rating is validated per JEDEC standards and supports continuous 1 A forward current with appropriate PCB copper area and ambient conditions. Derating curves in the official SFT13G datasheet define allowable current versus ambient temperature.

Does the SFT13G meet AEC-Q101 qualification?

The base SFT13G is not AEC-Q101 qualified; however, the SFT13GH variant - identical in electrical and thermal performance - is fully AEC-Q101 qualified for automotive applications. The "H" suffix denotes qualification per stress test requirements including temperature cycling, HTRB, and ESD. For automotive designs requiring qualification, specify SFT13GH instead of SFT13G.

What is the reverse recovery time (t_rr) of the SFT13G and how is it measured?

The SFT13G 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 the manufacturer's test circuit in Figure 6 of the SFT13G datasheet. This value reflects the time required for minority carriers to clear after forward conduction, directly impacting switching loss in high-frequency converters.

What package type does the SFT13G use and what are its key mechanical features?

The SFT13G uses the TS-1 surface-mount package: a low-profile, single-ended outline with cathode band marking, UL 94V-0 compliant molding compound, and pure tin-plated leads meeting J-STD-002 solderability. Its mass is approximately 0.200 g, and it supports standard reflow profiles. Pinout is anode–cathode with polarity indicated by the band.

How does the forward voltage (V_F) of the SFT13G compare to similar 150 V super fast rectifiers?

The SFT13G specifies a maximum forward voltage of 0.95 V at 1 A and 25 °C - among the lowest in its 150 V class. Compared to alternatives like ES1J (1.7 V) or STTH1R06 (1.15 V), this 0.2–0.75 V advantage reduces conduction loss by up to 45%, lowering thermal stress and improving efficiency in high-duty-cycle applications such as 48 V telecom DC-DC outputs.

SFT13G 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):: 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:: TS-1

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

SFT13G R0G FAQ

1.How can I place an order for SFT13G R0G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFT13G 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 SFT13G R0G reliable?

The price and inventory of SFT13G R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT13G R0G is usually 5 days.

3.What payment methods are accepted for SFT13G R0G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT13G R0G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFT13G R0G?

SFT13G R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFT13G 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 SFT13G R0G?

For technical support, including SFT13G R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT13G R0G requirements.

6.How does Aetrix verify that SFT13G R0G is sourced from the original manufacturer or authorized distributors?

All SFT13G 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 SFT13G R0G meets industry standards.

7.What is the process for return or replacement of SFT13G R0G?

All SFT13G R0G units undergo pre-shipment inspection (PSI). If there is an issue with SFT13G 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 SFT13G R0G part is unused and in its original packaging.

Return procedure for SFT13G R0G:

1.Submit a request within 90 days.

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

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