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

Taiwan Semiconductor Corporation SFT16G

Name: SFT16G
Brand: Taiwan Semiconductor Corporation
SKU: SFT16G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFT16G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: T-18, Axial

Datasheet:: SFT16G.pdf

Description:: DIODE GEN PURP 400V 1A TS-1

Quantity:: RFQ Add To RFQ list

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Inventory:5,000

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Product details

Overview

SFT16G from Taiwan Semiconductor is a 1 A, 400 V repetitive peak reverse voltage super fast rectifier diode in TS-1 package, featuring 35 ns reverse recovery time, 1.30 V forward voltage at 1 A and 25°C, and 10 pF junction capacitance - deployed in DC-DC converters and switching-mode inverters requiring fast switching and low conduction loss.

For engineers reviewing the SFT16G datasheet, SFT16G pinout, SFT16G application, or SFT16G equivalent, key selection criteria include verified V_RRM = 400 V, I_F = 1 A continuous rating, t_rr = 35 ns, thermal resistance R_θJA = 100 °C/W, and TS-1 package compatibility with high-reliability power conversion designs.

Technical Context

The SFT16G is a single-die silicon planar super fast recovery rectifier optimized for high-frequency switching applications. Its 35 ns reverse recovery time and 1.30 V forward voltage at 1 A enable reduced switching losses in SMPS topologies operating up to several hundred kHz.

Rated for 400 V repetitive peak reverse voltage and 30 A non-repetitive surge current (8.3 ms half-sine), it operates across –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and RoHS/halogen-free requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports DC bus voltages up to 280 V RMS in bridge configurations without derating
I_F	1 A continuous - suitable for low-to-medium power DC-DC stages with <10 W output
t_rr	35 ns - enables efficient operation in 100–500 kHz switching converters
V_F	1.30 V @ 1 A, 25°C - limits conduction loss to ≤1.3 W at full rated current
C_J	10 pF @ 1 MHz, 4 V - minimizes capacitive turn-on loss and EMI generation
R_θJA	100 °C/W - requires minimal heatsinking when ambient ≤70°C and P_D ≤0.8 W
I_FSM	30 A (8.3 ms) - withstands typical inrush and transient overloads in offline supplies

Pinout & Package

TS-1 package: molded epoxy case with pure tin-plated leads, polarity indicated by cathode band, UL 94V-0 rated compound, weight ≈0.200 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry under forward bias	Connected to lower-potential side of switching node; handles full load current path
Cathode	Current exit under forward bias; marked with band	Connected to higher-potential rail; defines polarity-sensitive placement on PCB

Key Features

Feature	Design Value
Super fast recovery	t_rr = 35 ns ensures minimal switching loss and reduced EMI in high-frequency SMPS
Low forward voltage	V_F = 1.30 V @ 1 A improves efficiency in low-voltage output stages
High surge capability	I_FSM = 30 A supports robustness against line transients and startup surges
AEC-Q101 option available	SFT16GH variant qualified for automotive power electronics per stress test requirements
Halogen-free & RoHS	Complies with IEC 61249-2-21 and EU RoHS Directive for green manufacturing

Applications

DC-DC Converters	Switching Inverters
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 5–24 V outputs. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; defines output voltage polarity and conduction window. Use Value: 35 ns t_rr prevents reverse recovery overlap with high-side switch, reducing cross-conduction loss and improving efficiency by ~0.5–1.2% vs. standard fast rectifiers.	Use Scenario: Output stage in low-power solar microinverters or UPS inverters converting 12–48 V DC to 120/230 V AC. IC Role / Device Role / Timing Role: Unidirectional current path in H-bridge freewheeling legs; clamps inductive kickback during PWM dead-time. Use Value: 400 V V_RRM and 30 A I_FSM support 300 V DC-link operation with margin for voltage spikes, enabling reliable 100–200 W output staging.
Freewheeling Diodes	Industrial Power Supplies
Use Scenario: Inductive load snubbing in relay drivers, solenoid controllers, and motor gate-drive circuits. IC Role / Device Role / Timing Role: Provides low-impedance return path for stored inductor energy during switch turn-off. Use Value: 1.30 V V_F limits power dissipation to <1.3 W at 1 A, allowing compact layout without forced air cooling in enclosed enclosures.	Use Scenario: Input rectification and hold-up smoothing in DIN-rail mounted 24 V industrial PSUs. IC Role / Device Role / Timing Role: Primary AC input rectifier in voltage-doubler or bridge configuration feeding bulk capacitor. Use Value: TS-1 package with JESD201 Class 2 whisker resistance and –55°C to +150°C T_J rating ensures long-term reliability in unventilated control cabinets.

DC-DC Converters

Switching Inverters

Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 5–24 V outputs.

IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; defines output voltage polarity and conduction window.

Use Value: 35 ns t_rr prevents reverse recovery overlap with high-side switch, reducing cross-conduction loss and improving efficiency by ~0.5–1.2% vs. standard fast rectifiers.

Use Scenario: Output stage in low-power solar microinverters or UPS inverters converting 12–48 V DC to 120/230 V AC.

IC Role / Device Role / Timing Role: Unidirectional current path in H-bridge freewheeling legs; clamps inductive kickback during PWM dead-time.

Use Value: 400 V V_RRM and 30 A I_FSM support 300 V DC-link operation with margin for voltage spikes, enabling reliable 100–200 W output staging.

Freewheeling Diodes

Industrial Power Supplies

Use Scenario: Inductive load snubbing in relay drivers, solenoid controllers, and motor gate-drive circuits.

IC Role / Device Role / Timing Role: Provides low-impedance return path for stored inductor energy during switch turn-off.

Use Value: 1.30 V V_F limits power dissipation to <1.3 W at 1 A, allowing compact layout without forced air cooling in enclosed enclosures.

Use Scenario: Input rectification and hold-up smoothing in DIN-rail mounted 24 V industrial PSUs.

IC Role / Device Role / Timing Role: Primary AC input rectifier in voltage-doubler or bridge configuration feeding bulk capacitor.

Use Value: TS-1 package with JESD201 Class 2 whisker resistance and –55°C to +150°C T_J rating ensures long-term reliability in unventilated control cabinets.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R04	V_RRM = 400 V, t_rr = 30 ns, V_F = 1.35 V @ 1 A - slightly faster but higher VF	Same TS-1 footprint; marginally higher conduction loss at high duty cycles	Prefer when t_rr < 30 ns is critical and thermal headroom allows 0.05 V higher VF
ES1J	V_RRM = 600 V, t_rr = 35 ns, V_F = 1.7 V @ 1 A - higher voltage rating, higher VF	Compatible pinout; less efficient at 1 A due to 0.4 V higher forward drop	Select only if system requires >400 V blocking or legacy design reuse of ES1J footprint

Compared with STTH1R04 and ES1J, the SFT16G delivers optimal balance of 400 V rating, 35 ns recovery, and 1.30 V forward voltage - making it preferred for thermally constrained 1 A DC-DC outputs where efficiency and EMI must be jointly optimized.

Availability

SFT16G is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply with consistent TS-1 packaging and AEC-Q101 qualification readiness.

Supply support for SFT16G 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, and MOSFETs for industrial and automotive markets.

The SFT16G belongs to TSC's SFT1xG super fast rectifier family, engineered specifically for high-efficiency, high-reliability switching power conversion in space- and thermal-constrained applications.

FAQ

What is the maximum junction temperature rating for the SFT16G?

The SFT16G has a maximum junction temperature (T_J) rating of +150°C, with operational range from –55°C to +150°C. This allows deployment in sealed industrial enclosures or under-hood automotive environments where ambient temperatures exceed 85°C, provided power dissipation remains within thermal limits defined by R_θJA = 100 °C/W. The SFT16G maintains specified electrical performance across this full range.

Does the SFT16G meet automotive qualification standards?

The base SFT16G is not AEC-Q101 qualified, but the SFT16GH variant - identical in all electrical and mechanical specifications except for added qualification testing - is fully AEC-Q101 compliant. Customers requiring automotive-grade reliability must specify SFT16GH; the SFT16G itself is intended for industrial and commercial power applications where extended temperature and surge robustness are required but formal automotive qualification is not mandated.

What is the reverse recovery time (t_rr) of the SFT16G and how is it measured?

The SFT16G has a 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 using standard double-pulse test methodology. This value is confirmed across the full operating temperature range and directly impacts switching loss and EMI in high-frequency converters - a key differentiator versus standard fast recovery diodes with t_rr > 50 ns.

Can the SFT16G replace a standard FR107 diode in an existing design?

The SFT16G can replace FR107 in many cases due to identical TS-1 package, 1 A current rating, and comparable 400 V V_RRM, but its 35 ns t_rr is significantly faster than FR107's ~500 ns - which may cause unexpected ringing or shoot-through if gate drive dead-time is not adjusted. Also, SFT16G's lower V_F (1.30 V vs. ~1.5 V) reduces conduction loss but alters thermal distribution. Validation of timing margins and thermal performance is required before drop-in replacement.

What is the junction capacitance (C_J) of the SFT16G and why does it matter?

The SFT16G exhibits a junction capacitance (C_J) of 10 pF at 1 MHz and 4.0 V reverse bias. This low capacitance minimizes displacement current during voltage transitions, reducing EMI generation and dynamic switching losses - especially critical in high-frequency DC-DC converters (>200 kHz) and noise-sensitive applications like medical or audio power supplies. It also lowers capacitive loading on driving circuits compared to diodes with C_J > 20 pF.

SFT16G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: T-18, Axial

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 1 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TS-1

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

SFT16G FAQ

1.How can I place an order for SFT16G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFT16G 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 SFT16G reliable?

The price and inventory of SFT16G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT16G is usually 5 days.

3.What payment methods are accepted for SFT16G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT16G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFT16G?

SFT16G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFT16G 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 SFT16G?

For technical support, including SFT16G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT16G requirements.

6.How does Aetrix verify that SFT16G is sourced from the original manufacturer or authorized distributors?

All SFT16G 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 SFT16G meets industry standards.

7.What is the process for return or replacement of SFT16G?

All SFT16G units undergo pre-shipment inspection (PSI). If there is an issue with SFT16G, 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 SFT16G part is unused and in its original packaging.

Return procedure for SFT16G:

1.Submit a request within 90 days.

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

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