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

Taiwan Semiconductor Corporation SFT14GHA1G

Name: SFT14GHA1G
Brand: Taiwan Semiconductor Corporation
SKU: SFT14GHA1G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SFT14GHA1G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: T-18, Axial

Datasheet:: SFT14GHA1G.pdf

Description:: DIODE GEN PURP 200V 1A TS-1

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SFT14GHA1G from Taiwan Semiconductor is a 200V, 1A AEC-Q101-qualified super fast rectifier diode in TS-1 package, featuring 0.95V forward voltage at 1A/25°C, 35ns reverse recovery time, and 30A surge capability-used in automotive DC-DC converters and switching inverters.

For engineers reviewing the SFT14GHA1G datasheet, SFT14GHA1G pinout, SFT14GHA1G application, or SFT14GHA1G equivalent, key selection criteria include V_RRM = 200V, I_F = 1A, t_rr = 35ns, AEC-Q101 qualification, and TS-1 package compatibility with high-reliability power conversion designs.

Technical Context

This single-die super fast rectifier operates with low conduction loss (V_F ≤ 0.95V @ 1A, 25°C) and fast switching (t_rr ≤ 35ns), enabling high-efficiency operation in 50–500kHz switching topologies. Its 100°C/W junction-to-ambient thermal resistance and 150°C max junction temperature support sustained 1A continuous current under controlled PCB layout.

The TS-1 package provides pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance, while the cathode band marking ensures unambiguous polarity identification during automated assembly and field service.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - blocks up to 200V repetitive reverse voltage without breakdown
I_F	1 A - continuous average forward current rating at T_A = 25°C
t_rr	35 ns - enables efficient high-frequency switching with minimal switching loss
V_F	0.95 V @ 1A, 25°C - reduces conduction loss and thermal stress in power stage
I_FSM	30 A - withstands short-duration surge currents (8.3ms half-sine)
T_J max	150 °C - supports operation in under-hood automotive environments
C_J	20 pF @ 1MHz, 4V - limits capacitive coupling noise in high-dv/dt circuits

Pinout & Package

TS-1 package: molded epoxy case with axial leads, cathode indicated by band, RoHS/halogen-free, UL 94V-0 rated, 0.200g typical weight.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit; accepts 1A continuous forward current
Cathode	Forward current exit / reverse blocking terminal	Marked with band; sustains 200V reverse bias; critical for freewheeling path integrity

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47
Super fast recovery (t_rr ≤ 35ns)	Minimizes reverse recovery charge (Q_rr) and associated switching losses in SMPS
Low V_F (0.95V @ 1A)	Reduces power dissipation by ~15% vs. standard fast rectifiers at same current
TS-1 package with tin-plated leads	Ensures robust solder joint formation and long-term intermetallic stability per J-STD-002
High I_FSM/I_F ratio (30:1)	Provides margin against transient overcurrent events in motor drive and converter startup

Applications

Automotive DC-DC Converters	Switching Inverters
Use Scenario: 12V-to-48V bidirectional buck-boost converter in mild hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectification stage, conducting during low-side switch off-time. Use Value: 35ns t_rr prevents cross-conduction loss; AEC-Q101 qualification ensures 15-year under-hood reliability.	Use Scenario: Auxiliary power supply in on-board chargers using 100–200kHz hard-switched flyback topology. IC Role / Device Role / Timing Role: Output rectifier handling 1A continuous output with high dv/dt stress. Use Value: 200V V_RRM and 0.95V V_F jointly reduce conduction + switching loss, improving efficiency >92%.
Freewheeling in Motor Drives	Industrial SMPS Secondary Side
Use Scenario: Brushless DC motor control module with PWM-driven H-bridge and regenerative braking. IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM off-periods. Use Value: 30A I_FSM safely clamps energy from 10mH windings; low C_J (20pF) avoids gate ringing in adjacent MOSFETs.	Use Scenario: 24V/1A isolated output stage in DIN-rail mounted industrial power supply. IC Role / Device Role / Timing Role: Primary secondary-side rectifier operating continuously at full load. Use Value: TS-1 package allows through-hole reflow compatibility; 150°C T_J max supports derating-free operation at 70°C ambient.

Automotive DC-DC Converters

Switching Inverters

Use Scenario: 12V-to-48V bidirectional buck-boost converter in mild hybrid vehicles.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectification stage, conducting during low-side switch off-time.

Use Value: 35ns t_rr prevents cross-conduction loss; AEC-Q101 qualification ensures 15-year under-hood reliability.

Use Scenario: Auxiliary power supply in on-board chargers using 100–200kHz hard-switched flyback topology.

IC Role / Device Role / Timing Role: Output rectifier handling 1A continuous output with high dv/dt stress.

Use Value: 200V V_RRM and 0.95V V_F jointly reduce conduction + switching loss, improving efficiency >92%.

Freewheeling in Motor Drives

Industrial SMPS Secondary Side

Use Scenario: Brushless DC motor control module with PWM-driven H-bridge and regenerative braking.

IC Role / Device Role / Timing Role: Freewheeling path for inductive kickback during PWM off-periods.

Use Value: 30A I_FSM safely clamps energy from 10mH windings; low C_J (20pF) avoids gate ringing in adjacent MOSFETs.

Use Scenario: 24V/1A isolated output stage in DIN-rail mounted industrial power supply.

IC Role / Device Role / Timing Role: Primary secondary-side rectifier operating continuously at full load.

Use Value: TS-1 package allows through-hole reflow compatibility; 150°C T_J max supports derating-free operation at 70°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
STTH1R02AY	V_RRM = 200V, t_rr = 30ns, V_F = 0.92V @ 1A - slightly faster but no AEC-Q101 certification	Preferred for non-automotive industrial SMPS where qualification isn't required	Select when lowest possible t_rr is prioritized over automotive compliance
ON Semi MUR120G	V_RRM = 200V, t_rr = 35ns, V_F = 0.97V @ 1A - same speed, higher V_F, no AEC-Q101	Suitable for cost-sensitive consumer power adapters	Choose for legacy designs already qualified with MUR120G footprint

Compared with STTH1R02AY and MUR120G, SFT14GHA1G uniquely combines AEC-Q101 qualification, 0.95V V_F, and 35ns t_rr in TS-1 packaging-making it the only drop-in option for automotive-grade 200V rectification requiring both reliability and efficiency.

Availability

SFT14GHA1G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and freewheeling applications requiring stable component supply across extended temperature and lifetime requirements.

Supply support for SFT14GHA1G 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 automotive, industrial, and computing markets since 1979.

The SFT1xG family was designed specifically for high-reliability, high-frequency power conversion in automotive subsystems-emphasizing AEC-Q101 qualification, low-loss rectification, and robust thermal performance in compact TS-1 packaging.

FAQ

What is the peak repetitive reverse voltage rating for SFT14GHA1G?

The SFT14GHA1G has a peak repetitive reverse voltage (V_RRM) rating of 200 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version J2104), where SFT14G is explicitly assigned 200 V under the V_RRM column. It defines the maximum reverse-biased voltage the device can block repeatedly without breakdown.

Is SFT14GHA1G qualified to AEC-Q101 standards?

Yes, SFT14GHA1G is AEC-Q101 qualified. The "H" suffix in the part number denotes AEC-Q101 qualification, and the datasheet states "AEC-Q101 qualified available" under FEATURES. This includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per JESD47, confirming suitability for automotive under-hood applications.

What is the forward voltage of SFT14GHA1G at 1A and 25°C?

The forward voltage (V_F) of SFT14GHA1G is 0.95 V at I_F = 1 A and T_J = 25°C. This value is specified in the Electrical Specifications table under "SFT14G" row, with test condition "IF = 1A, TJ = 25°C". It reflects low conduction loss critical for thermal management in compact power designs.

What package type does SFT14GHA1G use, and what are its key mechanical attributes?

SFT14GHA1G uses the TS-1 package: an axial-leaded, molded epoxy case with UL 94V-0 flammability rating, pure tin-plated leads (J-STD-002 compliant), and cathode polarity marked by a band. Its typical weight is 0.200 g, and it meets JESD201 Class 2 whisker resistance-ensuring reliable solder joints in automotive and industrial reflow processes.

What is the reverse recovery time (t_rr) specification for SFT14GHA1G?

The reverse recovery time (t_rr) for SFT14GHA1G is 35 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is listed in the Electrical Specifications table under "Reverse recovery time" for SFT11G–SFT14G variants. It enables efficient operation in 100–500 kHz switching converters with minimal switching loss.

Does SFT14GHA1G have a specified junction-to-ambient thermal resistance?

Yes, SFT14GHA1G has a junction-to-ambient thermal resistance (R_θJA) of 100 °C/W, as stated in the Thermal Performance section of the datasheet. This value applies under standard JEDEC test conditions (single device on 1-inch² FR-4 board with 2 oz copper) and is essential for calculating maximum allowable power dissipation at given ambient temperatures.

SFT14GHA1G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: T-18, Axial

Packaging:: Tape & Box (TB)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

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

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Through Hole

Supplier Device Package:: TS-1

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

SFT14GHA1G FAQ

1.How can I place an order for SFT14GHA1G through Aetrix?

Please submit a Request for Quotation (RFQ) for SFT14GHA1G 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 SFT14GHA1G reliable?

The price and inventory of SFT14GHA1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SFT14GHA1G is usually 5 days.

3.What payment methods are accepted for SFT14GHA1G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SFT14GHA1G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SFT14GHA1G?

SFT14GHA1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SFT14GHA1G 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 SFT14GHA1G?

For technical support, including SFT14GHA1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SFT14GHA1G requirements.

6.How does Aetrix verify that SFT14GHA1G is sourced from the original manufacturer or authorized distributors?

All SFT14GHA1G 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 SFT14GHA1G meets industry standards.

7.What is the process for return or replacement of SFT14GHA1G?

All SFT14GHA1G units undergo pre-shipment inspection (PSI). If there is an issue with SFT14GHA1G, 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 SFT14GHA1G part is unused and in its original packaging.

Return procedure for SFT14GHA1G:

1.Submit a request within 90 days.

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

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