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

Taiwan Semiconductor Corporation S1GFL

Name: S1GFL
Brand: Taiwan Semiconductor Corporation
SKU: S1GFL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1GFL

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123F

Datasheet:: S1GFL.pdf

Description:: 1A, 400V, STANDARD RECOVERY RECT

Quantity:: RFQ Add To RFQ list

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Inventory:12,267

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Product details

Overview

S1GFL from Taiwan Semiconductor is a 1A, 400V standard surface-mount silicon rectifier diode in SOD-123FL package, featuring glass-passivated junction, 30A peak surge current capability, and 1.1V max forward voltage at 1A/25°C - used in DC-DC converters and switching-mode power supplies.

For engineers reviewing the S1GFL datasheet, S1GFL pinout, S1GFL application, or S1GFL equivalent, key selection criteria include repetitive peak reverse voltage (400V), thermal resistance (R_θJA = 85°C/W), junction temperature range (–55°C to +150°C), and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

The S1GFL is a single-die, unidirectional standard recovery rectifier optimized for general-purpose AC-to-DC and DC-DC conversion. Its 400V V_RRM, 1A average forward current rating, and 30A I_FSM support robust operation under transient overloads in compact power stages.

Thermally, it uses a SOD-123FL package with matte tin-plated leads and achieves R_θJL = 25°C/W and R_θJA = 85°C/W. Reverse leakage remains ≤1µA at 25°C and ≤50µA at 125°C under rated VR, ensuring stable blocking performance across temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - maximum repetitive reverse voltage the device blocks without breakdown
I_F	1 A - continuous average forward current rating at T_A = 75°C (derates above)
I_FSM	30 A - non-repetitive peak surge current (8.3 ms half-sine) for transient overload handling
V_F (max)	1.1 V @ 1 A, 25°C - low conduction loss enabling higher efficiency in low-voltage output stages
T_J (max)	+150°C - maximum junction temperature defining thermal design margin for PCB layout and heatsinking
C_J	7 pF @ 1 MHz, 4 V - low junction capacitance minimizing high-frequency switching noise and EMI

Pinout & Package

Package: SOD-123FL - surface-mount, molded plastic case with cathode band polarity marking, UL 94V-0 rated, 0.016g weight, JESD201 Class 1A whisker resistant, moisture sensitivity level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of AC input or switch node; requires adequate copper area for thermal dissipation
Cathode	Forward current exit / reverse-blocking terminal	Marked by band; connects to output rail or ground return; defines direction of rectification flow

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and humidity resistance in unsealed industrial environments
Low V_F (≤1.1 V)	Reduces conduction losses and self-heating in 1A continuous applications like auxiliary supplies
30A I_FSM	Withstands inrush and fault currents in offline SMPS without catastrophic failure
SOD-123FL footprint	Enables automated pick-and-place assembly and supports high-density board layouts

Applications

DC-DC Converter	Switching Mode Inverter
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 3.3–24 V outputs. IC Role / Device Role / Timing Role: Standard recovery rectifier converting high-frequency transformer output to regulated DC. Use Value: 1.1 V V_F minimizes power loss at 1A load; 400V V_RRM provides sufficient margin for reflected transients.	Use Scenario: Freewheeling or output rectification in motor drive inverters operating below 400V bus. IC Role / Device Role / Timing Role: Unidirectional current path for inductive kickback energy recovery and DC link smoothing. Use Value: 30A I_FSM handles short-circuit surges; SOD-123FL allows dense gate-driver board integration.
AC-DC Adapter	Industrial Power Supply
Use Scenario: Input bridge or output rectification in compact wall adapters up to 15W. IC Role / Device Role / Timing Role: Discrete rectifying element replacing larger DO-214AA parts where space is constrained. Use Value: RoHS/halogen-free compliance meets global safety standards; MSL Level 1 enables standard reflow without baking.	Use Scenario: Auxiliary bias supply rectification in programmable logic controllers and sensor interface modules. IC Role / Device Role / Timing Role: General-purpose rectifier for low-current control rails (e.g., 5V, 12V, 24V). Use Value: –55°C to +150°C T_J range ensures operation in extended-temperature enclosures; 85°C/W R_θJA guides minimal copper pour requirements.

DC-DC Converter

Switching Mode Inverter

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 3.3–24 V outputs.

IC Role / Device Role / Timing Role: Standard recovery rectifier converting high-frequency transformer output to regulated DC.

Use Value: 1.1 V V_F minimizes power loss at 1A load; 400V V_RRM provides sufficient margin for reflected transients.

Use Scenario: Freewheeling or output rectification in motor drive inverters operating below 400V bus.

IC Role / Device Role / Timing Role: Unidirectional current path for inductive kickback energy recovery and DC link smoothing.

Use Value: 30A I_FSM handles short-circuit surges; SOD-123FL allows dense gate-driver board integration.

AC-DC Adapter

Industrial Power Supply

Use Scenario: Input bridge or output rectification in compact wall adapters up to 15W.

IC Role / Device Role / Timing Role: Discrete rectifying element replacing larger DO-214AA parts where space is constrained.

Use Value: RoHS/halogen-free compliance meets global safety standards; MSL Level 1 enables standard reflow without baking.

Use Scenario: Auxiliary bias supply rectification in programmable logic controllers and sensor interface modules.

IC Role / Device Role / Timing Role: General-purpose rectifier for low-current control rails (e.g., 5V, 12V, 24V).

Use Value: –55°C to +150°C T_J range ensures operation in extended-temperature enclosures; 85°C/W R_θJA guides minimal copper pour requirements.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR140	400V V_RRM, 1A I_F, but ultrafast recovery (t_rr ≈ 50 ns vs. S1GFL's ~1.5 µs); TO-220AC package	Higher switching frequency suitability; unsuitable for space-constrained SMT layouts	Select MUR140 only when fast recovery is required and through-hole mounting is acceptable
Vishay VS-1EWH04-M3	400V V_RRM, 1A I_F, SOD-123FL package, but VF = 1.15 V (max) and I_FSM = 25 A	Slightly higher conduction loss and lower surge tolerance; identical footprint	VS-1EWH04-M3 is a drop-in physical replacement but requires verification of surge margin in high-transient environments

Compared with MUR140 and VS-1EWH04-M3, the S1GFL offers superior surge robustness (30A vs. 25A/-) in the same SOD-123FL footprint, while maintaining lower V_F than Vishay's variant - making it optimal for cost-sensitive, thermally constrained 1A rectification where standard recovery suffices.

Availability

S1GFL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial auxiliary power supplies requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for S1GFL 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 industrial, computing, and consumer markets since 1979.

The S1GFL belongs to TSC's S1xFL standard rectifier family, designed specifically for cost-effective, high-reliability AC/DC and DC/DC power conversion in space-constrained surface-mount applications.

FAQ

What is the maximum junction temperature rating for the S1GFL?

The S1GFL has a maximum junction temperature (T_J) rating of +150°C, with an operational range from –55°C to +150°C. This specification defines the upper thermal limit for safe continuous operation and must be respected in PCB thermal design. Derating curves in the S1GFL datasheet show allowable forward current reduction above ambient temperatures - critical for sustained 1A loads in enclosed industrial environments.

Does the S1GFL have a specified reverse recovery time (t_rr)?

No, the S1GFL datasheet does not specify reverse recovery time (t_rr). It is classified as a standard recovery rectifier, with typical t_rr in the microsecond range (~1.5 µs per characterization curves). For designs requiring fast or ultrafast recovery (e.g., >100 kHz switching), engineers should verify timing behavior experimentally or select a documented fast-recovery alternative such as the MUR140 when using the S1GFL.

What does the marking code "SGF" indicate on the S1GFL device body?

The marking code "SGF" laser-etched on the S1GFL case identifies it as the 400V variant within the S1xFL family. Per TSC documentation, "SGF" corresponds exclusively to S1GFL (V_RRM = 400V), distinguishing it from S1JFL ("SJF", 600V) and S1MFL ("SMF", 1000V). This marking is used for visual identification and traceability during assembly and field service.

Is the S1GFL suitable for use in automotive applications?

The S1GFL is not qualified to AEC-Q101 or automotive-grade reliability standards. While its –55°C to +150°C junction temperature range overlaps with some automotive ambient conditions, Taiwan Semiconductor explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications" - and automotive powertrain or safety-critical systems fall under this exclusion. Use in infotainment or body electronics requires full qualification per customer requirements.

What is the moisture sensitivity level (MSL) and reflow profile guidance for the S1GFL?

The S1GFL has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it is not moisture-sensitive and may be stored indefinitely at ambient conditions without baking prior to reflow. It supports standard Pb-free reflow profiles (peak temperature ≤260°C), and its matte tin-plated leads meet solderability requirements per J-STD-002 - enabling compatibility with automated SMT lines without special handling.

S1GFL Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123F

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:: 1.1 V @ 1 A

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

Capacitance @ Vr, F:: 7pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123FL

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

S1GFL FAQ

1.How can I place an order for S1GFL through Aetrix?

Please submit a Request for Quotation (RFQ) for S1GFL 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 S1GFL reliable?

The price and inventory of S1GFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1GFL is usually 5 days.

3.What payment methods are accepted for S1GFL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1GFL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1GFL?

S1GFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1GFL 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 S1GFL?

For technical support, including S1GFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1GFL requirements.

6.How does Aetrix verify that S1GFL is sourced from the original manufacturer or authorized distributors?

All S1GFL 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 S1GFL meets industry standards.

7.What is the process for return or replacement of S1GFL?

All S1GFL units undergo pre-shipment inspection (PSI). If there is an issue with S1GFL, 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 S1GFL part is unused and in its original packaging.

Return procedure for S1GFL:

1.Submit a request within 90 days.

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

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