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Taiwan Semiconductor Corporation S2GFL
- Part No.:
- S2GFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
S2GFL.pdf
- Description:
- 2A, 400V, STANDARD RECOVERY RECT
- Quantity:
- Payment:
- Shipping:
Inventory:9,891
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Product details
Overview
S2GFL from Taiwan Semiconductor is a 2 A, 400 V standard surface-mount silicon rectifier diode in SOD-123FL package, featuring glass-passivated junction, low reverse leakage (≤5 µA at 25°C), and 81 °C/W junction-to-lead thermal resistance - used in DC-DC converters and switching-mode power supplies.
For engineers reviewing the S2GFL datasheet, S2GFL pinout, S2GFL application, or S2GFL equivalent, key selection criteria include repetitive peak reverse voltage (400 V), forward voltage (0.97 V max at 2 A, 25°C), surge current capability (40 A @ 8.3 ms), thermal performance on PCB, and RoHS/halogen-free compliance for industrial power conversion designs.
Technical Context
The S2GFL is a single-die, unidirectional standard recovery rectifier with cathode-band polarity indication and matte tin-plated leads compliant with J-STD-002 solderability. Its glass-passivated junction ensures stable reverse characteristics across temperature.
Designed for automated placement (MSL Level 1), it operates over –55°C to +150°C junction range and delivers 100 A non-repetitive surge current at 1.0 ms, supporting robust transient handling in compact SMPS layouts with 5 mm × 5 mm Cu pad thermal reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/clamp circuits |
| IF | 2 A continuous - Rated average forward current at 75°C ambient on standard PCB; determines steady-state power handling |
| IFSM (8.3 ms) | 40 A - Non-repetitive surge rating; supports inrush and fault-current tolerance in AC-DC front ends |
| VF @ 2 A, 25°C | 0.97 V max - Forward conduction loss directly impacts efficiency and thermal rise in high-duty-cycle operation |
| IR @ 400 V, 25°C | 5 µA max - Low leakage preserves hold-up time and reduces standby power in offline converters |
| RθJL | 81 °C/W - Junction-to-lead thermal resistance enables accurate thermal modeling when mounted on copper pads |
| Junction Temp Range | –55°C to +150°C - Specifies full operational envelope for automotive under-hood or industrial control environments |
Pinout & Package
Package: SOD-123FL - Surface-mount plastic case with gull-wing leads, UL 94V-0 rated molding compound, 0.016 g weight, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; ties to output rail or filter capacitor positive; blocks 400 V reverse voltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable reverse leakage (<5 µA) and long-term reliability under humidity and thermal cycling |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility without dry-pack or baking requirements |
| Matte tin-plated leads | Guarantees solder wetting per J-STD-002, reducing voiding risk in automated assembly |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
Applications
| AC-DC Adapter Power Supply | Isolated DC-DC Converter Output Rectification |
|---|---|
Use Scenario: Secondary-side rectification in 5–24 W wall adapters with flyback topology. IC Role / Device Role / Timing Role: Standard recovery rectifier converting transformer AC output to regulated DC bus. Use Value: 0.97 V VF minimizes conduction loss at 2 A load; 400 V VRRM accommodates reflected voltage spikes in discontinuous conduction mode. | Use Scenario: Output stage rectification in isolated 12 V/2 A telecom DC-DC modules. IC Role / Device Role / Timing Role: Unidirectional current path delivering clean DC to downstream POL regulators. Use Value: Low 5 µA reverse leakage preserves light-load efficiency; SOD-123FL footprint enables high-density layout with minimal board area. |
| Industrial Motor Drive Control Board | LED Driver Auxiliary Power Supply |
Use Scenario: Snubber and clamp circuit rectification in 24 V BLDC gate driver power rails. IC Role / Device Role / Timing Role: Freewheeling path for inductive energy dissipation during MOSFET turn-off. Use Value: 100 A surge rating (1 ms) withstands repeated inductive kick events; 150°C TJMAX supports operation near heat-generating power stages. | Use Scenario: Auxiliary bias supply rectification in constant-current LED drivers with integrated PFC. IC Role / Device Role / Timing Role: Input rectifier feeding linear or buck regulator powering controller ICs. Use Value: Glass passivation ensures stable performance under high ambient temperature (>85°C) and humidity exposure typical in outdoor luminaires. |
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 MURS240T3G | Ultrafast recovery (trr = 75 ns vs. S2GFL's ~2 µs); higher VF (1.25 V @ 2 A) | Better EMI profile in high-frequency SMPS; less suitable for low-loss, low-cost 50–100 kHz designs | Choose MURS240T3G only if fast switching and reduced ringing are critical; otherwise S2GFL offers lower cost and lower conduction loss |
| Vishay VS-2EYH04-M3/5AT | Same VRRM (400 V), same IF (2 A), but SOD-123 package (not FL variant); RθJA = 130 °C/W (vs. 116 °C/W) | Compatible footprint but slightly inferior thermal performance on identical PCB layout | VS-2EYH04-M3/5AT is viable where legacy SOD-123 land pattern exists; S2GFL preferred for new designs needing optimal thermal margin |
Compared with MURS240T3G and VS-2EYH04-M3/5AT, the S2GFL delivers the lowest forward voltage among 400 V, 2 A SOD-123FL rectifiers, enabling higher efficiency in thermally constrained spaces while maintaining MSL Level 1 and halogen-free compliance without trade-offs in surge robustness or leakage.
Availability
S2GFL is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and general-purpose power rectification requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for S2GFL 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 S2GFL belongs to TSC's S2xFL standard rectifier family, engineered for cost-sensitive, high-volume power conversion applications where reliability, thermal efficiency, and automated assembly compatibility are prioritized over ultrafast switching.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the S2GFL?
The S2GFL has a VRRM of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2103). This rating defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions and must not be exceeded in circuit design.
Does the S2GFL have a specified forward voltage at 2 A and 125°C?
Yes - the S2GFL's forward voltage is specified as 0.90 V (typical) and ≤1.00 V (maximum) at IF = 2 A and TJ = 125°C. This value is critical for thermal design validation in high-ambient-temperature applications such as enclosed LED drivers or industrial controls where junction heating significantly affects conduction loss.
Is the S2GFL RoHS and halogen-free compliant?
Yes - the S2GFL meets EU RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This compliance supports environmental certification requirements for end products sold in Europe, North America, and Asia-Pacific markets.
What is the moisture sensitivity level (MSL) rating for the S2GFL?
The S2GFL carries an MSL Level 1 rating per J-STD-020, meaning it has unlimited floor life and may be subjected to standard reflow profiles without preconditioning or dry-pack requirements. This simplifies SMT line integration and eliminates baking steps in high-throughput manufacturing environments.
What does the marking code "S2GF" indicate on the S2GFL device body?
The marking code "S2GF" printed on the S2GFL case identifies it as the 400 V variant within the S2xFL family - "S2" denotes series, "G" corresponds to 400 V (per the VRRM table), and "F" indicates SOD-123FL packaging. This matches the ordering code S2GFL and confirms correct voltage binning and package type upon visual inspection.
S2GFL 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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 2 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
S2GFL FAQ
1.How can I place an order for S2GFL through Aetrix?
Please submit a Request for Quotation (RFQ) for S2GFL 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 S2GFL reliable?
The price and inventory of S2GFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S2GFL is usually 5 days.
3.What payment methods are accepted for S2GFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S2GFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S2GFL?
S2GFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S2GFL 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 S2GFL?
For technical support, including S2GFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S2GFL requirements.
6.How does Aetrix verify that S2GFL is sourced from the original manufacturer or authorized distributors?
All S2GFL 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 S2GFL meets industry standards.
7.What is the process for return or replacement of S2GFL?
All S2GFL units undergo pre-shipment inspection (PSI). If there is an issue with S2GFL, 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 S2GFL part is unused and in its original packaging.
Return procedure for S2GFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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