Taiwan Semiconductor Corporation ES1GFL
- Part No.:
- ES1GFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
ES1GFL.pdf
- Description:
- 35NS, 1A, 400V, SUPER FAST RECOV
- Quantity:
- Payment:

- Shipping:

Inventory:8,179
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Product details
Overview
ES1GFL from Taiwan Semiconductor is a 1A, 400V super fast surface-mount rectifier in SOD-123FL package, featuring 1.3V forward voltage at 1A and 35ns reverse recovery time. It serves as a freewheeling or output rectifier in high-frequency switching power supplies with low conduction loss and minimal switching loss.
For engineers reviewing the ES1GFL datasheet, ES1GFL pinout, ES1GFL application, or ES1GFL equivalent, key selection criteria include repetitive peak reverse voltage (400V), forward voltage drop (1.3V @ 1A), reverse recovery time (35ns), thermal resistance (RθJL = 35°C/W), and SOD-123FL footprint compatibility with automated placement.
Technical Context
The ES1GFL employs a glass-passivated silicon junction optimized for high-speed switching, enabling efficient operation in DC-DC converters and SMPS where rapid turn-off minimizes tail current and reduces switching losses. Its single-die configuration and low-profile SOD-123FL package support compact board layouts and thermal management via lead conduction.
With a maximum junction temperature of 150°C and moisture sensitivity level 1 (per J-STD-020), the ES1GFL supports reflow soldering without baking. Its 8pF junction capacitance at 4V reverse bias and 5µA leakage at 25°C ensure stable performance in high-frequency rectification and snubberless flyback designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage before breakdown; sets safe operating limit in 375–400V DC bus applications |
| VF @ 1A, 25°C | 1.3 V - Forward conduction loss determines I²R heating and efficiency in continuous 1A output paths |
| trr | 35 ns - Fast recovery enables use in >100 kHz switching topologies without excessive switching loss or EMI |
| IFSM | 30 A - Peak surge rating supports inrush current handling during startup or transient overload events |
| RθJL | 35 °C/W - Junction-to-lead thermal resistance defines heat transfer path to PCB copper; critical for thermal design in sealed enclosures |
| CJ @ 4V | 8 pF - Low junction capacitance minimizes capacitive coupling and improves high-frequency noise immunity |
Pinout & Package
Package: SOD-123FL - Low-profile, surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Weight: 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band identifies this terminal for correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| 35 ns reverse recovery time | Reduces switching loss and diode-induced ringing in high-frequency flyback and LLC resonant converters |
| SOD-123FL footprint | Enables direct replacement of legacy SOD-123 rectifiers while supporting higher surge and faster recovery |
| Moisture sensitivity level 1 | Allows standard reflow without pre-bake, reducing manufacturing complexity and cost in high-volume SMT lines |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 12V/24V DC-DC modules delivering up to 1A continuous load. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 1.3V VF limits conduction loss to <1.3W at full load; 35ns trr prevents reverse recovery shoot-through in synchronous designs. | Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or solenoids) in half-bridge inverters. IC Role / Device Role / Timing Role: Clamp diode providing low-impedance return path during switch off-time to suppress voltage spikes. Use Value: 400V VRRM withstands reflected inductive kick-up to 350V; 30A IFSM handles short-duration back-EMF surges. |
| AC-DC Adapter Secondary Rectification | USB PD Power Delivery Output Stage |
Use Scenario: Output rectification in compact 5–20W offline adapters using QR flyback topology. IC Role / Device Role / Timing Role: High-efficiency rectifier replacing slower 1N400x series in space-constrained adapters. Use Value: SOD-123FL footprint fits tight layouts; 1.3V VF improves light-load efficiency over Schottky alternatives with higher leakage. | Use Scenario: Secondary-side synchronous rectifier auxiliary clamp or hold-up diode in multi-port USB PD 3.0/3.1 designs. IC Role / Device Role / Timing Role: Standby-path diode ensuring stable 5–20V output during protocol negotiation or fault isolation. Use Value: 5µA IR at 25°C ensures negligible standby drain; RoHS/halogen-free compliance meets end-product environmental requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR140 | 400V VRRM, 1.3V VF @ 1A, but TO-220AC package (larger, through-hole) | Requires PCB redesign and wave-solder process; unsuitable for high-density SMT layouts | Select when higher thermal mass or heatsink mounting is needed; not drop-in for SOD-123FL footprint |
| Vishay VS-ES1G-M3/5BT | Identical 400V/1A rating, 35ns trr, same SOD-123FL package and cathode marking | No layout or assembly change required; validated for same reflow profiles and moisture sensitivity level | Preferred for dual-sourcing where identical mechanical and electrical behavior is required |
Compared with MUR140 and VS-ES1G-M3/5BT, the ES1GFL offers SMT compatibility and J-STD-020 Level 1 handling out-of-box, while matching Vishay's performance exactly and differing from ON Semi's part only in package form factor and thermal interface.
Availability
ES1GFL is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for ES1GFL 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 industrial, computing, and consumer markets since 1979.
The ES1GFL belongs to TSC's ES1xFL super fast rectifier family, engineered specifically for high-frequency switching power conversion where low VF, fast trr, and robust SMT packaging are essential.
FAQ
What is the maximum repetitive peak reverse voltage rating for ES1GFL?
The ES1GFL has a maximum repetitive peak reverse voltage (VRRM) of 400 V. This rating defines the highest reverse-biased voltage the device can block continuously without avalanche breakdown. It is verified per JEDEC test conditions and applies across the full operating temperature range of –55°C to +150°C. Designers must ensure system-level reverse transients do not exceed this value to maintain reliable operation of the ES1GFL.
What is the forward voltage drop of ES1GFL at 1A and 25°C?
The forward voltage drop (VF) of the ES1GFL is specified as a maximum of 1.3 V at 1 A forward current and 25°C junction temperature. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating. At elevated temperatures or higher currents, VF decreases slightly due to negative temperature coefficient, but system-level thermal design must account for worst-case conduction loss using the 1.3 V max value for the ES1GFL.
Does ES1GFL have a defined reverse recovery time, and how is it measured?
Yes, the ES1GFL has a typical reverse recovery time (trr) of 35 ns. It is measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per JEDEC JESD24-11. This parameter reflects the time required for minority carriers to clear after forward conduction ceases, directly impacting switching loss and EMI in high-frequency circuits using the ES1GFL as a rectifier or freewheeling diode.
What package type does ES1GFL use, and what are its key mechanical attributes?
The ES1GFL uses the SOD-123FL surface-mount package. Key attributes include matte tin-plated leads compliant with J-STD-002, UL 94V-0 flammability-rated molding compound, cathode band polarity marking, and moisture sensitivity level 1 per J-STD-020. Its compact dimensions (approx. 2.7 × 1.6 × 1.0 mm) and 0.016 g weight support high-density automated assembly without pre-bake, making the ES1GFL ideal for space-constrained power stages.
Is ES1GFL RoHS and halogen-free compliant?
Yes, the ES1GFL is RoHS compliant and halogen-free in accordance with IEC 61249-2-21. Taiwan Semiconductor certifies that all homogeneous materials in the ES1GFL contain less than 900 ppm bromine and 900 ppm chlorine, and meet EU Directive 2011/65/EU requirements. This compliance is documented in TSC's material declarations and applies to all production lots of the ES1GFL shipped from the factory.
ES1GFL 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:
- 1.3 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:
- 8pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1GFL FAQ
1.How can I place an order for ES1GFL through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1GFL 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 ES1GFL reliable?
The price and inventory of ES1GFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1GFL is usually 5 days.
3.What payment methods are accepted for ES1GFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1GFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1GFL?
ES1GFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1GFL 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 ES1GFL?
For technical support, including ES1GFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1GFL requirements.
6.How does Aetrix verify that ES1GFL is sourced from the original manufacturer or authorized distributors?
All ES1GFL 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 ES1GFL meets industry standards.
7.What is the process for return or replacement of ES1GFL?
All ES1GFL units undergo pre-shipment inspection (PSI). If there is an issue with ES1GFL, 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 ES1GFL part is unused and in its original packaging.
Return procedure for ES1GFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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