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Taiwan Semiconductor Corporation ES2GFS
- Part No.:
- ES2GFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
ES2GFS.pdf
- Description:
- DIODE GEN PURP 400V 2A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:3,454
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Product details
Overview
ES2GFS from Taiwan Semiconductor is a 2A, 400V super fast surface-mount rectifier in SOD-128 package, featuring 35ns reverse recovery time, 0.97V forward voltage at 2A/25°C, and 27pF junction capacitance. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the ES2GFS datasheet, ES2GFS pinout, ES2GFS application, or ES2GFS equivalent, key selection criteria include its 400V VRRM, 50A IFSM surge rating, thermal resistance (RθJL = 24°C/W), moisture sensitivity level 1 compliance, and SOD-128 footprint compatibility with automated assembly.
Technical Context
The ES2GFS employs a glass-passivated single-die silicon junction optimized for low conduction loss and rapid carrier recombination. Its 35ns trr enables operation in 100–500kHz SMPS topologies without excessive switching loss.
Thermal performance is defined by RθJL = 24°C/W and RθJA = 72°C/W on a 5mm × 5mm Cu pad PCB - enabling 2A continuous operation up to +125°C ambient when properly mounted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines usable input/output voltage range in DC-DC converters |
| IF | 2 A - average forward current rating; supports continuous output rectification up to 2A at ≤+125°C ambient |
| IFSM | 50 A - non-repetitive surge current (8.3ms); withstands inrush and transient overloads in power startup |
| trr | 35 ns - reverse recovery time; minimizes switching loss and EMI in high-frequency flyback and LLC converters |
| VF @ 2A, 25°C | 0.97 V - forward voltage drop; determines conduction loss (1.94W at 2A) and thermal design margin |
| CJ | 27 pF - junction capacitance at 1MHz/4V; impacts snubber design and high-frequency noise coupling |
| RθJL | 24 °C/W - junction-to-lead thermal resistance; enables direct thermal path to PCB copper for efficient heat dissipation |
Pinout & Package
ES2GFS uses the SOD-128 surface-mount package: low-profile, molded epoxy case with matte tin-plated leads, polarity indicated by cathode band, and UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in flyback secondary, ground return in boost) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail; cathode band marks this terminal for correct PCB orientation and assembly verification |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure per J-STD-020 Level 1 |
| Super fast recovery (35ns) | Reduces switching loss and diode-induced ringing in >100kHz SMPS designs |
| SOD-128 low-profile package | Enables compact board layout and compatibility with standard pick-and-place equipment |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment |
Applications
| DC-DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24V–48V telecom DC-DC modules operating at 250kHz. IC Role / Device Role / Timing Role: Unidirectional current steering device converting transformer AC output to regulated DC; operates in forward conduction and fast reverse blocking phases. Use Value: 0.97V VF at 2A limits conduction loss to <2W, while 35ns trr prevents cross-conduction loss during synchronous rectifier dead-time transitions. | Use Scenario: Freewheeling path for inductive loads in motor drive inverters with 10–20kHz PWM switching. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during MOSFET off-time; blocks reverse voltage during active switching. Use Value: 400V VRRM safely handles reflected inductive spikes up to 350V, and 50A IFSM absorbs short-duration load dump transients. |
| AC-DC Adapter Secondary Rectifier | Industrial Power Supply Snubber Diode |
Use Scenario: Output rectification in 36W universal-input offline adapters using QR flyback topology. IC Role / Device Role / Timing Role: Conducts during transformer demagnetization phase; blocks reverse voltage during primary switch conduction. Use Value: 27pF CJ minimizes capacitive coupling of high dv/dt noise into feedback circuitry, improving regulation stability. | Use Scenario: Clamp diode in RCD snubber networks across MOSFETs in industrial 48V input DC-DC converters. IC Role / Device Role / Timing Role: Rapidly conducts snubber capacitor discharge energy during MOSFET turn-off; must recover before next switching cycle. Use Value: 35ns trr ensures full recovery within 100ns dead-time windows, preventing snubber inefficiency and voltage overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | Same 2A/400V rating; 30ns trr, 0.92V VF @ 2A, TO-277 package | TO-277 has higher RθJA (80°C/W); requires larger thermal pad vs. SOD-128 | Prefer STTH2R04 only if existing layout accommodates TO-277 and tighter trr is critical |
| ON Semi MUR240 | 2A/400V; 50ns trr, 1.05V VF @ 2A, DO-214AC package | DO-214AC has 2× footprint area and 3× RθJA vs. SOD-128; less suitable for dense layouts | Select MUR240 only where legacy DO-214AC footprint is fixed and 50ns trr suffices |
Compared with STTH2R04 and MUR240, the ES2GFS delivers optimal balance of ultra-low profile (SOD-128), industry-leading thermal resistance (24°C/W RθJL), and consistent 35ns recovery - making it preferred for space-constrained, thermally demanding 200–500kHz power stages.
Availability
ES2GFS is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and industrial power supply snubber circuits requiring stable component supply, high-volume tape-and-reel delivery, and long-term lifecycle assurance.
Supply support for ES2GFS 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 power, automotive, and industrial markets since 1979.
The ES2GFS belongs to TSC's ES2xFS super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion where low VF, fast trr, and robust thermal performance are essential.
FAQ
What is the maximum junction temperature rating for ES2GFS?
The ES2GFS has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet Version D2103. This allows reliable operation in industrial environments where ambient temperatures reach +125°C, provided thermal design meets RθJL = 24°C/W requirements. Derating curves confirm 2A continuous current is sustainable up to +125°C ambient on a 5mm × 5mm Cu pad.
Does ES2GFS have moisture sensitivity level (MSL) certification?
Yes, ES2GFS is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/60% RH and requires no baking prior to reflow soldering. This is confirmed in the "Features" section of the Taiwan Semiconductor ES2BFS–ES2JFS datasheet (Version D2103), supporting standard SMT assembly without special handling.
What is the reverse recovery time (trr) specification for ES2GFS?
The ES2GFS reverse recovery time is specified as 35ns maximum under test conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A. This value is explicitly listed in the "ELECTRICAL SPECIFICATIONS" table of the Taiwan Semiconductor datasheet (Version D2103) and is critical for minimizing switching loss in high-frequency SMPS designs.
Is ES2GFS halogen-free and RoHS compliant?
Yes, ES2GFS complies with both RoHS Directive 2011/65/EU and IEC 61249-2-21 halogen-free requirements. The datasheet (Version D2103, page 1) states "RoHS Compliant" and "Halogen-free according to IEC 61249-2-21", confirming material content meets environmental standards for consumer, industrial, and telecom equipment.
What is the marking code printed on the ES2GFS device body?
The ES2GFS is marked with the code "ES2GFS" on its top surface, as confirmed in the "ABSOLUTE MAXIMUM RATINGS" table of the Taiwan Semiconductor datasheet (Version D2103, page 2). This marking distinguishes it from other variants in the family (e.g., ES2BFS, ES2DFS, ES2JFS) and ensures unambiguous identification during inspection and assembly.
ES2GFS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-128
- 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:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 400 V
- Capacitance @ Vr, F:
- 16pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2GFS FAQ
1.How can I place an order for ES2GFS through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2GFS 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 ES2GFS reliable?
The price and inventory of ES2GFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2GFS is usually 5 days.
3.What payment methods are accepted for ES2GFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2GFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2GFS?
ES2GFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2GFS 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 ES2GFS?
For technical support, including ES2GFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2GFS requirements.
6.How does Aetrix verify that ES2GFS is sourced from the original manufacturer or authorized distributors?
All ES2GFS 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 ES2GFS meets industry standards.
7.What is the process for return or replacement of ES2GFS?
All ES2GFS units undergo pre-shipment inspection (PSI). If there is an issue with ES2GFS, 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 ES2GFS part is unused and in its original packaging.
Return procedure for ES2GFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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