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Taiwan Semiconductor Corporation ES1GFS
- Part No.:
- ES1GFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
ES1GFS.pdf
- Description:
- DIODE GEN PURP 400V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:6,478
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Product details
Overview
ES1GFS from Taiwan Semiconductor is a 1A, 400V super fast surface-mount rectifier in SOD-128 package, featuring 35ns reverse recovery time, 0.93V forward voltage at 1.0A/25°C, and 16pF junction capacitance. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters requiring low conduction loss and fast switching.
For engineers reviewing the ES1GFS datasheet, ES1GFS pinout, ES1GFS application, or ES1GFS equivalent, key selection criteria include its 400V VRRM, 30A IFSM surge rating, thermal resistance (RθJL = 28°C/W), J-STD-020 Level 1 moisture sensitivity, and RoHS/halogen-free compliance.
Technical Context
The ES1GFS uses a glass-passivated single-die silicon junction optimized for super-fast recovery (trr ≤ 35ns), enabling operation in switching-mode power supplies up to several hundred kHz. Its low-profile SOD-128 package supports high-density PCB layouts while maintaining thermal performance via direct lead-to-junction conduction path.
Designed for unidirectional current flow, it exhibits temperature-stable reverse leakage (≤20µA at 125°C) and forward voltage drift (0.77V at 1.0A/125°C), supporting reliable operation across -55°C to +150°C junction range without derating below 125°C ambient on standard 5mm×5mm Cu pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines usable input/output voltage headroom in 375–400V DC bus applications. |
| IF | 1 A - Continuous average forward current; rated for full-load operation with adequate heatsinking on PCB copper area. |
| trr | 35 ns - Reverse recovery time; enables efficient operation in >200 kHz SMPS topologies with minimal switching loss. |
| VF @ 1A, 25°C | 0.93 V - Forward voltage drop; determines conduction loss (0.93W at 1A), directly impacting thermal design and efficiency. |
| CJ | 16 pF - Junction capacitance at 4V; affects high-frequency noise coupling and snubber design in flyback/LLC resonant circuits. |
| RθJL | 28 °C/W - Junction-to-lead thermal resistance; enables accurate junction temperature estimation using measured lead temperature. |
| IFSM (8.3ms) | 30 A - Non-repetitive surge current rating; supports inrush current handling during startup or fault transients. |
Pinout & Package
SOD-128 is a low-profile, surface-mount plastic package with two gull-wing leads. Polarity is marked by a cathode band on the device body; the anode and cathode terminals are located at opposite ends of the molded case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point under forward bias | Connected to lower-potential node (e.g., switch node in buck converter, transformer secondary center-tap). |
| Cathode | Current exit point under forward bias | Connected to output filter capacitor or load return; carries full output current and defines reference for voltage sensing. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance without requiring conformal coating in industrial environments. |
| Super fast recovery (trr ≤ 35 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency converters. |
| J-STD-020 Level 1 moisture sensitivity | Eliminates need for baking prior to reflow; supports standard SMT assembly without special handling. |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 requirements; suitable for consumer, industrial, and automotive supply chains with strict material restrictions. |
| Low-profile SOD-128 footprint | Enables compact layout in space-constrained applications such as USB PD adapters and PoE-powered devices. |
Applications
| AC-DC Adapter Output Rectification | DC-DC Buck Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in 12–24V, 10–30W offline AC-DC adapters with universal input (85–265V AC). IC Role / Device Role / Timing Role: Unidirectional current steering element converting transformer AC output to regulated DC; operates synchronously with primary-side MOSFET switching frequency (65–130 kHz). Use Value: 0.93V VF minimizes conduction loss at 1A load; 35ns trr prevents cross-conduction and reduces EMI generation during diode turn-off. | Use Scenario: Freewheeling path in 5–12V, 1–3A step-down converters powering FPGA I/O banks or microcontroller peripherals. IC Role / Device Role / Timing Role: Provides continuous current path during high-side MOSFET off-time; must recover before next switching cycle begins (typically <500ns dead time). Use Value: 35ns trr ensures full recovery within typical dead-time windows; 16pF CJ limits capacitive coupling into gate drive signals. |
| Industrial SMPS Auxiliary Supply | LED Driver Constant-Current Loop |
Use Scenario: Auxiliary bias supply in 48V telecom rectifiers or PLC power modules delivering isolated 5V/100mA for control logic. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter auxiliary winding circuit; operates continuously at light load with high efficiency priority. Use Value: 20µA max IR at 125°C ensures stable no-load regulation; RθJL = 28°C/W allows accurate thermal monitoring via solder joint temperature. | Use Scenario: High-side current-sense path in constant-current LED drivers for signage or architectural lighting (24–48V input, 350mA output). IC Role / Device Role / Timing Role: Precision current path element where forward voltage stability directly sets LED current accuracy over temperature. Use Value: 0.77V VF at 1.0A/125°C provides predictable voltage drop for current-sense resistor placement; ±0.1V VF variation across temperature improves current regulation tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L04S | 400V VRRM, 30ns trr, 0.87V VF @ 1A/25°C, TO-277 package | Higher thermal mass but larger footprint; requires different pad layout | Select when lower VF and faster trr justify board redesign and higher cost. |
| MBR140SFT1G | 40V VRRM, Schottky architecture, 0.52V VF @ 1A/25°C, SOD-128 package | Not suitable for 400V blocking; limited to ≤45V output rails | Use only in low-voltage DC-DC outputs where ultra-low VF outweighs voltage limitation. |
Compared with STTH1L04S and MBR140SFT1G, the ES1GFS offers optimal balance of 400V capability, SOD-128 compatibility, and 35ns recovery in cost-sensitive industrial power supplies-neither alternative matches its exact voltage/speed/package triad.
Availability
ES1GFS 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 industrial availability.
Supply support for ES1GFS 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, specializing in power rectifiers, TVS diodes, and MOSFETs since 1979.
The ES1xFS series was developed specifically for high-efficiency, high-frequency switching power supplies demanding robust surge immunity, low-profile packaging, and extended temperature operation without derating.
FAQ
What is the maximum junction temperature rating for ES1GFS?
The ES1GFS has a maximum junction temperature (TJ) rating of +150°C, validated across its full operating range from -55°C to +150°C. This rating applies under all specified electrical conditions and is supported by thermal resistance data (RθJL = 28°C/W). The ES1GFS maintains stable electrical parameters-including reverse leakage and forward voltage-up to this limit, making it suitable for enclosed industrial enclosures without forced airflow.
Does ES1GFS have a defined moisture sensitivity level (MSL) for reflow soldering?
Yes, the ES1GFS is rated at J-STD-020 Moisture Sensitivity Level 1, meaning it can be stored indefinitely at ≤30°C/85% RH and subjected to standard lead-free reflow profiles without pre-baking. This eliminates handling constraints in high-volume SMT lines and ensures process robustness for automated assembly of power supply PCBs using the ES1GFS.
What is the reverse recovery time (trr) specification for ES1GFS and under what test conditions?
The ES1GFS reverse recovery time is specified as ≤35ns under the condition: IF = 0.5A, IR = 1.0A, Irr = 0.25A. This measurement reflects the time required for minority carriers to clear after forward conduction, directly influencing switching loss in high-frequency converters. The value is guaranteed across temperature and supports designs operating up to 500kHz with controlled EMI.
How does the forward voltage of ES1GFS vary with temperature and current?
The ES1GFS forward voltage decreases with rising junction temperature: at 1.0A, VF is 0.93V at 25°C and drops to 0.77V at 125°C. This negative temperature coefficient improves thermal stability in parallel configurations and reduces conduction loss at elevated temperatures. The ES1GFS datasheet provides full curves for VF vs. IF across -55°C to +150°C, enabling precise loss modeling in thermal simulations.
Is ES1GFS compatible with lead-free soldering processes?
Yes, the ES1GFS features matte tin-plated leads compliant with J-STD-002 for solderability and meets JEDEC JESD201 Class 2 whisker resistance requirements. Its SOD-128 package is qualified for standard lead-free reflow profiles (peak temperature ≤260°C), and the device passes thermal cycling and mechanical shock tests per industry standards-ensuring long-term reliability in lead-free manufacturing environments using the ES1GFS.
ES1GFS 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):
- 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:
- 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
ES1GFS FAQ
1.How can I place an order for ES1GFS through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1GFS 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 ES1GFS reliable?
The price and inventory of ES1GFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1GFS is usually 5 days.
3.What payment methods are accepted for ES1GFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1GFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1GFS?
ES1GFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1GFS 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 ES1GFS?
For technical support, including ES1GFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1GFS requirements.
6.How does Aetrix verify that ES1GFS is sourced from the original manufacturer or authorized distributors?
All ES1GFS 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 ES1GFS meets industry standards.
7.What is the process for return or replacement of ES1GFS?
All ES1GFS units undergo pre-shipment inspection (PSI). If there is an issue with ES1GFS, 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 ES1GFS part is unused and in its original packaging.
Return procedure for ES1GFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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