Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Taiwan Semiconductor Corporation ES1GF-T

Name: ES1GF-T
Brand: Taiwan Semiconductor Corporation
SKU: ES1GF-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: ES1GF-T

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-221AC, SMA Flat Leads

Datasheet:: ES1GF-T.pdf

Description:: 35NS, 1A, 400V, SUPER FAST RECOV

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:7,490

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

ES1GF-T from Taiwan Semiconductor is a 1A, 400V super fast surface-mount rectifier in SMAF package, featuring 1.04V max forward voltage at 1.0A/25°C, 35ns reverse recovery time, and 11pF junction capacitance. It serves as a freewheeling diode or output rectifier in high-frequency DC-DC converters.

For engineers reviewing the ES1GF-T datasheet, ES1GF-T pinout, ES1GF-T application, or ES1GF-T equivalent, key selection criteria include V_RRM = 400V, I_F = 1A continuous, t_rr ≤ 35ns, low leakage (≤5µA @ 25°C), and thermal resistance R_θJA = 89°C/W on standard PCB mounting.

Technical Context

The ES1GF-T employs a glass-passivated single-die silicon junction optimized for switching-mode power supplies operating up to several hundred kHz. Its 400V V_RRM rating supports 280V RMS input stages in offline AC-DC front-ends and intermediate bus converters.

With t_rr = 35ns and low Q_rr, the ES1GF-T minimizes switching losses and EMI generation during commutation. Its 11pF junction capacitance at 1MHz/4V enables stable high-frequency operation without excessive capacitive loading on gate drivers or control ICs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Withstands repetitive reverse voltage up to 400V, suitable for 280V RMS input rectification
I_F	1 A - Continuous forward current rating defines maximum steady-state conduction capability
t_rr	35 ns - Fast reverse recovery reduces switching loss and ringing in SMPS output stages
V_F (max)	1.25 V @ 1A/25°C - Low forward drop improves efficiency in low-voltage, high-current outputs
C_J	11 pF @ 1MHz/4V - Minimal junction capacitance avoids signal coupling and timing skew in fast-switching nodes
R_θJA	89 °C/W - Thermal resistance measured on 5mm × 5mm Cu pad; informs heatsinking requirements
I_R (max)	5 µA @ 25°C - Low leakage preserves hold-up time and reduces standby power loss

Pinout & Package

Package: SMAF (Surface Mount Axial Flat) - molded plastic case with matte tin-plated leads, UL 94V-0 rated, polarity indicated by cathode band, weight ≈ 0.035g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node (e.g., switch node or ground return path)
Cathode	Forward current exit point	Connected to higher-potential node (e.g., output rail or positive bus); marked by band

Key Features

Feature	Design Value
Glass passivated junction	Enhances reliability under humidity and thermal cycling; meets J-STD-020 MSL Level 1
Super fast recovery (t_rr ≤ 35ns)	Reduces turn-off loss and EMI in 100–500 kHz SMPS designs
Low forward voltage (V_F ≤ 1.25V @ 1A)	Improves conversion efficiency in 3.3V–12V output rails with tight thermal budgets
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and environmental compliance for industrial and consumer end equipment
SMAF package with JESD201 Class 1 whisker resistance	Enables automated SMT placement and long-term solder joint integrity

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Freewheeling
Use Scenario: Secondary-side synchronous or asynchronous rectification in isolated flyback or forward converters delivering 5–24V at ≤1A. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer from transformer secondary to output capacitor. Use Value: 35ns t_rr and 1.25V V_F limit conduction + switching loss, supporting >85% efficiency at light-to-moderate loads.	Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or relay coils) in half-bridge inverters. IC Role / Device Role / Timing Role: Provides low-impedance return path during switch off-time to clamp inductive kickback. Use Value: 400V V_RRM safely handles transient overvoltages up to 400V; 30A I_FSM withstands short-duration surge currents.
AC-DC Adapter Input Bridge Leg	Industrial Power Supply Snubber Network
Use Scenario: One leg of a full-wave bridge rectifier in universal-input (85–265V AC) offline adapters. IC Role / Device Role / Timing Role: Converts AC line input to pulsating DC before bulk capacitor filtering. Use Value: 280V VR(RMS) rating matches 230V AC mains peak (≈325V), with 400V V_RRM providing margin against line surges.	Use Scenario: Clamp diode in RC snubber networks across MOSFETs or IGBTs in motor drives and UPS systems. IC Role / Device Role / Timing Role: Absorbs inductive energy during switching transitions and limits dv/dt stress on power switches. Use Value: 11pF C_J minimizes capacitive loading on snubber resistor; fast t_rr ensures clean clamping without tail current.

DC-DC Converter Output Rectification

Switching Mode Inverter Freewheeling

Use Scenario: Secondary-side synchronous or asynchronous rectification in isolated flyback or forward converters delivering 5–24V at ≤1A.

IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer from transformer secondary to output capacitor.

Use Value: 35ns t_rr and 1.25V V_F limit conduction + switching loss, supporting >85% efficiency at light-to-moderate loads.

Use Scenario: Freewheeling path across inductive loads (e.g., motor windings or relay coils) in half-bridge inverters.

IC Role / Device Role / Timing Role: Provides low-impedance return path during switch off-time to clamp inductive kickback.

Use Value: 400V V_RRM safely handles transient overvoltages up to 400V; 30A I_FSM withstands short-duration surge currents.

AC-DC Adapter Input Bridge Leg

Industrial Power Supply Snubber Network

Use Scenario: One leg of a full-wave bridge rectifier in universal-input (85–265V AC) offline adapters.

IC Role / Device Role / Timing Role: Converts AC line input to pulsating DC before bulk capacitor filtering.

Use Value: 280V VR(RMS) rating matches 230V AC mains peak (≈325V), with 400V V_RRM providing margin against line surges.

Use Scenario: Clamp diode in RC snubber networks across MOSFETs or IGBTs in motor drives and UPS systems.

IC Role / Device Role / Timing Role: Absorbs inductive energy during switching transitions and limits dv/dt stress on power switches.

Use Value: 11pF C_J minimizes capacitive loading on snubber resistor; fast t_rr ensures clean clamping without tail current.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L04F	V_RRM = 400V, I_F = 1A, t_rr = 30ns, V_F = 1.15V @ 1A - slightly faster but higher V_F	Better suited for ultra-low-loss 500kHz+ designs where <5ns t_rr advantage matters	Prefer STTH1L04F when minimizing switching loss dominates over conduction loss
ON Semi MUR140	V_RRM = 400V, I_F = 1A, t_rr = 50ns, V_F = 1.1V @ 1A - slower recovery, lower V_F	More appropriate for lower-frequency (<100kHz) converters where EMI is less critical	Choose MUR140 if cost sensitivity outweighs need for sub-40ns t_rr

Compared with STTH1L04F and MUR140, the ES1GF-T delivers balanced performance: faster than MUR140 for reduced EMI, yet more efficient than STTH1L04F at moderate load currents due to lower V_F.

Availability

ES1GF-T is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and AC-DC adapter input bridge legs requiring stable component supply and consistent parametric performance across production lots.

Supply support for ES1GF-T 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 management and industrial markets since 1979.

The ES1GF-T belongs to TSC's ES1x-F super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power supplies where low t_rr, controlled V_F, and robust thermal performance are essential.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the ES1GF-T?

The ES1GF-T has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, as specified in the Absolute Maximum Ratings table. This rating allows the ES1GF-T to be used in applications with up to 280 V RMS input voltage, including universal-input AC-DC adapters and intermediate bus converters. The 400 V margin accommodates typical line surges and transient overvoltages without breakdown.

What is the forward voltage (V_F) of the ES1GF-T at 1.0A and 25°C?

The ES1GF-T exhibits a typical forward voltage of 1.04 V and a maximum of 1.25 V at 1.0 A and 25°C, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and reflects conduction loss under nominal operating conditions. At 125°C, V_F drops to ≤1.03 V, improving efficiency at elevated temperatures.

Does the ES1GF-T have a defined reverse recovery time (t_rr)?

Yes, the ES1GF-T has a specified reverse recovery time (t_rr) of ≤35 ns, tested at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This parameter confirms its classification as a super fast rectifier and directly impacts switching loss and EMI performance in high-frequency power converters. The t_rr remains stable across temperature and is validated per JEDEC test methods.

What package type does the ES1GF-T use, and what are its key mechanical features?

The ES1GF-T uses the SMAF (Surface Mount Axial Flat) package - a compact, leaded surface-mount outline with matte tin-plated leads compliant with J-STD-002 solderability. Key features include UL 94V-0 flammability rating, JESD201 Class 1 whisker resistance, moisture sensitivity level (MSL) 1, and polarity indicated by a visible cathode band. Its approximate weight is 0.035 g.

Is the ES1GF-T RoHS and halogen-free compliant?

Yes, the ES1GF-T is fully RoHS compliant and halogen-free in accordance with IEC 61249-2-21. These compliance statements are explicitly confirmed in the FEATURES section of the official Taiwan Semiconductor datasheet (Version B2103). The device contains no intentionally added brominated flame retardants or chlorine-based compounds above threshold limits.

ES1GF-T Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-221AC, SMA Flat Leads

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:: 1.25 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:: 11pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMAF

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

ES1GF-T FAQ

1.How can I place an order for ES1GF-T through Aetrix?

Please submit a Request for Quotation (RFQ) for ES1GF-T 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 ES1GF-T reliable?

The price and inventory of ES1GF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1GF-T is usually 5 days.

3.What payment methods are accepted for ES1GF-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1GF-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES1GF-T?

ES1GF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES1GF-T 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 ES1GF-T?

For technical support, including ES1GF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1GF-T requirements.

6.How does Aetrix verify that ES1GF-T is sourced from the original manufacturer or authorized distributors?

All ES1GF-T 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 ES1GF-T meets industry standards.

7.What is the process for return or replacement of ES1GF-T?

All ES1GF-T units undergo pre-shipment inspection (PSI). If there is an issue with ES1GF-T, 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 ES1GF-T part is unused and in its original packaging.

Return procedure for ES1GF-T:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…