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

Taiwan Semiconductor Corporation ES3GB

Name: ES3GB
Brand: Taiwan Semiconductor Corporation
SKU: ES3GB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3GB

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES3GB.pdf

Description:: DIODE GEN PURP 400V 3A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:2,403

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Product details

Overview

ES3GB from Taiwan Semiconductor is a 400V, 3A super fast surface-mount rectifier diode in DO-214AA (SMB) package, featuring 35ns reverse recovery time, 0.98V typical forward voltage at 3A/25°C, and 100A surge current capability - deployed in high-frequency switching power supplies and LED lighting converters.

For engineers reviewing the ES3GB datasheet, ES3GB pinout, ES3GB application, or ES3GB equivalent, key selection criteria include V_RRM = 400V, I_F = 3A continuous, t_rr ≤ 35ns, thermal resistance R_θJA = 84°C/W, and RoHS/halogen-free compliance for industrial-grade SMPS design.

Technical Context

The ES3GB operates as a single-die, unidirectional silicon rectifier with glass-passivated junction for enhanced reliability under repetitive surge stress. Its 35ns reverse recovery time enables efficient operation in 100–500kHz switching topologies, while the DO-214AA package supports automated placement and meets J-STD-020 moisture level 1 requirements.

Thermal performance is characterized by R_θJL = 24°C/W and R_θJC = 26°C/W on a 10mm × 10mm copper pad PCB, enabling sustained 3A conduction up to T_J = 150°C. Junction capacitance is 41pF at 1MHz/4V, supporting low-noise high-speed rectification without excessive ringing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage before breakdown; sets safe operating margin in 277VAC input SMPS designs.
I_F	3 A - Continuous forward current rating; defines minimum heatsinking requirement for 12–24W output converters.
t_rr	≤35 ns - Reverse recovery time; enables high-frequency operation with reduced switching loss vs. standard rectifiers.
V_F @ 3A, 25°C	0.98 V typ - Forward voltage drop; determines conduction loss (≈2.94W at full load) and thermal rise in compact layouts.
C_J @ 1MHz, 4V	41 pF - Junction capacitance; limits high-frequency noise coupling and EMI in flyback snubber networks.
I_FSM	100 A - Non-repetitive surge current (8.3ms half-sine); withstands inrush and transient overloads in AC-DC front-ends.
T_J max	150 °C - Maximum junction temperature; allows operation in sealed enclosures with limited airflow.

Pinout & Package

DO-214AA (SMB) surface-mount package with cathode-indicating band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input terminal for forward conduction	Connected to transformer secondary or switch node; must handle 100A surge without bond wire failure.
Cathode	Output terminal for forward conduction	Marked by band; routed to output capacitor; low-inductance layout critical for t_rr-driven EMI control.

Key Features

Feature	Design Value
Glass passivated junction	Enables stable leakage current (<10µA @ 400V, 25°C) and long-term reliability in humid environments.
Super fast recovery (t_rr ≤35ns)	Reduces reverse recovery charge (Q_rr) and associated switching losses in 200–500kHz converters.
DO-214AA (SMB) low-profile package	0.110g weight and JEDEC-compliant footprint support high-density automated assembly and thermal pad routing.
Moisture sensitivity level 1	Eliminates bake preconditioning prior to reflow, reducing manufacturing cycle time and cost.
RoHS & halogen-free	Complies with IEC 61249-2-21 and EU directives for environmentally constrained industrial and lighting applications.

Applications

Switching Mode Power Supply (SMPS)	LED Lighting Driver
Use Scenario: Secondary-side rectification in 20–60W offline flyback converters with 277VAC input. IC Role / Device Role / Timing Role: Unidirectional current steering device converting high-frequency AC to DC; no timing function. Use Value: 35ns t_rr minimizes switching loss and improves efficiency >88% at full load vs. standard FR diodes.	Use Scenario: Constant-current output rectification in isolated LED drivers for commercial troffer fixtures. IC Role / Device Role / Timing Role: Output rectifier handling 3A continuous current with minimal forward drop to reduce thermal stress on heat sinks. Use Value: 0.98V V_F at 3A lowers conduction loss by ~15% compared to 1.15V alternatives, extending driver lifetime.
AC-DC Adapter	DC-DC Converter
Use Scenario: Primary-side clamp or secondary-side rectification in universal-input (90–264VAC) 36W laptop adapters. IC Role / Device Role / Timing Role: High-reliability rectifier subjected to repeated cold-start surges and line transients. Use Value: 100A I_FSM withstands 10× rated current surges without degradation, ensuring field robustness.	Use Scenario: Synchronous rectifier replacement in isolated 12V-to-5V/3.3V DC-DC modules for telecom baseband cards. IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode in active-clamp forward or LLC resonant topologies. Use Value: 41pF C_J reduces capacitive coupling into gate drive circuits, improving cross-conduction immunity.

Switching Mode Power Supply (SMPS)

LED Lighting Driver

Use Scenario: Secondary-side rectification in 20–60W offline flyback converters with 277VAC input.

IC Role / Device Role / Timing Role: Unidirectional current steering device converting high-frequency AC to DC; no timing function.

Use Value: 35ns t_rr minimizes switching loss and improves efficiency >88% at full load vs. standard FR diodes.

Use Scenario: Constant-current output rectification in isolated LED drivers for commercial troffer fixtures.

IC Role / Device Role / Timing Role: Output rectifier handling 3A continuous current with minimal forward drop to reduce thermal stress on heat sinks.

Use Value: 0.98V V_F at 3A lowers conduction loss by ~15% compared to 1.15V alternatives, extending driver lifetime.

AC-DC Adapter

DC-DC Converter

Use Scenario: Primary-side clamp or secondary-side rectification in universal-input (90–264VAC) 36W laptop adapters.

IC Role / Device Role / Timing Role: High-reliability rectifier subjected to repeated cold-start surges and line transients.

Use Value: 100A I_FSM withstands 10× rated current surges without degradation, ensuring field robustness.

Use Scenario: Synchronous rectifier replacement in isolated 12V-to-5V/3.3V DC-DC modules for telecom baseband cards.

IC Role / Device Role / Timing Role: Fast-recovery freewheeling diode in active-clamp forward or LLC resonant topologies.

Use Value: 41pF C_J reduces capacitive coupling into gate drive circuits, improving cross-conduction immunity.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
Vishay VS-3EYH04-M3/45	V_RRM = 400V, I_F = 3A, t_rr = 35ns, same DO-214AA package but higher V_F (1.10V @ 3A)	Slightly higher conduction loss; suitable where thermal margin exists but EMI sensitivity is lower	Select when legacy Vishay BOM alignment is required and 0.12V higher V_F is acceptable.
ON Semiconductor MUR340G	V_RRM = 400V, I_F = 3A, t_rr = 50ns, DO-214AC (SMA) package - smaller footprint, higher R_θJA (100°C/W)	Higher t_rr increases switching loss; smaller package limits thermal dissipation in high-ambient designs	Choose only for space-constrained boards where 15ns slower recovery and 16°C/W higher thermal resistance are tolerable.

Compared with VS-3EYH04-M3/45 and MUR340G, ES3GB delivers lower forward voltage and identical t_rr in a thermally optimized SMB package - making it preferred for efficiency-critical, medium-power SMPS where thermal headroom is limited.

Availability

ES3GB is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply and consistent parametric performance across production lots.

Supply support for ES3GB 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 and consumer markets since 1979.

The ES3AB–ES3JB series was developed specifically for high-efficiency, high-reliability AC-DC and DC-DC conversion systems demanding fast recovery, low V_F, and robust surge tolerance in compact surface-mount packages.

FAQ

What is the maximum junction temperature rating for ES3GB?

The ES3GB has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version C2102. This allows continuous operation in enclosed industrial power supplies with ambient temperatures up to 75°C when mounted on a 10mm × 10mm Cu pad. Derating curves confirm 3A current remains viable at T_J = 150°C.

Does ES3GB have a specified reverse recovery time, and how is it measured?

Yes, ES3GB specifies a reverse recovery time (t_rr) of ≤35ns, measured under conditions: I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A, per the Electrical Specifications section of the Taiwan Semiconductor datasheet. This value is confirmed across both 25°C and 125°C test conditions and applies directly to the ES3GB variant within the ES3xB family.

What is the forward voltage of ES3GB at 3A and 125°C?

The forward voltage (V_F) of ES3GB is 0.83V (typical) and 0.95V (maximum) at I_F = 3.0A and T_J = 125°C, as published in the Electrical Specifications table of the official datasheet. This lower V_F at elevated temperature reflects positive temperature coefficient behavior and supports stable thermal performance in high-ambient applications.

Is ES3GB compatible with lead-free reflow soldering processes?

Yes, ES3GB is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AA (SMB) package is rated for moisture sensitivity level 1 per J-STD-020 - eliminating the need for pre-bake. The compound meets UL 94V-0 flammability and RoHS/halogen-free standards.

What marking code appears on the ES3GB device body?

The ES3GB device is marked with "ES3GB" on its body, as confirmed in the Marking Diagram and Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet. The marking includes the full part number without truncation or alternate codes, ensuring unambiguous identification during automated optical inspection (AOI) and manual verification.

ES3GB Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.13 V @ 3 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 400 V

Capacitance @ Vr, F:: 41pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AA (SMB)

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

ES3GB FAQ

1.How can I place an order for ES3GB through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3GB 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 ES3GB reliable?

The price and inventory of ES3GB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3GB is usually 5 days.

3.What payment methods are accepted for ES3GB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3GB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3GB?

ES3GB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3GB 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 ES3GB?

For technical support, including ES3GB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3GB requirements.

6.How does Aetrix verify that ES3GB is sourced from the original manufacturer or authorized distributors?

All ES3GB 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 ES3GB meets industry standards.

7.What is the process for return or replacement of ES3GB?

All ES3GB units undergo pre-shipment inspection (PSI). If there is an issue with ES3GB, 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 ES3GB part is unused and in its original packaging.

Return procedure for ES3GB:

1.Submit a request within 90 days.

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

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