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

Taiwan Semiconductor Corporation ES3G R7G

Name: ES3G R7G
Brand: Taiwan Semiconductor Corporation
SKU: ES3G R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3G R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ES3G R7G.pdf

Description:: DIODE GEN PURP 400V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ES3G R7G from Taiwan Semiconductor is a 400 V repetitive peak reverse voltage, 3 A average forward current super fast surface-mount rectifier in DO-214AB (SMC) package, with 35 ns reverse recovery time and 1.30 V max forward voltage at 3 A, used in high-frequency switching mode power supplies for telecom and computing systems.

For engineers reviewing the ES3G R7G datasheet, ES3G R7G pinout, ES3G R7G application, or ES3G R7G equivalent, key selection criteria include V_RRM = 400 V, I_F = 3 A, t_rr = 35 ns, V_F ≤ 1.30 V, and DO-214AB thermal performance (R_θJL = 12 °C/W).

Technical Context

This super fast rectifier employs a glass-passivated silicon junction optimized for high-efficiency switching applications. Its 35 ns reverse recovery time enables operation in 100–500 kHz SMPS topologies while minimizing switching losses and EMI generation.

The device features single-die construction in a moisture-insensitive DO-214AB (SMC) package rated to 150 °C junction temperature, with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 2 whisker resistance.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports DC bus voltages up to 280 V RMS in bridge configurations without derating
I_F	3 A continuous - delivers full-rated output current in compact SMC footprint with minimal heatsinking
t_rr	35 ns - enables efficient operation in high-frequency converters (>200 kHz) with low turn-off loss
V_F @ 3 A	≤ 1.30 V - reduces conduction loss to <3.9 W at full load, easing thermal management
R_θJL	12 °C/W - allows direct PCB copper pour heat transfer to chassis or heatsink without thermal vias
C_J	30 pF @ 4 V - limits capacitive coupling noise in high-dv/dt gate-drive or snubber circuits
I_FSM	100 A @ 8.3 ms - withstands inrush currents during cold-start of AC/DC front-ends

Pinout & Package

DO-214AB (SMC) package: molded epoxy case meeting UL 94V-0, cathode indicated by band, matte tin-plated leads, weight ≈ 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or switch node)
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail; polarity band identifies this terminal for correct PCB placement

Key Features

Feature	Design Value
Glass-passivated junction	Ensures stable leakage current (<10 µA @ 25°C) and long-term reliability under humidity stress
Super fast recovery (35 ns)	Reduces reverse recovery charge (Q_rr) to ~15 nC, lowering diode-induced switching loss in synchronous rectifiers
Moisture sensitivity level 1	Eliminates bake requirement before reflow, supporting standard SMT assembly without process modification
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment

Applications

Telecom AC/DC Front-End	Server PSU Secondary Rectification
Use Scenario: Input rectification stage in 48 V telecom rectifiers handling universal AC input (90–264 VAC). IC Role / Device Role / Timing Role: Primary input bridge rectifier diode in full-wave configuration. Use Value: 400 V V_RRM provides 1.4× safety margin over 280 VDC PFC output, enabling robust surge immunity.	Use Scenario: Output synchronous rectification in 12 V/200 A server VRMs operating at 300–500 kHz. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward or LLC resonant converter secondary. Use Value: 35 ns t_rr minimizes body-diode conduction loss during dead-time, improving efficiency by ≥0.4% at full load.
Industrial Motor Drive Snubber	Automotive On-Board Charger (OBC) Auxiliary Supply
Use Scenario: RC snubber clamp diode across IGBTs in 3-phase inverter stages (e.g., HVAC compressors). IC Role / Device Role / Timing Role: Fast-recovery clamp path for inductive turn-off energy dissipation. Use Value: Low C_J (30 pF) prevents parasitic oscillation triggering, while 100 A I_FSM absorbs repetitive switching surges.	Use Scenario: Auxiliary 12 V supply rectification in bi-directional OBCs with 400 V battery interface. IC Role / Device Role / Timing Role: Isolated auxiliary supply output rectifier in flyback or forward converter. Use Value: 150 °C T_JMAX and R_θJL = 12 °C/W support operation in sealed, thermally constrained automotive enclosures.

Telecom AC/DC Front-End

Server PSU Secondary Rectification

Use Scenario: Input rectification stage in 48 V telecom rectifiers handling universal AC input (90–264 VAC).

IC Role / Device Role / Timing Role: Primary input bridge rectifier diode in full-wave configuration.

Use Value: 400 V V_RRM provides 1.4× safety margin over 280 VDC PFC output, enabling robust surge immunity.

Use Scenario: Output synchronous rectification in 12 V/200 A server VRMs operating at 300–500 kHz.

IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward or LLC resonant converter secondary.

Use Value: 35 ns t_rr minimizes body-diode conduction loss during dead-time, improving efficiency by ≥0.4% at full load.

Industrial Motor Drive Snubber

Automotive On-Board Charger (OBC) Auxiliary Supply

Use Scenario: RC snubber clamp diode across IGBTs in 3-phase inverter stages (e.g., HVAC compressors).

IC Role / Device Role / Timing Role: Fast-recovery clamp path for inductive turn-off energy dissipation.

Use Value: Low C_J (30 pF) prevents parasitic oscillation triggering, while 100 A I_FSM absorbs repetitive switching surges.

Use Scenario: Auxiliary 12 V supply rectification in bi-directional OBCs with 400 V battery interface.

IC Role / Device Role / Timing Role: Isolated auxiliary supply output rectifier in flyback or forward converter.

Use Value: 150 °C T_JMAX and R_θJL = 12 °C/W support operation in sealed, thermally constrained automotive enclosures.

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-ES3GHE3/54	V_RRM = 400 V, t_rr = 35 ns, V_F = 1.25 V @ 3 A, same DO-214AB package	Identical electrical specs; differs in marking format and traceability documentation	Select for Vishay-qualified supply chains requiring AS9100-compliant lot traceability
ON Semiconductor MUR340G	V_RRM = 400 V, t_rr = 50 ns, V_F = 1.30 V @ 3 A, DO-214AB package	Slower recovery increases Q_rr by ~40%, raising switching loss in >250 kHz designs	Prefer where cost sensitivity outweighs 0.2–0.3% efficiency penalty at high frequency

Compared with VS-ES3GHE3/54, ES3G R7G offers identical core performance but different manufacturing traceability; versus MUR340G, ES3G R7G delivers superior high-frequency efficiency due to 15 ns faster recovery, critical for >300 kHz telecom PSUs.

Availability

ES3G R7G is available at Aetrix Electronics and suitable for telecom power supplies, server VRMs, industrial motor drives, and automotive on-board chargers requiring stable component supply with consistent parametric performance across production lots.

Supply support for ES3G R7G 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 devices, and MOSFETs since 1979.

The ES3x series was designed specifically for high-efficiency, high-frequency switching power conversion in space-constrained computing and communications infrastructure, emphasizing low V_F, fast t_rr, and robust thermal performance in SMC packages.

FAQ

What is the maximum junction temperature rating for ES3G R7G?

The ES3G R7G has a maximum junction temperature (T_JMAX) of +150 °C, allowing reliable operation in thermally demanding environments such as enclosed server PSUs or automotive under-hood applications. This rating is validated per JEDEC JESD22-A104 and supported by its R_θJL = 12 °C/W thermal resistance, enabling effective heat transfer to the PCB or heatsink. The ES3G R7G must be operated within this limit to ensure long-term reliability and parametric stability.

Does ES3G R7G meet RoHS and halogen-free requirements?

Yes, ES3G R7G is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21, verified by material declarations and third-party testing. The molding compound contains no brominated flame retardants, and the matte tin-plated leads are free of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE. These compliance attributes make ES3G R7G suitable for consumer, telecom, and industrial equipment sold in regulated markets. Documentation is available upon request for ES3G R7G.

What is the reverse recovery time (t_rr) specification for ES3G R7G?

The reverse recovery time (t_rr) for ES3G R7G is specified as 35 ns maximum under test conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This value is measured per JEDEC JESD24-10 and reflects the device's ability to rapidly transition from conduction to blocking state, directly reducing switching losses in high-frequency converters. The ES3G R7G achieves this performance via optimized doping and junction design, distinguishing it from standard fast recovery diodes.

Is ES3G R7G suitable for use in freewheeling applications?

Yes, ES3G R7G is explicitly qualified for freewheeling applications, as confirmed in Taiwan Semiconductor's official documentation. Its 35 ns t_rr, low V_F (≤1.30 V), and 100 A I_FSM enable efficient energy recirculation during inductive turn-off in DC-DC converters and motor drivers. In buck or flyback topologies, the ES3G R7G minimizes voltage spikes and conduction loss during the freewheeling phase, improving system efficiency and EMI behavior. Designers routinely deploy ES3G R7G in such roles across telecom and industrial power designs.

What packaging and reel quantity does ES3G R7G ship in?

ES3G R7G is supplied in DO-214AB (SMC) package on 3,000-piece tape-and-reel format per JEDEC J-STD-033 standard. The reel complies with EIA-481-D specifications, including leader/trailer lengths, sprocket hole pitch, and pocket depth for automated pick-and-place compatibility. Each reel is labeled with date code (YW), factory code (F), and green compound indicator (G), matching Taiwan Semiconductor's official ordering code ES3G R7G. Aetrix Electronics maintains full traceability for every ES3G R7G reel shipped.

ES3G R7G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

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

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.3 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:: 30pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

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

ES3G R7G FAQ

1.How can I place an order for ES3G R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3G R7G 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 ES3G R7G reliable?

The price and inventory of ES3G R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3G R7G is usually 5 days.

3.What payment methods are accepted for ES3G R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3G R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3G R7G?

ES3G R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3G R7G 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 ES3G R7G?

For technical support, including ES3G R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3G R7G requirements.

6.How does Aetrix verify that ES3G R7G is sourced from the original manufacturer or authorized distributors?

All ES3G R7G 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 ES3G R7G meets industry standards.

7.What is the process for return or replacement of ES3G R7G?

All ES3G R7G units undergo pre-shipment inspection (PSI). If there is an issue with ES3G R7G, 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 ES3G R7G part is unused and in its original packaging.

Return procedure for ES3G R7G:

1.Submit a request within 90 days.

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

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