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

Taiwan Semiconductor Corporation ES3B R7G

Name: ES3B R7G
Brand: Taiwan Semiconductor Corporation
SKU: ES3B R7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3B R7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ES3B R7G.pdf

Description:: DIODE GEN PURP 100V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:7,636

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Product details

Overview

ES3B R7G from Taiwan Semiconductor is a 3A, 100V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 35ns reverse recovery time, 0.95V forward voltage at 3A/25°C, and 100A peak surge current - used for freewheeling and high-frequency rectification in switching-mode power supplies.

For engineers reviewing the ES3B R7G datasheet, ES3B R7G pinout, ES3B R7G application, or ES3B R7G equivalent, key selection criteria include V_RRM = 100 V, I_F = 3 A, t_rr = 35 ns, V_F ≤ 0.95 V, and DO-214AB thermal performance (R_θJL = 12 °C/W).

Technical Context

The ES3B R7G implements a single-die, glass-passivated PN junction optimized for high-efficiency switching applications. Its 35 ns reverse recovery time enables operation in DC-DC converters and SMPS operating above 100 kHz, while its 12 °C/W junction-to-lead thermal resistance supports sustained 3 A conduction without forced cooling.

Designed for automated SMT placement, the device meets J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance. Cathode polarity is marked by a visible band on the DO-214AB molded body, and terminals are matte tin-plated per J-STD-002 solderability requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - maximum repetitive reverse voltage; defines safe blocking capability in flyback/freewheeling paths
I_F	3 A - continuous forward current rating; supports compact 12–24 V output rails in telecom PSUs
t_rr	35 ns - measured at I_F = 0.5 A, I_R = 1.0 A, I_rr = 0.25 A; enables >200 kHz switching with low commutation loss
V_F	≤ 0.95 V @ 3 A, 25°C - low conduction loss improves efficiency in 5–12 V secondary-side rectification
R_θJL	12 °C/W - junction-to-lead thermal resistance; allows direct PCB copper pour heat sinking without heatsink
I_FSM	100 A - non-repetitive surge rating; withstands inrush and transient overloads in AC-DC front ends

Pinout & Package

DO-214AB (SMC) surface-mount package: molded epoxy case rated UL 94V-0, 0.210 g mass, cathode-indicated band, matte tin-plated leads.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to switch node or transformer secondary winding; must handle 100 A surge peaks
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or ground return; carries full load current and reverse leakage (≤10 µA @ 25°C)

Key Features

Feature	Design Value
Super fast recovery (t_rr = 35 ns)	Reduces switching losses and EMI in 100–500 kHz SMPS designs
Glass passivated junction	Ensures long-term reliability under thermal cycling and humidity exposure (MSL-1)
DO-214AB mechanical robustness	Supports automated pick-and-place with <1% defect rate; withstands reflow profiles up to 260°C
Halogen-free & RoHS-compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing

Applications

Server Power Supply Rectification	Telecom DC-DC Converter Output
Use Scenario: Secondary-side rectification in 48 V input, 12 V/30 A isolated DC-DC modules for data center servers. IC Role / Device Role / Timing Role: Freewheeling diode conducting during synchronous FET off-time; handles 3 A continuous + 100 A surge. Use Value: 35 ns t_rr minimizes reverse recovery charge (Q_rr) and associated switching loss, improving full-load efficiency by ~0.4% vs. standard fast rectifiers.	Use Scenario: Output rectification in 36–72 V telecom power systems delivering 5 V/10 A to line cards. IC Role / Device Role / Timing Role: Unidirectional current path from transformer secondary to LC filter; blocks 100 V reverse transients. Use Value: 0.95 V V_F reduces conduction loss by 180 mW vs. 1.13 V alternatives at 3 A, lowering thermal stress on PCB copper.
Industrial Motor Drive Snubber	LED Driver Flyback Diode
Use Scenario: Snubber network diode in 24 V/48 V BLDC motor gate driver IC protection circuits. IC Role / Device Role / Timing Role: Clamps inductive kickback spikes during MOSFET turn-off; operates at 10–50 kHz repetition. Use Value: 12 °C/W R_θJL enables direct thermal coupling to copper pour, sustaining 3 A pulsed current without derating.	Use Scenario: Primary-side flyback rectifier in constant-current LED drivers for street lighting (100–240 VAC input). IC Role / Device Role / Timing Role: High-voltage blocking diode in discontinuous conduction mode (DCM) flyback topology. Use Value: 100 V V_RRM provides 2× safety margin over 50 V reflected output voltage, ensuring robustness against line surges.

Server Power Supply Rectification

Telecom DC-DC Converter Output

Use Scenario: Secondary-side rectification in 48 V input, 12 V/30 A isolated DC-DC modules for data center servers.

IC Role / Device Role / Timing Role: Freewheeling diode conducting during synchronous FET off-time; handles 3 A continuous + 100 A surge.

Use Value: 35 ns t_rr minimizes reverse recovery charge (Q_rr) and associated switching loss, improving full-load efficiency by ~0.4% vs. standard fast rectifiers.

Use Scenario: Output rectification in 36–72 V telecom power systems delivering 5 V/10 A to line cards.

IC Role / Device Role / Timing Role: Unidirectional current path from transformer secondary to LC filter; blocks 100 V reverse transients.

Use Value: 0.95 V V_F reduces conduction loss by 180 mW vs. 1.13 V alternatives at 3 A, lowering thermal stress on PCB copper.

Industrial Motor Drive Snubber

LED Driver Flyback Diode

Use Scenario: Snubber network diode in 24 V/48 V BLDC motor gate driver IC protection circuits.

IC Role / Device Role / Timing Role: Clamps inductive kickback spikes during MOSFET turn-off; operates at 10–50 kHz repetition.

Use Value: 12 °C/W R_θJL enables direct thermal coupling to copper pour, sustaining 3 A pulsed current without derating.

Use Scenario: Primary-side flyback rectifier in constant-current LED drivers for street lighting (100–240 VAC input).

IC Role / Device Role / Timing Role: High-voltage blocking diode in discontinuous conduction mode (DCM) flyback topology.

Use Value: 100 V V_RRM provides 2× safety margin over 50 V reflected output voltage, ensuring robustness against line surges.

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-3EYH01-M3/54	V_RRM = 100 V, t_rr = 35 ns, V_F = 0.92 V @ 3 A - slightly lower forward drop but DO-221AC (SMA) package	Smaller footprint (SMA vs. SMC); lower thermal mass limits sustained 3 A operation without copper pour	Select if board space is constrained and thermal design includes ≥1 cm² copper area under cathode pad
ON Semiconductor MUR3100CT	Dual common-cathode configuration, V_RRM = 100 V per diode, t_rr = 50 ns - slower recovery and TO-220AC package	Through-hole mounting; requires heatsink for >1.5 A continuous use; not suitable for high-density SMT layouts	Select only for legacy through-hole designs where thermal management infrastructure already exists

Compared with VS-3EYH01-M3/54 and MUR3100CT, ES3B R7G delivers identical 100 V/35 ns performance in the larger DO-214AB package - enabling higher thermal reliability in compact SMT power stages without layout redesign.

Availability

ES3B R7G is available at Aetrix Electronics and suitable for server power supply rectification, telecom DC-DC converter output, and industrial motor drive snubber applications requiring stable component supply and J-STD-020 MSL-1 compliance.

Supply support for ES3B 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, serving global power and signal conditioning markets since 1979.

The ES3x series belongs to TSC's Super Fast Rectifier product line, engineered specifically for high-frequency switching power conversion in computing, telecom, and industrial equipment where low t_rr, stable V_F, and robust thermal performance are critical.

FAQ

What is the maximum junction temperature rating for ES3B R7G?

The ES3B R7G has a maximum junction temperature (T_J) of +150°C, with operational range from –55°C to +150°C. This rating is validated per absolute maximum ratings table in the N2102 datasheet and supports reliable operation in enclosed power supplies with ambient temperatures up to +85°C when mounted on ≥1 cm² copper pour.

Does ES3B R7G meet RoHS and halogen-free requirements?

Yes, ES3B R7G is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. These certifications are confirmed in the "Features" section of the N2102 datasheet and verified via TSC's material declarations and third-party test reports for bromine/chlorine content <900 ppm.

What is the reverse leakage current specification for ES3B R7G at elevated temperature?

At T_J = 100°C and rated V_R, ES3B R7G exhibits a maximum reverse leakage current (I_R) of 500 µA. At 25°C and rated V_R, it is ≤10 µA. These values are specified in the "Electrical Specifications" table of the N2102 datasheet and measured under standardized pulse conditions (PW = 30 ms).

Is ES3B R7G suitable for use in automotive applications?

No, ES3B R7G is not qualified for automotive applications. The N2102 datasheet explicitly states that TSC products shown therein are "not designed for use in medical, life-saving, or life-sustaining applications," and no AEC-Q101 qualification data is published for the ES3x series. It is intended for industrial, computing, and telecom power systems.

What packaging format is supplied for ES3B R7G?

ES3B R7G is supplied in DO-214AB (SMC) package on 3,000-piece tape-and-reel format, per the "Ordering Information" section of the N2102 datasheet. Reel dimensions and orientation follow EIA-481 standards, and the device marking code "ES3B" is laser-printed on the cathode-banded surface.

ES3B 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):: 100 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 3 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 100 V

Capacitance @ Vr, F:: 45pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES3B R7G FAQ

1.How can I place an order for ES3B R7G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3B 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 ES3B R7G reliable?

The price and inventory of ES3B R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3B R7G is usually 5 days.

3.What payment methods are accepted for ES3B R7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3B R7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3B R7G?

ES3B R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3B 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 ES3B R7G?

For technical support, including ES3B R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3B R7G requirements.

6.How does Aetrix verify that ES3B R7G is sourced from the original manufacturer or authorized distributors?

All ES3B 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 ES3B R7G meets industry standards.

7.What is the process for return or replacement of ES3B R7G?

All ES3B R7G units undergo pre-shipment inspection (PSI). If there is an issue with ES3B 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 ES3B R7G part is unused and in its original packaging.

Return procedure for ES3B R7G:

1.Submit a request within 90 days.

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

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