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

Taiwan Semiconductor Corporation ES3GB R5G

Name: ES3GB R5G
Brand: Taiwan Semiconductor Corporation
SKU: ES3GB R5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3GB R5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES3GB R5G.pdf

Description:: DIODE GEN PURP 400V 3A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:6,988

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Product details

Overview

ES3GB R5G from Taiwan Semiconductor is a 400V, 3A super fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 35ns reverse recovery time, 0.98V forward voltage at 3A/25°C, and 100A surge current capability - deployed in high-frequency switching power supplies and LED drivers.

For engineers reviewing the ES3GB R5G datasheet, ES3GB R5G pinout, ES3GB R5G application, or ES3GB R5G equivalent, key selection criteria include V_RRM = 400V, I_F = 3A, t_rr = 35ns, thermal resistance R_θJA = 84°C/W, and SMB package compatibility with automated SMT assembly.

Technical Context

The ES3GB R5G is a single-die, glass-passivated silicon junction rectifier optimized for high-efficiency SMPS operation above 50kHz. Its super-fast recovery (t_rr ≤ 35ns) minimizes switching losses during turn-off, while low forward voltage (V_F = 0.98V @ 3A, 25°C) reduces conduction loss under continuous load.

Thermally, it delivers R_θJL = 24°C/W and R_θJC = 26°C/W when mounted on a 10mm × 10mm Cu pad, enabling stable operation up to T_J = 150°C. Reverse leakage remains ≤10µA at 25°C and ≤100µA at 125°C under rated V_R.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/clamp circuits
I_F	3 A - Continuous average forward current; supports 36W+ output in 12V/3A SMPS designs
t_rr	35 ns - Ultra-fast reverse recovery; enables >100kHz switching without excessive diode loss or EMI
V_F @ 3A, 25°C	0.98 V - Low conduction drop; reduces power dissipation to ~2.94W at full load
I_FSM	100 A - Non-repetitive surge rating; withstands inrush currents in AC-DC front-end stages
T_J max	150 °C - Maximum junction temperature; allows operation in enclosed industrial power enclosures
C_J @ 1MHz, 4V	41 pF - Low junction capacitance; limits displacement current and improves high-frequency noise immunity

Pinout & Package

Package: DO-214AA (SMB), surface-mount, low-profile plastic case with matte tin-plated leads; polarity indicated by cathode band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to transformer secondary or switch node; must handle 3A DC + ripple
Cathode	Forward current exit / reverse blocking terminal	Connected to output capacitor; cathode band marks this terminal for PCB layout verification

Key Features

Feature	Design Value
Glass passivated junction	Enhances long-term reliability and moisture resistance (MSL Level 1 per J-STD-020)
Super fast recovery (t_rr ≤ 35ns)	Reduces switching loss and EMI generation in high-frequency converters (>100kHz)
DO-214AA (SMB) package	Enables automated pick-and-place; footprint compatible with industry-standard SMB land patterns
RoHS & halogen-free	Meets IEC 61249-2-21 and EU RoHS directives for environmentally compliant manufacturing

Applications

Switching Mode Power Supply (SMPS)	LED Lighting Driver
Use Scenario: Secondary-side rectification in 65–150W offline flyback or forward converters. IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A DC with minimal voltage drop and fast turn-off. Use Value: 0.98V V_F at 3A reduces conduction loss by ~15% vs. standard FR30x series, improving efficiency by 0.4–0.7%.	Use Scenario: Constant-current rectification in isolated LED drivers for commercial lighting. IC Role / Device Role / Timing Role: High-reliability output diode in 30–100W drivers operating at 60–132kHz. Use Value: 35ns t_rr prevents reverse recovery tail current from distorting current regulation loop stability.
AC-DC Adapter	DC-DC Converter
Use Scenario: Output rectification in universal-input (90–264VAC) 12V/2.5A adapters. IC Role / Device Role / Timing Role: Primary output diode subjected to repeated 100Hz ripple and high-frequency switching transients. Use Value: 100A I_FSM safely absorbs line surges and startup inrush without degradation.	Use Scenario: Isolated secondary rectification in telecom DC-DC modules (e.g., 48V-to-12V). IC Role / Device Role / Timing Role: Fast-recovery diode in synchronous rectifier-assisted topologies requiring low Q_rr. Use Value: 41pF C_J minimizes capacitive coupling into control circuitry, reducing gate drive noise susceptibility.

Switching Mode Power Supply (SMPS)

LED Lighting Driver

Use Scenario: Secondary-side rectification in 65–150W offline flyback or forward converters.

IC Role / Device Role / Timing Role: Output rectifier handling continuous 3A DC with minimal voltage drop and fast turn-off.

Use Value: 0.98V V_F at 3A reduces conduction loss by ~15% vs. standard FR30x series, improving efficiency by 0.4–0.7%.

Use Scenario: Constant-current rectification in isolated LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: High-reliability output diode in 30–100W drivers operating at 60–132kHz.

Use Value: 35ns t_rr prevents reverse recovery tail current from distorting current regulation loop stability.

AC-DC Adapter

DC-DC Converter

Use Scenario: Output rectification in universal-input (90–264VAC) 12V/2.5A adapters.

IC Role / Device Role / Timing Role: Primary output diode subjected to repeated 100Hz ripple and high-frequency switching transients.

Use Value: 100A I_FSM safely absorbs line surges and startup inrush without degradation.

Use Scenario: Isolated secondary rectification in telecom DC-DC modules (e.g., 48V-to-12V).

IC Role / Device Role / Timing Role: Fast-recovery diode in synchronous rectifier-assisted topologies requiring low Q_rr.

Use Value: 41pF C_J minimizes capacitive coupling into control circuitry, reducing gate drive noise susceptibility.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04	V_RRM = 400V, t_rr = 30ns, V_F = 1.05V @ 3A - slightly faster but higher V_F	Better for ultra-high-frequency (>200kHz) designs where t_rr dominates loss	Prefer ES3GB R5G where lower V_F and cost sensitivity outweigh marginal t_rr gain
ON Semi MUR340	V_RRM = 400V, t_rr = 35ns, V_F = 1.15V @ 3A - same t_rr, higher V_F, larger thermal resistance	Higher conduction loss and less thermal margin in compact layouts	ES3GB R5G offers 0.17V lower V_F and 10°C/W lower R_θJA, improving thermal headroom

Compared with STTH3L04 and MUR340, the ES3GB R5G delivers optimal balance of low forward voltage (0.98V), proven 35ns recovery, and superior thermal performance (R_θJA = 84°C/W), making it preferred for space-constrained, efficiency-critical 400V rectification.

Availability

ES3GB R5G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and AC-DC adapters requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for ES3GB R5G 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, automotive, and industrial markets since 1979.

The ES3GB R5G belongs to TSC's ES3x Super Fast Rectifier product line, engineered specifically for high-efficiency, high-frequency AC-DC and DC-DC conversion where low V_F, fast t_rr, and robust thermal behavior are critical.

FAQ

What is the maximum junction temperature rating for the ES3GB R5G?

The ES3GB R5G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows reliable operation in thermally demanding environments such as enclosed power supplies or high-ambient industrial settings. Derating curves confirm usable current capacity down to 1.8A at 100°C ambient on standard PCB mounting. The ES3GB R5G must not exceed this limit to maintain long-term reliability and parametric stability.

Does the ES3GB R5G have a halogen-free and RoHS-compliant construction?

Yes, the ES3GB R5G is both RoHS compliant and halogen-free per IEC 61249-2-21, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated for lead-free solderability. These compliance attributes are certified for the ES3GB R5G part number and verified in production lot documentation. The ES3GB R5G satisfies environmental requirements for consumer, industrial, and medical-grade equipment.

What is the reverse recovery time (t_rr) specification for the ES3GB R5G?

The ES3GB R5G has a maximum reverse recovery time (t_rr) of 35 ns, measured under conditions of I_F = 0.5A, I_R = 1.0A, and I_RR = 0.25A, per the Electrical Specifications table in the official datasheet. This value is confirmed across the ES3FB–ES3GB group and reflects true super-fast switching performance. The ES3GB R5G achieves this with low stored charge, enabling efficient operation in high-frequency SMPS designs without excessive switching loss or ringing.

Is the ES3GB R5G supplied in tape-and-reel packaging?

Yes, the ES3GB R5G is supplied in tape-and-reel packaging at 3,000 units per reel, as specified in the Ordering Information section of the Taiwan Semiconductor datasheet. This format supports automated SMT placement and is standard for DO-214AA (SMB) devices. Reel dimensions and orientation comply with EIA-481-D standards, and the ES3GB R5G marking code ("ES3GB") is laser-printed on each unit for traceability. Aetrix Electronics ships only factory-original reels with full lot traceability.

What is the forward voltage (V_F) of the ES3GB R5G at 3A and 25°C?

The forward voltage (V_F) of the ES3GB R5G is 0.98 V maximum at I_F = 3.0 A and T_J = 25°C, per the Electrical Specifications table. This value is specific to the ES3FB–ES3GB subgroup and reflects typical performance under pulsed test conditions (PW = 0.3ms). At elevated temperatures (125°C), V_F drops to 0.83–0.95 V, confirming favorable temperature coefficient. The ES3GB R5G maintains this low V_F across production lots, contributing directly to system-level efficiency gains.

ES3GB R5G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AA, SMB

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:: 1.13 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 R5G FAQ

1.How can I place an order for ES3GB R5G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3GB R5G 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 R5G reliable?

The price and inventory of ES3GB R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3GB R5G is usually 5 days.

3.What payment methods are accepted for ES3GB R5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3GB R5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3GB R5G?

ES3GB R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3GB R5G 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 R5G?

For technical support, including ES3GB R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3GB R5G requirements.

6.How does Aetrix verify that ES3GB R5G is sourced from the original manufacturer or authorized distributors?

All ES3GB R5G 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 R5G meets industry standards.

7.What is the process for return or replacement of ES3GB R5G?

All ES3GB R5G units undergo pre-shipment inspection (PSI). If there is an issue with ES3GB R5G, 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 R5G part is unused and in its original packaging.

Return procedure for ES3GB R5G:

1.Submit a request within 90 days.

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

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