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

Taiwan Semiconductor Corporation ES3GB-A

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

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Part No.:: ES3GB-A

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES3GB-A.pdf

Description:: 35NS, 3A, 400V, SUPER FAST RECOV

Quantity:: RFQ Add To RFQ list

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Inventory:3,607

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Product details

Overview

ES3GB-A from Taiwan Semiconductor is a 3A, 400V super fast surface-mount rectifier in DO-214AA (SMB) package, featuring 1.10V max forward voltage at 3.0A/25°C, 35ns reverse recovery time, and 37pF junction capacitance - deployed in DC-DC converters and switching-mode inverters for high-efficiency power conversion.

For engineers reviewing the ES3GB-A datasheet, ES3GB-A pinout, ES3GB-A application, or ES3GB-A equivalent, key selection criteria include V_RRM = 400V, I_F = 3A continuous, t_rr ≤ 35ns, thermal resistance R_θJL = 20°C/W, and DO-214AA mechanical compatibility with automated SMT assembly.

Technical Context

The ES3GB-A is a single-die, glass-passivated silicon rectifier optimized for high-frequency switching applications. Its 400V repetitive peak reverse voltage and 35ns reverse recovery time enable efficient operation in SMPS topologies where rapid turn-off minimizes switching losses.

Thermal performance is defined by R_θJL = 20°C/W and R_θJA = 78°C/W on a 10mm × 10mm Cu pad PCB, supporting sustained 3A conduction up to T_J = 150°C. Low leakage (≤5µA @ 25°C, ≤100µA @ 125°C) ensures stable blocking under elevated temperature conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage the device blocks reliably in circuit
I_F	3 A - Continuous forward current rating at T_A = 25°C, defining steady-state power handling
t_rr	35 ns - Reverse recovery time at I_F = 0.5A, I_R = 1.0A, critical for high-frequency switching efficiency
V_F (max)	1.25 V - Max forward voltage drop at I_F = 3.0A and T_J = 25°C, directly impacts conduction loss
C_J	37 pF - Junction capacitance at 1MHz/4V, influences high-frequency noise and snubber design
R_θJL	20 °C/W - Junction-to-lead thermal resistance, determines heat transfer path to PCB copper
I_FSM	80 A - Non-repetitive surge current capability (8.3ms half-sine), supports inrush and fault tolerance

Pinout & Package

Package: DO-214AA (SMB) - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, polarity indicated by cathode band, weight ≈ 0.090g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of rectified path; must handle full I_F and I_FSM currents
Cathode	Forward current exit / reverse blocking terminal	Marked by band; carries full output current and sustains V_RRM during off-state

Key Features

Feature	Design Value
Glass passivated chip junction	Enhances long-term reliability and moisture resistance per J-STD-020 Level 1 MSL
Super fast recovery (t_rr ≤ 35ns)	Reduces switching losses in 100kHz–500kHz SMPS designs versus standard rectifiers
Low forward voltage (V_F = 1.10V typ @ 3A/25°C)	Lowers conduction loss and thermal stress in compact, thermally constrained layouts
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and environmental compliance requirements for industrial and consumer end equipment

Applications

DC-DC Converter	Switching Inverter
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48V outputs. IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary to regulated DC output. Use Value: 35ns t_rr and low V_F minimize switching and conduction losses, improving overall converter efficiency >90%.	Use Scenario: Output stage freewheeling and anti-parallel clamping in H-bridge motor inverters. IC Role / Device Role / Timing Role: Fast-recovery diode providing low-loss current recirculation during PWM dead-time intervals. Use Value: 400V V_RRM and 80A I_FSM support 24–48V battery-fed inverters driving BLDC or stepper motors.
Freewheeling Diode	Switch-Mode Power Supply
Use Scenario: Inductive load protection in solenoid drivers, relay coils, and buck regulator synchronous rectifier catch paths. IC Role / Device Role / Timing Role: Freewheeling path for stored inductor energy during switch-off transitions. Use Value: 35ns t_rr prevents reverse recovery current spikes that could cause MOSFET shoot-through or EMI.	Use Scenario: Input bridge or output rectification in compact AC-DC adapters and telecom PSUs. IC Role / Device Role / Timing Role: High-current, high-voltage rectifier operating at 50–300kHz switching frequencies. Use Value: DO-214AA package enables automated placement; R_θJL = 20°C/W supports thermal management without heatsinks at 3A loads.

DC-DC Converter

Switching Inverter

Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 12–48V outputs.

IC Role / Device Role / Timing Role: Power rectifier converting high-frequency AC from transformer secondary to regulated DC output.

Use Value: 35ns t_rr and low V_F minimize switching and conduction losses, improving overall converter efficiency >90%.

Use Scenario: Output stage freewheeling and anti-parallel clamping in H-bridge motor inverters.

IC Role / Device Role / Timing Role: Fast-recovery diode providing low-loss current recirculation during PWM dead-time intervals.

Use Value: 400V V_RRM and 80A I_FSM support 24–48V battery-fed inverters driving BLDC or stepper motors.

Freewheeling Diode

Switch-Mode Power Supply

Use Scenario: Inductive load protection in solenoid drivers, relay coils, and buck regulator synchronous rectifier catch paths.

IC Role / Device Role / Timing Role: Freewheeling path for stored inductor energy during switch-off transitions.

Use Value: 35ns t_rr prevents reverse recovery current spikes that could cause MOSFET shoot-through or EMI.

Use Scenario: Input bridge or output rectification in compact AC-DC adapters and telecom PSUs.

IC Role / Device Role / Timing Role: High-current, high-voltage rectifier operating at 50–300kHz switching frequencies.

Use Value: DO-214AA package enables automated placement; R_θJL = 20°C/W supports thermal management without heatsinks at 3A loads.

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, I_F = 3A, t_rr = 30ns, VF = 1.15V max @ 3A/25°C, DO-214AA	Slightly faster t_rr, marginally higher V_F; identical package and thermal specs	Preferred where <30ns recovery is required; verify layout compatibility with same footprint
SB340	V_RRM = 40V, I_F = 3A, t_rr = 35ns, VF = 0.55V max @ 3A/25°C, DO-214AA	Lower voltage rating (40V vs. 400V); unsuitable for 400V blocking; better conduction loss at low V_R	Only viable in sub-40V systems; not interchangeable in 400V applications due to V_RRM mismatch

Compared with STTH3L04 and SB340, the ES3GB-A delivers optimal balance of 400V blocking, 35ns recovery, and 1.25V V_F max in DO-214AA - making it suitable for 48V–380V DC-link rectification where voltage headroom and thermal robustness are critical.

Availability

ES3GB-A is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, freewheeling circuits, and switch-mode power supplies requiring stable component supply across industrial, telecom, and embedded power designs.

Supply support for ES3GB-A 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-A belongs to TSC's ES3x-A super fast rectifier family, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained SMT applications demanding low t_rr, stable V_F, and robust thermal performance.

FAQ

What is the maximum junction temperature rating for the ES3GB-A?

The ES3GB-A has a maximum junction temperature (T_J) rating of +150°C, with an operational storage temperature range of −55°C to +150°C. This allows reliable use in high-ambient environments such as enclosed power supplies or industrial motor drives, provided thermal design maintains junction temperature within this limit using the specified R_θJL = 20°C/W path. The ES3GB-A datasheet confirms this rating under Absolute Maximum Ratings.

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

Yes, the ES3GB-A is both RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability standards, and terminals are matte tin plated for solderability per J-STD-002. These material specifications are explicitly stated in the "Features" section of the official Taiwan Semiconductor ES3DB-A–ES3JB-A datasheet (Version C2102).

What is the reverse recovery time (t_rr) specification for the ES3GB-A, and under what test conditions?

The ES3GB-A has a maximum reverse recovery time (t_rr) of 35 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_RR = 0.25 A. This value is confirmed in the Electrical Specifications table of the ES3DB-A–ES3JB-A datasheet. It reflects the device's suitability for high-frequency switching applications where fast turn-off minimizes switching losses.

Can the ES3GB-A be used as a direct replacement for the ES3DB-A or ES3JB-A in existing designs?

No - the ES3GB-A is not a direct replacement for ES3DB-A (200V) or ES3JB-A (600V) due to its specific 400V V_RRM rating. Substituting requires verification of voltage margin, forward voltage impact on thermal design, and junction capacitance (37pF vs. 57pF for ES3DB-A and 24pF for ES3JB-A). The ES3GB-A must be selected based on system-level voltage and timing requirements, not interchangeably.

What is the marking code printed on the ES3GB-A device body?

The ES3GB-A is marked with "ES3GB" on its package body, as specified in the Absolute Maximum Ratings table of the Taiwan Semiconductor datasheet. This marking distinguishes it from other variants in the ES3x-A family (e.g., ES3DB for 200V, ES3JB for 600V) and aligns with the ordering code convention where "x" denotes the voltage grade.

ES3GB-A 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:: 1.25 V @ 3 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 37pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES3GB-A FAQ

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

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

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

3.What payment methods are accepted for ES3GB-A?

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

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3GB-A?

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

Once your ES3GB-A 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-A?

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

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

All ES3GB-A 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-A meets industry standards.

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

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

Return procedure for ES3GB-A:

1.Submit a request within 90 days.

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

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