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

Taiwan Semiconductor Corporation ES3FBHR5G

Name: ES3FBHR5G
Brand: Taiwan Semiconductor Corporation
SKU: ES3FBHR5G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3FBHR5G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES3FBHR5G.pdf

Description:: DIODE GEN PURP 300V 3A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:9,238

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Product details

Overview

ES3FBHR5G from Taiwan Semiconductor is a 3A, 400V 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; used in high-frequency switching power supplies for efficient AC/DC conversion.

For engineers reviewing the ES3FBHR5G datasheet, ES3FBHR5G pinout, ES3FBHR5G application, or ES3FBHR5G 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

This discrete silicon rectifier employs a glass-passivated PN junction optimized for high-speed switching in off-line SMPS and DC-DC converters. Its 35ns reverse recovery time minimizes switching losses during high-frequency operation, while the 0.98V forward voltage at rated current supports thermal efficiency under continuous 3A conduction.

The device operates across -55°C to +150°C junction temperature range and delivers 100A non-repetitive surge current capability. Thermal performance is characterized with R_θJL=24°C/W and R_θJC=26°C/W on standard 10mm×10mm PCB copper pads, enabling reliable power handling in compact layouts.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or output rectification circuits
I_F	3 A - Continuous average forward current; determines steady-state power delivery capacity at T_A=25°C
t_rr	35 ns - Reverse recovery time; enables efficient operation up to ~500 kHz switching frequencies with low turn-off loss
V_F @ 3A, 25°C	0.98 V - Forward voltage drop; directly impacts conduction loss and thermal rise in high-current paths
I_FSM	100 A - Non-repetitive peak forward surge current; supports inrush current tolerance during startup or fault conditions
R_θJA	84 °C/W - Junction-to-ambient thermal resistance; informs heatsinking requirements on standard FR-4 PCB
C_J @ 1MHz, 4V	41 pF - Junction capacitance; affects high-frequency noise coupling and EMI filter design in switching nodes

Pinout & Package

DO-214AA (SMB) surface-mount package with molded plastic body, matte tin-plated leads, and cathode band polarity marking. Weight: 0.110 g. UL 94V-0 rated molding compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of rectified path; must handle full load current and thermal dissipation
Cathode	Forward current exit point	Marked by band; connects to output rail or smoothing capacitor; carries same current as anode with polarity-defined conduction

Key Features

Feature	Design Value
Super fast recovery time	35 ns - Reduces switching loss and improves efficiency in high-frequency SMPS designs above 100 kHz
Glass passivated junction	Enhanced reliability and moisture resistance - Meets J-STD-020 Level 1 MSL for robust reflow compatibility
Low profile SMB package	3.7 mm height - Enables ultra-thin power adapter and LED driver PCBs without compromising thermal performance
Halogen-free construction	Complies with IEC 61249-2-21 - Supports RoHS-compliant and environmentally regulated end equipment

Applications

AC/DC Adapters	LED Lighting Drivers
Use Scenario: Compact wall-wart and USB-C PD adapters requiring high-efficiency secondary-side rectification. IC Role / Device Role / Timing Role: Output rectifier in flyback or QR controller-based topologies. Use Value: 35ns t_rr and 0.98V V_F reduce conduction and switching losses, improving efficiency over standard FR diodes.	Use Scenario: Constant-current LED drivers for commercial and industrial luminaires. IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated buck-boost or flyback LED drivers. Use Value: 400V V_RRM safely handles reflected transients in 230VAC-input systems with minimal derating.
Server PSU Rectification	Industrial DC-DC Converters
Use Scenario: High-density server power supplies where thermal management and footprint are critical. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant forward converters. Use Value: R_θJA=84°C/W and 150°C T_JMAX allow sustained 3A operation on standard PCB copper without heatsinks.	Use Scenario: Isolated DC-DC modules in programmable logic controllers and motor drives. IC Role / Device Role / Timing Role: Input or output rectifier in wide-input-range isolated converters. Use Value: 100A I_FSM withstands repeated inrush events during hot-swap or cold-start sequences.

AC/DC Adapters

LED Lighting Drivers

Use Scenario: Compact wall-wart and USB-C PD adapters requiring high-efficiency secondary-side rectification.

IC Role / Device Role / Timing Role: Output rectifier in flyback or QR controller-based topologies.

Use Value: 35ns t_rr and 0.98V V_F reduce conduction and switching losses, improving efficiency over standard FR diodes.

Use Scenario: Constant-current LED drivers for commercial and industrial luminaires.

IC Role / Device Role / Timing Role: Secondary-side rectifier in isolated buck-boost or flyback LED drivers.

Use Value: 400V V_RRM safely handles reflected transients in 230VAC-input systems with minimal derating.

Server PSU Rectification

Industrial DC-DC Converters

Use Scenario: High-density server power supplies where thermal management and footprint are critical.

IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant forward converters.

Use Value: R_θJA=84°C/W and 150°C T_JMAX allow sustained 3A operation on standard PCB copper without heatsinks.

Use Scenario: Isolated DC-DC modules in programmable logic controllers and motor drives.

IC Role / Device Role / Timing Role: Input or output rectifier in wide-input-range isolated converters.

Use Value: 100A I_FSM withstands repeated inrush events during hot-swap or cold-start sequences.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L04S	V_RRM=400V, I_F=3A, t_rr=30ns, VF=0.95V@3A - Slightly faster recovery but higher cost and different SMB variant footprint	Same 400V class; tighter t_rr spec suits >1 MHz resonant converters	Prefer when minimizing turn-off loss is critical and layout allows ST's specific leadform
SB340-E3/5BT	V_RRM=40V, I_F=3A, t_rr=35ns - Lower voltage rating limits use to low-voltage DC-DC outputs only	Not suitable for AC line-derived inputs; restricted to ≤40V secondary rails	Select only for low-V_OUT buck-derived supplies where 400V blocking is unnecessary

Compared with STTH3L04S and SB340-E3/5BT, ES3FBHR5G offers optimal balance of 400V blocking, 35ns recovery, and SMB footprint compatibility for mainstream 230VAC-input SMPS - delivering verified thermal performance and RoHS/halogen-free compliance without over-specifying voltage or cost.

Availability

ES3FBHR5G is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting drivers, and industrial DC-DC converters requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for ES3FBHR5G 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 management and industrial markets since 1979.

The ES3x series is part of TSC's high-reliability surface-mount rectifier product line, engineered specifically for high-frequency switching power supplies demanding low V_F, fast t_rr, and robust thermal performance in SMB packaging.

FAQ

What is the maximum junction temperature rating for ES3FBHR5G?

The ES3FBHR5G has a maximum junction temperature (T_JMAX) of +150°C, allowing operation in thermally constrained environments such as enclosed LED drivers or high-density server PSUs. This rating is validated per TSC's absolute maximum ratings table and supports continuous 3A conduction when PCB thermal design meets specified R_θJA=84°C/W conditions. The ES3FBHR5G maintains stable electrical parameters across its full -55°C to +150°C operating range.

Does ES3FBHR5G meet RoHS and halogen-free requirements?

Yes, ES3FBHR5G is RoHS compliant and halogen-free per IEC 61249-2-21. The device uses environmentally compliant molding compound and matte tin-plated leads, satisfying both regulatory and green manufacturing requirements for consumer, industrial, and medical-grade equipment. These certifications are documented in TSC's official product specification C2102 and verified through material declarations. The ES3FBHR5G is suitable for export to EU, Japan, and other regulated markets.

What is the reverse recovery time (t_rr) of ES3FBHR5G and how is it measured?

The ES3FBHR5G has a 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 TSC's electrical specifications. This value reflects the time required for the diode to transition from forward conduction to reverse blocking state, directly impacting switching loss in high-frequency converters. The ES3FBHR5G's 35 ns t_rr enables efficient operation in quasi-resonant and active-clamp topologies up to 500 kHz.

Can ES3FBHR5G replace ES3DB or ES3GB in existing designs?

ES3FBHR5G is not a direct replacement for ES3DB (200V) or ES3GB (500V) due to its specific 400V V_RRM rating. Substitution requires verification of voltage stress margins: ES3FBHR5G may be used in place of ES3DB only if system transients remain below 400V, and cannot substitute ES3GB where 500V blocking is mandated. The ES3FBHR5G shares identical SMB package, thermal characteristics, and pinout with both, but voltage rating must be validated per circuit requirements.

What is the forward voltage drop of ES3FBHR5G at 3A and 125°C?

At 3A forward current and 125°C junction temperature, the ES3FBHR5G exhibits a typical forward voltage drop (V_F) of 0.83V, with a maximum of 0.95V per TSC's electrical specifications. This reduced V_F versus room-temperature operation improves thermal stability in high-ambient environments. Designers should use this 125°C value for worst-case power loss calculation in the ES3FBHR5G, especially in sealed or high-temperature applications like outdoor LED drivers.

ES3FBHR5G 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):: 300 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 @ 300 V

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

ES3FBHR5G FAQ

1.How can I place an order for ES3FBHR5G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3FBHR5G 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 ES3FBHR5G reliable?

The price and inventory of ES3FBHR5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3FBHR5G is usually 5 days.

3.What payment methods are accepted for ES3FBHR5G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3FBHR5G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3FBHR5G?

ES3FBHR5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3FBHR5G 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 ES3FBHR5G?

For technical support, including ES3FBHR5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3FBHR5G requirements.

6.How does Aetrix verify that ES3FBHR5G is sourced from the original manufacturer or authorized distributors?

All ES3FBHR5G 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 ES3FBHR5G meets industry standards.

7.What is the process for return or replacement of ES3FBHR5G?

All ES3FBHR5G units undergo pre-shipment inspection (PSI). If there is an issue with ES3FBHR5G, 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 ES3FBHR5G part is unused and in its original packaging.

Return procedure for ES3FBHR5G:

1.Submit a request within 90 days.

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

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