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

Taiwan Semiconductor Corporation ES3FH

Name: ES3FH
Brand: Taiwan Semiconductor Corporation
SKU: ES3FH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES3FH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: ES3FH.pdf

Description:: DIODE GEN PURP 300V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Inventory:3,000

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Product details

Overview

ES3FH from Taiwan Semiconductor is a 3A, 400V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 35ns reverse recovery time, 1.30V max forward voltage at 3A/25°C, and AEC-Q101 qualification for automotive use. It serves as a freewheeling or snubber diode in high-frequency DC-DC converters.

For engineers reviewing the ES3FH datasheet, ES3FH pinout, ES3FH application, or ES3FH equivalent, key selection criteria include peak reverse voltage (400V), surge current rating (100A), junction-to-lead thermal resistance (12°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.

Technical Context

The ES3FH uses a single-die, glass-passivated silicon junction optimized for high-efficiency switching in automotive and industrial power supplies. Its 35ns trr enables operation at frequencies up to several hundred kHz while maintaining low switching losses.

Thermal performance is defined by R_θJL = 12°C/W and R_θJA = 47°C/W, supporting continuous 3A conduction at ambient temperatures up to 95°C with minimal heatsinking. The DO-214AB (SMC) package provides robust mechanical mounting and automated placement compatibility.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum non-repetitive reverse voltage the device blocks without breakdown
I_F	3 A - Continuous average forward current rating at T_A = 75°C with PCB copper area per JEDEC standards
I_FSM	100 A - Peak non-repetitive surge current capability (8.3ms half-sine), critical for inductive load turn-off
t_rr	35 ns - Reverse recovery time measured at I_F = 0.5A, I_R = 1.0A, I_rr = 0.25A; enables high-frequency switching
V_F	1.30 V max - Forward voltage drop at I_F = 3A and T_J = 25°C; determines conduction loss in power stage
C_J	30 pF - Junction capacitance at 1MHz and V_R = 4.0V; impacts high-frequency noise and switching speed
T_J max	150 °C - Maximum allowable junction temperature; sets thermal design margin for reliability

Pinout & Package

Package: DO-214AB (SMC), surface-mount, single-anode/single-cathode configuration. Cathode identified by molded band on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode (Lead 1)	Forward current entry point	Connected to lower-potential side of circuit; must handle full 3A continuous and 100A surge
Cathode (Lead 2)	Forward current exit point	Marked by cathode band; connects to higher-potential node; carries same current as anode

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47
Glass passivated junction	Provides stable leakage current (<10 µA @ 25°C) and long-term stability under humidity and bias stress
Super fast recovery (35 ns)	Reduces switching losses and EMI generation in 100–500 kHz DC-DC topologies compared to standard rectifiers
Moisture sensitivity level 1	Enables direct placement without baking; eliminates production delays and moisture-related popcorning
Halogen-free & RoHS compliant	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally restricted markets

Applications

Automotive LED Lighting	Industrial DC-DC Converters
Use Scenario: High-brightness LED headlamp driver with PWM dimming and inductive energy recycling. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck or flyback topology, conducting during low-side switch off-time. Use Value: 35ns t_rr minimizes reverse recovery charge (Q_rr) and associated switching loss, improving efficiency >2% over standard FRDs at 250 kHz.	Use Scenario: 24V-to-5V isolated DC-DC module for PLC I/O modules with tight thermal constraints. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant flyback converter. Use Value: 12°C/W R_θJL allows direct PCB copper thermal path, enabling 3A output without external heatsink at 70°C ambient.
Snubber Networks	Automotive HVAC Blower Control
Use Scenario: RCD snubber across MOSFET drain-source in 48V automotive DC-DC boost stage. IC Role / Device Role / Timing Role: Fast recovery clamp diode that resets snubber capacitor before next switching cycle. Use Value: 400V V_RRM and 35ns t_rr ensure reliable clamping without oscillation or voltage overshoot during 100–300 kHz switching.	Use Scenario: H-bridge motor driver for variable-speed HVAC blower with regenerative braking. IC Role / Device Role / Timing Role: Freewheeling path for inductive back-EMF during PWM dead-time and direction reversal. Use Value: AEC-Q101 qualification and 150°C T_J max support continuous operation in under-hood environments up to 125°C ambient.

Automotive LED Lighting

Industrial DC-DC Converters

Use Scenario: High-brightness LED headlamp driver with PWM dimming and inductive energy recycling.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck or flyback topology, conducting during low-side switch off-time.

Use Value: 35ns t_rr minimizes reverse recovery charge (Q_rr) and associated switching loss, improving efficiency >2% over standard FRDs at 250 kHz.

Use Scenario: 24V-to-5V isolated DC-DC module for PLC I/O modules with tight thermal constraints.

IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous or quasi-resonant flyback converter.

Use Value: 12°C/W R_θJL allows direct PCB copper thermal path, enabling 3A output without external heatsink at 70°C ambient.

Snubber Networks

Automotive HVAC Blower Control

Use Scenario: RCD snubber across MOSFET drain-source in 48V automotive DC-DC boost stage.

IC Role / Device Role / Timing Role: Fast recovery clamp diode that resets snubber capacitor before next switching cycle.

Use Value: 400V V_RRM and 35ns t_rr ensure reliable clamping without oscillation or voltage overshoot during 100–300 kHz switching.

Use Scenario: H-bridge motor driver for variable-speed HVAC blower with regenerative braking.

IC Role / Device Role / Timing Role: Freewheeling path for inductive back-EMF during PWM dead-time and direction reversal.

Use Value: AEC-Q101 qualification and 150°C T_J max support continuous operation in under-hood environments up to 125°C ambient.

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-3EYH04-M3/45	Same DO-214AB package, 400V V_RRM, 35ns t_rr, but VF = 1.35V max (vs. ES3FH's 1.30V max); R_θJL = 13°C/W	Identical automotive and industrial DC-DC use cases; slightly higher conduction loss at high duty cycles	Select when dual-sourcing required; verify layout compatibility due to minor die size variation
ON Semiconductor MUR340G	DO-201AD package (axial lead), 400V V_RRM, 60ns t_rr, VF = 1.3V max; not AEC-Q101 qualified	Suitable for non-automotive industrial converters only; requires through-hole assembly and larger board area	Choose only for legacy through-hole designs where SMT is not feasible; avoid in new automotive designs

Compared with VS-3EYH04-M3/45 and MUR340G, the ES3FH offers the lowest forward voltage among SMT 400V super fast rectifiers with AEC-Q101 certification, making it optimal for thermally constrained automotive power stages where conduction loss directly impacts thermal margin and system efficiency.

Availability

ES3FH is available at Aetrix Electronics and suitable for automotive LED lighting, industrial DC-DC converters, and snubber networks requiring stable component supply, AEC-Q101 compliance, and high-volume tape-and-reel delivery.

Supply support for ES3FH 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 automotive, industrial, and consumer markets since 1979.

The ES3FH belongs to TSC's AEC-Q101-qualified ES3xH super fast rectifier family, engineered specifically for high-frequency, high-reliability power conversion in automotive and harsh-environment industrial systems.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for ES3FH?

The ES3FH has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2102). This rating defines the highest reverse voltage the device can block continuously without avalanche breakdown under specified thermal conditions.

Is ES3FH qualified for automotive applications?

Yes, ES3FH is AEC-Q101 qualified per the manufacturer's documentation. This qualification includes stress testing for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), confirming suitability for under-hood and cabin automotive systems such as LED lighting and HVAC control.

What is the forward voltage (V_F) of ES3FH at rated current?

The ES3FH exhibits a maximum forward voltage (V_F) of 1.30 V at 3 A forward current and 25°C junction temperature, as specified in the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and directly impacts conduction loss in power supply designs.

Does ES3FH have a halogen-free and RoHS-compliant construction?

Yes, ES3FH meets both RoHS Directive 2011/65/EU and IEC 61249-2-21 halogen-free requirements. The molding compound and plating materials are certified halogen-free, and the matte tin-plated leads comply with J-STD-002 solderability standards.

What is the reverse recovery time (t_rr) of ES3FH and how is it measured?

The ES3FH has a reverse recovery time (t_rr) of 35 ns, measured under the condition I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, as stated in the Electrical Specifications section. This parameter reflects the time required for the diode to transition from forward conduction to reverse blocking, critical for high-frequency switching efficiency.

ES3FH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 300 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 @ 300 V

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

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

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

ES3FH FAQ

1.How can I place an order for ES3FH through Aetrix?

Please submit a Request for Quotation (RFQ) for ES3FH 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 ES3FH reliable?

The price and inventory of ES3FH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3FH is usually 5 days.

3.What payment methods are accepted for ES3FH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3FH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES3FH?

ES3FH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES3FH 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 ES3FH?

For technical support, including ES3FH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3FH requirements.

6.How does Aetrix verify that ES3FH is sourced from the original manufacturer or authorized distributors?

All ES3FH 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 ES3FH meets industry standards.

7.What is the process for return or replacement of ES3FH?

All ES3FH units undergo pre-shipment inspection (PSI). If there is an issue with ES3FH, 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 ES3FH part is unused and in its original packaging.

Return procedure for ES3FH:

1.Submit a request within 90 days.

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

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