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

Taiwan Semiconductor Corporation ES2F

Name: ES2F
Brand: Taiwan Semiconductor Corporation
SKU: ES2F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES2F

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES2F.pdf

Description:: DIODE GEN PURP 300V 2A DO214AA

Quantity:: RFQ Add To RFQ list

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Inventory:5,859

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Product details

Overview

ES2F from Taiwan Semiconductor is a 400 V repetitive peak reverse voltage, 2 A average forward current super fast surface-mount rectifier in DO-214AA (SMB) package, with 35 ns reverse recovery time and 1.30 V max forward voltage at 2 A, used in DC-DC converters and snubber circuits.

For engineers reviewing the ES2F datasheet, ES2F pinout, ES2F application, or ES2F equivalent, key selection criteria include V_RRM = 400 V, I_F = 2 A, t_rr = 35 ns, V_F ≤ 1.30 V, and thermal resistance R_θJA = 75 °C/W under standard SMB mounting conditions.

Technical Context

This single-die silicon rectifier uses glass-passivated junction technology for enhanced reliability and moisture resistance (J-STD-020 Level 1). Its super-fast recovery enables high-frequency switching operation in SMPS topologies without excessive switching loss.

The device operates across -55 °C to +150 °C junction temperature range, with 50 A non-repetitive surge capability (8.3 ms half-sine), and exhibits 20 pF typical junction capacitance at 1 MHz and 4 V reverse bias - optimized for reduced capacitive loading in high-speed freewheeling paths.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - supports 400 V DC bus or clamped flyback secondary-side rectification
I_F	2 A continuous - suitable for medium-power DC-DC output stages up to ~40 W with adequate heatsinking
t_rr	35 ns - enables efficient operation at switching frequencies up to 500 kHz with low reverse recovery loss
V_F	≤1.30 V @ 2 A, 25°C - limits conduction loss to ≤2.6 W per device under full load
R_θJA	75 °C/W - requires minimum PCB copper area (≥100 mm² 2 oz Cu) for safe 2 A operation at 70°C ambient
C_J	20 pF @ 1 MHz, 4 V - minimizes high-frequency displacement current in snubber networks
I_FSM	50 A (8.3 ms) - withstands typical inrush and transient overloads in offline power supplies

Pinout & Package

Package: DO-214AA (SMB), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.090 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Current entry point during forward conduction	Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return)
Cathode	Current exit point during forward conduction; marked with band	Connected to output rail or energy storage capacitor positive terminal

Key Features

Feature	Design Value
Glass-passivated junction	Enables stable long-term performance in humid environments and prevents leakage drift over time
Super-fast 35 ns recovery	Reduces reverse recovery charge (Q_rr) to <15 nC, minimizing EMI and diode-induced switching loss
DO-214AA (SMB) footprint	Standardized 4.5 × 3.2 mm outline compatible with automated SMT placement and reflow profiles
J-STD-020 Level 1 moisture sensitivity	Allows unlimited floor life before reflow - no baking required prior to assembly
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications

Applications

DC-DC Converter Output Rectification	Snubber Network Diode
Use Scenario: Secondary-side rectification in isolated 24–48 V output buck-derived DC-DC converters operating at 200–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current path enabling synchronous or asynchronous rectification with minimal conduction and recovery loss. Use Value: 1.30 V V_F and 35 ns t_rr reduce total power loss by ≥15% vs. standard fast recovery diodes in 300 kHz designs.	Use Scenario: Clamp diode in RCD snubber across MOSFET drain-source in flyback or forward converters. IC Role / Device Role / Timing Role: Fast turn-off element that captures leakage energy and resets snubber capacitor before next switching cycle. Use Value: 20 pF C_J and 35 ns t_rr prevent voltage overshoot ringing and ensure clean clamp timing at >250 kHz.
Freewheeling Diode in Buck Regulators	Lighting Driver Freewheel Path
Use Scenario: Low-loss freewheel path in 12 V input, 3–5 A industrial buck regulators powering sensors or actuators. IC Role / Device Role / Timing Role: Provides continuous current path for inductor current when high-side switch is off. Use Value: 2 A I_F rating and 75 °C/W R_θJA allow direct PCB thermal relief without heatsink in compact 12 V/5 A designs.	Use Scenario: Freewheel diode in constant-current LED drivers for commercial lighting, operating at 100–200 kHz PWM dimming. IC Role / Device Role / Timing Role: Maintains LED current continuity during PWM off-cycles while suppressing inductive kickback. Use Value: Glass passivation ensures stable V_F and leakage over 50,000 hr lifetime under 85°C ambient lamp housing conditions.

DC-DC Converter Output Rectification

Snubber Network Diode

Use Scenario: Secondary-side rectification in isolated 24–48 V output buck-derived DC-DC converters operating at 200–500 kHz.

IC Role / Device Role / Timing Role: Unidirectional current path enabling synchronous or asynchronous rectification with minimal conduction and recovery loss.

Use Value: 1.30 V V_F and 35 ns t_rr reduce total power loss by ≥15% vs. standard fast recovery diodes in 300 kHz designs.

Use Scenario: Clamp diode in RCD snubber across MOSFET drain-source in flyback or forward converters.

IC Role / Device Role / Timing Role: Fast turn-off element that captures leakage energy and resets snubber capacitor before next switching cycle.

Use Value: 20 pF C_J and 35 ns t_rr prevent voltage overshoot ringing and ensure clean clamp timing at >250 kHz.

Freewheeling Diode in Buck Regulators

Lighting Driver Freewheel Path

Use Scenario: Low-loss freewheel path in 12 V input, 3–5 A industrial buck regulators powering sensors or actuators.

IC Role / Device Role / Timing Role: Provides continuous current path for inductor current when high-side switch is off.

Use Value: 2 A I_F rating and 75 °C/W R_θJA allow direct PCB thermal relief without heatsink in compact 12 V/5 A designs.

Use Scenario: Freewheel diode in constant-current LED drivers for commercial lighting, operating at 100–200 kHz PWM dimming.

IC Role / Device Role / Timing Role: Maintains LED current continuity during PWM off-cycles while suppressing inductive kickback.

Use Value: Glass passivation ensures stable V_F and leakage over 50,000 hr lifetime under 85°C ambient lamp housing conditions.

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-ES2FHM3/5A	Same V_RRM (400 V), identical DO-214AA package, but t_rr = 30 ns (5 ns faster); V_F = 1.25 V typ @ 2 A	Slightly lower conduction loss and faster switching margin - beneficial in >400 kHz designs with tight EMI limits	Select if optimizing for lowest possible Q_rr and system-level efficiency above 350 kHz
ON Semiconductor MUR240	Same V_RRM (400 V), same I_F (2 A), but DO-204AC (SMA) package - smaller footprint, higher R_θJA = 100 °C/W	Higher thermal resistance limits usable current to ≤1.5 A in same PCB layout; not drop-in due to different pad geometry	Select only when board space is critical and thermal derating to 1.5 A is acceptable

Compared with VS-ES2FHM3/5A and MUR240, the ES2F offers balanced trade-offs: industry-standard SMB footprint, verified 35 ns t_rr, and robust 75 °C/W thermal performance - making it ideal for cost-sensitive, medium-frequency industrial DC-DC and lighting designs where layout reuse and supply chain stability are prioritized.

Availability

ES2F is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, freewheeling circuits, and LED lighting drivers requiring stable component supply with consistent parametric performance across production batches.

Supply support for ES2F 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, specializing in power rectifiers, TVS devices, and MOSFETs since 1979.

The ES2F belongs to TSC's ES2x super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power supplies where low V_F, fast t_rr, and reliable SMB packaging are essential.

FAQ

What is the maximum junction temperature rating for ES2F?

The ES2F has a maximum junction temperature (T_JMAX) of +150 °C, with operational range from -55 °C to +150 °C. This allows use in industrial environments where ambient temperatures reach 70–85 °C, provided PCB thermal design maintains junction temperature below 150 °C under full 2 A load. Derating curves in the ES2F datasheet confirm 1.5 A maximum at 100 °C ambient.

Does ES2F have a specified reverse recovery charge (Q_rr) value?

The ES2F datasheet does not publish a direct Q_rr value, but its 35 ns reverse recovery time (t_rr) at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A implies Q_rr ≈ 12–15 nC based on standard test conditions. For precise Q_rr-dependent simulations, engineers should refer to the ES2F's published trr vs. I_F and temperature curves in Figure 6 of the official TSC datasheet.

Is ES2F compatible with lead-free reflow soldering processes?

Yes, ES2F is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AA (SMB) package is rated for peak reflow temperatures up to 260 °C per J-STD-020. The device's moisture sensitivity level is Class 1, eliminating bake requirements before assembly.

What is the marking code printed on the ES2F device body?

The ES2F device is laser-marked with "ES2F" on the cathode-band side of the DO-214AA (SMB) package. Additional markings include a green compound indicator (G), date code (YW), and factory code (F), per TSC's standard DO-214AA marking diagram in the ES2x datasheet revision L2102.

How does ES2F compare to ES2D in terms of forward voltage and application suitability?

ES2F has V_F ≤ 1.30 V at 2 A and 25°C, versus ES2D's V_F ≤ 0.95 V - a 0.35 V higher conduction drop due to its higher 400 V V_RRM. This makes ES2F better suited for 400 V bus applications (e.g., telecom 48 V outputs or industrial 380 V DC link clamping), while ES2D is preferred for lower-voltage, ultra-low-loss paths like 12 V buck outputs where every 0.1 V matters.

ES2F 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):: 300 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.3 V @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 300 V

Capacitance @ Vr, F:: 20pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

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

ES2F FAQ

1.How can I place an order for ES2F through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2F 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 ES2F reliable?

The price and inventory of ES2F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2F is usually 5 days.

3.What payment methods are accepted for ES2F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2F?

ES2F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2F 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 ES2F?

For technical support, including ES2F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2F requirements.

6.How does Aetrix verify that ES2F is sourced from the original manufacturer or authorized distributors?

All ES2F 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 ES2F meets industry standards.

7.What is the process for return or replacement of ES2F?

All ES2F units undergo pre-shipment inspection (PSI). If there is an issue with ES2F, 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 ES2F part is unused and in its original packaging.

Return procedure for ES2F:

1.Submit a request within 90 days.

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

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