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

Taiwan Semiconductor Corporation ES2H

Name: ES2H
Brand: Taiwan Semiconductor Corporation
SKU: ES2H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES2H

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AA, SMB

Datasheet:: ES2H.pdf

Description:: 35NS, 2A, 500V, SUPER FAST RECOV

Quantity:: RFQ Add To RFQ list

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Inventory:2,011

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Product details

Overview

ES2H from Taiwan Semiconductor is a 500 V, 2 A super fast recovery surface-mount rectifier in DO-214AA (SMB) package, with 1.70 V max forward voltage at 2 A and 35 ns reverse recovery time, used for freewheeling and snubber circuits in DC-DC converters and switching inverters.

For engineers reviewing the ES2H datasheet, ES2H pinout, ES2H application, or ES2H equivalent, key selection criteria include peak reverse voltage (500 V), forward current rating (2 A), thermal resistance (R_θJL = 20 °C/W), and ultra-fast recovery (t_rr ≤ 35 ns) in SMB footprint.

Technical Context

The ES2H employs a single-die, glass-passivated silicon junction optimized for high-frequency switching operation. Its 500 V V_RRM, 35 ns t_rr, and 1.70 V V_F at 2 A enable efficient energy recovery in hard-switched topologies.

Thermal performance is defined by R_θJL = 20 °C/W and R_θJA = 75 °C/W, supporting continuous 2 A conduction at T_A ≤ 85 °C with standard PCB copper area. Moisture sensitivity is rated J-STD-020 Level 1.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	500 V - blocks up to 500 V repetitive reverse voltage without breakdown
I_F	2 A - continuous average forward current rating at T_A = 75 °C
V_F (max)	1.70 V @ 2 A, 25 °C - low conduction loss enabling >92% efficiency in 12–48 V DC-DC stages
t_rr (max)	35 ns - minimizes switching losses and EMI in 100–500 kHz SMPS designs
I_FSM	50 A - withstands 8.3 ms half-sine surge, supporting inrush and fault transient handling
Junction temp	−55 to +150 °C - enables operation in industrial ambient environments up to 85 °C
R_θJL	20 °C/W - allows direct heat transfer to PCB copper, reducing thermal derating need

Pinout & Package

DO-214AA (SMB) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential node (e.g., switch node in buck freewheel path)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to output rail or snubber capacitor positive node

Key Features

Feature	Design Value
Super fast recovery (t_rr ≤ 35 ns)	Reduces turn-off switching loss and diode-induced ringing in high-frequency converters
Glass passivated junction	Ensures long-term reliability under humidity and thermal cycling per J-STD-020 Level 1
Low-profile SMB package	Enables compact layout in space-constrained power modules and LED drivers
RoHS & halogen-free	Meets IEC 61249-2-21 and global environmental compliance requirements

Applications

DC-DC Converter Freewheeling	Snubber Network Diode
Use Scenario: Freewheeling path in synchronous or non-synchronous buck converter operating at 200–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current path during low-side switch off-time; recovers before next switching cycle. Use Value: 35 ns t_rr prevents reverse recovery current overlap with high-side switch turn-on, reducing shoot-through risk and conduction loss.	Use Scenario: Clamp diode in RCD snubber across MOSFET drain-source in flyback or forward converters. IC Role / Device Role / Timing Role: Fast clamping element that conducts only during voltage spike, then blocks rapidly. Use Value: 500 V V_RRM and 1.70 V V_F ensure reliable clamping of 400 V bus transients while minimizing power dissipation.
Lighting Driver Output Rectification	Switching Inverter Freewheeling
Use Scenario: Secondary-side rectification in isolated LED driver with 36–48 V output and 20–100 kHz switching. IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED string; handles continuous 2 A load. Use Value: 2 A I_F rating and 20 °C/W R_θJL allow direct PCB copper heatsinking without external heatsink in enclosed luminaires.	Use Scenario: Freewheeling diode across motor winding or transformer secondary in 10–20 kHz H-bridge inverter. IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current when bridge legs are commutated. Use Value: 50 A I_FSM withstands motor stall currents; 35 ns t_rr suppresses voltage overshoot during rapid polarity reversal.

DC-DC Converter Freewheeling

Snubber Network Diode

Use Scenario: Freewheeling path in synchronous or non-synchronous buck converter operating at 200–500 kHz.

IC Role / Device Role / Timing Role: Unidirectional current path during low-side switch off-time; recovers before next switching cycle.

Use Value: 35 ns t_rr prevents reverse recovery current overlap with high-side switch turn-on, reducing shoot-through risk and conduction loss.

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

IC Role / Device Role / Timing Role: Fast clamping element that conducts only during voltage spike, then blocks rapidly.

Use Value: 500 V V_RRM and 1.70 V V_F ensure reliable clamping of 400 V bus transients while minimizing power dissipation.

Lighting Driver Output Rectification

Switching Inverter Freewheeling

Use Scenario: Secondary-side rectification in isolated LED driver with 36–48 V output and 20–100 kHz switching.

IC Role / Device Role / Timing Role: Output rectifier delivering regulated DC to LED string; handles continuous 2 A load.

Use Value: 2 A I_F rating and 20 °C/W R_θJL allow direct PCB copper heatsinking without external heatsink in enclosed luminaires.

Use Scenario: Freewheeling diode across motor winding or transformer secondary in 10–20 kHz H-bridge inverter.

IC Role / Device Role / Timing Role: Provides low-loss return path for inductive current when bridge legs are commutated.

Use Value: 50 A I_FSM withstands motor stall currents; 35 ns t_rr suppresses voltage overshoot during rapid polarity reversal.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R06	V_RRM = 600 V, V_F = 1.7 V @ 2 A, t_rr = 35 ns, same DO-214AA package	Higher V_RRM margin supports 400 V AC input designs; identical thermal and switching specs	Preferred where input surge or line variation exceeds 500 V peak
SS26	V_RRM = 60 V, V_F = 0.55 V @ 2 A, t_rr = 35 ns, DO-214AA	Lower V_RRM but significantly lower V_F; unsuitable for >100 V systems	Only viable in low-voltage (<60 V) DC-DC or battery-fed applications requiring minimal conduction loss

Compared with STTH2R06, ES2H offers tighter V_RRM tolerance (500 V vs. 600 V) and lower cost for 400 V bus systems; versus SS26, ES2H provides essential 500 V blocking capability at modest V_F penalty-critical for industrial and lighting inverters.

Availability

ES2H is available at Aetrix Electronics and suitable for DC-DC converters, lighting drivers, and switching inverters requiring stable component supply with consistent SMB footprint and RoHS/halogen-free compliance.

Supply support for ES2H 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 industrial, computing, and consumer markets since 1979.

The ES2x series targets high-efficiency, high-reliability power conversion applications, emphasizing fast recovery, robust thermal design, and automated assembly compatibility in surface-mount rectifiers.

FAQ

What is the maximum repetitive peak reverse voltage for ES2H?

The ES2H has a maximum repetitive peak reverse voltage (V_RRM) of 500 V, verified per Taiwan Semiconductor's L2102 datasheet. This rating ensures reliable blocking under transient overvoltage conditions in 400 V DC bus applications. Exceeding 500 V may cause avalanche breakdown or premature failure. The ES2H is not rated for continuous operation above this value.

What is the forward voltage drop of ES2H at rated current?

The ES2H exhibits a maximum forward voltage (V_F) of 1.70 V at 2 A and 25 °C, per electrical specifications in the L2102 datasheet. At elevated junction temperatures (e.g., 125 °C), V_F decreases slightly due to negative temperature coefficient. This V_F directly impacts conduction loss in power stage calculations for ES2H-based designs.

Is ES2H compatible with lead-free reflow soldering processes?

Yes, ES2H features matte tin-plated leads qualified per J-STD-002 for solderability and meets J-STD-020 moisture sensitivity Level 1, allowing unlimited floor life and compatibility with standard lead-free reflow profiles (peak 260 °C). No pre-baking is required prior to assembly, simplifying manufacturing for ES2H integration.

What is the reverse recovery time specification for ES2H?

The ES2H has a maximum reverse recovery time (t_rr) of 35 ns, measured at I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A. This ultra-fast recovery enables clean commutation in high-frequency switching circuits and reduces EMI generation. The t_rr remains stable across its −55 to +150 °C operating range for ES2H.

Does ES2H have a halogen-free and RoHS-compliant construction?

Yes, ES2H is certified halogen-free per IEC 61249-2-21 and RoHS-compliant per EU Directive 2011/65/EU. The molding compound meets UL 94V-0 flammability rating, and all materials are documented in TSC's substance declaration for ES2H. These attributes support compliance in medical, industrial, and consumer end equipment.

ES2H 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):: 500 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 1.7 V @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 500 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

ES2H FAQ

1.How can I place an order for ES2H through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2H 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 ES2H reliable?

The price and inventory of ES2H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2H is usually 5 days.

3.What payment methods are accepted for ES2H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2H?

ES2H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2H 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 ES2H?

For technical support, including ES2H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2H requirements.

6.How does Aetrix verify that ES2H is sourced from the original manufacturer or authorized distributors?

All ES2H 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 ES2H meets industry standards.

7.What is the process for return or replacement of ES2H?

All ES2H units undergo pre-shipment inspection (PSI). If there is an issue with ES2H, 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 ES2H part is unused and in its original packaging.

Return procedure for ES2H:

1.Submit a request within 90 days.

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

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