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

Taiwan Semiconductor Corporation ES2AAHR3G

Name: ES2AAHR3G
Brand: Taiwan Semiconductor Corporation
SKU: ES2AAHR3G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES2AAHR3G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES2AAHR3G.pdf

Description:: DIODE GEN PURP 50V 2A DO214AC

Quantity:: RFQ Add To RFQ list

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Inventory:2,119

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Product details

Overview

ES2AAHR3G from Taiwan Semiconductor is a 2A, 50V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 0.95V max forward voltage at 2A/25°C, and 50A peak surge current. It serves as a freewheeling or snubber diode in high-frequency DC-DC converters.

For engineers reviewing the ES2AAHR3G datasheet, ES2AAHR3G pinout, ES2AAHR3G application, or ES2AAHR3G equivalent, key selection criteria include V_RRM = 50V, I_F = 2A, t_rr = 35ns, thermal resistance R_θJA = 75°C/W, and DO-214AC mechanical compatibility with automated SMT assembly.

Technical Context

This single-die, unidirectional silicon rectifier uses glass-passivated junction technology to achieve stable performance across -55°C to +150°C junction temperature range. Its low-profile DO-214AC package supports high-density PCB layouts while meeting J-STD-020 moisture sensitivity level 1 and JESD 201 class 2 whisker resistance.

The device delivers 35ns reverse recovery time under IF = 0.5A / IR = 1.0A / Irr = 0.25A test conditions, enabling efficient operation in switching-mode power supplies up to several hundred kHz. Junction capacitance is 25pF at 1MHz and 4.0V reverse bias, supporting minimal switching loss in snubber networks.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC output rectification
I_F	2 A - Continuous average forward current; determines thermal design margin at ambient ≤ 75°C
t_rr	35 ns - Reverse recovery time; enables high-frequency switching with reduced turn-off losses
V_F	0.95 V max at 2A/25°C - Forward voltage drop; directly impacts conduction loss and efficiency at rated load
R_θJA	75 °C/W - Junction-to-ambient thermal resistance; used to calculate temperature rise on standard FR-4 PCB
I_FSM	50 A - Non-repetitive peak surge current (8.3ms half-sine); supports inrush and fault-current handling
C_J	25 pF at 1MHz/4V - Junction capacitance; influences high-frequency noise and snubber sizing

Pinout & Package

DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads, cathode indicated by band, weight ≈ 0.060g, UL 94V-0 rated compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential side of circuit (e.g., switch node in buck converter)
Cathode	Forward current exit / reverse blocking terminal	Marked by band; connects to output rail; blocks reverse voltage up to 50V

Key Features

Feature	Design Value
Glass passivated junction	Ensures long-term reliability and stable leakage current over temperature and humidity stress
Super fast recovery (35ns)	Reduces switching loss and EMI generation in 100–500 kHz SMPS designs
DO-214AC (SMA) package	Enables automated pick-and-place and reflow soldering with industry-standard footprint
Moisture sensitivity level 1	Eliminates need for baking prior to assembly; supports unlimited floor life
RoHS & halogen-free compliance	Meets IEC 61249-2-21 and environmental requirements for industrial and consumer end equipment

Applications

DC-DC Converter Output Rectification	Snubber Network Diode
Use Scenario: Used in secondary-side rectification of isolated flyback or forward converters delivering 5–24V outputs. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during transformer reset phase; handles continuous 2A DC output current. Use Value: 0.95V V_F minimizes conduction loss; 35ns t_rr prevents reverse recovery oscillation at 250kHz switching frequency.	Use Scenario: Placed across MOSFET drain-source or transformer primary to clamp voltage spikes. IC Role / Device Role / Timing Role: Fast-turn-on clamping diode absorbing inductive energy during switch turn-off. Use Value: 25pF C_J and 35ns t_rr enable precise spike timing control without excessive ringing or delayed conduction.
Lighting Driver Freewheeling	Switching Inverter Auxiliary Rectification
Use Scenario: Provides freewheeling path in LED driver buck/boost stages powering architectural or industrial lighting. IC Role / Device Role / Timing Role: Conducts inductor current when main switch is off; sustains LED current continuity. Use Value: 150°C T_JMAX supports operation in thermally constrained enclosed fixtures; DO-214AC fits compact LED module footprints.	Use Scenario: Rectifies auxiliary winding output in half-bridge or full-bridge inverters for gate drive or bias supply. IC Role / Device Role / Timing Role: Converts AC from auxiliary winding into regulated DC for control IC power rails. Use Value: 50A I_FSM withstands startup surges; 75°C/W R_θJA allows direct mounting on small copper areas without heatsink.

DC-DC Converter Output Rectification

Snubber Network Diode

Use Scenario: Used in secondary-side rectification of isolated flyback or forward converters delivering 5–24V outputs.

IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during transformer reset phase; handles continuous 2A DC output current.

Use Value: 0.95V V_F minimizes conduction loss; 35ns t_rr prevents reverse recovery oscillation at 250kHz switching frequency.

Use Scenario: Placed across MOSFET drain-source or transformer primary to clamp voltage spikes.

IC Role / Device Role / Timing Role: Fast-turn-on clamping diode absorbing inductive energy during switch turn-off.

Use Value: 25pF C_J and 35ns t_rr enable precise spike timing control without excessive ringing or delayed conduction.

Lighting Driver Freewheeling

Switching Inverter Auxiliary Rectification

Use Scenario: Provides freewheeling path in LED driver buck/boost stages powering architectural or industrial lighting.

IC Role / Device Role / Timing Role: Conducts inductor current when main switch is off; sustains LED current continuity.

Use Value: 150°C T_JMAX supports operation in thermally constrained enclosed fixtures; DO-214AC fits compact LED module footprints.

Use Scenario: Rectifies auxiliary winding output in half-bridge or full-bridge inverters for gate drive or bias supply.

IC Role / Device Role / Timing Role: Converts AC from auxiliary winding into regulated DC for control IC power rails.

Use Value: 50A I_FSM withstands startup surges; 75°C/W R_θJA allows direct mounting on small copper areas without heatsink.

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 = 600V, t_rr = 30ns, V_F = 1.15V @ 2A, DO-214AC	Higher voltage rating suits 400V bus systems; slightly higher V_F increases conduction loss at 50V use	Select when designing for universal input or higher bus voltages; not drop-in for 50V-only designs due to over-spec'd V_RRM
MBR2505CT	50V Schottky, dual common-cathode, I_F = 2.5A per diode, TO-220AC	Lower V_F (~0.5V) but higher leakage and no 50V V_RRM margin; through-hole package requires layout change	Choose only if ultra-low V_F is critical and board space/layout revision is acceptable

Compared with STTH2R06 and MBR2505CT, ES2AAHR3G offers optimal balance of 50V rating, 35ns speed, and DO-214AC SMT compatibility for cost-sensitive, space-constrained 2A DC-DC outputs-without over-engineering voltage margin or changing assembly process.

Availability

ES2AAHR3G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, snubber networks, LED lighting drivers, and switching inverter auxiliary supplies requiring stable component supply and consistent parametric performance.

Supply support for ES2AAHR3G 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 ES2AAHR3G belongs to TSC's ES2x series of super fast recovery rectifiers, engineered specifically for high-efficiency, high-frequency switching power supplies where low t_rr, stable V_F, and robust thermal performance are essential.

FAQ

What is the maximum junction temperature rating for ES2AAHR3G?

The ES2AAHR3G has a maximum junction temperature (T_JMAX) of +150°C, allowing reliable operation in thermally demanding environments such as enclosed LED drivers or industrial power supplies. This rating is validated under continuous I_F = 2A operation with proper PCB copper area and ambient conditions below 75°C. Derating curves in the ES2AA–ES2JA datasheet confirm usable current down to 0A at 150°C ambient.

Does ES2AAHR3G have a RoHS and halogen-free certification?

Yes, ES2AAHR3G is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound and matte tin-plated leads meet these environmental standards, and the device carries the "G" suffix in its marking code (ES2AAHR3G) to denote green compound. This makes ES2AAHR3G suitable for consumer, industrial, and automotive-qualified applications requiring strict material declarations.

What is the reverse recovery time (t_rr) test condition for ES2AAHR3G?

The reverse recovery time of 35ns for ES2AAHR3G is measured under standardized conditions: I_F = 0.5A, I_R = 1.0A, and I_rr = 0.25A, per JEDEC guidelines. This reflects real-world behavior during hard-switching transitions in DC-DC converters. The value is guaranteed maximum, and typical performance is tighter, supporting stable operation up to 500kHz in well-designed layouts.

Can ES2AAHR3G be used as a direct replacement for ES2BAHR3G in a 100V design?

No, ES2AAHR3G is not suitable as a direct replacement for ES2BAHR3G in a 100V design because its V_RRM is only 50V. Exceeding this rating risks catastrophic failure during voltage transients or steady-state operation. ES2BAHR3G (100V) and ES2CAHR3G (150V) are appropriate alternatives for higher-voltage applications; always verify reverse voltage margin against worst-case system conditions before substitution.

What is the moisture sensitivity level (MSL) and floor life of ES2AAHR3G?

ES2AAHR3G has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/85% RH and does not require dry pack or baking before surface-mount assembly. This simplifies manufacturing logistics and eliminates reflow defects related to popcorning, making ES2AAHR3G ideal for high-volume SMT production lines without special handling protocols.

ES2AAHR3G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 50 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 950 mV @ 2 A

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

Reverse Recovery Time (trr):: 35 ns

Current - Reverse Leakage @ Vr:: 10 µA @ 50 V

Capacitance @ Vr, F:: 25pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AC (SMA)

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

ES2AAHR3G FAQ

1.How can I place an order for ES2AAHR3G through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2AAHR3G 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 ES2AAHR3G reliable?

The price and inventory of ES2AAHR3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2AAHR3G is usually 5 days.

3.What payment methods are accepted for ES2AAHR3G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2AAHR3G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2AAHR3G?

ES2AAHR3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2AAHR3G 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 ES2AAHR3G?

For technical support, including ES2AAHR3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2AAHR3G requirements.

6.How does Aetrix verify that ES2AAHR3G is sourced from the original manufacturer or authorized distributors?

All ES2AAHR3G 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 ES2AAHR3G meets industry standards.

7.What is the process for return or replacement of ES2AAHR3G?

All ES2AAHR3G units undergo pre-shipment inspection (PSI). If there is an issue with ES2AAHR3G, 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 ES2AAHR3G part is unused and in its original packaging.

Return procedure for ES2AAHR3G:

1.Submit a request within 90 days.

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

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