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

Diodes Incorporated ES2DA_HF

Name: ES2DA_HF
Brand: Diodes Incorporated
SKU: ES2DA_HF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES2DA_HF

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES2DA_HF.pdf

Description:: SUPERFAST RECOVERY RECTIFIER SMA

Quantity:: RFQ Add To RFQ list

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Inventory:9,117

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Product details

Overview

ES2DA_HF from Diodes Incorporated is a surface-mount super fast recovery rectifier diode rated for 200 V repetitive peak reverse voltage, 2.0 A average forward current, and 25 ns reverse recovery time, designed for high-frequency switching power supplies, DC-DC converters, and freewheeling applications where low conduction loss and fast turn-off are critical.

For engineers reviewing the ES2DA_HF datasheet, ES2DA_HF pinout, ES2DA_HF application, or ES2DA_HF equivalent, key selection criteria include verified V_RRM = 200 V, I_F(AV) = 2.0 A at T_L = 110°C, t_rr = 25 ns (IF = 0.5 A, IR = 1.0 A), V_F = 0.92 V @ 2 A/25°C, and R_thJL = 20 °C/W - all confirmed per Diodes Incorporated REV-10 datasheet.

Technical Context

This device is a single-die, planar passivated silicon PN junction rectifier optimized for high-efficiency AC/DC and DC/DC conversion. Its 25 ns reverse recovery time enables operation in 100–500 kHz switch-mode topologies without excessive switching loss or EMI generation.

The SMA package provides low thermal resistance (20 °C/W junction-to-lead) and supports automated reflow assembly. The cathode band marking and green halogen-free molding compound (UL 94V-0, <900 ppm Br/Cl, <1000 ppm Sb) meet industrial and automotive environmental compliance requirements.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	200 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in bridge or flyback snubber circuits.
I_F(AV)	2.0 A @ T_L = 110°C - Continuous forward current capability with lead temperature derating; supports compact heatsinking in space-constrained SMPS.
t_rr	25 ns - Measured under IF = 0.5 A, IR = 1.0 A; enables efficient high-frequency switching with minimal tail current loss.
V_F	0.92 V @ 2 A, 25°C - Low forward voltage drop reduces conduction loss and improves system efficiency at nominal load.
I_R	5.0 µA @ 200 V, 25°C - Low leakage ensures minimal standby power loss in offline adapters and energy-sensitive designs.
R_thJL	20 °C/W - Junction-to-lead thermal resistance; allows direct PCB copper pour thermal coupling without discrete heatsink.

Pinout & Package

SMA (DO-214AC) surface-mount package: molded green halogen-free plastic case, cathode indicated by band, weight ≈ 0.07 g, moisture sensitivity level 1 per J-STD-020C.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side (e.g., transformer secondary center-tap or MOSFET source in synchronous rectification).
Cathode	Forward current exit / reverse blocking terminal	Marked with band; connects to output rail or positive bus; withstands up to 200 V reverse bias during off-state.

Key Features

Feature	Design Value
Super fast recovery	t_rr = 25 ns enables >300 kHz switching in PFC and LLC resonant converters without excessive diode loss.
Glass passivated chip	Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments.
Low V_F and high I_F(AV)	0.92 V @ 2 A minimizes power dissipation; combined with 2.0 A rating, supports compact 15–25 W adapter designs.
Green package compliance	Halogen- and antimony-free UL 94V-0 molding compound meets RoHS 3 (2015/863/EU) and automotive ELV directive requirements.

Applications

AC-DC Adapter Secondary Rectification

DC-DC Converter Freewheeling Diode

Use Scenario: 12 V/2 A output stage of universal-input offline flyback adapter.

IC Role / Device Role / Timing Role: Output rectifier conducting during transformer demagnetization phase; blocks reverse voltage during primary switch on-time.

Use Value: 25 ns t_rr prevents reverse recovery shoot-through in quasi-resonant controllers; 0.92 V V_F maintains >87% efficiency at full load.

Use Scenario: High-side freewheel path in 48 V–12 V buck converter for telecom power shelf.

IC Role / Device Role / Timing Role: Unidirectional current path during low-side MOSFET off-time; clamps inductive kickback from power inductor.

Use Value: 20 °C/W R_thJL allows direct thermal coupling to 2 oz copper pour; 5 µA I_R avoids standby current penalty in always-on systems.

OR-ing Diode in Redundant Power Supplies

Snubber Network Clamp Diode

Use Scenario: Back-to-back diode configuration in 24 V redundant 2×1 kVA UPS modules.

IC Role / Device Role / Timing Role: Forward conduction isolates failed supply; reverse blocking prevents backfeed between parallel rails.

Use Value: 200 V V_RRM accommodates 24 V rail transients up to 100 V; low V_F minimizes insertion loss in hot-swap path.

Use Scenario: RC-snubber clamp across primary-side MOSFET in 65 kHz forward converter.

IC Role / Device Role / Timing Role: Fast turn-on to absorb leakage inductance spike; rapid turn-off to avoid oscillation ringback.

Use Value: 25 ns t_rr ensures clean clamping edge; 50 A I_FSM withstands repetitive surge events without degradation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH2R02	V_RRM = 200 V, t_rr = 35 ns, V_F = 0.95 V @ 2 A - slower recovery, slightly higher V_F	Acceptable in ≤150 kHz designs; less suitable for QR or LLC topologies requiring <30 ns t_rr	Select if cost sensitivity outweighs 10 ns t_rr margin and thermal budget permits 0.03 V higher drop.
MBR2100	V_RRM = 100 V, t_rr = 35 ns, V_F = 0.85 V - lower voltage rating, faster than ES2DA_HF but insufficient for 200 V bus	Only usable in sub-100 V secondary rails; not a drop-in replacement for 200 V applications	Choose only when system max reverse stress is ≤100 V and lowest possible V_F is prioritized over voltage margin.

Compared with STTH2R02 and MBR2100, ES2DA_HF uniquely balances 200 V rating, 25 ns recovery, and 0.92 V forward drop - making it optimal for high-density 200 V-rated SMPS where both voltage headroom and switching speed constrain design margins.

Availability

ES2DA_HF is available at Aetrix Electronics and suitable for AC-DC adapters, DC-DC converters, OR-ing power paths, and snubber networks requiring stable component supply, consistent parametric performance, and RoHS 3-compliant sourcing.

Supply support for ES2DA_HF 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection devices for industrial, computing, and consumer markets.

The ES2DA_HF belongs to the ES2x series of super fast rectifiers, engineered specifically for high-frequency, high-efficiency power conversion where low V_F, fast t_rr, and robust thermal performance are essential.

FAQ

What is the maximum junction temperature for ES2DA_HF?

The absolute maximum junction temperature is +150°C, with continuous operation permitted from –55°C to +150°C. Derating begins above 110°C lead temperature; at T_L = 110°C, the device sustains 2.0 A average forward current. Thermal design must ensure R_thJL × P_D + T_L ≤ 150°C.

Is ES2DA_HF compatible with lead-free reflow soldering profiles?

Yes - ES2DA_HF uses a lead-free finish compliant with JEDEC J-STD-020C Level 1 moisture sensitivity. It supports standard Pb-free reflow profiles with peak temperatures up to 260°C and is qualified for IPC-A-610 Class 2 and Class 3 assembly.

How does the "Green" package differ from standard SMA?

The "Green" package uses halogen- and antimony-free molding compound meeting RoHS 3 (2015/863/EU), with <900 ppm bromine/chlorine and <1000 ppm antimony. It retains identical mechanical dimensions and electrical specs as standard SMA but satisfies stricter environmental mandates for automotive and medical end equipment.

Can ES2DA_HF replace a general-purpose rectifier like 1N4007?

No - ES2DA_HF is not a drop-in replacement for 1N4007. While both are diodes, 1N4007 has 1000 V V_RRM but 30 µs t_rr; ES2DA_HF offers 200 V V_RRM and 25 ns t_rr. Substitution requires verifying voltage margin, switching frequency, and thermal limits - especially in high-frequency designs where slow recovery causes failure.

ES2DA_HF Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: DO-214AC, SMA

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 200 V

Current - Average Rectified (Io):: 2A

Voltage - Forward (Vf) (Max) @ If:: 920 mV @ 2 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 200 V

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMA

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

ES2DA_HF FAQ

1.How can I place an order for ES2DA_HF through Aetrix?

Please submit a Request for Quotation (RFQ) for ES2DA_HF 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 ES2DA_HF reliable?

The price and inventory of ES2DA_HF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2DA_HF is usually 5 days.

3.What payment methods are accepted for ES2DA_HF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2DA_HF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES2DA_HF?

ES2DA_HF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES2DA_HF 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 ES2DA_HF?

For technical support, including ES2DA_HF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2DA_HF requirements.

6.How does Aetrix verify that ES2DA_HF is sourced from the original manufacturer or authorized distributors?

All ES2DA_HF 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 ES2DA_HF meets industry standards.

7.What is the process for return or replacement of ES2DA_HF?

All ES2DA_HF units undergo pre-shipment inspection (PSI). If there is an issue with ES2DA_HF, 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 ES2DA_HF part is unused and in its original packaging.

Return procedure for ES2DA_HF:

1.Submit a request within 90 days.

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

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