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

Diodes Incorporated ES1A-13

Name: ES1A-13
Brand: Diodes Incorporated
SKU: ES1A-13
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ES1A-13

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: DO-214AC, SMA

Datasheet:: ES1A-13.pdf

Description:: DIODE GEN PURP 50V 1A SMA

Quantity:: RFQ Add To RFQ list

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Inventory:9,718

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Product details

Overview

ES1A-13 from Diodes Incorporated is a 1.0A surface-mount super-fast rectifier diode in SMA package, rated for 50V peak repetitive reverse voltage, 25ns reverse recovery time, and 30A non-repetitive surge current. It serves as primary AC/DC input rectifier in compact offline power supplies for consumer adapters and USB-C PD chargers.

For engineers reviewing the ES1A-13 datasheet, ES1A-13 pinout, ES1A-13 application, or ES1A-13 equivalent, key selection criteria include its 25ns t_RR, 0.90V V_FM at 0.6A, 25°C/W junction-to-terminal thermal resistance, RoHS-compliant matte tin finish, and suitability for automated SMT assembly on FR-4 PCBs with 5.0 mm² copper pad heat sinking.

Technical Context

This super-fast recovery rectifier uses glass-passivated silicon die to achieve low reverse recovery charge (Q_rr) and minimal switching loss in high-frequency flyback and buck-derived topologies operating up to 100 kHz. Its 25ns t_RR enables efficient operation where fast turn-off reduces cross-conduction losses in synchronous rectification auxiliary paths.

The device operates across –55°C to +150°C with derated average current above +110°C terminal temperature. Its 20 pF typical junction capacitance at 4V reverse bias supports stable EMI performance in noise-sensitive low-power SMPS designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	50 V - Maximum repetitive reverse blocking capability without avalanche breakdown
I_O	1.0 A - Continuous average forward current at T_T = +110°C with PCB heat sinking
t_RR	25 ns - Measured at I_F = 0.5A, I_R = 1.0A, I_RR = 0.25A; enables <100 kHz switching efficiency
V_FM	0.90 V @ 0.6A - Forward drop defining conduction loss in 5–12V output rectification stages
R_θJT	25 °C/W - Thermal resistance from junction to soldered terminal; requires ≥5 mm² copper pad for full rating
I_FSM	30 A - Single half-sine surge rating; withstands inrush into bulk capacitors up to 100 µF
C_T	20 pF @ 1 MHz, 4V - Junction capacitance affecting high-frequency ringing and EMI filter design

Pinout & Package

SMA (DO-214AC) surface-mount package: molded plastic case, UL 94V-0 rated, cathode indicated by band or notch on body, matte tin-plated copper leadframe.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to AC input or transformer secondary; must handle 30A surge without bond wire fusing
Cathode	Forward current exit / reverse blocking terminal	Connected to bulk capacitor positive; polarity marking ensures correct orientation during automated placement

Key Features

Feature	Design Value
Glass passivated die	Eliminates surface leakage paths; maintains IR ≤ 5 µA at 50V and +25°C over lifetime
Super-fast 25ns recovery	Reduces reverse recovery energy (E_rec) to <10 µJ, lowering MOSFET stress in quasi-resonant converters
30A I_FSM rating	Supports cold-start into 47–100 µF input capacitors without degradation in 5W–15W adapters
RoHS & halogen-free	Meets IPC-J-STD-609 Class 1 for bromine/chlorine/antimony; compatible with lead-free reflow profiles (peak 260°C)

Applications

USB-C Power Adapter Input Rectification

Industrial IoT Sensor Power Supply

Use Scenario: 5V/3A USB-C PD adapter with 65 kHz flyback topology and 47 µF input bulk capacitor.

IC Role / Device Role / Timing Role: Primary-side AC input rectifier converting 90–264 VAC to pulsating DC before transformer primary winding.

Use Value: 25ns t_RR minimizes diode-induced switching loss, enabling >88% efficiency at full load without active clamp.

Use Scenario: Battery-backed industrial sensor node with 12 VAC auxiliary input for fieldbus communication power.

IC Role / Device Role / Timing Role: Off-line rectifier feeding linear regulator or buck converter for 3.3V MCU rail.

Use Value: 30A surge rating handles repeated hot-plug transients; –55°C to +150°C range supports unheated outdoor enclosures.

LED Driver Auxiliary Supply

White Goods Control Board Power

Use Scenario: Constant-current LED driver with integrated 12V auxiliary supply derived from main transformer auxiliary winding.

IC Role / Device Role / Timing Role: Secondary-side rectifier for auxiliary winding output, feeding 12V LDO for microcontroller and gate drivers.

Use Value: 0.90V V_FM limits dropout across LDO input, preserving regulation margin under 100 mA load.

Use Scenario: Washing machine main control board powered from internal 12V transformer with intermittent motor startup surges.

IC Role / Device Role / Timing Role: Input rectifier for transformer secondary feeding bridge rectifier and bulk capacitor.

Use Value: Glass passivation prevents humidity-induced leakage drift in humid laundry environments per IEC 60068-2-30.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR105	Same 50V V_RRM, but 35ns t_RR and 1.1V V_FM @ 1.0A; TO-220AC package	Requires through-hole mounting and heatsink; unsuitable for high-density SMT layouts	Select when higher surge robustness (50A I_FSM) outweighs size and assembly cost constraints
Vishay ES1AHE3_A/H	Identical electrical specs and SMA package; AEC-Q101 qualified for automotive	Qualified for under-hood ambient (T_J = 150°C) and vibration; higher traceability requirements	Select for automotive body electronics where PPAP documentation and lot traceability are mandatory

Compared with MUR105 and ES1AHE3_A/H, ES1A-13 offers optimal balance of SMT compatibility, 25ns speed, and cost for consumer-grade power supplies-where automotive qualification or through-hole mechanical ruggedness are not required.

Availability

ES1A-13 is available at Aetrix Electronics and suitable for USB-C power adapters, industrial IoT sensor nodes, LED driver auxiliary supplies, and white goods control boards requiring stable component supply and consistent parametric performance across production lots.

Supply support for ES1A-13 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, headquartered in Plano, Texas, serving power management, signal integrity, and protection markets since 1964.

The ES1x series belongs to Diodes' high-efficiency rectifier product line, designed specifically for space-constrained, high-frequency AC/DC conversion in consumer, computing, and industrial power supplies where low V_F and fast t_RR directly impact system efficiency and thermal design.

FAQ

What is the maximum allowable PCB copper pad area for thermal performance?

The datasheet specifies a 5.0 mm² copper pad (0.013 mm thick) as the reference for R_θJT = 25°C/W. Increasing pad area beyond this improves thermal resistance linearly-e.g., 10 mm² reduces R_θJT to ~18°C/W-but requires verifying solder mask clearance and stencil aperture design for reliable reflow wetting.

Can ES1A-13 replace a standard FR107 in an existing design?

Yes, ES1A-13 is a direct functional replacement for FR107 in most cases: both are 1A, 50V, SMA-packaged rectifiers. However, ES1A-13's 25ns t_RR (vs. FR107's 500ns) reduces switching loss significantly-verify snubber network values are not over-damped due to faster diode turn-off.

Is ES1A-13 suitable for use in a PFC boost diode position?

No. ES1A-13 is not rated for continuous high-voltage PFC operation: its 50V V_RRM is insufficient for 400V DC bus applications. PFC boost diodes require ≥600V rating (e.g., DFLS160) and optimized Q_rr/I_F trade-offs not provided by this super-fast general-purpose rectifier.

Does the "-13" suffix indicate tape-and-reel packaging?

Yes. Per Diodes Incorporated ordering information, "-13" denotes 5000-piece tape-and-reel packaging in SMA case format. The "-13-F" variant adds RoHS compliance marking; ES1A-13 is functionally identical and RoHS-compliant per Note 1 in the datasheet.

ES1A-13 Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

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):: 1A

Voltage - Forward (Vf) (Max) @ If:: 920 mV @ 1 A

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

Reverse Recovery Time (trr):: 25 ns

Current - Reverse Leakage @ Vr:: 5 µA @ 50 V

Capacitance @ Vr, F:: 10pF @ 4V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMA

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

ES1A-13 FAQ

1.How can I place an order for ES1A-13 through Aetrix?

Please submit a Request for Quotation (RFQ) for ES1A-13 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 ES1A-13 reliable?

The price and inventory of ES1A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1A-13 is usually 5 days.

3.What payment methods are accepted for ES1A-13?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1A-13 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ES1A-13?

ES1A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ES1A-13 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 ES1A-13?

For technical support, including ES1A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1A-13 requirements.

6.How does Aetrix verify that ES1A-13 is sourced from the original manufacturer or authorized distributors?

All ES1A-13 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 ES1A-13 meets industry standards.

7.What is the process for return or replacement of ES1A-13?

All ES1A-13 units undergo pre-shipment inspection (PSI). If there is an issue with ES1A-13, 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 ES1A-13 part is unused and in its original packaging.

Return procedure for ES1A-13:

1.Submit a request within 90 days.

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

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