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Diodes Incorporated ES2AA-13
- Part No.:
- ES2AA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2AA-13.pdf
- Description:
- DIODE GEN PURP 50V 2A SMA
- Quantity:
- Payment:
- Shipping:
Inventory:5,062
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Product details
Overview
ES2AA-13 from Diodes Incorporated is a 50 V, 2.0 A surface-mount super-fast rectifier diode in SMA package with 25 ns reverse recovery time, 0.92 V forward voltage at 2.0 A, and 50 A non-repetitive surge rating - used in high-frequency switch-mode power supplies and DC/DC converters for efficient AC-to-DC conversion.
For engineers reviewing the ES2AA-13 datasheet, ES2AA-13 pinout, ES2AA-13 application, or ES2AA-13 equivalent, key selection criteria include peak repetitive reverse voltage (50 V), fast recovery performance (25 ns), thermal resistance (20 °C/W), RoHS-compliant lead-free plating, and compatibility with automated SMT assembly on PCBs with 5.0 mm² copper pads.
Technical Context
This super-fast rectifier employs glass-passivated die construction to achieve low forward voltage drop and stable switching behavior under high-frequency operation. Its 25 ns reverse recovery time minimizes switching losses in 100–500 kHz SMPS topologies, while the 20 °C/W junction-to-terminal thermal resistance supports reliable operation at 110°C terminal temperature.
The device is rated for 2.0 A average rectified output current with derating above 110°C, and withstands 50 A single half-sine surge (8.3 ms, JEDEC method). It exhibits 5.0 µA peak reverse current at 25°C and 350 µA at 125°C under full DC blocking voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak repetitive reverse voltage; defines safe AC input or flyback clamp voltage limit |
| IO | 2.0 A - Average rectified output current at TT = 110°C; sets continuous DC output capability |
| VFM | 0.92 V @ 2.0 A - Forward voltage drop; directly impacts conduction loss and thermal load in high-current paths |
| trr | 25 ns - Reverse recovery time; enables efficient operation in 100–500 kHz switching converters |
| RθJT | 20 °C/W - Junction-to-terminal thermal resistance; requires ≥5.0 mm² copper pad for thermal management |
| IFSM | 50 A - Non-repetitive surge rating (8.3 ms); supports inrush and transient overload tolerance |
| Cj | 25 pF @ 4 V - Junction capacitance; influences high-frequency noise coupling and snubber design |
Pinout & Package
ES2AA-13 uses the SMA (DO-214AC) surface-mount package: molded plastic case (UL 94V-0), cathode band polarity marking, solderable matte tin-plated terminals, and weight of 0.064 g. Mounting orientation is unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to AC input or transformer secondary side; must handle 2.0 A continuous and 50 A surge |
| Cathode | Current exit point during forward conduction; marked by band | Connected to output capacitor or DC bus; defines reference for reverse voltage stress and EMI filtering |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable reverse leakage and long-term reliability under thermal cycling and humidity exposure |
| Super-fast 25 ns recovery | Reduces switching loss and EMI generation in high-frequency DC/DC converters and PFC stages |
| Low 0.92 V VF at 2.0 A | Lowers conduction loss by ~15% vs. standard fast rectifiers, improving efficiency in 12–48 V output supplies |
| RoHS-compliant matte tin finish | Enables lead-free reflow soldering without voiding or dewetting; compliant with EU Directive Annex Notes 5 & 7 |
| JEDEC-rated 50 A surge | Withstands cold-start inrush and line transients without degradation in industrial and telecom power designs |
Applications
| AC-DC Adapter Power Supply | DC/DC Converter Output Rectification |
|---|---|
Use Scenario: 5–24 V, 1–3 A wall adapter with 65–100 kHz flyback topology. IC Role / Device Role / Timing Role: Output rectifier converting transformer secondary AC to regulated DC; operates in discontinuous conduction mode. Use Value: 25 ns trr reduces reverse recovery loss and improves light-load efficiency by >2% versus standard fast diodes. | Use Scenario: 12 V → 3.3 V/5 V isolated buck-derived converter in networking equipment. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacement where cost-sensitive designs avoid MOSFET drivers. Use Value: 0.92 V VF limits power dissipation to <1.9 W at 2.0 A, enabling compact heatsink-free layout. |
| Industrial Motor Drive Control Board | Telecom DC Power Distribution Unit |
Use Scenario: Auxiliary 24 V supply feeding gate drivers and logic in 3-phase IGBT inverter modules. IC Role / Device Role / Timing Role: Input bridge rectifier for auxiliary SMPS; subjected to 50 Hz line harmonics and 100 kHz switching noise. Use Value: 50 V VRRM provides 2× safety margin over 24 V rail transients; UL 94V-0 housing meets industrial flame requirements. | Use Scenario: -48 V DC backup power interface with hot-swap and redundancy circuitry. IC Role / Device Role / Timing Role: OR-ing diode in redundant feed path; blocks reverse current during module insertion/removal. Use Value: 350 µA IR at 125°C ensures minimal standby leakage across dual feeds, preserving battery runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ES2A-13 | SMB package (larger footprint, 0.093 g), same electrical specs (50 V, 2.0 A, 25 ns) | Higher thermal mass but lower current density; better for manual rework or higher ambient temp (>125°C) | Select when board space allows larger footprint and thermal relief via SMB pad geometry is preferred |
| SB250-E3/5BT | VRRM = 50 V, IO = 2.0 A, but trr = 35 ns and VF = 0.95 V; TO-277 package | Slower recovery increases switching loss in >200 kHz designs; TO-277 requires different stencil and placement | Choose only if legacy TO-277 footprint reuse is mandatory and frequency ≤150 kHz |
Compared with ES2A-13 and SB250-E3/5BT, ES2AA-13 offers optimal balance of miniaturized SMA footprint, fastest recovery (25 ns), and lowest forward drop (0.92 V), making it preferred for space-constrained, high-efficiency 200–500 kHz power stages.
Availability
ES2AA-13 is available at Aetrix Electronics and suitable for AC-DC adapters, DC/DC converter output stages, and industrial auxiliary power supplies requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.
Supply support for ES2AA-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, with design centers across Asia and Europe, serving industrial, computing, and communications markets.
The ES2x/A series targets high-frequency power conversion applications, emphasizing fast recovery, low conduction loss, and robust thermal performance in compact surface-mount packages for modern switch-mode power supplies.
FAQ
What is the maximum operating temperature for ES2AA-13?
The ES2AA-13 has an operating junction temperature range of –55°C to +150°C and is rated for 2.0 A average output current up to a terminal temperature of 110°C. Derating begins above 110°C per Figure 1 in DS14002 Rev. 8, with thermal resistance of 20 °C/W referenced to terminal.
Is ES2AA-13 compatible with lead-free reflow soldering?
Yes - ES2AA-13 features matte tin-plated terminals and is RoHS-compliant per EU Directive Annex Notes 5 and 7, qualified for standard lead-free reflow profiles (peak 260°C, per J-STD-020). No special prebake or moisture sensitivity handling is required (MSL Level 1).
How does the 25 ns reverse recovery time impact EMI in power designs?
A 25 ns trr reduces high-frequency ringing and dv/dt-induced noise during turn-off, lowering conducted EMI in the 30–100 MHz band. This allows smaller input filters and simplifies compliance testing in Class B ITE power supplies without adding snubbers.
Can ES2AA-13 replace a standard FR207 in an existing design?
No - FR207 is a 1000 V, 2 A fast rectifier with ~500 ns trr, intended for line-frequency applications. ES2AA-13's 50 V rating and 25 ns trr make it unsuitable for 115/230 VAC inputs; it is designed exclusively for low-voltage, high-frequency secondary-side rectification.
ES2AA-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):
- 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 @ 50 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2AA-13 FAQ
1.How can I place an order for ES2AA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2AA-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 ES2AA-13 reliable?
The price and inventory of ES2AA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2AA-13 is usually 5 days.
3.What payment methods are accepted for ES2AA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2AA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2AA-13?
ES2AA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2AA-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 ES2AA-13?
For technical support, including ES2AA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2AA-13 requirements.
6.How does Aetrix verify that ES2AA-13 is sourced from the original manufacturer or authorized distributors?
All ES2AA-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 ES2AA-13 meets industry standards.
7.What is the process for return or replacement of ES2AA-13?
All ES2AA-13 units undergo pre-shipment inspection (PSI). If there is an issue with ES2AA-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 ES2AA-13 part is unused and in its original packaging.
Return procedure for ES2AA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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