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Diodes Incorporated ES2A-13
- Part No.:
- ES2A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ES2A-13.pdf
- Description:
- DIODE SUPERFST SMB 50V 20NS 150C
- Quantity:
- Payment:
- Shipping:
Inventory:7,812
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Product details
Overview
ES2A-13 from Diodes Incorporated is a 2.0A surface-mount super-fast rectifier diode in SMA package, rated for 50V peak repetitive reverse voltage (VRRM), 0.92V forward voltage at 2.0A, and 25ns reverse recovery time - optimized for high-frequency switching power supplies and DC/DC converters in industrial and consumer power adapters.
For engineers reviewing the ES2A-13 datasheet, ES2A-13 pinout, ES2A-13 application, or ES2A-13 equivalent, key selection criteria include fast recovery performance (trr = 25 ns), low VF under rated current, thermal resistance (RJT = 20 °C/W), and RoHS-compliant lead-free plating compatibility with automated SMT assembly.
Technical Context
This super-fast rectifier uses glass-passivated die construction to achieve stable junction characteristics across -55°C to +150°C operating range. Its 25 ns reverse recovery time enables efficient operation in 100–500 kHz SMPS topologies without excessive switching loss or EMI generation.
The device supports 2.0A average rectified output current at terminal temperature TT = 110°C and withstands non-repetitive 50A surge current (8.3 ms half-sine), making it suitable for transient-heavy input stages and flyback secondary-side rectification where low conduction loss and rapid turn-off are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum peak reverse voltage the diode blocks reliably in repetitive operation; defines usable input voltage headroom in AC/DC front-end designs. |
| IO @ TT=110°C | 2.0 A - Continuous DC output current capability when mounted on 5.0 mm² copper pad heat sink; sets minimum PCB copper area requirement. |
| VFM @ IF=2.0A | 0.92 V - Forward voltage drop at rated current; directly determines conduction loss (Pcond ≈ 1.84 W) and thermal design margin. |
| trr | 25 ns - Reverse recovery time measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables stable operation up to ~500 kHz without tail current-induced shoot-through. |
| RJT | 20 °C/W - Junction-to-terminal thermal resistance with specified PCB copper pad; used to calculate junction temperature rise above terminal temperature. |
| IFSM | 50 A - Non-repetitive surge rating per JEDEC method; validates robustness against line transients and inrush events in offline power supplies. |
Pinout & Package
ES2A-13 is housed in an SMA (DO-214AC) surface-mount plastic package with cathode band polarity marking. The two-terminal device has no internal leads - anode and cathode connect directly to molded-in metal tabs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of rectified path (e.g., transformer secondary center-tap or switch node in synchronous rectifier topology). |
| Cathode | Current exit point during forward conduction; marked by band | Connected to output capacitor positive rail; polarity must be verified before placement to prevent catastrophic short-circuit failure. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable leakage current and breakdown voltage over temperature and humidity; eliminates need for conformal coating in humid environments. |
| Super-fast recovery (25 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses - critical for efficiency in high-frequency flyback and LLC resonant converters. |
| Low VF (0.92 V @ 2.0A) | Minimizes conduction loss and thermal stress in compact, thermally constrained power modules and USB PD adapters. |
| RoHS-compliant matte tin plating | Supports lead-free reflow profiles (peak 260°C) without solder joint degradation or dewetting; qualified per J-STD-020C Level 1 moisture sensitivity. |
Applications
| AC/DC Adapter Secondary Rectification | Flyback Converter Output Stage |
|---|---|
Use Scenario: 5–24 V, 1–3 A offline AC/DC adapter for IoT sensors and smart home hubs. IC Role / Device Role / Timing Role: Unidirectional current steering diode converting transformer secondary AC to regulated DC output. Use Value: 25 ns trr prevents cross-conduction loss during high-frequency (≥200 kHz) switching; 0.92 V VF maintains >87% efficiency at full load. | Use Scenario: Isolated 12 V/2 A auxiliary supply in industrial PLC power architecture. IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier synchronized with primary-side MOSFET switching cycle. Use Value: 50 A IFSM rating absorbs transformer leakage energy spikes; 20 °C/W RJT enables reliable operation without heatsink on 2-layer PCB. |
| USB-C Power Delivery Front-End | DC/DC Buck-Boost Input Protection |
Use Scenario: 20 V input stage in multi-port USB PD charger with shared bulk capacitor bank. IC Role / Device Role / Timing Role: OR-ing diode isolating parallel input paths while minimizing forward drop. Use Value: Low 0.92 V VF reduces voltage sag during 3 A continuous input current; cathode-band marking ensures consistent orientation in dense layout. | Use Scenario: Input polarity protection and backfeed blocking in 12–48 V automotive-grade buck-boost LED driver. IC Role / Device Role / Timing Role: Reverse-voltage blocking element placed between battery input and converter input node. Use Value: 50 V VRRM provides 2× margin over 24 V nominal system; -55°C to +150°C Tj range supports under-hood deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MBR2505CT-TP (Micro Commercial) | 50 V VRRM, 2.0 A IO, but TO-220AB package (through-hole); VF = 0.55 V @ 2.0A (Schottky), trr not applicable | Lower VF improves efficiency but lacks reverse voltage margin for transient clamping; unsuitable for SMT-only lines | Select only if through-hole assembly is acceptable and Schottky's zero-recovery behavior is preferred over silicon super-fast trade-offs. |
| SS24 (Good-Ark) | 40 V VRRM, 2.0 A IO, SMA package, VF = 0.5 V @ 2.0A (Schottky), trr not applicable | Insufficient VRRM for 50 V-rated circuits; higher leakage at >100°C limits use in high-temp industrial enclosures | Acceptable only in ≤36 V DC input systems where ultra-low VF outweighs reduced voltage safety margin. |
Compared with MBR2505CT-TP and SS24, ES2A-13 delivers optimal balance of SMT compatibility, 50 V reverse rating, and predictable 25 ns recovery timing - essential for noise-sensitive, high-density power supplies where Schottky leakage or through-hole mounting are unacceptable.
Availability
ES2A-13 is available at Aetrix Electronics and suitable for AC/DC adapters, flyback converters, and USB-C power delivery systems requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.
Supply support for ES2A-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, specializing in high-efficiency power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.
The ES2x/A series targets cost-sensitive, high-volume power conversion applications where reliability, fast recovery, and SMT manufacturability are prioritized over ultra-low VF - distinguishing it from Schottky alternatives in mid-voltage rectification.
FAQ
What is the maximum junction temperature for ES2A-13?
The ES2A-13 has a specified operating junction temperature range of -55°C to +150°C. This rating is validated under conditions of 2.0A DC current and terminal temperature (TT) maintained at 110°C using a 5.0 mm² copper pad heat sink per JEDEC standards. Exceeding 150°C risks irreversible degradation of the glass-passivated junction.
Is ES2A-13 compatible with lead-free reflow processes?
Yes - ES2A-13 features matte tin lead-free plating qualified to J-STD-020C Level 1 moisture sensitivity and rated for peak reflow temperatures up to 260°C. The device passes solderability testing per MIL-STD-202, Method 208 and requires no pre-bake for standard SMT assembly.
How does ES2A-13 differ from ES2AA-13?
ES2AA-13 is the RoHS-compliant, lead-free version of ES2A-13, distinguished solely by the "-F" suffix in official ordering nomenclature (e.g., ES2AA-13-F). Both share identical electrical specs, package dimensions, and thermal performance; the difference lies only in plating composition and compliance documentation.
Can ES2A-13 replace a standard FR107 diode in existing designs?
Yes - ES2A-13 offers superior performance versus FR107: 25 ns vs. 500 ns trr, 0.92 V vs. 1.3 V VF at 1A, and 2.0 A vs. 1.0 A IO rating. However, verify PCB pad layout matches SMA (DO-214AC) footprint, and confirm that 50 V VRRM meets system transient requirements - FR107 is rated at 1000 V.
ES2A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- 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:
- SMB
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2A-13 FAQ
1.How can I place an order for ES2A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2A-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 ES2A-13 reliable?
The price and inventory of ES2A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2A-13 is usually 5 days.
3.What payment methods are accepted for ES2A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2A-13?
ES2A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2A-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 ES2A-13?
For technical support, including ES2A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2A-13 requirements.
6.How does Aetrix verify that ES2A-13 is sourced from the original manufacturer or authorized distributors?
All ES2A-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 ES2A-13 meets industry standards.
7.What is the process for return or replacement of ES2A-13?
All ES2A-13 units undergo pre-shipment inspection (PSI). If there is an issue with ES2A-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 ES2A-13 part is unused and in its original packaging.
Return procedure for ES2A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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