My Inquiry
My Account
Taiwan Semiconductor Corporation ES2AA
- Part No.:
- ES2AA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2AA.pdf
- Description:
- DIODE GEN PURP 50V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,857
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ES2AA from Taiwan Semiconductor is a 2A, 50V super fast recovery surface-mount rectifier diode in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 0.95V forward voltage at 2A/25°C, and 50A peak surge current - deployed in DC-DC converters and snubber circuits for high-efficiency power conversion.
For engineers reviewing the ES2AA datasheet, ES2AA pinout, ES2AA application, or ES2AA equivalent, key selection criteria include repetitive peak reverse voltage (50V), thermal resistance (RθJL = 20°C/W), junction temperature range (–55°C to +150°C), and RoHS/halogen-free compliance for industrial power designs.
Technical Context
The ES2AA is a single-die, unidirectional silicon rectifier optimized for high-frequency switching applications. Its super fast recovery (trr ≤ 35 ns) minimizes switching losses, while glass passivation ensures stable junction performance under thermal cycling and humidity stress.
Designed for surface-mount assembly with matte tin-plated leads (J-STD-002 compliant), the device operates across –55°C to +150°C junction temperature and supports automated placement due to its low-profile DO-214AC (SMA) package and moisture sensitivity level 1 rating per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC-DC flyback or freewheeling paths |
| IF | 2 A - Continuous average forward current; sets steady-state conduction capability in 24V/48V converter outputs |
| trr | 35 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables >100 kHz switching without excessive reverse recovery loss |
| VF | 0.95 V @ 2A, 25°C - Forward drop directly impacts conduction loss and thermal rise in compact power stages |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; enables direct heatsinking via PCB copper pour or metal-core board |
| IFSM | 50 A - Non-repetitive surge rating (8.3 ms half-sine); withstands inrush and transient overloads in SMPS startup |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case meeting UL 94V-0, cathode indicated by band, matte tin-plated leads, weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of switching node (e.g., MOSFET source or transformer secondary center-tap) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or snubber network; polarity band must align with PCB silkscreen for correct orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under thermal cycling and humid environments without hermetic sealing |
| Super fast recovery (35 ns) | Reduces reverse recovery charge (Qrr) and associated EMI in high-frequency converters (>100 kHz) |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow; compatible with standard SMT assembly lines |
| RoHS and halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive; suitable for green manufacturing and export compliance |
Applications
| DC-DC Converter | Snubber Circuit |
|---|---|
Use Scenario: Secondary-side rectification in isolated 24V-to-5V flyback converters powering industrial I/O modules. IC Role / Device Role / Timing Role: Unidirectional power switch converting high-frequency AC from transformer secondary into regulated DC output. Use Value: 35 ns trr and 0.95 V VF minimize conduction and switching losses, improving efficiency above 88% at full load. | Use Scenario: Voltage clamping across MOSFET drain-source during turn-off in 48V motor drive inverters. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive energy spikes to protect switching devices. Use Value: Low Qrr and 50V VRRM ensure rapid turn-on and reliable clamping without oscillation or secondary breakdown. |
| Freewheeling Diode | Lighting Driver |
Use Scenario: Inductor current path in buck-based LED drivers for commercial signage systems. IC Role / Device Role / Timing Role: Provides continuous current path during high-side switch off-time to maintain LED current continuity. Use Value: 2A IF rating and RθJL = 20°C/W allow operation at 70°C ambient without derating in enclosed fixtures. | Use Scenario: Output rectification in constant-current LED drivers for streetlight ballasts. IC Role / Device Role / Timing Role: Converts high-frequency transformer output to stable DC for LED string biasing. Use Value: Glass passivation and JESD201 Class 2 whisker resistance ensure long-term stability under thermal stress in outdoor lighting enclosures. |
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 MUR220 | VRRM = 200 V, trr = 35 ns, VF = 1.05 V @ 2A - higher voltage rating but same speed and slightly higher drop | Suitable where system requires margin above 50V reverse stress, e.g., 12V input with line transients | Select ES2AA when 50V VRRM suffices and lowest forward loss is prioritized |
| Vishay VS-2EYH01-M3/54 | VRRM = 100 V, trr = 25 ns, VF = 0.93 V @ 2A - faster recovery and lower drop, but different marking and packaging (reel count) | Better suited for >200 kHz resonant topologies requiring minimal Qrr | Choose ES2AA for cost-sensitive, volume production with proven DO-214AC footprint compatibility |
Compared with MUR220 and VS-2EYH01-M3/54, the ES2AA offers the lowest forward voltage among 50V-class super fast rectifiers and optimal thermal resistance for space-constrained layouts - making it preferred where efficiency and thermal headroom are critical within its 50V rating.
Availability
ES2AA is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, freewheeling paths, and LED lighting drivers requiring stable component supply, consistent DO-214AC (SMA) form factor, and verified super fast recovery performance.
Supply support for ES2AA 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The ES2AA belongs to TSC's ES2x series of super fast surface-mount rectifiers - engineered specifically for high-efficiency, high-frequency power conversion in compact, thermally constrained applications such as telecom power supplies and LED drivers.
FAQ
What is the maximum junction temperature rating for ES2AA?
The ES2AA has a maximum junction temperature (TJ) of +150°C and a minimum of –55°C. This wide operating range allows reliable use in industrial environments where ambient temperatures exceed 70°C. The device's RθJL of 20°C/W supports effective heat transfer to the PCB, helping maintain the ES2AA within its rated TJ even under sustained 2A conduction.
Is ES2AA RoHS and halogen-free compliant?
Yes, the ES2AA is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability standards, and its matte tin-plated leads satisfy J-STD-002 solderability requirements. These certifications make the ES2AA suitable for export to EU, Japan, and other regulated markets without material declaration concerns.
What does the "AA" suffix indicate in ES2AA?
The "AA" suffix in ES2AA specifies the 50V repetitive peak reverse voltage (VRRM) rating within the ES2x family. Per TSC's ordering code, "x" maps to voltage grade: AA = 50V, BA = 100V, CA = 150V, etc. All ES2x variants share identical DO-214AC (SMA) packaging, thermal performance, and super fast recovery characteristics - only VRRM, VF, and IR vary by grade.
Can ES2AA be used as a direct replacement for 1N5819 in low-voltage applications?
No - the ES2AA is not a direct replacement for the 1N5819. While both are Schottky-like rectifiers, the 1N5819 is a Schottky diode (VF ≈ 0.45V, no recovery time), whereas the ES2AA is a super fast silicon PN rectifier (VF = 0.95V, trr = 35 ns). Substituting ES2AA for 1N5819 increases conduction loss and may affect regulation in low-VIN buck designs; verify thermal and efficiency impact before replacement.
What is the reverse recovery time test condition for ES2AA?
The ES2AA reverse recovery time (trr) is measured at IF = 0.5A, IR = 1.0A, and Irr = 0.25A, per the manufacturer's electrical specifications table. This standardized test reflects real-world switching behavior in hard-commutated topologies. The typical value is ≤35 ns, with no maximum specified - confirming consistent super fast performance across production lots of the ES2AA.
ES2AA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
ES2AA FAQ
1.How can I place an order for ES2AA through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2AA 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 reliable?
The price and inventory of ES2AA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2AA is usually 5 days.
3.What payment methods are accepted for ES2AA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2AA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2AA?
ES2AA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2AA 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?
For technical support, including ES2AA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2AA requirements.
6.How does Aetrix verify that ES2AA is sourced from the original manufacturer or authorized distributors?
All ES2AA 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 meets industry standards.
7.What is the process for return or replacement of ES2AA?
All ES2AA units undergo pre-shipment inspection (PSI). If there is an issue with ES2AA, 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 part is unused and in its original packaging.
Return procedure for ES2AA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ES2AA Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
