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Taiwan Semiconductor Corporation ES2AAH
- Part No.:
- ES2AAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2AAH.pdf
- Description:
- DIODE GEN PURP 50V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,837
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Product details
Overview
ES2AAH from Taiwan Semiconductor is a 2A, 50V super fast surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 0.95V forward voltage at 2A/25°C, and AEC-Q101 qualification for automotive use in DC-DC converters and freewheeling circuits.
For engineers reviewing the ES2AAH datasheet, ES2AAH pinout, ES2AAH application, or ES2AAH equivalent, key selection criteria include repetitive peak reverse voltage (50V), surge current rating (50A), junction temperature range (−55°C to +150°C), thermal resistance (RθJL = 20°C/W), and RoHS/halogen-free compliance.
Technical Context
The ES2AAH employs a single-die, glass-passivated PN junction optimized for high-efficiency switching in low-voltage power conversion. Its 35ns trr and 0.95V VF at 2A enable reduced switching losses in high-frequency DC-DC topologies.
Designed for automotive-grade reliability, the ES2AAH meets AEC-Q101 stress test requirements and features moisture sensitivity level 1 (J-STD-020), matte tin-plated leads (J-STD-002), and JESD201 Class 2 whisker resistance - all verified under its DO-214AC mechanical construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse blocking voltage; defines safe operating ceiling in clamping/snubber circuits |
| IF | 2 A - Continuous average forward current; supports compact heatsinking in space-constrained automotive modules |
| trr | 35 ns - Measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables >1 MHz switching in synchronous rectification |
| VF | 0.95 V @ 2A, 25°C - Low conduction loss improves efficiency in 12V/24V automotive power rails |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; allows direct PCB copper pour thermal coupling without external heatsink |
| IFSM | 50 A - Non-repetitive peak surge current (8.3ms half-sine); withstands load dump transients in vehicle electrical systems |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case meeting UL 94V-0, cathode indicated by band, matte tin-plated leads, 0.060g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); polarity must align with PCB silkscreen marking |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); cathode band on package matches PCB cathode marking |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive underhood environments including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Enhances long-term reliability against humidity and contamination in unsealed automotive enclosures |
| Super fast recovery (35 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency SMPS designs |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; eliminates pre-conditioning delays in high-volume manufacturing |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side rectification in 12V-to-5V/3.3V buck converters powering infotainment ECUs. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 0.95V VF and 35ns trr minimize conduction and switching losses, improving overall converter efficiency by ≥1.2% at 500 kHz. | Use Scenario: LED driver output stage in adaptive front lighting systems (AFS) requiring transient robustness. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from LED current regulators during PWM dimming transitions. Use Value: 50A IFSM rating safely absorbs 12V load dump spikes; AEC-Q101 ensures operation across −40°C to +125°C ambient. |
| Car Interior Power | Industrial Control Module |
Use Scenario: Reverse polarity protection and freewheeling in 24V seat/mirror control modules. IC Role / Device Role / Timing Role: Unidirectional current gate preventing backfeed while enabling inductive coil energy dissipation. Use Value: DO-214AC low-profile footprint fits tight board spacing; RθJL = 20°C/W permits direct thermal coupling to ground plane. | Use Scenario: Input rectification in DIN-rail mounted PLC power supplies operating in factory environments. IC Role / Device Role / Timing Role: Primary AC-DC bridge leg component handling 50/60 Hz line input and high-frequency ripple. Use Value: Glass passivation and halogen-free construction meet industrial safety and environmental compliance (IEC 61249-2-21, RoHS). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EYH05-M3/45 | Same DO-214AC package, 50V VRRM, but 50ns trr and 1.05V VF @ 2A | Higher VF increases conduction loss; less suitable for high-efficiency 12V systems | Acceptable where cost sensitivity outweighs 0.1V VF penalty and 15ns slower recovery is tolerable |
| ON Semiconductor MUR250E | DO-201AD package (larger), 50V VRRM, 35ns trr, but 1.15V VF @ 2A and no AEC-Q101 qualification | Larger footprint limits layout density; lacks automotive qualification for underhood use | Only for non-automotive industrial applications where space and qualification are not constraints |
Compared with VS-2EYH05-M3/45 and MUR250E, the ES2AAH delivers the lowest forward voltage (0.95V) and maintains AEC-Q101 compliance in the smallest DO-214AC footprint - making it optimal for space- and efficiency-critical automotive power stages.
Availability
ES2AAH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter design, and industrial control module production requiring stable component supply and full traceability.
Supply support for ES2AAH 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 devices, and automotive-qualified components.
The ES2AAH belongs to TSC's ES2x series of super fast rectifiers engineered specifically for high-reliability automotive power conversion - balancing low VF, fast trr, and AEC-Q101 compliance in surface-mount packages.
FAQ
What is the maximum junction temperature rating for ES2AAH?
The ES2AAH has a maximum junction temperature (TJ) rating of +150°C, with an operational range from −55°C to +150°C. This rating is validated under AEC-Q101 stress testing and supports reliable operation in underhood automotive environments. The ES2AAH's RθJL of 20°C/W enables effective thermal transfer to the PCB, helping maintain safe junction temperatures even at full 2A continuous current.
Is ES2AAH qualified for automotive applications?
Yes, the ES2AAH is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, lighting modules, and body electronics. This qualification covers temperature cycling, high-temperature reverse bias, and humidity testing. The ES2AAH also features moisture sensitivity level 1 and matte tin-plated leads compliant with J-STD-002 - all critical for automotive manufacturing and field reliability.
What is the reverse recovery time (trr) of ES2AAH and how is it measured?
The ES2AAH has a reverse recovery time (trr) of 35 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is specified in the official Taiwan Semiconductor datasheet (Version A2102) and reflects performance at 25°C ambient. The ES2AAH's 35 ns trr contributes directly to reduced switching losses in high-frequency DC-DC converters.
Does ES2AAH have RoHS and halogen-free compliance?
Yes, the ES2AAH is RoHS compliant and halogen-free per IEC 61249-2-21. These environmental qualifications are explicitly stated in the Taiwan Semiconductor product documentation and verified through material declarations. The ES2AAH's halogen-free status applies to the molding compound and plating, supporting compliance in automotive and industrial end-equipment with strict chemical restrictions.
What package type does ES2AAH use and what are its key mechanical attributes?
The ES2AAH uses the DO-214AC (SMA) surface-mount package, with dimensions conforming to JEDEC standards. Key mechanical attributes include UL 94V-0 rated epoxy molding, cathode polarity indicated by a visible band, matte tin-plated solderable leads (J-STD-002), JESD201 Class 2 whisker resistance, and a typical weight of 0.060 g. These attributes ensure compatibility with automated placement and reflow processes used in automotive electronics manufacturing.
ES2AAH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2AAH FAQ
1.How can I place an order for ES2AAH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2AAH 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 ES2AAH reliable?
The price and inventory of ES2AAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2AAH is usually 5 days.
3.What payment methods are accepted for ES2AAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2AAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2AAH?
ES2AAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2AAH 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 ES2AAH?
For technical support, including ES2AAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2AAH requirements.
6.How does Aetrix verify that ES2AAH is sourced from the original manufacturer or authorized distributors?
All ES2AAH 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 ES2AAH meets industry standards.
7.What is the process for return or replacement of ES2AAH?
All ES2AAH units undergo pre-shipment inspection (PSI). If there is an issue with ES2AAH, 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 ES2AAH part is unused and in its original packaging.
Return procedure for ES2AAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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