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Taiwan Semiconductor Corporation ES2FAH
- Part No.:
- ES2FAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2FAH.pdf
- Description:
- DIODE GEN PURP 300V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,397
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Product details
Overview
ES2FAH from Taiwan Semiconductor is a 2 A, 400 V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35 ns reverse recovery time, 1.30 V forward voltage at 2 A, and 50 A peak surge current - deployed in automotive DC-DC converters and snubber circuits.
For engineers reviewing the ES2FAH datasheet, ES2FAH pinout, ES2FAH application, or ES2FAH equivalent, key selection criteria include its AEC-Q101 qualification, 400 V repetitive peak reverse voltage, 1.30 V VF at 2 A, 35 ns trr, and DO-214AC thermal performance (RθJA = 75 °C/W).
Technical Context
The ES2FAH is a single-die, unidirectional silicon rectifier optimized for high-frequency switching applications requiring low forward voltage drop and rapid turn-off. Its glass-passivated junction ensures reliability under thermal cycling and humidity exposure.
Designed for automotive-grade operation, it supports junction temperatures from –55 °C to +150 °C and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse blocking voltage; defines safe operating range in flyback or snubber circuits |
| IF | 2 A continuous - average forward current rating at TA = 25 °C; sets baseline conduction capability |
| trr | 35 ns - reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables >1 MHz switching efficiency |
| VF | 1.30 V at IF = 2 A, TJ = 25 °C - forward voltage drop directly impacts conduction loss and thermal design |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; determines heatsinking needs on standard FR-4 PCB |
| IFSM | 50 A - non-repetitive surge current handling for transient load events like motor startup or inductive kick |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.060 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit; must withstand full surge current and thermal stress |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; carries full reverse voltage; layout must minimize parasitic capacitance for fast switching |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics use including engine control, lighting, and ADAS power stages |
| Super fast recovery (35 ns) | Reduces switching losses and EMI in high-frequency DC-DC topologies above 500 kHz |
| Glass passivated junction | Enhances long-term reliability under temperature/humidity stress per JESD22-A101 and JESD22-A110 |
| DO-214AC low-profile package | Enables automated SMT placement and supports compact board layouts in space-constrained modules |
Applications
| Automotive DC-DC Converters | LED Driver Snubbers |
|---|---|
Use Scenario: High-efficiency 12 V to 5 V/3.3 V conversion in vehicle infotainment and body control modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: 35 ns trr minimizes dead-time losses; 400 V VRRM accommodates load-dump transients up to ISO 7637-2 Pulse 5a. | Use Scenario: Voltage spike suppression across LED driver MOSFETs in automotive headlamp systems. IC Role / Device Role / Timing Role: Fast freewheeling path during MOSFET turn-off to clamp inductive kick. Use Value: 1.30 V VF limits conduction loss; 50 A IFSM handles repetitive surge events without degradation. |
| Car Lighting Power Supplies | Industrial Freewheeling Diodes |
Use Scenario: Secondary-side rectification in constant-current LED drivers for daytime running lights (DRL) and tail lamps. IC Role / Device Role / Timing Role: Unidirectional current path with minimal forward drop and fast turn-off to maintain regulation accuracy. Use Value: AEC-Q101 qualification ensures lifetime reliability under automotive thermal cycling (–40 °C to +125 °C ambient). | Use Scenario: Inductive load commutation in PLC output modules driving solenoids and relays. IC Role / Device Role / Timing Role: Freewheeling diode across inductive coils to prevent voltage overshoot at switch turn-off. Use Value: 75 °C/W RθJA allows direct PCB copper pour cooling; DO-214AC footprint simplifies legacy board reuse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | 400 V VRRM, 2 A IF, 30 ns trr, TO-220AC package (larger, through-hole) | Higher thermal mass but requires through-hole assembly; not AEC-Q101 qualified | Prefer when higher surge robustness is needed and SMT is not required |
| MBR240 | 40 V VRRM, 2 A IF, Schottky architecture, 0.52 V VF, no reverse recovery | Lower voltage rating; unsuitable for 400 V bus applications; used only in low-V input DC-DC | Select only for ≤40 V systems where ultra-low VF outweighs reverse voltage need |
Compared with STTH2R04 and MBR240, the ES2FAH uniquely combines AEC-Q101 compliance, 400 V blocking, 35 ns trr, and DO-214AC SMT compatibility - making it the only drop-in solution for automotive SMT rectification at this voltage/current class.
Availability
ES2FAH is available at Aetrix Electronics and suitable for automotive DC-DC converters, LED driver snubbers, and industrial freewheeling applications requiring stable component supply and AEC-Q101 assurance.
Supply support for ES2FAH 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, serving automotive, industrial, and consumer markets since 1979.
The ES2FAH belongs to TSC's ES2xAH super fast rectifier family, engineered specifically for high-reliability, high-frequency power conversion in automotive and industrial environments where fast recovery, low VF, and AEC-Q101 validation are mandatory.
FAQ
What is the peak repetitive reverse voltage rating for ES2FAH?
The ES2FAH has a repetitive peak reverse voltage (VRRM) rating of 400 V. This value is explicitly specified in the Absolute Maximum Ratings table for the ES2FAH variant in the official Taiwan Semiconductor datasheet (Version A2102). It defines the maximum reverse-biased voltage the device can block repeatedly without breakdown under normal operating conditions.
Is ES2FAH qualified for automotive applications?
Yes, ES2FAH is AEC-Q101 qualified, as confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification validates its reliability for automotive power electronics, including temperature cycling, humidity testing, and mechanical shock - making ES2FAH suitable for under-hood and cabin applications such as lighting and DC-DC converters.
What is the forward voltage drop of ES2FAH at rated current?
The ES2FAH exhibits a maximum forward voltage (VF) of 1.30 V at 2 A forward current and 25 °C junction temperature. This value is specified in the Electrical Specifications table under "ES2FAH / ES2GAH" grouping and directly impacts conduction loss and thermal design in high-efficiency power supplies.
What package type does ES2FAH use, and what are its key mechanical attributes?
ES2FAH uses the DO-214AC (SMA) surface-mount package. Key attributes include matte tin-plated leads compliant with J-STD-002, polarity indicated by cathode band, UL 94V-0 molding compound, JESD201 Class 2 whisker resistance, and approximate weight of 0.060 g - all confirmed in the MECHANICAL DATA section of the datasheet.
What is the reverse recovery time (trr) of ES2FAH, and under what test conditions is it measured?
The ES2FAH has a maximum reverse recovery time (trr) of 35 ns, measured under the conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is critical for minimizing switching losses in high-frequency power converters and is verified in the ELECTRICAL SPECIFICATIONS table of the official datasheet.
ES2FAH 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):
- 300 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2FAH FAQ
1.How can I place an order for ES2FAH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2FAH 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 ES2FAH reliable?
The price and inventory of ES2FAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2FAH is usually 5 days.
3.What payment methods are accepted for ES2FAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2FAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2FAH?
ES2FAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2FAH 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 ES2FAH?
For technical support, including ES2FAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2FAH requirements.
6.How does Aetrix verify that ES2FAH is sourced from the original manufacturer or authorized distributors?
All ES2FAH 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 ES2FAH meets industry standards.
7.What is the process for return or replacement of ES2FAH?
All ES2FAH units undergo pre-shipment inspection (PSI). If there is an issue with ES2FAH, 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 ES2FAH part is unused and in its original packaging.
Return procedure for ES2FAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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