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Taiwan Semiconductor Corporation ES2FA R3G
- Part No.:
- ES2FA R3G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2FA R3G.pdf
- Description:
- DIODE GEN PURP 300V 2A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,925
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Product details
Overview
ES2FA R3G from Taiwan Semiconductor is a 2A, 400V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 1.30V max forward voltage at 2A/25°C, and 50A peak surge current - deployed in DC-DC converters and snubber circuits for high-frequency switching efficiency.
For engineers reviewing the ES2FA R3G datasheet, ES2FA R3G pinout, ES2FA R3G application, or ES2FA R3G equivalent, key selection criteria include repetitive peak reverse voltage (400V), thermal resistance (RθJL = 20°C/W), junction temperature range (–55°C to +150°C), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
This single-die, unidirectional silicon rectifier uses glass-passivated junction technology to achieve stable performance under high dv/dt conditions. Its super-fast trr ≤35ns enables use in 100–500 kHz switching topologies without excessive switching loss.
The device operates with rated forward current of 2A continuous at 75°C lead temperature, supported by low RθJA = 75°C/W and RθJL = 20°C/W. Reverse leakage remains ≤10 µA at 25°C and ≤350 µA at 125°C under full rated VRRM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports DC-DC stages with 320V nominal bus or 280V RMS input |
| IF | 2 A continuous - delivers full-rated current with ≤75°C lead temperature in standard PCB layout |
| trr | ≤35 ns - minimizes turn-off loss in high-frequency flyback and resonant converters |
| VF | ≤1.30 V @ 2A, 25°C - reduces conduction loss vs. standard fast rectifiers (typically ≥1.5V) |
| RθJL | 20 °C/W - enables direct thermal coupling to copper pour for reliable 2A operation |
| IFSM | 50 A @ 8.3ms - withstands inrush and transient overloads in power supply startup |
| Junction temp | –55°C to +150°C - qualified for industrial and automotive under-hood ambient conditions |
Pinout & Package
DO-214AC (SMA) surface-mount package with molded epoxy body (UL 94V-0), matte tin-plated leads, cathode band polarity marking, and 0.060g mass. Lead finish complies with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal | Connected to lower-potential node (e.g., switch node in boost/flyback) |
| Cathode | Current exit terminal | Marked by band; ties to output rail or energy storage capacitor positive |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term reliability under humidity and thermal cycling stress per J-STD-020 Level 1 |
| Super-fast 35ns recovery | Reduces switching loss in 200–500 kHz SMPS designs versus standard fast rectifiers (≥75ns) |
| Low-profile SMA package | Enables automated pick-and-place and fits height-constrained layouts (<2.3mm profile) |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| DC-DC Converter Output Rectification | Snubber Network Clamp Diode |
|---|---|
Use Scenario: High-efficiency isolated flyback converter delivering 12V/2A output from 375V DC bus. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer reset phase; handles 2A average forward current. Use Value: 35ns trr prevents reverse recovery tail current from overlapping with primary switch turn-on, reducing EMI and losses. | Use Scenario: RCD snubber across MOSFET drain-source in a 200kHz half-bridge inverter. IC Role / Device Role / Timing Role: Clamp diode conducting only during voltage spike events; sustains <1µs pulses. Use Value: Low CJ (20pF) and fast trr minimize snubber ringback and ensure clean voltage clamping. |
| Freewheeling Diode in Buck Regulator | Lighting Driver Freewheel Path |
Use Scenario: 1MHz synchronous buck converter powering FPGA core voltage (0.85V/15A). IC Role / Device Role / Timing Role: Asynchronous freewheeling path when high-side FET is off; conducts 2A average current. Use Value: 1.30V VF limits conduction loss to <2.6W at 2A, enabling thermally viable passive cooling. | Use Scenario: LED driver with constant-current buck topology driving 48V string at 350mA. IC Role / Device Role / Timing Role: Freewheeling path during PWM off-time; handles 2A peak inductive current. Use Value: DO-214AC package allows compact placement near inductor; J-STD-020 Level 1 rating ensures reflow compatibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R04 | Same 2A/400V rating; trr = 30ns (slightly faster); VF = 1.35V (slightly higher) | Optimized for higher-speed PFC stages; tighter trr tolerance | Prefer when minimizing reverse recovery jitter is critical in interleaved designs |
| MBR240 | Schottky construction; VF ≈ 0.52V; VRRM = 40V only - not voltage-compatible | Only suitable for ≤40V output rails; no reverse recovery but limited voltage range | Select only for low-VOUT DC-DC where ultra-low VF outweighs voltage limitation |
Compared with STTH2R04 and MBR240, the ES2FA R3G offers balanced trade-offs: sufficient speed (35ns) for 200–500 kHz operation, robust 400V rating for universal-input SMPS, and lower forward drop than standard fast rectifiers - making it optimal for cost-sensitive industrial and lighting power supplies where voltage headroom and thermal margin are prioritized.
Availability
ES2FA R3G is available at Aetrix Electronics and suitable for DC-DC converters, snubber networks, freewheeling paths, and LED lighting drivers requiring stable component supply and J-STD-020 Level 1 reflow compatibility.
Supply support for ES2FA R3G 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 global industrial, computing, and consumer markets since 1979.
The ES2xx series is part of TSC's high-reliability surface-mount rectifier product line, engineered specifically for high-frequency switching power supplies demanding consistent trr, low VF, and robust thermal performance in compact DO-214AC packages.
FAQ
What is the maximum repetitive peak reverse voltage rating for ES2FA R3G?
The ES2FA R3G has a maximum repetitive peak reverse voltage (VRRM) of 400 V. This rating is defined per the manufacturer's absolute maximum specifications and applies under standard operating conditions (TA = 25°C). It ensures safe blocking capability in applications such as 375V DC bus flyback outputs or 280V RMS AC-DC front ends. Derating is required above 75°C ambient per the forward current derating curve.
Does ES2FA R3G have a specified reverse recovery time, and how is it measured?
Yes, ES2FA R3G has a maximum reverse recovery time (trr) of 35 ns. It is measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, with specified test circuit per Figure 6 in the datasheet. This value reflects performance in high-frequency switching environments and is consistent across the ES2FA–ES2JA family due to shared die design and process.
What package type and mounting compatibility does ES2FA R3G support?
ES2FA R3G uses the DO-214AC (SMA) surface-mount package with cathode band polarity marking, matte tin-plated leads, and UL 94V-0 molding compound. It supports J-STD-002 solderability and J-STD-020 Level 1 moisture sensitivity - enabling standard reflow profiles without baking. The footprint matches industry-standard SMA land patterns with recommended pad layout per TSC Package Outline Drawing.
Is ES2FA R3G halogen-free and RoHS compliant?
Yes, ES2FA R3G is both halogen-free per IEC 61249-2-21 and RoHS compliant per EU Directive 2011/65/EU. These compliance statements are confirmed in the official TSC product documentation (Version M2102) and verified through material declarations. No brominated flame retardants or chlorine-based compounds exceed threshold limits in the epoxy molding compound or lead finish.
What is the forward voltage drop of ES2FA R3G at rated current and temperature?
The ES2FA R3G exhibits a maximum forward voltage (VF) of 1.30 V at IF = 2 A and TJ = 25°C, per electrical specifications. At elevated junction temperatures (e.g., 125°C), VF decreases slightly due to semiconductor physics, but system-level thermal design must maintain TJ ≤150°C to ensure reliability and sustained 2A conduction capability.
ES2FA R3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2FA R3G FAQ
1.How can I place an order for ES2FA R3G through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2FA R3G 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 ES2FA R3G reliable?
The price and inventory of ES2FA R3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2FA R3G is usually 5 days.
3.What payment methods are accepted for ES2FA R3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2FA R3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2FA R3G?
ES2FA R3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2FA R3G 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 ES2FA R3G?
For technical support, including ES2FA R3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2FA R3G requirements.
6.How does Aetrix verify that ES2FA R3G is sourced from the original manufacturer or authorized distributors?
All ES2FA R3G 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 ES2FA R3G meets industry standards.
7.What is the process for return or replacement of ES2FA R3G?
All ES2FA R3G units undergo pre-shipment inspection (PSI). If there is an issue with ES2FA R3G, 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 ES2FA R3G part is unused and in its original packaging.
Return procedure for ES2FA R3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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