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Taiwan Semiconductor Corporation ES3FB
- Part No.:
- ES3FB
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ES3FB.pdf
- Description:
- DIODE GEN PURP 300V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,994
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Product details
Overview
ES3FB from Taiwan Semiconductor is a 400V repetitive peak reverse voltage, 3A average forward current super fast surface-mount rectifier in DO-214AA (SMB) package, with 35ns reverse recovery time and 0.98V typical forward voltage at 3.0A/25°C. It serves as primary-side output rectification in high-frequency switching power supplies requiring low conduction loss and fast transient response.
For engineers reviewing the ES3FB datasheet, ES3FB pinout, ES3FB application, or ES3FB equivalent, key selection criteria include its 400V VRRM rating, 35ns trr for reduced switching loss, 0.98V VF at rated current, thermal resistance of 24°C/W (junction-to-lead), and SMB package compatibility with automated SMT assembly.
Technical Context
The ES3FB operates as a single-die silicon PN junction rectifier with glass passivated chip junction for reliability under thermal cycling. Its super fast recovery (trr ≤ 35ns) enables use in 100–500kHz SMPS topologies where reverse recovery charge minimization is critical to efficiency.
Thermal performance is defined for PCB mounting on 10mm × 10mm copper pad: RθJL = 24°C/W ensures effective heat transfer to the PCB lead frame, while RθJA = 84°C/W reflects ambient-limited dissipation in standard layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating margin in 280V DC bus applications. |
| IF(AV) | 3 A - Continuous average forward current; supports up to 36W output at 12V with 10°C/W heatsink margin. |
| trr | 35 ns - Reverse recovery time; reduces switching loss and EMI in high-frequency converters. |
| VF @ 3A, 25°C | 0.98 V - Forward voltage drop; determines conduction loss of ~2.94W at full load. |
| RθJL | 24 °C/W - Junction-to-lead thermal resistance; enables direct thermal path to PCB copper for passive cooling. |
| CJ @ 4V | 41 pF - Junction capacitance; impacts high-frequency snubber design and EMI filter sizing. |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or LLC resonant node). |
| Cathode | Forward current exit point | Connected to output rail; cathode band marks this terminal for correct PCB orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances humidity resistance and long-term reliability in humid industrial environments without conformal coating. |
| Super fast recovery (trr ≤ 35ns) | Reduces reverse recovery current spike and associated switching losses in 200–500kHz flyback and LLC converters. |
| Low profile SMB package | Enables compact board layout with 3.5mm height clearance; compatible with standard SMT reflow profiles. |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment. |
Applications
| Switching Mode Power Supply (SMPS) | AC-DC Adapters |
|---|---|
Use Scenario: Primary-side synchronous rectification in 65–150W offline flyback converters. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency AC from transformer secondary to regulated DC output. Use Value: 35ns trr minimizes dead-time loss and improves efficiency by >0.8% at 100kHz vs. standard fast rectifiers. | Use Scenario: Secondary-side rectification in universal-input 12V/2.5A wall adapters. IC Role / Device Role / Timing Role: Unidirectional current path delivering clean DC to USB-PD or legacy 5V/12V rails. Use Value: 0.98V VF at 3A reduces thermal rise on compact PCBs, enabling smaller heatsinks or no heatsink. |
| LED Lighting Drivers | DC-DC Converters |
Use Scenario: Output rectification in isolated buck-boost LED drivers for streetlight modules. IC Role / Device Role / Timing Role: High-reliability rectifier handling 3A pulsed LED current with minimal voltage overshoot. Use Value: 400V VRRM provides 2× safety margin over 200V DC bus, preventing catastrophic failure during line surges. | Use Scenario: Input rectification in 48V input telecom DC-DC bricks feeding 12V intermediate bus. IC Role / Device Role / Timing Role: Front-end AC/DC or DC/DC stage rectifier in high-density power modules. Use Value: 24°C/W RθJL allows direct thermal coupling to copper plane, sustaining 3A continuous at 85°C ambient. |
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-ES3D-M3/5BT | VRRM = 200V, VF = 0.86V @ 3A, trr = 35ns, same SMB package | Limited to ≤200V systems; unsuitable for 400V PFC or 380V DC bus outputs | Select only when VRRM requirement is ≤200V and lower VF is prioritized over voltage headroom. |
| ON Semiconductor MUR340G | VRRM = 400V, VF = 1.25V @ 3A, trr = 50ns, DO-201AD package (larger than SMB) | Higher VF increases conduction loss by ~0.8W; larger package requires PCB redesign | Use only if existing design uses DO-201AD footprint and trr < 50ns is acceptable. |
Compared with VS-ES3D-M3/5BT and MUR340G, the ES3FB uniquely balances 400V blocking capability, 0.98V VF, and 35ns trr in the compact SMB package-enabling higher power density and efficiency in space-constrained 400V-rated SMPS designs.
Availability
ES3FB is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, and LED lighting drivers requiring stable component supply with consistent parametric performance across production lots.
Supply support for ES3FB 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 since 1979.
The ES3x series was designed specifically for high-efficiency, high-frequency AC-DC and DC-DC conversion in consumer, industrial, and lighting applications where fast recovery, low VF, and SMB packaging are essential.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) rating for ES3FB?
The ES3FB has a VRRM rating of 400 V, meaning it can safely block up to 400 volts of reverse voltage repeatedly without breakdown. This rating is verified per JEDEC test conditions and applies across the full operating temperature range of –55°C to +150°C. The ES3FB datasheet confirms this value in the Absolute Maximum Ratings table on page 1.
What is the forward voltage drop (VF) of ES3FB at 3A and 25°C?
The ES3FB exhibits a typical forward voltage drop of 0.98 V at 3.0 A and 25°C, with a maximum of 1.13 V under the same conditions. This value is measured using pulse testing (PW = 0.3 ms) and is specified in the Electrical Specifications table on page 2 of the ES3FB datasheet.
Does ES3FB have a defined reverse recovery time (trr), and what is its value?
Yes, the ES3FB has a specified reverse recovery time of ≤35 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This super fast recovery characteristic is confirmed in the Electrical Specifications section and distinguishes ES3FB from standard fast recovery rectifiers used in lower-frequency applications.
What package type does ES3FB use, and is it RoHS compliant?
The ES3FB uses the DO-214AA (SMB) surface-mount package with matte tin-plated leads and is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its moisture sensitivity level is rated at Level 1 (unlimited floor life), making it suitable for standard SMT assembly without dry-pack requirements.
What is the junction-to-lead thermal resistance (RθJL) of ES3FB, and how is it measured?
The ES3FB has a typical junction-to-lead thermal resistance (RθJL) of 24°C/W, measured with the device mounted on a 10 mm × 10 mm copper pad PCB per JESD51-3. This parameter reflects the dominant thermal path from die to solder joint and is critical for estimating temperature rise under continuous 3A operation.
ES3FB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.13 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- 41pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES3FB FAQ
1.How can I place an order for ES3FB through Aetrix?
Please submit a Request for Quotation (RFQ) for ES3FB 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 ES3FB reliable?
The price and inventory of ES3FB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3FB is usually 5 days.
3.What payment methods are accepted for ES3FB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3FB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES3FB?
ES3FB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES3FB 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 ES3FB?
For technical support, including ES3FB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3FB requirements.
6.How does Aetrix verify that ES3FB is sourced from the original manufacturer or authorized distributors?
All ES3FB 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 ES3FB meets industry standards.
7.What is the process for return or replacement of ES3FB?
All ES3FB units undergo pre-shipment inspection (PSI). If there is an issue with ES3FB, 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 ES3FB part is unused and in its original packaging.
Return procedure for ES3FB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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