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Taiwan Semiconductor Corporation ES3FBH
- Part No.:
- ES3FBH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ES3FBH.pdf
- Description:
- DIODE GEN PURP 300V 3A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,900
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Product details
Overview
ES3FBH from Taiwan Semiconductor is a 3A, 400V super fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 35ns reverse recovery time, 0.98V typical forward voltage at 3A/25°C, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-frequency DC-DC converters and automotive lighting systems.
For engineers reviewing the ES3FBH datasheet, ES3FBH pinout, ES3FBH application, or ES3FBH equivalent, key selection criteria include peak repetitive reverse voltage (400V), surge current capability (100A), thermal resistance (RθJL = 24°C/W), junction temperature range (–55°C to +150°C), and low-profile SMB packaging for space-constrained PCB layouts.
Technical Context
The ES3FBH employs a glass-passivated silicon junction optimized for super-fast switching with minimal reverse recovery charge, enabling high-efficiency operation in 100–500 kHz DC-DC topologies. Its single-die configuration and matte tin-plated leads ensure compatibility with automated SMT assembly and J-STD-002 solderability requirements.
Thermally, the device delivers RθJL = 24°C/W and RθJA = 84°C/W when mounted on a 10mm × 10mm copper pad, supporting continuous 3A conduction up to +125°C ambient with appropriate board-level heat spreading. Junction capacitance is 41pF at 1MHz/4V, contributing to low EMI in high-speed switching nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in snubber or freewheeling paths with 400V rail or transient margin. |
| IF | 3 A - Continuous average forward current; supports sustained power conversion at up to 3A without derating below 75°C ambient. |
| trr | 35 ns - Reverse recovery time; enables efficient operation in high-frequency (>200 kHz) switching applications with minimal switching loss. |
| VF @ 3A, 25°C | 0.98 V (typ) - Low forward voltage drop reduces conduction loss and improves system efficiency in 12V–48V automotive DC-DC stages. |
| RθJL | 24 °C/W - Junction-to-lead thermal resistance; allows direct thermal coupling to PCB copper for reliable 3A operation without external heatsink. |
| CJ @ 1MHz, 4V | 41 pF - Junction capacitance; minimizes capacitive coupling noise and aids EMI control in high-dv/dt environments. |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.110 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must be routed with low-inductance trace for fast recovery. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); cathode band marks this terminal for correct orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
| Glass passivated junction | Provides stable leakage performance and long-term reliability under high-humidity and high-temperature operating conditions. |
| Super fast recovery (35 ns) | Reduces reverse recovery loss and associated ringing, improving efficiency and simplifying EMI filter design in SMPS. |
| DO-214AA (SMB) package | Low-profile (2.6 mm height), industry-standard footprint compatible with automated pick-and-place and reflow processes. |
| Moisture sensitivity level 1 | Zero bake requirement before SMT assembly; supports unlimited floor life under JEDEC J-STD-020 conditions. |
Applications
| Automotive LED Lighting | DC-DC Buck Converter Freewheeling |
|---|---|
Use Scenario: High-brightness LED headlamp driver with 24V input and PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck topology, conducting during low-side switch off-time. Use Value: 35ns trr minimizes voltage overshoot across MOSFET; 0.98V VF reduces power loss and thermal stress at 3A peak LED current. | Use Scenario: 48V-to-12V automotive DC-DC module powering infotainment and ADAS ECUs. IC Role / Device Role / Timing Role: Output rectifier in non-synchronous buck stage, handling continuous 3A load current. Use Value: AEC-Q101 qualification ensures reliability over –40°C to +125°C ambient; RθJL = 24°C/W enables direct PCB thermal path without heatsink. |
| Snubber Network in Ignition Systems | Industrial AC-DC Auxiliary Supply |
Use Scenario: RCD snubber across ignition coil primary winding in gasoline engine control units. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing inductive kickback energy during MOSFET turn-off. Use Value: 400V VRRM withstands >300V transients; 100A IFSM handles repetitive surge events without degradation. | Use Scenario: Auxiliary 24V supply derived from 3-phase industrial AC line via bridge rectification and buck regulation. IC Role / Device Role / Timing Role: Input rectifier in discrete bridge or as standalone high-voltage clamp in flyback auxiliary winding. Use Value: 150°C TJMAX supports operation in enclosed enclosures; halogen-free and RoHS-compliant construction meets industrial safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3L04S | 400V VRRM, 3A IF, 30ns trr, TO-277 package (lower profile than SMB but different footprint) | Same voltage/current rating; slightly faster recovery but requires PCB redesign due to non-SMB outline | Select if 30ns trr is critical and layout revision is acceptable. |
| SB340-E3/5BT | 40V VRRM, 3A IF, Schottky architecture, no reverse recovery, VF ≈ 0.55V @ 3A | Not suitable for 400V applications; limited to ≤40V circuits where ultra-low VF outweighs voltage limitation | Only consider for low-voltage (<40V), high-efficiency designs where reverse voltage stress is <40V. |
Compared with STTH3L04S and SB340-E3/5BT, the ES3FBH uniquely balances 400V blocking, 35ns recovery, SMB compatibility, and AEC-Q101 qualification-making it the only drop-in solution for automotive 400V-rated freewheeling and snubber roles without footprint change or derating.
Availability
ES3FBH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC buck converter freewheeling, and snubber network applications requiring stable component supply, long-lifecycle assurance, and AEC-Q101 compliance.
Supply support for ES3FBH 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 ES3FBH belongs to TSC's ES3x series of AEC-Q101-qualified super fast rectifiers, engineered specifically for high-reliability automotive power conversion where fast recovery, thermal robustness, and SMT manufacturability are essential.
FAQ
What is the maximum repetitive peak reverse voltage rating for ES3FBH?
The ES3FBH has a maximum repetitive peak reverse voltage (VRRM) of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2102). This rating defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions, making ES3FBH suitable for 400V-class snubber and freewheeling applications in automotive and industrial power supplies.
Is ES3FBH qualified for automotive applications?
Yes, ES3FBH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-ensuring reliability in automotive underhood environments. The ES3FBH datasheet states AEC-Q101 qualification as a core feature, confirming its suitability for automotive LED lighting, engine control, and ADAS power systems.
What is the forward voltage drop of ES3FBH at 3A and 25°C?
The typical forward voltage (VF) of ES3FBH is 0.98 V at 3A and 25°C, with a maximum of 1.13 V under the same conditions. This value is specified in the Electrical Specifications table for the ES3FBH variant and directly impacts conduction loss and thermal performance in high-current DC-DC stages. At 125°C junction temperature, VF drops to 0.83 V (typ), reflecting the negative temperature coefficient of silicon PN junctions.
Does ES3FBH have a defined reverse recovery time?
Yes, ES3FBH has a specified reverse recovery time (trr) of 35 ns maximum, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is documented in the Electrical Specifications section and confirms ES3FBH's classification as a super fast recovery rectifier-critical for minimizing switching losses and EMI in high-frequency power converters operating above 100 kHz.
What package type does ES3FBH use, and is it RoHS compliant?
ES3FBH uses the DO-214AA (SMB) surface-mount package, with matte tin-plated leads and moisture sensitivity level 1 per J-STD-020. It is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the Features section of the official datasheet. The SMB footprint is widely supported in automated assembly lines and offers a favorable thermal path via the cathode/anode leads to PCB copper.
ES3FBH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES3FBH FAQ
1.How can I place an order for ES3FBH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES3FBH 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 ES3FBH reliable?
The price and inventory of ES3FBH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3FBH is usually 5 days.
3.What payment methods are accepted for ES3FBH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3FBH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES3FBH?
ES3FBH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES3FBH 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 ES3FBH?
For technical support, including ES3FBH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3FBH requirements.
6.How does Aetrix verify that ES3FBH is sourced from the original manufacturer or authorized distributors?
All ES3FBH 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 ES3FBH meets industry standards.
7.What is the process for return or replacement of ES3FBH?
All ES3FBH units undergo pre-shipment inspection (PSI). If there is an issue with ES3FBH, 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 ES3FBH part is unused and in its original packaging.
Return procedure for ES3FBH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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