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Taiwan Semiconductor Corporation ES3FHR7G
- Part No.:
- ES3FHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ES3FHR7G.pdf
- Description:
- DIODE GEN PURP 300V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,972
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Product details
Overview
ES3FHR7G from Taiwan Semiconductor is a 3A, 400V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 35ns reverse recovery time, 1.30V max forward voltage at 3A/25°C, and 100A peak surge current - deployed in high-frequency switching mode power supplies for telecom and computing infrastructure.
For engineers reviewing the ES3FHR7G datasheet, ES3FHR7G pinout, ES3FHR7G application, or ES3FHR7G equivalent, key selection criteria include VRRM=400V, IF=3A, trr≤35ns, thermal resistance RθJA=47°C/W, and DO-214AB mechanical compatibility with automated SMT assembly.
Technical Context
This single-die, unidirectional silicon rectifier uses glass-passivated junction technology to achieve stable performance across -55°C to +150°C junction temperature range. Its 35ns reverse recovery time enables efficient operation in DC-DC converters operating above 100kHz, minimizing switching losses during freewheeling and flyback phases.
The device exhibits low junction capacitance (30pF at 1MHz/4V), supporting high-speed transient response in snubberless designs. With 12°C/W junction-to-lead thermal resistance and matte tin-plated leads compliant with J-STD-002, it delivers reliable solder joint integrity and thermal transfer in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or freewheeling configurations. |
| IF | 3 A continuous - Rated average forward current; determines heatsink sizing and derating curve usage above 75°C ambient. |
| trr | 35 ns - Measured at IF=0.5A, IR=1.0A, Irr=0.25A; enables >200kHz switching without excessive diode recovery loss. |
| VF (max) | 1.30 V at 3A/25°C - Forward conduction loss contributor; impacts efficiency in 12V–48V output stages of SMPS. |
| CJ | 30 pF at 1MHz/4V - Low junction capacitance reduces capacitive coupling noise and improves EMI profile in high-dv/dt environments. |
| RθJA | 47 °C/W - Junction-to-ambient thermal resistance; used with PCB copper area and airflow to calculate actual TJ rise. |
Pinout & Package
DO-214AB (SMC) surface-mount package: molded epoxy body with matte tin-plated leads, cathode band marking polarity, UL 94V-0 rated compound, and 0.210g typical weight. Compliant with JESD201 Class 2 whisker resistance and J-STD-020 moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); must withstand IFSM=100A surge. |
| Cathode | Forward current exit / reverse blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); marked by visible band; carries full load current and reverse leakage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability under thermal cycling and humidity exposure; eliminates need for conformal coating in industrial-grade assemblies. |
| Super fast recovery (35ns) | Reduces reverse recovery charge (Qrr) and associated switching loss, enabling higher frequency operation without snubbers. |
| DO-214AB (SMC) package | Supports automated pick-and-place; provides 2.3mm lead pitch and 7.1mm x 6.2mm footprint compatible with IPC-7351B SMC standard. |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for export-compliant telecom and datacom equipment. |
Applications
| Telecom AC-DC Front-End | Server VRM Freewheeling Diode |
|---|---|
Use Scenario: Input rectification stage in 48V telecom rectifiers handling 3kW+ power with PFC + LLC topology. IC Role / Device Role / Timing Role: Primary-side unidirectional current path during positive half-cycle; blocks reverse voltage during negative half-cycle. Use Value: 400V VRRM accommodates 340VAC peak + line surges; 35ns trr minimizes conduction loss in high-frequency PFC controllers. | Use Scenario: Synchronous rectification auxiliary diode in multiphase CPU voltage regulator modules. IC Role / Device Role / Timing Role: Freewheeling path during high-side MOSFET off-time; clamps inductive kickback from buck inductor. Use Value: 100A IFSM withstands transient current spikes; low CJ (30pF) prevents parasitic oscillation with gate drivers. |
| Industrial SMPS Output Stage | Automotive DC-DC Converter |
Use Scenario: Secondary-side rectification in 24V/5A isolated flyback supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional current delivery to output capacitor; conducts only when secondary winding voltage exceeds output rail. Use Value: 150°C TJMAX supports operation in sealed enclosures; 1.30V VF limits power dissipation to <1.5W at full load. | Use Scenario: 12V-to-5V/3.3V non-isolated buck converter in automotive infotainment head units. IC Role / Device Role / Timing Role: Catch diode in asynchronous buck topology; conducts during MOSFET off-time to maintain inductor current continuity. Use Value: DO-214AB mechanical robustness passes AEC-Q200 vibration testing; moisture level 1 ensures reflow reliability in humid manufacturing environments. |
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 | VRRM=400V, trr=30ns, VF=1.25V @3A - slightly faster recovery and lower VF, but RθJA=55°C/W. | Better for ultra-high-frequency (>500kHz) converters where Qrr dominates loss; less thermally efficient in constrained layouts. | Prefer STTH3L04S when board space allows larger thermal pad or forced air cooling is available. |
| MBR340F | VRRM=40V, Schottky architecture - zero reverse recovery, but limited to ≤40V systems and higher leakage (IR≈1mA @25°C). | Only viable in low-voltage DC-DC outputs (e.g., 5V/3.3V rails); unsuitable for 400V blocking or high-temp operation (>125°C). | Select MBR340F exclusively for sub-40V synchronous rectification where trr elimination outweighs leakage and voltage limitation. |
Compared with STTH3L04S and MBR340F, ES3FHR7G offers optimal balance of 400V blocking, 35ns recovery, and 47°C/W thermal performance in standard DO-214AB footprints - making it preferred for cost-sensitive, thermally constrained 100–300kHz telecom and industrial SMPS designs.
Availability
ES3FHR7G is available at Aetrix Electronics and suitable for telecom rectifiers, server VRMs, industrial SMPS, and automotive DC-DC converters requiring stable component supply, extended lifecycle support, and J-STD-020 Level 1 moisture handling.
Supply support for ES3FHR7G 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 power electronics and industrial markets since 1979.
The ES3x series targets high-efficiency, surface-mount rectification in switching power supplies - engineered for automated assembly, thermal resilience, and consistent parametric performance across wide temperature and surge conditions.
FAQ
What is the maximum junction temperature rating for ES3FHR7G?
The ES3FHR7G has a maximum junction temperature (TJMAX) of +150°C, with storage temperature range from -55°C to +150°C. This rating allows reliable operation in sealed industrial enclosures and high-ambient automotive environments when thermal design accounts for its RθJA of 47°C/W and RθJL of 12°C/W. Derating curves in the ES3FHR7G datasheet define usable current versus case temperature.
Does ES3FHR7G have a RoHS and halogen-free certification?
Yes, ES3FHR7G is RoHS compliant per EU Directive 2011/65/EU and halogen-free per IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002. These certifications are verified in Taiwan Semiconductor's official compliance documentation for the ES3x family, including ES3FHR7G.
What is the reverse recovery time (trr) test condition for ES3FHR7G?
The reverse recovery time of ES3FHR7G is specified as ≤35ns under the condition: IF=0.5A, IR=1.0A, and Irr=0.25A, measured at TA=25°C. This standardized test reflects real-world behavior during hard-switching transitions in buck and flyback topologies, and is confirmed in the Electrical Specifications table of the ES3FHR7G datasheet.
Is ES3FHR7G suitable for use in automotive applications?
ES3FHR7G is not AEC-Q101 qualified, but its DO-214AB package, Level 1 moisture sensitivity, -55°C to +150°C operating range, and JESD201 Class 2 whisker resistance make it suitable for non-safety-critical automotive DC-DC converters - such as infotainment or body control modules - provided system-level qualification is performed. For ASIL-B/C applications, AEC-Q101 alternatives should be selected.
What does the 'HR7G' suffix indicate in ES3FHR7G?
The 'HR7G' suffix in ES3FHR7G denotes Taiwan Semiconductor's internal packaging and environmental coding: 'H' indicates halogen-free compound, 'R7' specifies tape-and-reel packaging with 3,000 units per reel, and 'G' confirms green (lead-free) molding compound. This matches the ordering code structure defined in the ES3x family datasheet for ES3FHR7G.
ES3FHR7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 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:
- 30pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES3FHR7G FAQ
1.How can I place an order for ES3FHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for ES3FHR7G 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 ES3FHR7G reliable?
The price and inventory of ES3FHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3FHR7G is usually 5 days.
3.What payment methods are accepted for ES3FHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3FHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES3FHR7G?
ES3FHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES3FHR7G 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 ES3FHR7G?
For technical support, including ES3FHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3FHR7G requirements.
6.How does Aetrix verify that ES3FHR7G is sourced from the original manufacturer or authorized distributors?
All ES3FHR7G 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 ES3FHR7G meets industry standards.
7.What is the process for return or replacement of ES3FHR7G?
All ES3FHR7G units undergo pre-shipment inspection (PSI). If there is an issue with ES3FHR7G, 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 ES3FHR7G part is unused and in its original packaging.
Return procedure for ES3FHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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