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Taiwan Semiconductor Corporation ES3A V7G
- Part No.:
- ES3A V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
ES3A V7G.pdf
- Description:
- DIODE GEN PURP 50V 3A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,223
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Product details
Overview
ES3A V7G from Taiwan Semiconductor is a 3A, 50V super fast recovery surface-mount rectifier in DO-214AB (SMC) package, featuring 35ns reverse recovery time, 0.95V max forward voltage at 3A/25°C, and 100A peak surge current. It serves as a primary output rectifier in high-frequency switching mode power supplies for telecom and computing applications.
For engineers reviewing the ES3A V7G datasheet, ES3A V7G pinout, ES3A V7G application, or ES3A V7G equivalent, key selection criteria include repetitive peak reverse voltage (50V), thermal resistance (RθJA = 47°C/W), junction temperature range (–55°C to +150°C), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
This discrete silicon rectifier uses a single-die, glass-passivated PN junction optimized for high-efficiency DC-DC conversion. Its super fast recovery (trr ≤ 35 ns) minimizes switching losses in 100 kHz–1 MHz SMPS topologies, while the DO-214AB package supports automated placement and meets UL 94V-0 flammability rating.
The device operates with a maximum junction temperature of 150°C and exhibits low leakage (IR ≤ 10 µA at 25°C, ≤ 500 µA at 100°C) and stable capacitance (45 pF at 1 MHz, 4 V). Polarity is marked by a cathode band; terminals are matte tin-plated per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 3 A continuous - supports mid-power secondary-side rectification without forced cooling |
| Repetitive Peak Reverse Voltage (VRRM) | 50 V - suitable for 12–24 V output rails in isolated flyback or forward converters |
| Reverse Recovery Time (trr) | ≤ 35 ns - enables high-frequency operation with reduced EMI and diode switching loss |
| Forward Voltage (VF) | ≤ 0.95 V at 3 A, 25°C - lowers conduction loss and improves system efficiency vs. standard fast rectifiers |
| Junction-to-Ambient Thermal Resistance (RθJA) | 47 °C/W - requires minimal PCB copper area for thermal management in SMT layouts |
| Moisture Sensitivity Level | Level 1 (J-STD-020) - no baking required before reflow, compatible with standard assembly lines |
Pinout & Package
Package: DO-214AB (SMC) - surface-mount, molded plastic case with matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to transformer secondary or switch node; must handle 3 A DC and 100 A surge |
| Cathode | Current exit point during forward conduction; marked by band | Connected to output capacitor or load; defines reference for reverse voltage rating (50 V) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure |
| Super fast recovery (≤35 ns) | Reduces switching loss and ringing in high-frequency SMPS designs |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental regulations for industrial/compute end equipment |
| J-STD-020 Level 1 MSL | Eliminates pre-bake step, reducing manufacturing cost and process complexity |
Applications
| Telecom AC-DC Adapters | Server VRM Output Rectification |
|---|---|
Use Scenario: 48 V input, 12 V/20 A output flyback converter in telecom power brick. IC Role / Device Role / Timing Role: Primary output rectifier handling continuous 3 A average current and high dv/dt transients. Use Value: Low VF (≤0.95 V) reduces conduction loss; 35 ns trr suppresses switching noise near 500 kHz switching frequency. | Use Scenario: Point-of-load (POL) buck-derived converter supplying CPU core voltage. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectifier-assisted topology during low-duty-cycle operation. Use Value: Fast recovery prevents cross-conduction loss; DO-214AB footprint allows dense layout with minimal parasitic inductance. |
| Industrial PLC Power Modules | Networking Switch Power Supplies |
Use Scenario: Dual-output (5 V/12 V) forward converter powering logic and I/O circuitry in programmable logic controllers. IC Role / Device Role / Timing Role: Secondary-side rectifier on 12 V winding, operating continuously at 80% load. Use Value: RθJA = 47°C/W enables operation up to 75°C ambient without heatsink; Level 1 MSL simplifies factory reflow. | Use Scenario: 3.3 V standby rail generation in multi-output LLC resonant converter for enterprise switches. IC Role / Device Role / Timing Role: Auxiliary rectifier for bias supply, subjected to frequent start-stop cycles and transient surges. Use Value: 100 A IFSM withstands inrush into bulk capacitors; cathode band ensures unambiguous polarity during automated assembly. |
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-3EYH05-M3/45 | Same DO-214AB package, 50 V VRRM, but trr = 50 ns (max), VF = 1.05 V (max) at 3 A | Slightly higher conduction and switching loss; acceptable where <500 kHz operation suffices | Preferred when Vishay supply chain alignment is required; verify layout compatibility with identical footprint |
| ON Semiconductor MUR350G | DO-201AD package (axial lead), 50 V VRRM, trr = 35 ns, VF = 0.92 V (max) - different mechanical form factor | Not SMT-compatible; requires through-hole assembly and board space reallocation | Select only for legacy through-hole designs or prototyping where reflow capability is unavailable |
Compared with VS-3EYH05-M3/45 and MUR350G, the ES3A V7G delivers lower forward voltage and tighter trr tolerance in an industry-standard SMT package, enabling higher efficiency and smaller PCB area in new high-density power designs.
Availability
ES3A V7G is available at Aetrix Electronics and suitable for telecom adapters, server VRMs, industrial PLC power modules, and networking switch power supplies requiring stable component supply and J-STD-020 Level 1 assembly compatibility.
Supply support for ES3A V7G 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 communications markets since 1979.
The ES3A V7G belongs to TSC's ES3x super fast rectifier family, engineered specifically for high-efficiency, high-frequency secondary-side rectification in compact, thermally constrained power supplies.
FAQ
What is the maximum junction temperature rating for ES3A V7G?
The ES3A V7G has a maximum junction temperature (TJ) of +150°C and a minimum of –55°C. This wide operating range allows reliable use in industrial environments where ambient temperatures exceed 70°C. The device's RθJA of 47°C/W means that at 3 A continuous current and 25°C ambient, junction temperature rise is approximately 141°C - well within its 150°C limit. Always refer to the derating curve in the ES3A V7G datasheet for precise thermal design.
Is ES3A V7G RoHS and halogen-free compliant?
Yes, the ES3A V7G is fully RoHS compliant and halogen-free per IEC 61249-2-21. Taiwan Semiconductor confirms this in the official ES3A V7G datasheet (Version N2102), and the device carries appropriate marking and certification documentation. These compliance attributes make ES3A V7G suitable for export to EU, Japan, and other regulated markets requiring strict environmental material controls.
What does the 'V7G' suffix in ES3A V7G indicate?
The 'V7G' suffix in ES3A V7G denotes Taiwan Semiconductor's internal packaging and environmental code: 'V' indicates tape-and-reel packaging (3,000 pcs/reel), '7' specifies green molding compound (halogen-free), and 'G' confirms RoHS compliance. This coding aligns with TSC's ordering nomenclature in the ES3x family datasheet and is verified on official distributor listings and TSC product change notices.
Can ES3A V7G replace a standard fast recovery diode like FR304 in a 50 V application?
Yes, ES3A V7G can replace FR304 in 50 V applications, but with performance advantages: ES3A V7G offers faster recovery (≤35 ns vs. ~150 ns for FR304), lower forward voltage (≤0.95 V vs. ~1.3 V), and superior thermal resistance (47°C/W vs. ~65°C/W). However, ensure PCB pad layout matches DO-214AB (SMC), not DO-201AD - mechanical fit must be verified before substitution.
What is the reverse leakage current specification for ES3A V7G at elevated temperature?
The ES3A V7G reverse leakage current (IR) is specified as ≤10 µA at 25°C and ≤500 µA at 100°C, measured at rated VRRM (50 V). This low high-temperature leakage supports stable operation in thermally demanding environments such as enclosed server power supplies. The value is confirmed in the Electrical Specifications table of the official ES3A V7G datasheet (N2102, Page 2).
ES3A V7G 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):
- 50 V
- Current - Average Rectified (Io):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 50 V
- Capacitance @ Vr, F:
- 45pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES3A V7G FAQ
1.How can I place an order for ES3A V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for ES3A V7G 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 ES3A V7G reliable?
The price and inventory of ES3A V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES3A V7G is usually 5 days.
3.What payment methods are accepted for ES3A V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES3A V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES3A V7G?
ES3A V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES3A V7G 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 ES3A V7G?
For technical support, including ES3A V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES3A V7G requirements.
6.How does Aetrix verify that ES3A V7G is sourced from the original manufacturer or authorized distributors?
All ES3A V7G 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 ES3A V7G meets industry standards.
7.What is the process for return or replacement of ES3A V7G?
All ES3A V7G units undergo pre-shipment inspection (PSI). If there is an issue with ES3A V7G, 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 ES3A V7G part is unused and in its original packaging.
Return procedure for ES3A V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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