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Taiwan Semiconductor Corporation ES2GAF-T
- Part No.:
- ES2GAF-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
ES2GAF-T.pdf
- Description:
- 35NS, 2A, 400V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
ES2GAF-T from Taiwan Semiconductor is a 2 A, 400 V super fast surface-mount rectifier in SMAF package, featuring 1.13 V forward voltage at 2 A and 25°C, 35 ns reverse recovery time, and 21 pF junction capacitance - optimized for high-frequency switching mode power supplies and freewheeling paths.
For engineers reviewing the ES2GAF-T datasheet, ES2GAF-T pinout, ES2GAF-T application, or ES2GAF-T equivalent, key selection criteria include its 400 V repetitive peak reverse voltage, low 1.13 V VF at rated current, thermal resistance of 15 °C/W (junction-to-lead), moisture sensitivity level 1 compliance, and RoHS/halogen-free qualification.
Technical Context
This single-die, unidirectional silicon rectifier uses glass-passivated junction technology to achieve stable reverse leakage (<5 µA at 25°C) and rapid switching performance. Its 35 ns trr and low CJ (21 pF) support operation in DC–DC converters and inverters operating above 100 kHz.
The device operates across –55°C to +150°C junction temperature range with 50 A surge rating (8.3 ms half-sine) and 130 A (1.0 ms), enabling robust transient handling in industrial and automotive power stages without derating below 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse voltage before breakdown; defines safe blocking capability in 350–400 V bus applications |
| IF | 2 A - continuous average forward current; supports sustained conduction in compact 2–3 W SMPS outputs |
| VF @ 2A, 25°C | 1.13 V (typ), 1.25 V (max) - directly determines conduction loss and thermal load in high-duty-cycle operation |
| trr | 35 ns (max) - enables efficient switching at frequencies up to ~3 MHz with minimal reverse recovery loss |
| CJ @ 1 MHz, 4 V | 21 pF - limits capacitive coupling and EMI generation in high-dv/dt environments |
| RθJL | 15 °C/W - allows direct thermal path to PCB copper; enables 2 A operation on 5 mm × 5 mm Cu pad without heatsink |
| IR @ 400 V, 25°C | ≤5 µA - ensures minimal standby leakage in battery-backed or energy-sensitive systems |
Pinout & Package
Package: SMAF - surface-mount, molded plastic case with matte tin-plated leads, UL 94V-0 rated, polarity indicated by cathode band, weight ≈ 0.035 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input terminal | Connected to lower-potential side (e.g., switch node or ground return); must handle full 2 A RMS and 130 A surge |
| Cathode | Forward current output / reverse-blocking terminal | Connected to higher-potential rail (e.g., output capacitor positive); marked by visible band; carries full reverse voltage stress |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in IPC Class 2 environments |
| Moisture sensitivity level 1 (J-STD-020) | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead and yield risk |
| RoHS and halogen-free (IEC 61249-2-21) | Meets global environmental compliance requirements for consumer, industrial, and automotive end equipment |
| Low 1.13 V VF at 2 A / 25°C | Reduces conduction loss by ~18% vs. comparable 400 V rectifiers with VF > 1.3 V, improving efficiency in 12–24 V output rails |
Applications
| DC–DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated flyback or forward converters delivering 5–24 V at ≤2 A. IC Role / Device Role / Timing Role: Unidirectional power diode providing low-loss freewheeling path during MOSFET off-time. Use Value: 1.13 V VF minimizes I²R loss; 35 ns trr prevents cross-conduction losses when paired with 500 kHz–1 MHz controllers. | Use Scenario: Output stage in single-phase H-bridge inverters for motor drives or UPS systems with 300–400 V DC bus. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during PWM dead-time intervals. Use Value: 400 V VRRM safely blocks bus transients; 21 pF CJ limits dv/dt-induced false triggering of gate drivers. |
| AC–DC Adapter | Industrial Power Supply |
Use Scenario: Output rectification in compact 12–19 V, 2 A wall adapters using quasi-resonant flyback topology. IC Role / Device Role / Timing Role: Main output rectifier converting transformer secondary AC to regulated DC. Use Value: SMAF footprint enables high-density layout; 15 °C/W RθJL permits thermal management on minimal PCB copper area. | Use Scenario: Auxiliary bias supply rectification in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Input-stage rectifier for isolated 5/12/24 V auxiliary rails powering control ICs and sensors. Use Value: –55°C to +150°C TJ range ensures operation in sealed enclosures; <5 µA IR preserves standby power budget. |
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 | 400 V VRRM, 2 A IF, VF = 1.3 V (max) @ 2 A, trr = 30 ns, SMA package | Slightly faster trr but higher VF increases conduction loss by ~0.17 V at full load | Prefer where reverse recovery speed dominates over thermal budget |
| MBR240 | 40 V VRRM, 2 A IF, Schottky, VF = 0.52 V (max), no trr, DO-214AA package | Not voltage-compatible: limited to ≤40 V systems; zero reverse recovery but unsuitable for 400 V bus | Select only for low-voltage, ultra-low-loss applications with strict EMI constraints |
Compared with STTH2R04 and MBR240, ES2GAF-T delivers optimal balance of 400 V blocking, 1.13 V VF, and 35 ns trr in an industry-standard SMAF package - making it suitable for cost-sensitive, thermally constrained 200–400 V switching power designs where Schottky alternatives fail on voltage rating.
Availability
ES2GAF-T is available at Aetrix Electronics and suitable for DC–DC converters, switching inverters, and industrial power supplies requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for ES2GAF-T 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, automotive, and industrial markets since 1979.
The ES2GAF-T belongs to TSC's ES2x series of super fast rectifiers designed specifically for high-efficiency, high-frequency switching power conversion - emphasizing low VF, controlled trr, and robust thermal performance in compact surface-mount packages.
FAQ
What is the maximum junction temperature rating for ES2GAF-T?
The ES2GAF-T has a maximum junction temperature (TJ) rating of +150°C, with operational range from –55°C to +150°C. This allows reliable use in enclosed industrial power supplies and automotive under-hood auxiliary circuits where ambient temperatures exceed 85°C. The device maintains specified VF and trr performance up to TJ = 125°C per datasheet test conditions.
Does ES2GAF-T have a halogen-free and RoHS-compliant construction?
Yes, ES2GAF-T is both RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound contains no brominated flame retardants or chlorine-based additives, and the matte tin-plated leads meet J-STD-002 solderability standards. These qualifications support compliance in consumer electronics and EU-regulated industrial equipment.
What is the reverse recovery time (trr) specification for ES2GAF-T?
The ES2GAF-T has a maximum reverse recovery time (trr) of 35 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed across temperature and ensures minimal switching loss in hard-switched topologies operating up to 1 MHz. Typical trr is lower, supporting high-frequency DC–DC converter designs.
Is ES2GAF-T suitable for automated SMT assembly?
Yes, ES2GAF-T is designed for automated placement and reflow soldering. It meets moisture sensitivity level 1 per J-STD-020, eliminating bake requirements before assembly. The SMAF package features coplanar leads and precise dimensional tolerances, ensuring high first-pass yield in pick-and-place and reflow processes.
What is the junction-to-lead thermal resistance (RθJL) of ES2GAF-T?
The junction-to-lead thermal resistance (RθJL) of ES2GAF-T is 15 °C/W, measured on a standard 5 mm × 5 mm copper pad PCB. This low value enables efficient heat transfer from the die to the PCB, allowing the ES2GAF-T to sustain 2 A continuous current without external heatsinking in typical industrial power layouts.
ES2GAF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 21pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2GAF-T FAQ
1.How can I place an order for ES2GAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2GAF-T 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 ES2GAF-T reliable?
The price and inventory of ES2GAF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2GAF-T is usually 5 days.
3.What payment methods are accepted for ES2GAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2GAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2GAF-T?
ES2GAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2GAF-T 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 ES2GAF-T?
For technical support, including ES2GAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2GAF-T requirements.
6.How does Aetrix verify that ES2GAF-T is sourced from the original manufacturer or authorized distributors?
All ES2GAF-T 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 ES2GAF-T meets industry standards.
7.What is the process for return or replacement of ES2GAF-T?
All ES2GAF-T units undergo pre-shipment inspection (PSI). If there is an issue with ES2GAF-T, 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 ES2GAF-T part is unused and in its original packaging.
Return procedure for ES2GAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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