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Diodes Incorporated ES2GA_HF
- Part No.:
- ES2GA_HF
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES2GA_HF.pdf
- Description:
- SUPERFAST RECOVERY RECTIFIER SMA
- Quantity:
- Payment:
- Shipping:
Inventory:8,945
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Product details
Overview
ES2GA_HF from Diodes Incorporated is a surface-mount super fast rectifier diode rated for 400 V repetitive peak reverse voltage and 2.0 A average forward current, featuring 25 ns reverse recovery time, 1.25 V forward voltage at 2 A/25°C, and low 5.0 µA reverse leakage at 25°C. It is used in high-frequency switching power supplies, AC-DC adapters, and DC-DC converters where efficiency and compact footprint are critical.
For engineers reviewing the ES2GA_HF datasheet, ES2GA_HF pinout, ES2GA_HF application, or ES2GA_HF equivalent, key selection criteria include verified reverse recovery time (trr ≤ 25 ns), thermal resistance (RthJL = 25 °C/W), cathode-band polarity marking, SMA package compatibility with IPC-7351 standards, and RoHS-compliant "Green" molding compound compliance per J-STD-020C Level 1 moisture sensitivity.
Technical Context
This device operates as a unidirectional silicon PN junction rectifier optimized for high-frequency operation. Its super-fast recovery (trr ≤ 25 ns at IF = 0.5 A, IR = 1.0 A) minimizes switching losses in SMPS topologies, while the glass-passivated chip ensures stable performance under thermal cycling and humidity stress.
The SMA package enables direct PCB mounting with low thermal impedance to copper pads. With RthJL = 25 °C/W and TJ operating range of –55°C to +150°C, it supports reliable conduction in thermally constrained environments without forced air cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum repetitive reverse voltage the diode blocks without breakdown during normal operation |
| I(AV) | 2.0 A - Average forward current sustainable at TL = 110°C with adequate PCB copper area |
| trr | 25 ns - Measured reverse recovery time enabling >1 MHz switching in flyback and forward converters |
| VF | 1.25 V @ 2 A, 25°C - Forward voltage drop directly impacting conduction loss and thermal rise at full load |
| IR | 5.0 µA @ 400 V, 25°C - Low leakage preserves efficiency in standby and light-load conditions |
| RthJL | 25 °C/W - Thermal resistance from junction to lead, defining temperature rise per watt dissipated |
Pinout & Package
SMA (DO-214AC) surface-mount package: molded "Green" plastic case (UL 94V-0), cathode indicated by band, weight ≈ 0.07 g, moisture sensitivity Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node return) |
| Cathode | Forward current exit point | Marked with band; connects to output filter capacitor positive or regulated rail |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip | Enhances long-term reliability under humidity and thermal stress; eliminates need for conformal coating in industrial environments |
| Super fast switching (trr ≤ 25 ns) | Reduces switching loss and EMI generation in 100–500 kHz SMPS designs |
| Low VF (1.25 V @ 2 A) | Lowers conduction loss by ~15% vs. standard FR series diodes, improving full-load efficiency |
| "Green" package (Halogen/Antimony-free) | Meets IEC 61249-2-21 and JEDEC JS709C requirements for eco-compliant manufacturing |
| Moisture sensitivity Level 1 | Enables standard SMT reflow without baking; compatible with automated assembly lines |
Applications
| AC-DC Power Adapters | DC-DC Converter Outputs |
|---|---|
Use Scenario: Secondary-side rectification in 12–24 W wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Unidirectional current steering element converting high-frequency transformer output to DC. Use Value: 25 ns trr and 1.25 V VF enable >88% efficiency at 230 VAC input and 5 V/2 A output. | Use Scenario: Output rectification in isolated 48 V-to-12 V telecom DC-DC modules. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in non-synchronous flyback or forward converters. Use Value: Low IR (5 µA) maintains regulation accuracy during no-load standby; RthJL = 25 °C/W allows operation at 95°C ambient without derating. |
| LED Driver Secondary Side | Industrial Control Power Supplies |
Use Scenario: Rectifying high-frequency AC from resonant LLC transformer secondaries in constant-current LED drivers. IC Role / Device Role / Timing Role: Fast-recovery rectifier handling 300–600 kHz switching waveforms with minimal tail current. Use Value: 25 ns trr prevents cross-conduction loss and reduces output ripple compared to 50 ns alternatives. | Use Scenario: Input rectification in DIN-rail mounted 24 V/3 A industrial PSUs with wide temperature range (-40°C to +70°C). IC Role / Device Role / Timing Role: Primary-side bridge rectifier component in compact, convection-cooled enclosures. Use Value: –55°C to +150°C operating range and Level 1 moisture rating ensure robustness across factory-floor thermal cycles. |
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 | trr = 35 ns (vs. 25 ns); VF = 1.30 V @ 2 A; same SMA package | Higher switching loss in >300 kHz designs; suitable for lower-frequency (<150 kHz) industrial PSUs | Select when cost sensitivity outweighs 10 ns trr advantage and thermal margin is ample |
| MBR240SFT1G | Schottky structure; VF = 0.52 V @ 2 A but VRRM = 40 V only; not a direct voltage replacement | Only viable in low-voltage (<48 V) DC-DC outputs; unsuitable for 400 V AC-DC inputs | Choose only for <48 V systems requiring ultra-low VF; reject for mains-connected applications |
Compared with STTH2R04 and MBR240SFT1G, ES2GA_HF uniquely balances 400 V blocking, 25 ns speed, and 1.25 V VF in a single SMA package-making it optimal for space-constrained, high-efficiency 20–50 W AC-DC and isolated DC-DC designs where both voltage rating and recovery speed are critical.
Availability
ES2GA_HF is available at Aetrix Electronics and suitable for AC-DC power adapters, industrial control power supplies, and LED driver secondary-side rectification requiring stable component supply and consistent parametric performance across production lots.
Supply support for ES2GA_HF 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
The ES2x series targets high-frequency rectification in compact power conversion systems, emphasizing speed, thermal robustness, and environmental compliance for consumer, industrial, and lighting applications.
FAQ
What is the maximum allowable junction temperature for ES2GA_HF?
The absolute maximum junction temperature is +150°C, with continuous operation supported from –55°C to +150°C. Derating begins above 110°C case temperature; full 2.0 A average current is rated at TL = 110°C with sufficient PCB copper thermal relief.
Is ES2GA_HF suitable for use in synchronous rectification circuits?
No-ES2GA_HF is a passive super fast rectifier diode, not a MOSFET-based synchronous rectifier. It lacks gate control and cannot be actively switched. It serves only as a freewheeling or output rectifier in non-synchronous topologies like flyback or forward converters.
Does ES2GA_HF require pre-baking before reflow soldering?
No-its moisture sensitivity level is Level 1 per J-STD-020C, meaning it may be stored indefinitely at ≤30°C/60% RH and placed directly into standard lead-free reflow profiles (e.g., JEDEC J-STD-020) without baking or dry-pack requirements.
How does the "Green" package affect thermal performance?
The halogen- and antimony-free molding compound has identical thermal conductivity to standard epoxy (≈0.7 W/m·K) and does not degrade RthJL (25 °C/W). UL 94V-0 flammability rating is maintained without compromising thermal path integrity to the PCB pad.
ES2GA_HF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- 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):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2GA_HF FAQ
1.How can I place an order for ES2GA_HF through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2GA_HF 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 ES2GA_HF reliable?
The price and inventory of ES2GA_HF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2GA_HF is usually 5 days.
3.What payment methods are accepted for ES2GA_HF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2GA_HF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2GA_HF?
ES2GA_HF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2GA_HF 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 ES2GA_HF?
For technical support, including ES2GA_HF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2GA_HF requirements.
6.How does Aetrix verify that ES2GA_HF is sourced from the original manufacturer or authorized distributors?
All ES2GA_HF 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 ES2GA_HF meets industry standards.
7.What is the process for return or replacement of ES2GA_HF?
All ES2GA_HF units undergo pre-shipment inspection (PSI). If there is an issue with ES2GA_HF, 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 ES2GA_HF part is unused and in its original packaging.
Return procedure for ES2GA_HF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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