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Taiwan Semiconductor Corporation ES2LG
- Part No.:
- ES2LG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ES2LG.pdf
- Description:
- DIODE GEN PURP 400V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,960
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Product details
Overview
ES2LG from Taiwan Semiconductor is a 2A, 400V super fast surface-mount rectifier in DO-214AA (SMB) package, featuring 35ns reverse recovery time, 1.30V max forward voltage at 2A/25°C, and 50A surge capability - used in high-frequency switching mode power supplies for telecom and computing.
For engineers reviewing the ES2LG datasheet, ES2LG pinout, ES2LG application, or ES2LG equivalent, key selection factors include its 400V VRRM rating, thermal resistance (RθJL = 35°C/W), junction temperature range (–55°C to +150°C), and RoHS/halogen-free compliance for industrial-grade power conversion designs.
Technical Context
This single-die silicon rectifier uses glass-passivated junction technology to achieve super-fast recovery (trr ≤ 35ns) with low stored charge, enabling high-efficiency operation in DC-DC converters and freewheeling paths where switching frequencies exceed 100 kHz. Its DO-214AA package supports automated placement and meets J-STD-020 moisture sensitivity level 1.
Thermal performance is characterized on a 16mm × 16mm copper pad PCB: RθJA = 80°C/W (ambient), RθJC = 25°C/W (case), and RθJL = 35°C/W (lead). Reverse leakage remains ≤10 µA at 25°C and ≤350 µA at 125°C under rated VRRM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 2 A - continuous average forward current rating at TA = 75°C on standard PCB |
| trr | 35 ns - reverse recovery time enabling efficient operation above 100 kHz switching |
| VF (max) | 1.30 V @ 2A, 25°C - low conduction loss critical for thermal management in compact SMPS |
| IFSM | 50 A - non-repetitive surge current handling capability during startup or fault conditions |
| TJ (max) | +150°C - maximum junction temperature supporting reliable operation in enclosed industrial environments |
| CJ | 20 pF @ 1 MHz, 4 V - low junction capacitance minimizing switching noise and EMI generation |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicated band; matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of rectification path; requires thermal relief on PCB for heat dissipation |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by band; ties to output rail or ground return; determines polarity in bridge or freewheeling configurations |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable electrical parameters and long-term reliability under humidity and thermal cycling stress |
| Super-fast 35 ns recovery | Reduces switching losses and improves efficiency in high-frequency SMPS (>100 kHz) and PFC stages |
| Moisture sensitivity level 1 | Eliminates need for baking prior to reflow, simplifying SMT assembly for high-volume manufacturing |
| RoHS and halogen-free | Meets IEC 61249-2-21 and global environmental compliance requirements for industrial and telecom equipment |
| UL 94V-0 molding compound | Provides flame-retardant encapsulation essential for safety-critical power supply designs |
Applications
| Server Power Supply | Telecom DC-DC Converter |
|---|---|
Use Scenario: Secondary-side synchronous rectification and output freewheeling in 48V-to-12V isolated DC-DC modules. IC Role / Device Role / Timing Role: Discrete super-fast rectifier replacing Schottky diodes where higher VRRM and lower leakage are required. Use Value: 400V VRRM and 35ns trr enable robust operation under transient overvoltage while maintaining high efficiency at 200–500 kHz switching. | Use Scenario: Input rectification and clamp protection in AC-DC front-end stages of base station power units. IC Role / Device Role / Timing Role: High-reliability discrete rectifier handling line surges and high ambient temperatures up to 85°C. Use Value: 150°C TJ(max), 50A IFSM, and 10 µA IR @ 25°C ensure stable performance across extended operating life in outdoor telecom enclosures. |
| Laptop Adapter | Industrial Motor Drive |
Use Scenario: Output rectification in compact flyback adapters delivering 19V/3.42A with tight thermal constraints. IC Role / Device Role / Timing Role: Surface-mount discrete rectifier mounted directly on primary-side heatsink via SMB footprint. Use Value: RθJL = 35°C/W and 0.110g weight support thermal transfer and lightweight design without compromising surge immunity. | Use Scenario: Freewheeling path across IGBTs in three-phase inverter legs for HVAC and pump drives. IC Role / Device Role / Timing Role: Fast-recovery snubber and energy recirculation diode in 10–20 kHz PWM inverters. Use Value: Low Qrr and 35ns trr minimize turn-off losses and reduce gate driver stress during commutation events. |
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 | Same 2A/400V rating; trr = 30ns (slightly faster); VF = 1.35V (slightly higher); DO-214AA package | Optimized for ultra-low Qrr in high-frequency PFC; tighter VF distribution | Prefer when minimizing reverse recovery charge is critical, especially in interleaved PFC designs |
| SS24HE3/57T | Lower VRRM (40V); Schottky architecture; VF = 0.52V; same DO-214AA footprint | Only suitable for low-voltage (<60V) outputs; no reverse recovery but limited blocking capability | Select only for secondary-side <60V rectification where ultra-low VF outweighs VRRM requirement |
Compared with STTH2R04 and SS24HE3/57T, the ES2LG offers balanced trade-offs: superior VRRM headroom versus Schottkys, better thermal robustness than many 400V competitors, and proven manufacturability in high-volume telecom and server power supplies.
Availability
ES2LG is available at Aetrix Electronics and suitable for server power supplies, telecom DC-DC converters, and industrial motor drives requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for ES2LG 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 and signal conditioning markets since 1979.
The ES2LG belongs to TSC's ES2Lx super-fast rectifier family, engineered specifically for high-efficiency, high-reliability AC-DC and DC-DC conversion in computing, communications, and industrial power systems.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for ES2LG?
The ES2LG 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 C2102). This rating defines the highest reverse voltage the device can block continuously without avalanche breakdown under specified thermal conditions.
What is the forward voltage drop (VF) of ES2LG at rated current?
The ES2LG exhibits a maximum forward voltage drop (VF) of 1.30 V at 2 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss for thermal design calculations.
Is ES2LG compatible with lead-free reflow soldering processes?
Yes, ES2LG is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the device is rated for moisture sensitivity level 1 per J-STD-020 - meaning it can be placed directly into reflow without pre-baking, even after extended dry-pack storage.
What package type does ES2LG use, and what are its mechanical identifiers?
ES2LG uses the DO-214AA (SMB) surface-mount package. Mechanical identifiers include a cathode band marking, UL 94V-0 compliant molding compound, 0.110 g typical weight, and JESD 201 Class 2 whisker-resistant terminations - all verified in the Mechanical Data section of the Taiwan Semiconductor datasheet.
How does ES2LG's reverse recovery time compare to standard fast rectifiers?
ES2LG achieves a reverse recovery time (trr) of ≤35 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions - significantly faster than standard fast rectifiers (typically 100–500 ns). This enables reduced switching losses and improved efficiency in high-frequency power converters operating above 100 kHz.
ES2LG 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):
- 400 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2LG FAQ
1.How can I place an order for ES2LG through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2LG 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 ES2LG reliable?
The price and inventory of ES2LG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2LG is usually 5 days.
3.What payment methods are accepted for ES2LG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2LG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2LG?
ES2LG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2LG 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 ES2LG?
For technical support, including ES2LG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2LG requirements.
6.How does Aetrix verify that ES2LG is sourced from the original manufacturer or authorized distributors?
All ES2LG 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 ES2LG meets industry standards.
7.What is the process for return or replacement of ES2LG?
All ES2LG units undergo pre-shipment inspection (PSI). If there is an issue with ES2LG, 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 ES2LG part is unused and in its original packaging.
Return procedure for ES2LG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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