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Taiwan Semiconductor Corporation ES2DFL
- Part No.:
- ES2DFL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
ES2DFL.pdf
- Description:
- 35NS, 2A, 200V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:885
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Product details
Overview
ES2DFL from Taiwan Semiconductor is a 2 A, 200 V super fast surface-mount rectifier in SOD-123FL package, featuring 35 ns reverse recovery time, 0.93 V forward voltage at 2 A/25°C, and 40 A surge current capability. It serves as a freewheeling or output rectifier in DC-DC converters and switching-mode inverters requiring low conduction loss and fast switching.
For engineers reviewing the ES2DFL datasheet, ES2DFL pinout, ES2DFL application, or ES2DFL equivalent, key selection criteria include its 200 V VRRM, 35 ns trr, SOD-123FL thermal performance (RθJA = 116 °C/W), and low IR (≤5 µA @ 25°C), critical for high-efficiency power conversion designs.
Technical Context
The ES2DFL uses a single-die, glass-passivated PN junction optimized for super-fast recovery with minimal stored charge. Its 35 ns trr and 22 pF junction capacitance at 4 V enable operation in high-frequency switching topologies up to several hundred kHz.
Thermal design relies on its SOD-123FL package with matte tin-plated leads and RθJL = 81 °C/W, supporting 2 A continuous current when mounted on a 5 mm × 5 mm copper pad per JESD51-3 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback or boost output stages |
| IF | 2 A - Continuous forward current rating; supports compact PCB layouts without forced air cooling |
| trr | 35 ns - Reverse recovery time; enables efficient operation in 100–500 kHz SMPS designs with reduced switching loss |
| VF @ 2 A, 25°C | 0.93 V - Forward voltage drop; determines conduction loss of ~1.86 W at full load |
| IR @ 25°C | ≤5 µA - Reverse leakage current; ensures minimal standby power loss in battery-backed systems |
| CJ @ 4 V | 22 pF - Junction capacitance; affects high-frequency noise coupling and snubber design requirements |
| RθJA | 116 °C/W - Junction-to-ambient thermal resistance on standard test board; informs heatsinking needs for thermal derating |
Pinout & Package
SOD-123FL surface-mount package with cathode-indicating band; 2-terminal configuration (anode/cathode); matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 1 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter or transformer secondary center-tap) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or filter capacitor positive; withstands 200 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling; eliminates need for conformal coating in industrial environments |
| 35 ns reverse recovery | Reduces switching losses and EMI generation compared to standard fast rectifiers (>75 ns), improving efficiency in high-frequency SMPS |
| Moisture sensitivity level 1 | Allows unlimited floor life before reflow; eliminates baking requirement and simplifies SMT line logistics |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS directives; supports green manufacturing and end-of-life compliance |
| Low IR (≤100 µA @ 125°C) | Maintains low standby dissipation in hot ambient conditions, critical for sealed or fanless power supplies |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12 V–48 V telecom DC-DC modules. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency AC from transformer secondary into regulated DC. Use Value: 0.93 V VF minimizes conduction loss; 35 ns trr prevents cross-conduction during synchronous gate transitions. | Use Scenario: Freewheeling path in half-bridge motor drive inverters for HVAC compressors. IC Role / Device Role / Timing Role: Clamp diode providing low-impedance return path during MOSFET dead-time. Use Value: 40 A IFSM handles peak inductive kick; 200 V VRRM matches 175 V bus designs with margin. |
| SMPS Power Supplies | Industrial Control Systems |
Use Scenario: Output rectification in 65 W laptop adapter with 250 kHz flyback topology. IC Role / Device Role / Timing Role: Main energy transfer diode delivering regulated 19 V/3.4 A output. Use Value: 22 pF CJ limits capacitive coupling noise; 116 °C/W RθJA allows natural convection cooling on 2-layer board. | Use Scenario: Input protection and hold-up rectification in PLC power input stage. IC Role / Device Role / Timing Role: AC input bridge leg or bulk capacitor charging path. Use Value: ≤5 µA IR at 25°C preserves backup capacitor charge; SOD-123FL footprint fits tight I/O module spacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MURS220T3G | VRRM = 200 V, trr = 35 ns, VF = 0.95 V @ 2 A, same SOD-123FL package | Identical voltage/speed class; slightly higher VF increases conduction loss by ~20 mW at 2 A | Drop-in alternative where ON Semi supply chain preference applies; verify moisture sensitivity level (MSL 1 confirmed) |
| Vishay VS-ES2D02-M3/5BT | VRRM = 200 V, trr = 35 ns, VF = 0.92 V @ 2 A, SOD-123FL, MSL 1 | Near-identical electrical specs; tighter VF tolerance (±0.02 V) improves parallel diode matching | Preferred for high-reliability industrial designs requiring tighter parametric consistency across batches |
Compared with MURS220T3G and VS-ES2D02-M3/5BT, the ES2DFL offers identical 200 V/35 ns performance in SOD-123FL but with documented halogen-free compliance and lower typical VF (0.93 V vs. 0.95 V/0.92 V), balancing efficiency and environmental requirements.
Availability
ES2DFL is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial control systems requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.
Supply support for ES2DFL 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 ES2DFL belongs to TSC's ES2xFL super fast rectifier family, engineered for high-frequency switching power supplies where low VF, fast trr, and robust thermal performance in miniature packages are essential.
FAQ
What is the maximum junction temperature rating for the ES2DFL?
The ES2DFL has a maximum junction temperature (TJ) rating of +150°C, validated across its full operating range from –55°C to +150°C. This rating supports reliable operation in enclosed industrial enclosures or high-ambient environments. Derating curves confirm 2 A continuous current is sustainable up to 100°C ambient when mounted per JEDEC 51-3 test board conditions. The ES2DFL must not exceed this limit to maintain specified electrical parameters and long-term reliability.
Does the ES2DFL have a defined polarity marking, and how is it identified?
Yes, the ES2DFL uses a cathode band to indicate polarity - a visible dark band near one end of the SOD-123FL body. This band marks the cathode terminal, which must be connected toward the higher-potential side of the circuit (e.g., output rail). The anode is the unmarked end. This marking complies with industry-standard diode orientation conventions and is verified in TSC's package outline drawings and marking diagram for ES2DFL – ES2JFL Version B2103.
What is the surge current rating of the ES2DFL, and under what test condition is it specified?
The ES2DFL is rated for 40 A non-repetitive surge forward current (IFSM) under an 8.3 ms half-sine wave condition at TA = 25°C. It also supports 100 A for 1.0 ms pulses. These ratings reflect capability to absorb inductive energy spikes during startup or fault events in switching converters. The ES2DFL's 81 °C/W RθJL helps dissipate this transient energy rapidly into the PCB lead frame, preventing thermal runaway during short-duration overloads.
Is the ES2DFL suitable for use in automotive applications?
The ES2DFL is not qualified to AEC-Q101 or automotive-grade reliability standards, and TSC explicitly states these devices are "not designed for use in medical, life-saving, or life-sustaining applications." While its 150°C TJ and robust construction may support under-hood ambient temperatures, system-level qualification (including PPAP, stress testing, and failure analysis) would be required. For automotive designs, engineers should select AEC-Q101-certified alternatives unless used in non-safety-critical auxiliary circuits with full risk acceptance.
How does the junction capacitance of the ES2DFL affect high-frequency circuit design?
The ES2DFL exhibits 22 pF junction capacitance (CJ) at 4.0 V reverse bias and 1 MHz, directly influencing EMI filtering and snubber sizing in high-frequency SMPS. This value contributes to ringing during turn-off and couples switching noise into adjacent traces. Designers must account for it when selecting RC snubbers or layout routing - especially in >300 kHz flyback or LLC resonant converters. Lower-CJ variants like ES2GFL (15 pF) or ES2JFL (9 pF) are available if reduced capacitive coupling is prioritized over voltage rating.
ES2DFL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 22pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2DFL FAQ
1.How can I place an order for ES2DFL through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2DFL 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 ES2DFL reliable?
The price and inventory of ES2DFL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2DFL is usually 5 days.
3.What payment methods are accepted for ES2DFL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2DFL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2DFL?
ES2DFL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2DFL 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 ES2DFL?
For technical support, including ES2DFL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2DFL requirements.
6.How does Aetrix verify that ES2DFL is sourced from the original manufacturer or authorized distributors?
All ES2DFL 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 ES2DFL meets industry standards.
7.What is the process for return or replacement of ES2DFL?
All ES2DFL units undergo pre-shipment inspection (PSI). If there is an issue with ES2DFL, 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 ES2DFL part is unused and in its original packaging.
Return procedure for ES2DFL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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