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Taiwan Semiconductor Corporation ES1D-T
- Part No.:
- ES1D-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES1D-T.pdf
- Description:
- 35NS, 1A, 200V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:9,927
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Product details
Overview
ES1D-T from Taiwan Semiconductor is a 1A, 200V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 0.95V max forward voltage at 1A/25°C, and 30A peak surge current capability. It serves as a freewheeling or output rectifier in high-frequency DC-DC converters.
For engineers reviewing the ES1D-T datasheet, ES1D-T pinout, ES1D-T application, or ES1D-T equivalent, key selection criteria include repetitive peak reverse voltage (200V), thermal resistance (RθJL = 35°C/W), junction temperature range (–55°C to +150°C), and RoHS/halogen-free compliance for industrial power supply designs.
Technical Context
The ES1D-T employs a single-die, glass-passivated silicon junction optimized for high-efficiency switching-mode power supplies. Its super fast recovery (trr ≤ 35ns) minimizes switching losses during turn-off in 50–500 kHz converters.
Designed for automated SMT assembly, it meets J-STD-020 moisture sensitivity level 1 and JESD201 Class 1A whisker resistance. The cathode-band polarity marking and matte tin-plated leads ensure reliable solderability per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum non-repetitive reverse voltage before breakdown; sets upper limit for DC bus or flyback clamp voltage |
| IF | 1 A continuous - Rated average forward current at TL = 75°C; defines steady-state conduction capability |
| trr | ≤35 ns - Measured at IF = 0.5A, IR = 1.0A, Irr = 0.25A; enables efficient operation up to ~500 kHz |
| VF | ≤0.95 V @ 1A, 25°C - Forward drop directly impacts conduction loss and thermal rise in compact layouts |
| RθJL | 35 °C/W - Junction-to-lead thermal resistance; supports direct PCB copper pour heat sinking without heatsink |
| IFSM | 30 A @ 8.3ms - Peak surge rating for startup inrush or transient overload handling |
| Junction Temp | –55°C to +150°C - Full operational range enables use in automotive under-hood or industrial ambient environments |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, single-anode/single-cathode configuration. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck sync rectifier or transformer secondary center-tap) |
| Cathode (Lead 2, banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or positive bus; blocks reverse voltage up to 200V during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance without hermetic sealing |
| Super fast recovery (≤35 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency SMPS |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; compatible with standard SMT lines |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| UL 94V-0 molding compound | Ensures flame-retardant performance in enclosed power modules and safety-critical enclosures |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12V–48V input buck-derived DC-DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side MOSFET off-time. Use Value: 0.95V VF and 35ns trr reduce conduction and switching losses, improving efficiency by ≥0.8% at 200kHz compared to standard FRDs. | Use Scenario: Output rectification in 3kW solar micro-inverter DC-link stage operating at 100kHz PWM frequency. IC Role / Device Role / Timing Role: Unidirectional current steering device converting high-frequency AC from H-bridge into stable DC bus. Use Value: 30A IFSM withstands grid-synchronization surges; RθJL = 35°C/W allows direct mounting on copper-clad heatsink pads. |
| Freewheeling Diodes | Industrial Motor Drives |
Use Scenario: Inductive load snubbing in 24V/48V BLDC gate driver auxiliary supplies with L-C filter networks. IC Role / Device Role / Timing Role: Clamp diode providing rapid current recirculation path when MOSFET turns off. Use Value: 35ns trr limits voltage overshoot across switching FETs, reducing need for RC snubbers and EMI filtering. | Use Scenario: Brake chopper circuit in servo amplifier front-end, dissipating regenerated energy during deceleration. IC Role / Device Role / Timing Role: Fast-recovery path enabling controlled energy dump into braking resistor. Use Value: 200V VRRM and –55°C to +150°C TJ support operation in sealed, thermally constrained motor control enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02UF | VRRM = 200V, trr = 30ns, VF = 0.92V @ 1A - slightly faster but same voltage rating | Optimized for ultra-low Qrr; preferred in >300kHz resonant topologies | Select STTH1R02UF if trr < 30ns is required and lead-time permits |
| MBR120ESF | Schottky structure, VF = 0.52V @ 1A, but VRRM = 20V only - not voltage-compatible | Lower conduction loss but unsuitable for 200V reverse blocking; limited to low-voltage OR-ing | Use MBR120ESF only in sub-30V systems where ultra-low VF outweighs voltage limitation |
Compared with STTH1R02UF and MBR120ESF, the ES1D-T delivers balanced 200V blocking, 35ns recovery, and robust surge capability in a cost-effective SMA package-making it optimal for mainstream 100–250kHz industrial DC-DC and inverter outputs where voltage rating and thermal ruggedness are primary constraints.
Availability
ES1D-T is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and freewheeling applications requiring stable component supply, consistent parametric performance, and full RoHS/halogen-free compliance.
Supply support for ES1D-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 industrial, computing, and consumer markets since 1979.
The ES1D-T belongs to TSC's ES1x-T super fast rectifier family, engineered specifically for high-frequency switching power conversion where low recovery charge, tight VF distribution, and SMT manufacturability are critical.
FAQ
What is the maximum junction temperature rating for ES1D-T?
The ES1D-T has a maximum junction temperature (TJ) of +150°C and a minimum of –55°C. This wide range allows reliable operation in demanding environments such as enclosed industrial power supplies or under-hood automotive auxiliary systems. Derating curves in the ES1D-T datasheet specify that average forward current must be reduced above 75°C lead temperature to maintain safe thermal margins.
Is ES1D-T pin-compatible with other parts in the ES1x-T series?
No - all ES1x-T parts (ES1D-T through ES1J-T) share identical DO-214AC (SMA) package and pinout, but differ only in VRRM rating (200V to 600V). The ES1D-T uses marking code "ES1D" and is electrically interchangeable only with other 200V-rated variants in footprint-constrained designs where voltage margin is sufficient.
Does ES1D-T meet lead-free and RoHS requirements?
Yes, the ES1D-T is fully RoHS compliant and halogen-free per IEC 61249-2-21. Its matte tin-plated leads are solderable per J-STD-002, and the molding compound meets UL 94V-0 flammability standards. No exemptions are applied; the ES1D-T is qualified for lead-free reflow profiles up to 260°C peak.
What is the typical junction capacitance of ES1D-T and how does it affect high-frequency design?
The ES1D-T exhibits a typical junction capacitance (CJ) of 16 pF at 1 MHz and 4.0V reverse bias. This low CJ minimizes capacitive coupling noise and reduces switching node ringing in high-frequency converters, supporting clean gate drive isolation and predictable EMI behavior in 200–500 kHz topologies.
Can ES1D-T replace a standard FR107 rectifier in an existing design?
The ES1D-T can replace FR107 only if the circuit operates below 200V reverse stress and benefits from faster recovery. FR107 has trr ≈ 500ns and VF ≈ 1.1V - the ES1D-T's 35ns trr and 0.95V VF improve efficiency and reduce EMI, but its lower VRRM (200V vs. FR107's 1000V) makes it unsafe in higher-voltage applications unless redesigned.
ES1D-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 16pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1D-T FAQ
1.How can I place an order for ES1D-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1D-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 ES1D-T reliable?
The price and inventory of ES1D-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1D-T is usually 5 days.
3.What payment methods are accepted for ES1D-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1D-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1D-T?
ES1D-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1D-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 ES1D-T?
For technical support, including ES1D-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1D-T requirements.
6.How does Aetrix verify that ES1D-T is sourced from the original manufacturer or authorized distributors?
All ES1D-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 ES1D-T meets industry standards.
7.What is the process for return or replacement of ES1D-T?
All ES1D-T units undergo pre-shipment inspection (PSI). If there is an issue with ES1D-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 ES1D-T part is unused and in its original packaging.
Return procedure for ES1D-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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