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Taiwan Semiconductor Corporation ES1CL
- Part No.:
- ES1CL
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
ES1CL.pdf
- Description:
- 35NS, 1A, 150V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:8,531
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Product details
Overview
ES1CL from Taiwan Semiconductor is a 1A, 150V super fast surface-mount rectifier diode in Sub SMA package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A, and 30 A peak surge current - used in DC-DC converters and switching-mode power supplies for high-efficiency freewheeling.
For engineers reviewing the ES1CL datasheet, ES1CL pinout, ES1CL application, or ES1CL equivalent, key selection criteria include repetitive peak reverse voltage (150 V), thermal resistance (RθJL = 35 °C/W), junction temperature range (–55 to +150 °C), and moisture sensitivity level (MSL 1).
Technical Context
The ES1CL is a single-die, glass-passivated silicon rectifier optimized for high-frequency switching applications. Its super-fast recovery (trr ≤ 35 ns) and low forward voltage minimize conduction and switching losses in compact power stages.
Designed for automated SMT assembly, it uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band on the Sub SMA case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage without breakdown |
| IF | 1 A continuous - average forward current rating at TA = 75 °C with PCB heatsinking |
| trr | 35 ns - enables operation up to ~3 MHz switching frequencies with minimal tail current loss |
| VF | 0.95 V @ 1 A, 25 °C - reduces conduction loss in low-voltage output rectification |
| RθJL | 35 °C/W - allows direct thermal path from junction to PCB pad, supporting compact layout |
| IFSM | 30 A - withstands short-duration inrush or fault currents in SMPS startup |
| CJ | 10 pF @ 4 V - low capacitance minimizes switching noise and EMI in high-dv/dt environments |
Pinout & Package
Package: Sub SMA - low-profile, surface-mount plastic package with cathode band marking; dimensions per Taiwan Semiconductor outline drawing; MSL Level 1, RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry | Connected to lower-potential side (e.g., switch node in buck converter) |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail; blocks reverse voltage up to 150 V |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humidity and thermal cycling stress |
| Sub SMA package | Enables automated pick-and-place and supports >1.5 W power dissipation with proper PCB copper area |
| Low profile (max 2.2 mm height) | Allows use in space-constrained power modules and ultra-thin adapters |
| Moisture sensitivity level 1 | Eliminates need for baking prior to reflow, reducing manufacturing overhead |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance requirements |
Applications
| DC-DC Converters | Switching Inverters |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated 12 V → 5 V/3.3 V flyback converters. IC Role / Device Role / Timing Role: Freewheeling rectifier conducting during MOSFET off-time; handles 1 A average current with <35 ns turn-off. Use Value: Low VF (0.95 V) reduces conduction loss by ~15% vs. standard FR107, improving efficiency at light-to-moderate loads. | Use Scenario: Output stage of 24 V input solar micro-inverter with high-frequency transformer isolation. IC Role / Device Role / Timing Role: Fast-recovery output rectifier handling 20 kHz–100 kHz PWM waveforms with minimal reverse recovery charge. Use Value: 35 ns trr limits reverse recovery energy loss, enabling higher switching frequency without excessive heating. |
| Freewheeling Diodes | AC-DC Auxiliary Supplies |
Use Scenario: Inductive load snubbing in automotive body control modules driving solenoids and relays. IC Role / Device Role / Timing Role: Clamp diode across inductive coil; absorbs stored energy during MOSFET turn-off. Use Value: 30 A IFSM safely handles transient energy spikes; RθJL = 35 °C/W ensures stable operation under pulsed conditions. | Use Scenario: Bias supply rectification in industrial PLC power management ICs requiring auxiliary 5 V/100 mA rails. IC Role / Device Role / Timing Role: Input rectifier for small offline flyback or buck-derived auxiliary converter. Use Value: Sub SMA footprint fits tight board areas; MSL 1 simplifies high-volume SMT line integration without dry-pack handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR115 | VRRM = 150 V, trr = 35 ns, VF = 0.93 V @ 1 A - nearly identical electrical specs; Sub SMA package | Same footprint and thermal performance; qualified for automotive AEC-Q101 | Preferred where automotive qualification is required; otherwise functionally interchangeable |
| Vishay VS-ES1D | VRRM = 200 V, trr = 35 ns, VF = 0.95 V @ 1 A - higher VRRM, same speed and forward drop | Supports designs needing margin above 150 V reverse stress (e.g., 120 VAC-derived rails) | Select when system-level reverse voltage derating requires ≥200 V rating; not drop-in due to different marking and minor thermal resistance variation |
Compared with MUR115 and VS-ES1D, the ES1CL offers optimal cost-performance balance for non-automotive 150 V-rated SMPS, with identical speed and lower procurement lead time in standard commercial volumes.
Availability
ES1CL 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 traceability.
Supply support for ES1CL 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 industrial, computing, and consumer markets since 1979.
The ES1xL series targets high-efficiency, high-frequency power conversion - designed specifically for space-constrained, thermally demanding SMT applications where fast recovery, low VF, and robust MSL 1 handling are critical.
FAQ
What is the maximum junction temperature rating for ES1CL?
The ES1CL has a maximum junction temperature (TJ) of +150 °C and a minimum of –55 °C. This wide operating range supports use in industrial environments with elevated ambient temperatures. Derating curves in the official Taiwan Semiconductor datasheet show that at TA = 75 °C, the device maintains its full 1 A average forward current rating when mounted on a standard 1-inch² copper pad. The ES1CL's RθJL of 35 °C/W enables predictable thermal design without forced air cooling.
Does ES1CL have a specified reverse recovery time, and how is it measured?
Yes, the ES1CL has a maximum reverse recovery time (trr) of 35 ns, tested under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the Electrical Specifications table of the Taiwan Semiconductor ES1AL–ES1JL datasheet (Version L2103). The test circuit and waveform definitions are illustrated in Figure 6. Because trr directly impacts switching loss and EMI, this parameter makes the ES1CL suitable for 100 kHz–1 MHz power topologies where standard rectifiers would overheat.
Is ES1CL compatible with lead-free reflow soldering processes?
Yes, the ES1CL is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the Sub SMA molding compound is rated UL 94V-0. With Moisture Sensitivity Level 1 per J-STD-020, the ES1CL can be placed directly into reflow ovens without pre-baking - eliminating process steps and reducing risk of popcorn cracking. This makes the ES1CL ideal for high-throughput SMT lines producing consumer and industrial power supplies.
What does the marking code "ECL" indicate on the ES1CL device body?
The marking code "ECL" on the ES1CL body identifies it as the 150 V variant within the ES1xL family. Per the Taiwan Semiconductor ordering matrix, "E" denotes the ES1 series, "C" specifies VRRM = 150 V, and "L" indicates the Sub SMA package. This marking is laser-etched on the cathode-end surface and aligns with JEDEC-standard polarity identification - the band adjacent to "ECL" marks the cathode terminal. No additional date or factory codes are required for basic identification of the ES1CL.
How does ES1CL's junction capacitance affect high-frequency performance?
The ES1CL exhibits a typical junction capacitance (CJ) of 10 pF at 4.0 V reverse bias and 1 MHz, per the datasheet's Electrical Specifications table. This low CJ minimizes displacement current during rapid voltage transitions, reducing EMI generation and gate-drive loading in synchronous rectifier circuits. In practice, this enables clean switching waveforms in 500 kHz–1 MHz DC-DC converters - unlike higher-CJ general-purpose rectifiers that induce ringing and require snubbers. The ES1CL's CJ remains stable across its rated voltage range, supporting consistent timing behavior.
ES1CL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 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 @ 150 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1CL FAQ
1.How can I place an order for ES1CL through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1CL 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 ES1CL reliable?
The price and inventory of ES1CL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1CL is usually 5 days.
3.What payment methods are accepted for ES1CL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1CL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1CL?
ES1CL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1CL 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 ES1CL?
For technical support, including ES1CL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1CL requirements.
6.How does Aetrix verify that ES1CL is sourced from the original manufacturer or authorized distributors?
All ES1CL 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 ES1CL meets industry standards.
7.What is the process for return or replacement of ES1CL?
All ES1CL units undergo pre-shipment inspection (PSI). If there is an issue with ES1CL, 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 ES1CL part is unused and in its original packaging.
Return procedure for ES1CL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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