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Taiwan Semiconductor Corporation ES1CLH
- Part No.:
- ES1CLH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
ES1CLH.pdf
- Description:
- 35NS, 1A, 150V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:3,135
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Product details
Overview
ES1CLH from Taiwan Semiconductor is a 1A, 150V super fast recovery surface-mount rectifier diode in Sub SMA package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability-used in DC-DC converter freewheeling paths and snubber circuits.
For engineers reviewing the ES1CLH datasheet, ES1CLH pinout, ES1CLH application, or ES1CLH equivalent, key selection criteria include peak repetitive reverse voltage (150 V), surge current rating (30 A), junction temperature range (–55°C to +150°C), thermal resistance (RθJL = 35°C/W), and moisture sensitivity level (MSL 1).
Technical Context
This single-die silicon rectifier uses glass-passivated junction technology to achieve fast switching with low forward conduction loss and minimal reverse recovery charge. Its Sub SMA package supports automated placement and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.
The device operates across –55°C to +150°C junction temperature, with 5 µA max reverse leakage at 25°C and 100 µA at 125°C, and exhibits 10 pF junction capacitance at 1 MHz and 4 V reverse bias-enabling stable high-frequency operation in compact power stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or snubber applications |
| IF | 1 A continuous - average forward current rating at TL = 75°C; determines steady-state power dissipation capability |
| IFSM | 30 A - non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload handling |
| trr | 35 ns - reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient high-frequency switching |
| VF | 0.95 V @ 1 A, 25°C - forward voltage drop; directly impacts conduction loss and thermal design in DC-DC stages |
| CJ | 10 pF @ 1 MHz, 4 V - junction capacitance; affects high-frequency noise coupling and EMI filter sizing |
| RθJL | 35 °C/W - junction-to-lead thermal resistance; enables accurate thermal modeling when mounted on PCB copper |
Pinout & Package
Sub SMA package: molded plastic body with matte tin-plated leads, cathode indicated by band, MSL Level 1, weight ≈ 0.019 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or snubber network; polarity marked by band |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements-supports under-hood and lighting module deployment |
| Glass passivated junction | Enhances long-term reliability and humidity resistance versus epoxy-passivated alternatives |
| Low profile Sub SMA | 0.9 mm max height enables ultra-thin power supply designs and compatibility with tight board clearance constraints |
| MSL Level 1 | Unlimited floor life before reflow-eliminates bake requirements and simplifies SMT line logistics |
| Halogen-free (IEC 61249-2-21) | Complies with RoHS and environmental regulations without compromising thermal or electrical performance |
Applications
| DC-DC Converter Freewheeling | Automotive LED Lighting |
|---|---|
Use Scenario: Freewheeling path in synchronous or asynchronous buck converters powering infotainment systems. IC Role / Device Role / Timing Role: Unidirectional current path during low-side switch off-time; clamps inductive kickback. Use Value: 35 ns trr minimizes switching loss and voltage overshoot, while 150 V VRRM accommodates 12 V automotive input transients. | Use Scenario: Constant-current regulation and overvoltage protection in headlamp driver modules. IC Role / Device Role / Timing Role: Snubber diode across MOSFETs or relay coils to suppress inductive spikes during PWM dimming. Use Value: 30 A IFSM withstands load dump surges; AEC-Q101 qualification ensures field reliability in vibration-prone environments. |
| Snubber Network | Industrial Power Supply Input Stage |
Use Scenario: RCD snubber across primary-side MOSFETs in offline SMPS. IC Role / Device Role / Timing Role: Fast recovery path for energy dissipation during turn-off transitions. Use Value: Low CJ (10 pF) reduces capacitive loading on gate drivers; 0.95 V VF limits snubber conduction loss. | Use Scenario: Output rectification in 24 V industrial DC-DC modules with wide ambient temperature range. IC Role / Device Role / Timing Role: Main output rectifier delivering regulated 24 V to PLC I/O modules. Use Value: –55°C to +150°C TJ range supports operation in uncooled enclosures; RθJL = 35°C/W enables direct thermal coupling to heatsink pads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-ES1CA-M3/5BT | Same Sub SMA package, 150 V VRRM, but trr = 50 ns (vs. 35 ns); VF = 0.98 V @ 1 A | Slightly higher recovery loss in >500 kHz converters; otherwise interchangeable in 100–300 kHz designs | Prefer ES1CLH where faster recovery is critical for efficiency or EMI control |
| ON Semiconductor ES1C | Identical VRRM, IF, trr, and package-but not AEC-Q101 qualified; MSL Level 1 retained | Not approved for automotive use; suitable for industrial/commercial power supplies only | Select ES1CLH when automotive qualification or extended temperature validation is required |
Compared with VS-ES1CA-M3/5BT and ES1C, the ES1CLH delivers superior reverse recovery speed and certified automotive reliability-making it the preferred choice for high-efficiency, safety-critical, or thermally constrained applications where both performance and compliance are mandatory.
Availability
ES1CLH is available at Aetrix Electronics and suitable for DC-DC converters, automotive LED lighting systems, and industrial snubber networks requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for ES1CLH 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, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.
The ES1xLH series was designed specifically for high-reliability, surface-mount rectification in space-constrained automotive and industrial power conversion-emphasizing fast recovery, AEC-Q101 compliance, and robust thermal performance in Sub SMA packaging.
FAQ
What is the peak repetitive reverse voltage rating of the ES1CLH?
The ES1CLH has a peak repetitive reverse voltage (VRRM) rating of 150 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103). It defines the maximum reverse-biased voltage the ES1CLH can block continuously without breakdown under normal operating conditions, making it suitable for 12 V automotive systems with load dump transients.
Is the ES1CLH AEC-Q101 qualified?
Yes, the ES1CLH is explicitly AEC-Q101 qualified, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-ensuring suitability for automotive applications such as lighting and body electronics where reliability is mission-critical.
What is the forward voltage drop of the ES1CLH at rated current?
The ES1CLH exhibits a typical forward voltage (VF) of 0.95 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table. This low VF contributes to reduced conduction losses in high-duty-cycle applications like DC-DC output rectification, directly improving system efficiency and easing thermal management for the ES1CLH.
What is the reverse recovery time of the ES1CLH and how is it measured?
The ES1CLH 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 parameter is specified in the Electrical Specifications section and reflects the diode's ability to transition rapidly from conduction to blocking state-critical for minimizing switching losses in high-frequency power converters using the ES1CLH.
What package type does the ES1CLH use and what are its key mechanical attributes?
The ES1CLH uses the Sub SMA package, as confirmed in the MECHANICAL DATA and ORDERING INFORMATION sections. Key attributes include matte tin-plated leads (solderable per J-STD-002), polarity indicated by cathode band, UL 94V-0 molding compound, JESD201 Class 2 whisker resistance, and MSL Level 1-ensuring the ES1CLH supports lead-free reflow without moisture-related defects.
ES1CLH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1CLH FAQ
1.How can I place an order for ES1CLH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1CLH 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 ES1CLH reliable?
The price and inventory of ES1CLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1CLH is usually 5 days.
3.What payment methods are accepted for ES1CLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1CLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1CLH?
ES1CLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1CLH 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 ES1CLH?
For technical support, including ES1CLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1CLH requirements.
6.How does Aetrix verify that ES1CLH is sourced from the original manufacturer or authorized distributors?
All ES1CLH 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 ES1CLH meets industry standards.
7.What is the process for return or replacement of ES1CLH?
All ES1CLH units undergo pre-shipment inspection (PSI). If there is an issue with ES1CLH, 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 ES1CLH part is unused and in its original packaging.
Return procedure for ES1CLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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