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HomeProductsIntegrated Circuits (ICs)Specialized ICsESDA14V2LY(EL1Y)
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ESDA14V2LY(EL1Y) - STMicroelectronics

Manufacturer Part Number
ESDA14V2LY(EL1Y)
Manufacturer
STMicroelectronics
Allelco Part Number
32D-ESDA14V2LY(EL1Y)
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
13,680 pcs available, New & Original
Parts Description
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Data sheet
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Category
Integrated Circuits (ICs) > Specialized ICs
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ESDA14V2LY(EL1Y) Tech Specifications
STMicroelectronics - ESDA14V2LY(EL1Y) technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - ESDA14V2LY(EL1Y)

Product Attribute Attribute Value
Part Number ESDA14V2LY(EL1Y)
Package -
Description -
Stock Condition Get 13680 pcs available quantity at Allelco
Payment PayPal / TT / Credit Card / Western Union
Allelco Certifications ESD / ISO 9001 / ISO 13485 / ISO 28000
Product Attribute Attribute Value
Manufacturer STMicroelectronics
RoHs Status -
Warranty 100% Perfect Functions
Transport port Hong Kong
Shipping by DHL / FedEx / UPS / TNT / SF Express
RFQ Email info@allelco.com

Frequently Asked Questions(FAQ)

How does the ESDA14V2LY(EL1Y) compare to other TVS diodes in terms of clamping voltage during transient events, and what design considerations should be made for a 12V automotive CAN bus interface?
The ESDA14V2LY(EL1Y) exhibits a peak pulse power rating of 600W with a clamping voltage typically around 23.3V at 10/1000µs pulses, making it suitable for protecting 12V systems such as automotive CAN buses. When compared to higher-power alternatives like 1500W devices, it offers lower capacitance (typically <1.5pF), which is critical for high-speed differential signaling where signal integrity must be preserved. Designers must ensure that the maximum clamping voltage remains below the absolute maximum rating of the protected IC, especially during surge conditions like ISO 7637-2 pulses.
What are the key differences between the ESDA14V2LY(EL1Y) and the ESDA14V2LU(EL1U) in terms of package type and PCB layout implications for space-constrained automotive applications?
The ESDA14V2LY(EL1Y) uses an SOT-23 package, while the ESDA14V2LU(EL1U) uses an SOD-323 (SC-79) package. Both provide similar electrical performance, but the smaller SOD-323 form factor allows for higher component density on PCBs. However, the SOT-23 may offer slightly better thermal resistance due to its larger footprint. For automotive-grade designs requiring AEC-Q101 qualification and minimal parasitic inductance, the choice depends on routing constraints and soldering process capabilities.
Can the ESDA14V2LY(EL1Y) be used to protect USB Type-C ports operating at 5V with data rates up to 10Gbps, and what limitations should engineers consider regarding signal integrity?
Yes, the ESDA14V2LY(EL1Y) can be used for basic ESD protection in USB 2.0 applications, but its capacitance (typically <1.5pF) is marginal for full-featured USB Type-C at 10Gbps. At these speeds, even low capacitance can introduce insertion loss and impedance mismatches. Engineers should verify eye diagram compliance and consider alternative solutions with lower capacitance (<0.5pF) specifically designed for high-speed interfaces, unless the application prioritizes cost over bandwidth.
What is the breakdown voltage of the ESDA14V2LY(EL1Y), and how does it influence selection when protecting a 3.3V microcontroller input from electrostatic discharge?
The ESDA14V2LY(EL1Y) has a typical breakdown voltage of 14V, with a minimum guaranteed value of 10.5V. This ensures that under normal operating conditions—such as a 3.3V microcontroller input—the device remains non-conductive. Only during an ESD event exceeding 10.5V will it begin conducting to divert energy. This characteristic allows safe protection without interfering with low-voltage logic levels, provided the working voltage is well below the breakdown threshold.
How does the response time of the ESDA14V2LY(EL1Y) affect its effectiveness against fast transients like IEC 61000-4-2 contact discharges?
The ESDA14V2LY(EL1Y) responds in sub-nanosecond timescales, typically <1ns, which is sufficient to clamp IEC 61000-4-2 ESD pulses (rise time ~0.7–1ns). This rapid response prevents voltage overshoots beyond the semiconductor’s tolerance. However, the actual protection level depends not only on speed but also on the series impedance of the protection path. Engineers must ensure PCB traces and vias do not add significant inductance that could delay current flow and reduce effectiveness.
Is the ESDA14V2LY(EL1Y) suitable for bidirectional protection on a single-ended signal line, and what configuration should be used?
No, the ESDA14V2LY(EL1Y) is unidirectional, designed primarily for negative ESD events. For bidirectional protection—such as on a digital I/O pin exposed to both positive and negative transients—a dual-diode configuration or a bidirectional TVS array must be used. In such cases, placing two ESDA14V2LY devices back-to-back or selecting a part like the ESDA14V2LU(EL1U) if available in bidirectional form ensures comprehensive coverage per IEC standards.
What is the maximum continuous working voltage for the ESDA14V2LY(EL1Y), and why is this parameter important when integrating it into a 12V industrial control system?
The ESDA14V2LY(EL1Y) supports a maximum continuous working voltage of 14V DC. While this exceeds the 12V nominal rail, it does not imply operation at that level. Instead, it defines the upper limit before leakage current increases significantly or reliability degrades. Operating near this limit in a noisy environment risks false triggering or long-term degradation. Therefore, designers should allow a margin, ideally keeping the steady-state voltage below 10V to ensure stable performance and longevity.
How does the ESDA14V2LY(EL1Y) perform under repeated ESD stress, and what derating practices should be followed for mission-critical systems?
The ESDA14V2LY(EL1Y) is rated for multiple ESD strikes per IEC 61000-4-2 (typically ≥1000 cycles), but cumulative damage over time can degrade performance. For safety-critical or long-life applications, it's advisable to derate by applying no more than 500 strikes during testing and avoiding exposure to extreme conditions. Additionally, monitoring leakage current after deployment helps assess remaining robustness, especially in harsh environments where humidity or temperature cycling may accelerate aging.

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Evaluation: 10 Articles

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    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

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    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

  • Logi***b_Chris
    Sep 8, 2026

    Purchased for a Cyclone III development project. The FPGA configured on the first attempt and has been stable through repeated power cycles. No problems with the I/O we are using.

  • Circ***FixerTom
    Sep 2, 2026

    Used this rectifier in a high-current power supply repair. Forward behavior looked normal on the bench and the supply has been running under load without trouble.

  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
    Aug 20, 2026

    one of my hobbies is skydiving. and when i'm skydiving this works great.

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STMicroelectronics

ESDA14V2LY(EL1Y)

STMicroelectronics
32D-ESDA14V2LY(EL1Y)

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