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ESDA5V3L

Dual unidirectional Transil ESD protection array in SOT-23-3L package, designed for data and transmission line protection.

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Manufacturer Part：

ESDA5V3L

Package：

SOT-23

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Description

Part Number: ESDA5V3L
Manufacturer: STMicroelectronics (ST)
Device Type: Dual Unidirectional TVS (Transil? Array) for ESD Protection
Package: SOT-23-3 (Surface Mount)
Marking Code: EL53

Part Number Decoding
ESDA: ST ESD protection diode series
5V3: 5.3V minimum breakdown voltage
L: SOT-23 package, low-profile

Key Specifications
Reverse Standoff Voltage (Vrwm): 3V
Breakdown Voltage (Vbr): 5.3V (min) ~ 5.9V (max) @ 1mA
Clamping Voltage (Vc): 8V @ 1A; 14V @ 25A (8/20 μs)
Peak Pulse Power (Ppp): 300W (8/20 μs)
Peak Pulse Current (Ipp): 15A (2.5 μs)
Reverse Leakage Current (Ir): 2 μA max @ 3V
Junction Capacitance (Cj): 220pF typ @ 0V, 1MHz
ESD Protection Level: ±16kV (air), ±9kV (contact), per IEC 61000-4-2
Operating Temperature: -40°C to +125°C (TJ)

Main Features
Dual-channel unidirectional TVS array, protects two I/O lines simultaneously
Low capacitance (220pF), minimizes signal distortion for high-speed interfaces
High ESD immunity, meets industrial ESD protection standards
Low leakage current, reduces power consumption in standby mode
SOT-23 compact package, ideal for space-constrained PCB designs
RoHS-compliant, lead-free and environmentally friendly

Typical Applications
High-speed data line ESD protection: USB, HDMI, Ethernet, RS-232
Consumer electronics: smartphones, tablets, laptops, printers
Industrial control and communication equipment
Automotive electronics (non-safety circuits)
PCB ambient ESD protection for sensitive ICs

Packaging Details
Package: SOT-23-3
Packaging Type: Tape & Reel (3,000 pcs/reel), Cut Tape
Application: Surface-mount technology (SMT) mass production

The ESDA5V3L is a dual unidirectional Transil ESD protection array from STMicroelectronics in SOT-23-3L package, featuring 5.3V breakdown voltage, 300W peak pulse power, low leakage current (<20uA), and 25kV ESD protection level. It clamps voltage just above the logic level supply for positive transients and to a diode drop below ground for negative transients.

Working Principle(Within 200 Words)

Pin Number Pin Name Description
1 Line 1 / Common Protected line 1; can also serve as common when used as bidirectional suppressor
2 Line 2 / Ground Protected line 2; ground reference when used in unidirectional mode
3 VCC Positive supply rail connection for clamping reference
Application Description
RS-232 Port Protection ESD protection for RS-232 I/O ports requiring up to 25kV immunity
Communication Lines Transient voltage protection for data and transmission lines
Computer Peripherals ESD protection for keyboard, mouse and other interface ports
Printer Interfaces Surge protection for parallel and serial printer ports
Consumer Electronics General-purpose ESD protection in high-density board designs
Industrial Equipment Protection against electrostatic discharge in sensitive equipment
Model Manufacturer Package Key Difference
ESDA5V3LY STMicroelectronics SOT-23-3L Automotive AEC-Q101 qualified version
PESD5V0S1BA,215 Nexperia SOT-23 Single ESD protection diode, 5V standoff
TISP5145M3 Bourns SOT-23-3 Similar dual ESD protection, different clamping voltage
PRTR5V0U2X,215 Nexperia SOT-143B Dual bidirectional ESD protection with rail-to-rail clamping
TPD2E001DRLR Texas Instruments SOT-5 2-channel ESD protection, 5.5V working voltage
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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