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SMDA15C.TBT

Bidirectional 4-ch TVS array, 15V VRWM, 30V clamp, 300W, SO-8

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Manufacturer Part：

SMDA15C.TBT

Package：

8-SOIC (5.0 x 4.0 x 1.5mm)

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Description

Product Overview

The SMDA15C.TBT from Semtech is a bidirectional TVS diode array designed to protect four I/O lines from ESD, lightning, and transient voltage events. It features 15V working voltage, 300W peak pulse power, 30V clamping voltage, and IEC 61000-4-2 Level 4 compliance in an SO-8 surface-mount package.

Key Specifications

Manufacturer Semtech
Working Voltage (VRWM) 15V
Breakdown Voltage (Min) 16.7V
Clamping Voltage (Max) 30V
Peak Pulse Power 300W (8/20us)
Peak Pulse Current 10A (8/20us)
Number of Channels 4 (bidirectional)
Leakage Current 1uA max
Junction Capacitance 75pF @ 1MHz
Package 8-SOIC (5.0 x 4.0 x 1.5mm)
Operating Temperature -55C to +125C

Features

  • IEC 61000-4-2 ESD protection: +-15kV air, +-8kV contact
  • IEC 61000-4-4 EFT protection: 40A (5/50ns)
  • IEC 61000-4-5 lightning: 12A (8/20us)
  • Bidirectional protection for four I/O lines
  • Low leakage current: 1uA max
  • Low operating and clamping voltages
  • Solid-state silicon avalanche technology

Applications

  • Data and I/O line protection
  • Microprocessor-based equipment
  • Notebooks, desktops, and servers
  • LAN/WAN equipment
  • Serial and parallel ports

The Semtech SMDA15C.TBT is a bidirectional TVS diode array from the SMDAxxC series, designed to protect sensitive electronics from damage or latch-up due to ESD, lightning, and other voltage-induced transient events. Each device protects four data or I/O lines with working voltages of 15V. The device features 300W peak pulse power dissipation, 30V maximum clamping voltage, and 75pF junction capacitance per channel. It meets IEC 61000-4-2 Level 4 ESD requirements, providing +-15kV air discharge and +-8kV contact discharge protection. The compact SO-8 package allows protection of up to four independent lines in minimal board space.

The SMDA15C.TBT operates as a transient voltage suppression array with four key mechanisms: 1) Normal Operation: When line voltages are below 15V, the TVS diodes present high impedance with only 1uA leakage, not affecting signal integrity. 2) ESD Clamping: During an ESD strike exceeding the breakdown voltage (16.7V min), the silicon avalanche diodes rapidly conduct, clamping the voltage to 30V maximum and diverting energy away from protected ICs. 3) Bidirectional Protection: Each channel provides symmetrical clamping for both positive and negative transients, suitable for AC signal lines. 4) Multi-Line Protection: The four-channel configuration protects up to four data lines simultaneously, with isolation between channels preventing cross-talk.

Pin Name Type Function
1 I/O 1 I/O Protected channel 1
2 I/O 2 I/O Protected channel 2
3 GND Ground Ground connection
4 I/O 3 I/O Protected channel 3
5 I/O 3 I/O Protected channel 3 (common)
6 GND Ground Ground connection
7 I/O 4 I/O Protected channel 4
8 I/O 1 I/O Protected channel 1 (common)
  • RS-232 and RS-422 serial port ESD protection
  • USB data line transient suppression
  • Microprocessor I/O port protection in industrial systems
  • LAN/WAN equipment port protection
Manufacturer Part Number Package Notes
Semtech SMDA12C.TBT SO-8 12V version, same series
Semtech SMDA05C.TBT SO-8 5V version, same series
ST USB6B1 SO-8 4-line TVS, 5V
onsemi NUP4202MR6 Micro8 4-ch ESD protection
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Quality Assurance

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.

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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