mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


 

Overtemperature protection for semiconductors
10 September 2002, Circuit & System Protection

Over-heating of power transistors, diodes, ICs and circuits can be prevented with a new 0603-sized chip from Murata.

Murata's PTC thermistor has a 1,6 x 0,8 mm footprint and is under 1,0 mm high. Nominal resistance value is 470 Ohm, there are seven temperature characteristics with sensing temperatures from 85 to 145°C and maximum voltage is increased from 16 to 32 V d.c.

The low mass, and the fact that there is no coating gives excellent thermal response. As this is a solid-state semiconductor component, resistance to mechanical vibration and impact-shock are also excellent.

Because there are no moving parts, the PRF18 family of PTCs provides a prolonged and noiseless service life, unlike bimetallic devices with the problems associated with contacts opening and closing. PTCs need over 60% less components than zener diodes for the same protection; and installed costs are lower. Terminations are lead-free.

For more information contact Avnet Kopp, 011 809 6100, sales@avnet.co.za, www.avnet.co.za


Credit(s)
Supplied By: Avnet South Africa
Tel: +27 11 319 8600
Fax: +27 11 319 8650
Email: sales@avnet.co.za
www: www.avnet.co.za
  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Qi-compliant wireless charging coils
    28 August 2019, Avnet South Africa, Passive Components
    Vishay has expanded its offering of Qi-compliant wireless charging transmitter and receiver coils with the introduction of 14 new products in industry-standard shield sizes. Consisting of eight single-coil ...
  • LED flicker, and how to prevent it
    28 August 2019, Avnet South Africa, Opto-Electronics
    With the growing popularity of LED lighting, especially now that very cheap LED luminaires are coming to the market, flicker is becoming more of a problem. Flicker, a repetitive switching on and off ...
  • 3 Watt DC-DC converters
    28 August 2019, Avnet South Africa, Power Electronics / Power Management
    Aimtec has introduced three new series of switching regulators – the AMSRB1-78JZ, AMSRL1-78JZ and AMSRL-78JZ – all meeting the EN62368 standard and suitable for IoT (Internet of Things) applications. The ...
  • EMI AC line filters for avionics
    31 July 2019, Conical Technologies, Circuit & System Protection
    Part of the AeroQor range, SynQor’s latest EMI AC line filters bring the company’s technology and manufacturing expertise to the avionics COTS component marketplace. The components’ packaging ensures ...
  • Conductive rubber gaskets
    31 July 2019, Conical Technologies, Circuit & System Protection
    A range of conductive O-profile silicone rubber gaskets is available from Holland Shielding Systems, developed for high-performance shielding up to 18 GHz and used where environmental and EMI screening ...
  • Buck converter with low quiescent current
    31 July 2019, Avnet South Africa, Power Electronics / Power Management
    Texas Instruments introduced an ultra-low-power switching regulator with what it claims is the industry’s lowest operating quiescent current (IQ) at 60 nA. The TPS62840 synchronous step-down converter ...
  • MCUs with industrial communication interfaces
    31 July 2019, Avnet South Africa, DSP, Micros & Memory
    Texas Instruments introduced new communications capabilities on its C2000 microcontrollers (MCUs). C2000 F2838x devices enable designers to use a single chip to implement connectivity, including EtherCAT, ...
  • High-speed fuses to protect critical power electronics
    31 July 2019, Altron Arrow, Circuit & System Protection
    Littelfuse high-speed (semiconductor) fuses protect critical power electronics from over-currents that may cause damage to electronic equipment. The company’s high-speed fuses are reliable, very fast-acting ...
  • A quick guide to multi-standard mesh networking
    31 July 2019, Avnet South Africa, Telecoms, Datacoms, Wireless, IoT
    Recent advances in wireless technology have enabled the use of mesh network topologies in home and building control applications. Low-cost IoT technology is driving the launch of devices such as smart ...
  • Vent panels for increased airflow and EMI protection
    26 June 2019, Actum Electronics, Circuit & System Protection
    Vent panels made by Laird Technologies offer effective ventilation within electronic equipment, while upholding signal integrity of the enclosure. Its MaxAir and ElectroVent solutions consist of layered, ...
  • eSPI-to-LPC bridge
    26 June 2019, Avnet South Africa, Computer/Embedded Technology
    Microchip Technology’s new ECE1200 bridge allows developers to implement the eSPI standard in boards with legacy LPC connectors and peripherals. Product longevity is critical in industrial computing ...
  • Designing certified power solutions for LED lighting
    26 June 2019, Avnet South Africa, Power Electronics / Power Management
    LED lighting has become the product of choice in all types of environments, from domestic to industrial through to specialist areas such as stage lighting. The combination of efficiency in terms of lumens ...

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.