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


 

Piezo speakers
5 June 2002, Passive Components

Murata offers a speaker using the same technology as its piezo buzzer. Dynamic speaker types with their associated limitations can be replaced. In a surface mounting package, with a free-air cavity in the back, it can be mounted on the PCB like any other SMD according to the manufacturer.

The PKLCD1212R in 12 by 12 mm footprint allows packing in tape and reel for fully automatic processing aided by the gold flash electrodes for lead-free reflow soldering (260°C); or they can be attached with conductive adhesive.

By comparison with a magnetic device, current consumption for mobile appliances is reduced by over 95%, there are no magnetic disturbances, and external component requirements are reduced since it can be driven directly by CMOS ICs. Weight is also cut by more than 50% to 0,3 g. Performance remains high and the SPL from a 1 V r.m.s sine wave is 110 ±3 dB at 1 kHz.

This small, lightweight piezo speaker eliminates lead-wires, spring terminals and the other bits and pieces associated with connecting sound receivers to the PCB. These piezo receivers challenge the use of dynamic types, offering easier mounting, lower power consumption and huge space saving, says Murata.

Avnet Kopp

011 444 2333

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:

  • Big is beautiful: The benefits of large capacitors
    28 August 2019, Passive Components
    The capacitor is a prime example of a component where small is not always beautiful, as meeting electrical characteristics and safety demands means that a component small enough to solder directly onto ...
  • 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 ...
  • Rugged PFC capacitors
    28 August 2019, Electrocomp, Passive Components
    TDK’s DeltaCap X Black Premium is a new series of Epcos MKD capacitors for power factor correction (PFC). With rated voltages of between 440 V a.c. and 850 V a.c., the capacitors with an internal delta ...
  • LAN transformers for industrial Ethernet interfaces
    28 August 2019, Würth Elektronik eiSos, Passive Components
    Würth Elektronik eiSos is expanding its LAN transformer range with the WE-LAN AQ, designed for the elevated requirements in the industrial sector. It can be used in applications requiring up to 1000Base-T ...
  • 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 ...
  • Power inductors for LED headlights
    28 August 2019, Electrocomp, Passive Components
    TDK has expanded its lineup of metal core power inductors with the new SPM-VT series that is designed especially for the high thermal and current demands of automotive LED headlights. These wire-wound ...
  • Ferrite magnetic design tool
    26 June 2019, Electrocomp, Passive Components
    The MDT software from TDK allows application-related parameters to be calculated for all available Epcos ferrite cores and/or materials. It provides access to digitalised material data including their ...
  • 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, ...
  • Shielded power inductors
    31 July 2019, RF Design, Passive Components
    High-temperature power inductors from Coilcraft are available with inductance values from 22 to 47 µH, current ratings up to 5,5 A, and low direct current resistance (DCR). The inductors in the XAL7050 ...
  • 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 ...

 
 
         
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.