A miniature solid state buzzer featuring long life high reliability low current drain no moving contacts no arcing no r.f. noise. It is small but with a clear penetrating sound.Dimensions 23 x 16.5 x 15.5mm deep.Fixing centres 27.5mm x 8BAOverall length 33.5mm.Finished in cream plastic. Two types are available SpecificationsTypeVoltageImpedanceFrequencyOutput atrange30cm6V4 to 9V240Omega400Hz75dB12V9 to 20V480Omega400Hz75dBBuzzers are for DC operation only and approx. 100mm of lead attached is colour coded red positive black negative.
A miniature solid state buzzer featuring long life high reliability low current drain no moving contacts no arcing no r.f. noise. It is small but with a clear penetrating sound.Dimensions 23 x 16.5 x 15.5mm deep.Fixing centres 27.5mm x 8BAOverall length 33.5mm.Finished in cream plastic. Two types are available SpecificationsTypeVoltageImpedanceFrequencyOutput atrange30cm6V4 to 9V240Omega400Hz75dB12V9 to 20V480Omega400Hz75dBBuzzers are for DC operation only and approx. 100mm of lead attached is colour coded red positive black negative.
An extremely loud PCB- mounting piezoelectric buzzer designed to operate over a wide rangeof supply voltages. Ithas a built-in driver circuit and requires only a DC voltage to drive it. Working with a 24Vdc supply voltage this tiny unit can supply sound levels of over 95dB at a 30cm distance. The unit will operate well with 5V TTL voltages drawing only around 2mA. It will therefore make an excellent bell or warning alarm for digital systems. Two 1.5mm dia. holes are required 16mm apart. The case is finished in a cream colour and features a dot to indicate the side with the positive terminal. SpecificationsResonant frequency2700Hz plusmn500HzOperating voltage3 to 24VdcCurrent at 12V DC10mA max.Sound output at 30cm90dB typical 12VdcOperating temperature-10 to 60 CSize excluding pins16mm high x 24mm dia.Length of pins5mm
These ceramic piezo transducer elements generate a range of audible tones and frequencies when energised by 3V peak square wave. They can be driven direct from CMOS ICs with low power consumption. They are supplied unhoused and with wires attached. Provided they are mounted rigidly in the prescribed manner outputs of up to 90dB can be achieved. In addition to a wide range of applications where audible warnings or indications are preferred to visual other uses include toys clocks and watches calculators and electronic games using the transducer in place of a speaker. Because there are no moving parts to wear out these elements are reliable for use in professional commercial and industrial applications. They withstand severe environmental conditions and prove durable in domestic appliances without causing r.f. interference. A range of different sizes are available. SpecificationsPiezo Transducer 27mm1.8kHzResonant frequency1.8kHz plusmn0.5kHzImpedance at resonance800OmegaCapacitance25nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 27mm4.2kHzResonant frequency4.2kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance14nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 35mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance450OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 41mm2.0kHz for speechResonant frequency2.0kHz plusmn0.5kHzFrequency range750Hz to 20kHzImpedance at resonance600OmegaCapacitance40nF plusmn30Maximum input voltage15V p-pOperating temperature-20 C to 70 CPiezo Transducer 50mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CNodal ring diameter34mm
These ceramic piezo transducer elements generate a range of audible tones and frequencies when energised by 3V peak square wave. They can be driven direct from CMOS ICs with low power consumption. They are supplied unhoused and with wires attached. Provided they are mounted rigidly in the prescribed manner outputs of up to 90dB can be achieved. In addition to a wide range of applications where audible warnings or indications are preferred to visual other uses include toys clocks and watches calculators and electronic games using the transducer in place of a speaker. Because there are no moving parts to wear out these elements are reliable for use in professional commercial and industrial applications. They withstand severe environmental conditions and prove durable in domestic appliances without causing r.f. interference. A range of different sizes are available. SpecificationsPiezo Transducer 27mm1.8kHzResonant frequency1.8kHz plusmn0.5kHzImpedance at resonance800OmegaCapacitance25nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 27mm4.2kHzResonant frequency4.2kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance14nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 35mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance450OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 41mm2.0kHz for speechResonant frequency2.0kHz plusmn0.5kHzFrequency range750Hz to 20kHzImpedance at resonance600OmegaCapacitance40nF plusmn30Maximum input voltage15V p-pOperating temperature-20 C to 70 CPiezo Transducer 50mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CNodal ring diameter34mm
These ceramic piezo transducer elements generate a range of audible tones and frequencies when energised by 3V peak square wave. They can be driven direct from CMOS ICs with low power consumption. They are supplied unhoused and with wires attached. Provided they are mounted rigidly in the prescribed manner outputs of up to 90dB can be achieved. In addition to a wide range of applications where audible warnings or indications are preferred to visual other uses include toys clocks and watches calculators and electronic games using the transducer in place of a speaker. Because there are no moving parts to wear out these elements are reliable for use in professional commercial and industrial applications. They withstand severe environmental conditions and prove durable in domestic appliances without causing r.f. interference. A range of different sizes are available. SpecificationsPiezo Transducer 27mm1.8kHzResonant frequency1.8kHz plusmn0.5kHzImpedance at resonance800OmegaCapacitance25nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 27mm4.2kHzResonant frequency4.2kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance14nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 35mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance450OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 41mm2.0kHz for speechResonant frequency2.0kHz plusmn0.5kHzFrequency range750Hz to 20kHzImpedance at resonance600OmegaCapacitance40nF plusmn30Maximum input voltage15V p-pOperating temperature-20 C to 70 CPiezo Transducer 50mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CNodal ring diameter34mm
These ceramic piezo transducer elements generate a range of audible tones and frequencies when energised by 3V peak square wave. They can be driven direct from CMOS ICs with low power consumption. They are supplied unhoused and with wires attached. Provided they are mounted rigidly in the prescribed manner outputs of up to 90dB can be achieved. In addition to a wide range of applications where audible warnings or indications are preferred to visual other uses include toys clocks and watches calculators and electronic games using the transducer in place of a speaker. Because there are no moving parts to wear out these elements are reliable for use in professional commercial and industrial applications. They withstand severe environmental conditions and prove durable in domestic appliances without causing r.f. interference. A range of different sizes are available. SpecificationsPiezo Transducer 27mm1.8kHzResonant frequency1.8kHz plusmn0.5kHzImpedance at resonance800OmegaCapacitance25nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 27mm4.2kHzResonant frequency4.2kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance14nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 35mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance450OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 41mm2.0kHz for speechResonant frequency2.0kHz plusmn0.5kHzFrequency range750Hz to 20kHzImpedance at resonance600OmegaCapacitance40nF plusmn30Maximum input voltage15V p-pOperating temperature-20 C to 70 CPiezo Transducer 50mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CNodal ring diameter34mm
A miniature solid state PCB mounting buzzer having a loud but pleasant75dB tone and operating from a 12Vdc supply. It is only 7mm highwhen mounted on thePCB. It will work with supply voltages ranging from 3 to 24Vdc. Supply polarity is marked on the bottom of the case as an aid to installation. Two 2mm dia. holes are required 18mm apart. The case is finished in a cream colour. SpecificationsResonant frequency3.5kHzOperating voltage3 to 24VdcCurrent consumption at 12V5mASound output at 12V DC75dB at 30cmTemperature range-20 to 70 CDiameter23mmHeight without leads7mmLead length8mm
An extremely loud two-tone piezo-electric siren mounted in a sturdy cream plastic case. The electronics which drive the piezo element and give the siren its characteristic sound are contained within the unit on a PCB and the overall frequency range can be varied by means of a preset on this board. Two links A and B are also present which if bridged with solder determine the mode of operation see table. The board is accessible by removing the bottom mounting plate secured by four screws from the main body.Operating ModesBoth links open Single tone operationLink A bridged Pulsed high toneLink B bridged Two-tone as suppliedBoth links bridged Pulsed low tone SpecificationsVoltage range6 15VdcCurrent drawn 90mA at 12VdcOutput level at 12V110dBLeads V red 0V black150mmDimensions52x42x27.5mmlugs are 68mm tip to tipMounting58mm spacing M3
A high sensitivity ultrasonic transmitter and receiver sold only in pairs for sending and receiving ultrasonic sound through the air either as a continuous wave or pulses. Applications include burglar alarm systems proximity switches liquid level meters anti-collision devices counters for moving objects TV remote control systems etc. SpecificationsT-40R-40TransmitterReceiverSPL91W1m120dB-Sensitivity5mVPA1kHz5mVPA1kHzResonant freq. 40KHz plusmn140KHz plusmn1Max. input20VrmsCapacitance pF plusmn2024002400Overall size 16mm dia x 12mm deep connecting pins protrude a further 9mm pins are 10mm apart.
A piezo electric sounder ideal for use in applications where space is at a premiumowing to its smallsize. SpecificationsResonant frequency4.6kHzElectrostatic capacitance20nFNominal drive voltage3 to 30V ppOutput at 10V pp80dB 30cmSize31mm dia. x 8mm thickFixing centres35mm x 8BAM2
A buzzer with a loud clear penetrating tone for use where direct pcb mounting is not convenient. The buzzer has two 3.5mm clear mounting holes 38mm apart and two wires are provided for making the connection. SpecificationsResonant frequency2kHz plusmn500HzOperating voltage3 to 15VdcCurrent at 12V DC10mASound output at 30cm90dB typical 12VdcSize30mm dia. 22mm high46mm across mounting ears
A loud and compact buzzer which will operate with DC voltages in the range 6 to 12V. In addition to the red positive and black negative supply leads there are three other leads which if connected in certain combinations will determine the sound that the buzzer will produce. If the green and yellow wires are connected together a two-tone siren sound is produced if the green and orange wires are connected together the unit emits a pulsed tone and if all wires are left unconnected the output is a continuous tone. Two lugs with 3mm holes are provided for mounting purposes. SpecificationsSupply voltage range6 to 15VdcCurrent at 12V95mASound outpur at 12V107dB 1mwith 12V supplyOverall frequency2.8kHzOperating temperature-20 C to 70 COverall dimensions39mm dia. X 22mm heightMounting lugs55mm tip to tip 3mm holesLead length power red black150mm approx tone select org grn yel60mm approx
A very piercing two-tone siren housed in a very tough cream plastic housing. It is essentially the same as KU65V except that two piezo elements have been incorporated into the larger case. As a result this unit offers an extremely high sound pressure level 105dB at 1m. Connection to the unit is by two colour-coded leads red V black 0V. Two mounting lugs spaced 97mm apart are moulded into the case which allow the unit to be secured to a surface using M3 size screws. SpecificationsSupply voltage range6 to 15VdcRecommended operating voltage12VdcCurrent consumption at 12V DC85mA max.Sound pressure level at 1m105dB with 12V supplyFrequency2.5 to 2.8kHz Preset provided for adjustmentOperating temperature range-20 C to 70 COverall dimensions84 x 55 x 32mmMounting lugs106mm tip to tip 3mm holesLeadsApprox. 150mm long
These ceramic piezo transducer elements generate a range of audible tones and frequencies when energised by 3V peak square wave. They can be driven direct from CMOS ICs with low power consumption. They are supplied unhoused and with wires attached. Provided they are mounted rigidly in the prescribed manner outputs of up to 90dB can be achieved. In addition to a wide range of applications where audible warnings or indications are preferred to visual other uses include toys clocks and watches calculators and electronic games using the transducer in place of a speaker. Because there are no moving parts to wear out these elements are reliable for use in professional commercial and industrial applications. They withstand severe environmental conditions and prove durable in domestic appliances without causing r.f. interference. A range of different sizes are available. SpecificationsPiezo Transducer 27mm1.8kHzResonant frequency1.8kHz plusmn0.5kHzImpedance at resonance800OmegaCapacitance25nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 27mm4.2kHzResonant frequency4.2kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance14nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 35mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance450OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CPiezo Transducer 41mm2.0kHz for speechResonant frequency2.0kHz plusmn0.5kHzFrequency range750Hz to 20kHzImpedance at resonance600OmegaCapacitance40nF plusmn30Maximum input voltage15V p-pOperating temperature-20 C to 70 CPiezo Transducer 50mm2.8kHzResonant frequency2.8kHz plusmn0.5kHzImpedance at resonance500OmegaCapacitance20nF plusmn30Maximum input voltage30V p-pOperating temperature-20 C to 70 CNodal ring diameter34mm
An extremely loud piezo electric buzzer with integral drive circuit and a very wide operating voltage range. SpecificationsResonant frequency3kHzImpedance1kOmega approx.Voltage range3V to 24VdcOutput at 12V103dB at 1mSize39mm dia. 26mm highFixing centres50mm x slots 5 x 3mmOverall width60mmFor DC operation only. Approx 100mm leads are attached red is positive black negative.
A piezo electric sounder which can supply levels of over 100dB at a distance of 30cm yet is only 4mm high. It can therefore be used wherever space is at an absolute premium. It requires an external driver which should operate on or as near as possible to the buzzers resonant frequency of 5500Hz. This source should present a maximum drive voltage of 30V peak-to-peak to the buzzer. 100mm lead-out wires with tinned ends are provided. Mounting lugs with 2.5mm holes are moulded into the buzzers cream-coloured case. SpecificationsResonant frequency5500Hz plusmn500HzResonant resistance300Omega max.Electrostatic capacitance12000 pF plusmn30Sound output at 30cm103dB max.Height4mmDiameter23mmLength lug tip to tip35mmFixing centres29mm x 8BAM2
A musical buzzer which plays seven traditional American tunes. Two 100mm wires red for positive and black for negative are provided for connection to the power supply. Two additional redwires are provided which when shorted trigger the next tune in thesequence. If the wires are permanently connected the tunes play continuously. If the battery is removed on reconnection the first tune to play is always the first in the sequence.The tunes areYellow rose of TexasDixielandRed river valleyAmerican patrolOh my darling clementineWhen the saints go marching inShe wore a yellow ribbon SpecificationsVoltage range6V to 12VdcCurrent at 9V6mAOutput at 9V85dB at 1mSize32.2mm dia. 13.9mm highFixing centres38mm x slots 3.5 x 4.5mmOverall width44.6mm