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  1. PROJECTS UNLIMITED  PUI - AT-121 - Audio, PZT. Miniature Piezo Audio Transducers. Package of 10.
    PROJECTS UNLIMITED PUI - AT-121 - Audio, PZT. Miniature Piezo Audio Transducers. Package of 10.
    Special Price $6.98 Regular Price $8.95 As low as $3.98

    PROJECTS UNLIMITED PUI - AT-121 - Audio, Miniature Piezo Audio Transducer.

    PUI Audio, a Projects Unlimited Company, is a leading developer, manufacturer and supplier of quality audio devices and components including indicators, transducers, speakers, microphones and sirens.

    Piezo Ceramic Audio Tranducer, 5kHz, 3-28Vp-p 8mA @ 12VDC 85dBA @ 12vp-p.

    Resonant Frequency: 4500 HZ +/-500 Hz.

    Operating Voltage: 3 - 28 Vp-p

    Rated Current: 13 mA

    Capacitance: 17,000 pF =/-30% 

    Current Consumption at 12VDC (Typical): 8 mA

    Sound Pressure Level (dBA) at 1" or 30cm:  95 at 12Vp-p.

    Temperature Range: Operating -30 C to 85 C, Storage -40 C to 95C

    Case: Enclosed 24mm Diameter, 34mm with feet. (3) 45mm-wire leads.

    Note: Wire Lenghts are 45mm not  120 as listed on print.

    Mount: Flange Mounting (See Attached Diagram)

    Wire: 32 AWG Stranded

    Wire Color Code: Red Positive (+), Black Negative (-), Blue (Feedback Connection)

    Weight: 7.4 grams (0.106) oz

    Case Material: ABS. Black

    Package of 10.

    Alternate: Mouser 490-CPE-121, CPE-121

    Made in Taiwan

     

     

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  2. Unidentified MFG - 3723000-4 - Speakers. 12 Ohm thin. ALNiCo Magnet
    Unidentified MFG - 3723000-4 - Speakers. 12 Ohm thin. ALNiCo Magnet
    Special Price $2.69 Regular Price $4.00 As low as $1.98
    IN STOCK - MORE THAN 100 READY TO SHIP!

    3723000-4 Speakers. 12 Ohm thin, Size: 2" Diameter, ALNiCo Magnet 

    Speakers made with ALNiCo magnets are often raved about as the vintage-certified choice of true tone hounds. The fact that the alloy used to make them is more expensive—thanks to some of the precious metals it includes—than the ferrite used in ceramic magnets also implies a sort of “better than” relationship. ALNiCo speakers are made with magnets containing aluminum, nickel and cobalt. 

    Full Range Speakers.

    12 Ohm Coil

    ALNiCo Magnet

    Size: 2" Diameter (52 mm).

    Made in Japan

    Price for 1 Speaker.

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  3. PROJECTS UNLIMITED - AT-99-13-A - 10mm Speaker for Motorola Flip-Phones. Package of 4.
    PROJECTS UNLIMITED - AT-99-13-A - 10mm Speaker for Motorola Flip-Phones. Package of 4.
    Special Price $2.98 Regular Price $3.95 As low as $1.98
    IN STOCK - MORE THAN 500 READY TO SHIP!

    PROJECTS UNLIMITED - AT-99-13-A - Audio Alarms PM Speaker.

    Not Piezoelectric (PZT) Tiny Coil Inside with Magnet. (Speakerphone)

    Application: Motorola Flip-Phones, PM Speaker.

    Dimensions: Case: 10mm with 1.5" Wire Leads.

    Genuine Motorola - New Old Stock

    Package of 4.

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