CUI DEVICES | MODEL: CPE-121 | DESCRIPTION: PIEZO BUZZER TRANSDUCER

date 08/05/2022 | page 2 of 3

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MECHANICAL DRAWING

units: mm

tolerance: ±0.5 mm

PERFORMANCE CURVES

2.9

1.9

29.0

34.0

120.0 5.0

red

blue

black

1.9

1.75

5.0

UL1571 LF 32AWG

24.0

5.0 1.0

P: Voltage vs. Sound Pressure Level

I: Voltage vs. Current Consumption

DRIVING CIRCUIT

WIRE CONNECTIONS

Color

Function

Red

+terminal (M)

Black

-terminal (G)

Blue

feedback (F)

Notes:

1. The current consumption and the sound pressure level are measured by using the recommended driving circuit shown above.

Additional Resources: Product Page | 3D Model