CPT-147-85T

Alarms, Buzzers, And Sirens Overview

The CPT-147-85T is a through-hole piezoelectric buzzer manufactured by Same Sky. It operates at a nominal voltage of 10 VDC with a current consumption of 7 mA. The device produces an acoustic output of 85 dB when measured at a distance of 10 cm under the rated voltage. The operating frequency is specified at 4 kHz. It features external drive capability and utilizes PC pin termination for printed circuit board mounting.

Alarms, Buzzers, And Sirens Feature Summary

• Piezoelectric transduction mechanism for audible signaling
• External driver compatibility without internal oscillator
• Through-hole mounting via PC pins

Alarms, Buzzers, And Sirens Applications

• Electronic equipment status indication
• Alarm systems requiring external drive signals
• Consumer appliance audio feedback

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix designation to ensure correct acoustic and electrical characteristics, as variations may exist within the product family. Confirm that the target application supports external driving circuits, as this component lacks an integrated oscillator. Check RoHS compliance documentation for regulatory requirements in the destination market.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a high-volume, cost-effective audible indicator is required for applications driven by microcontrollers or logic gates. Ensure the PCB layout accommodates the through-hole pitch and that the enclosure allows for adequate sound projection. Verify that the 10 VDC supply rail matches the system voltage to achieve the specified 85 dB output level.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the CPT series of piezoelectric buzzers from Same Sky, formerly CUI Devices. The series offers various acoustic outputs and drive configurations. The CPT-147-85T specifically denotes a standard through-hole package with defined 10 VDC performance metrics, distinguishing it from low-voltage or internally oscillated variants.

Alarms, Buzzers, And Sirens Replacement Considerations

Direct substitutes must match the 10 VDC rating, 4 kHz frequency, and 85 dB acoustic output. Verify physical dimensions (14 x 14 x 7 mm) and terminal configuration for PCB compatibility. Cross-reference with other manufacturers' through-hole piezo buzzers having identical pinouts and electrical specifications.

Alarms, Buzzers, And Sirens FAQ

Does the CPT-147-85T have an internal oscillator?

No, this model requires an external drive signal to produce sound.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.