TFM-33

Alarms, Buzzers, And Sirens Overview

The TFM-33 is a through-hole piezoelectric buzzer manufactured by East Electronics. It operates at a nominal voltage of 10V with a current draw of 3mA. The device generates an acoustic output of 90dB sound pressure level measured at a distance of 10cm. Its operating frequency is fixed at 3kHz. The component features a diameter of 29.6mm and is designed for passive external driving circuits. It functions within a temperature range of -20°C to +70°C.

Alarms, Buzzers, And Sirens Feature Summary

• Passive operation requiring external driver circuitry
• High acoustic output efficiency at specified voltage
• Compact through-hole mounting form factor

Alarms, Buzzers, And Sirens Applications

• Automatic control equipment signaling
• Communication equipment status indication
• Electronic appliance audio alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix designation, such as TFM-33N, against official datasheets to confirm exact electrical tolerances and mechanical dimensions. Ensure the application circuit provides the required 10V drive signal for optimal performance. Confirm that the PCB layout accommodates the 29.6mm diameter and through-hole pin spacing requirements for secure mechanical attachment.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a passive buzzer with high sound pressure level is required for through-hole assembly. The 3mA current consumption makes it suitable for low-power applications where external drivers are available. Consider the 3kHz frequency for audible alert tones rather than continuous tone generation. Verify compatibility with the system's operating temperature range of -20°C to +70°C.

Alarms, Buzzers, And Sirens Part Context

The TFM-33 belongs to East Electronics' line of piezoelectric buzzers designed for general-purpose audio signaling. These components are characterized by their simple passive operation and robust construction. The series offers various sizes and frequencies to meet different enclosure and acoustic requirements in industrial and consumer electronics.

Alarms, Buzzers, And Sirens Replacement Considerations

Check for direct substitutes like the TFM-45 or TFM-51HA from the same manufacturer, ensuring matching voltage, frequency, and mounting specifications. Verify that alternative parts maintain the same through-hole package and acoustic output levels to ensure functional equivalence in the existing design.

Alarms, Buzzers, And Sirens FAQ

Is the TFM-33 an active or passive buzzer?

The TFM-33 is a passive buzzer that requires an external driver circuit to generate the oscillating signal necessary for sound production.

What is the operating voltage for the TFM-33?

The TFM-33 is designed to operate at a nominal voltage of 10V.