Piezoelectric Sounders (External Drive SMD Type) Circuit/Notice

510

Ω 20kΩ

20k

Ω 510Ω

1k

Ω

+V

1k

Ω

0.01μF

0.01μF

+V

1k

Ω

1k

Ω

120k

Ω

1M

Ω

Input

0.001μF

The following are examples of externally driven circuits.

(1) Unstable multi-vibrator using Tr.

(2) Circuits using inverters or NAND gates.

(1)

(2)

c Circuit

c Notice (Soldering and Mounting)

Washing of the component is prohibited because it is

not sealed.

1. The component may be damaged if mechanical stress

exceeding specifications is applied.

2. Take care to protect the operating circuit from surge

voltage resulting from excessive force, falling, shock or

temperature change.

3. If DC voltage is applied to the component, silver migration

may occur. Please strictly avoid subjecting the

component to DC voltage for long periods.

4. The resistor should be used as shown in Fig. A.

A suitable resistance value should be chosen, preferably

1k

Ω to 2kΩ. Instead of this measure, a diode may also be

applied as shown in Fig. B.

5. Avoid excessive pulling of the lead wire because the wire

may break or the soldering point come off.

IC

Fig. A

IC

Fig. B

R

c Notice (Handling)

P37E.pdf

Feb.1,2012

22

• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.

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