Industry News-FHD-professional manufacturer of acoustic components

How to test the sealing performance of speakers for electronic products?

2021-10-26

Now many consumer electronic products, such as mobile phones, tablets, etc., basically have waterproof function. In order to ensure the overall waterproof performance of consumer electronic products such as mobile phones and tablets, manufacturers usually conduct waterproof tests on accessories that are more likely to be in contact with water to ensure a tight seal. As a kind of sound electronic equipment, speaker is an important part of some consumer electronic products.

How to analyze the SMD buzzer if it fails?

2021-05-14

Changzhou fuhongda electronic SMD buzzer introduces how to analyze the buzzer if it fails? Buzzer (Buzzer) has the advantages of simple structure, compact structure, small size, light weight, low cost, etc. The pronunciation range is generally hundreds of Hz to tens of kHz, in various electronic equipment (air conditioners, washing machines, computers, etc.), the buzzer is represented by "h" and "HA" (old standard "FM", "LB", "JD", etc.) in the circuit mode symbol.

active buzzer and passive buzzer how to distinguish?

2021-04-25

The active buzzer is an integrated electronic sounder, powered by DC voltage. It is widely used as a sound device for electronic toys, alarms, computers, copiers, printers, telephones, automotive electronic equipment, timers and other electronic products. Buzzer is mainly divided into two kinds: piezoelectric buzzer and electromagnetic buzzer. The active buzzer is indicated in the circuit by the letter "H" or "HA.

SMD buzzer manufacturers to explain to you the use and function of the buzzer

2021-04-20

SMD buzzer manufacturers will explain to you the purpose and function of buzzer. Buzzer is a pronunciation device that converts sound signals into sound signals. It is widely used in electronic products in household appliances, banks and other important alarm systems.

A simple way to distinguish between active and passive buzzers

2021-04-13

A simple method to distinguish between active buzzer and passive buzzer: 1. Visual inspection: in the buzzer model, "C" stands for passive and "D" stands for active; Active and passive buzzers are very similar. For example, if the pins of the two buzzers are placed upward, it can be seen that the green circuit board is a passive buzzer, and the circuit board is not sealed with vinyl is an active buzzer. However, this is only a preliminary criterion, not a standard. The minimum size of the piezoelectric passive buzzer currently on the market is 12.5*6. With the continuous development of the market, the quality requirements are getting higher and higher.

Active buzzer: Active buzzer causes of noise

2021-04-01

Active Buzzer Recently, a customer asked us how to deal with a little noise with an active buzzer. Don't worry, our Lord needs to find the source of the problem and prescribe the right remedy so that the problem can be solved quickly.

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