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Gallery View: Boosting SMD category still key objective in buzzer manufacturing
Global SourcesUpdated on 2023/12/01
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China makers of buzzers carry on with miniaturization while improving features further.
Further miniaturization remains the priority in the production of buzzers in China, although performance enhancements persist.
Suppliers continue to focus on SMD models, which now account for as much as 70 percent of shipments for some. Changzhou Runyuda Electronics Co. Ltd has introduced models as small as 4x4x2mm. Others such as Guangzhou Kailitech Electronics Co. Ltd keep up efforts to raise product reliability as well. The maker's two new patented models support an operating temperature as high as 85 C and operating voltage of up to 80V.
The mainstream selection in China consists of DIP and SMD piezoelectric and electromagnetic types. Electromagnetic variants have 1.5 to 24V rated voltage, and a high sound pressure level and low frequency response. Piezoelectric units have rated voltage of 3 to 220V, and feature high sensitivity and low power dissipation. All meet CE, RoHS and UL requirements.
The main components and materials in buzzer production include oscillators, coils, magnets, diaphragms and cases. Companies purchase them from domestic or foreign sources.
To stay competitive, most makers maintained their prices despite the increase in input and labor costs in 2018. In the months ahead, rates are expected to stabilize.
The products in this gallery have been handpicked by our market analyst for representing current trends in buzzers from China makers.
4,000Hz, 70dB minimum at 10cm
Model DET4002 SMD electromagnetic buzzer from Changzhou Runyuda Electronics Co. Ltd has 4,000Hz frequency and 70dB minimum sound pressure level at a distance of 10cm. Its rated voltage is 3V, maximum rated current 90mA and coil resistance 17±3ohm. The 4x4x2mm unit weighing 0.1g operates in -40 to 85 C.
The supplier requires a minimum order of 2,000 units. Delivery lead time is 15 days.
1,000Hz, 85dB minimum at 10cm
For automotive applications, Changzhou Runyuda Electronics Co. Ltd's model HCM25 electromagnetic buzzer has 5, 6 or 12V rated voltage, 55, 70 or 80mA maximum rated current and 27±4, 36±5, 120±15ohm coil resistance. Its frequency is 1,000Hz and minimum sound pressure level 85dB at 10cm. The 10g unit operates on -40 to 85 C.
The minimum order is 2,000 units for delivery within 15 days.
85dB minimum at 10Vpp square wave
This piezoelectric buzzer from Guangzhou Kailitech Electronics Co. Ltd, KDS-13P-4.0BLB model, has frequency of 4±0.5kHz, minimum sound pressure level of 85dB at 10Vpp square wave and static capacitance of 8nF±30 percent at 100Hz. The maximum allowable voltage is 30Vpp and the rated current 8mA. The unit operates in -20 to 70 C.
The minimum order requirement of 5,000 units is for delivery within 14 days.
90dB minimum at 12VDC, 30cm
Guangzhou Kailitech Electronics Co. Ltd's model KDB-43P-2.9A is a piezoelectric buzzer with 90dB minimum sound pressure level at 12VDC, 30cm and 2.9±0.5kHz resonant frequency. It has 3 to 15VDC allowable input voltage and 30mA maximum current consumption at 12VDC. The operating temperature is -20 to 60 C.
An order should at least be 5,000 units. Delivery takes 14 days.
75dB minimum at 10cm
From Shenzhen Janlita Technology Development Co. Ltd, the model JBS5025X-0340-12R electromagnetic buzzer has 4,000Hz resonant frequency and 75dB minimum sound output at 10cm. The 3V-rated SMD unit measuring 5x2.5x5.5mm has a maximum rated current of 100mA. It operates in -30 to 85 C.
The 1,000-unit minimum order is for delivery within 7 days.
3,000Hz resonant frequency, 12V-rated
Rated at 12V, this piezoelectric buzzer from Shenzhen Janlita Technology Development Co. Ltd, JBP4218Y-1230-T002 model, has 3,000Hz resonant frequency. The 42x18mm unit's operating temperature is -30 to 85 C.
The required minimum order is 1,000 units. Delivery lead time is 7 days.
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