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Product Detailed Parameters
- Description：BUZZER MAGNETIC 3V 9.6X9.6 SMD
- Series：CMI
- Mfr：Same Sky (Formerly CUI Devices)
- Package：Tape & Reel (TR),Cut Tape (CT)
- Driver Circuitry：Indicator, Internally Driven
- Input Type：DC
- Frequency：2.7kHz
- Technology：Magnetic
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：75dB @ 3V, 10cm
- Current - Supply：30mA
- Port Location：Top
- Operating Temperature：-20°C ~ 70°C
- Approval Agency：-
- Ratings：Washable
- Ingress Protection：-
- Mounting Type：Surface Mount
- Termination：Solder Pads
- Height - Seated (Max)：0.217" (5.50mm)
- Voltage - Rated：3 V
- Voltage Range：2 ~ 5V
- Size / Dimension：0.378" L x 0.378" W (9.60mm x 9.60mm)
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Overview
The CMI-9653S-SMT-TR is a magnetic buzzer from the Same Sky CMI series, designed for surface-mount assembly. It operates at a nominal voltage of 3 V with a supply current of 30 mA and produces a sound pressure level of 75 dB at 3V measured at 10 cm. The device emits a single tone at a frequency of 2.7 kHz. Its physical dimensions are 9.60 mm in length and width, with a maximum installed height of 5.30 mm. The component features an internally driven indicator circuit and is rated for operation between -20°C and 70°C.
Feature Summary
- Integrates an internal driver circuit for simplified interface requirements
- Utilizes magnetic technology for reliable acoustic output
- Features a top-mounted sound port for direct audio projection
- Supports washable processing capabilities during manufacturing
Applications
- Electronic indicators requiring audible alerts
- Internal drive buzzer implementations in compact devices
- Surface-mount assembly for consumer electronics
- Audio signaling in medical or industrial equipment
Procurement Notes
Verify the specific voltage rating and sound pressure level against the official datasheet to ensure compatibility with the target circuit design. Confirm that the surface-mount footprint matches the PCB layout constraints. Check for RoHS compliance status if required by regional regulations. Ensure the operating temperature range meets the environmental conditions of the final application.
Selection Notes
Select this component when a low-profile, surface-mount buzzer with integrated driving capability is required. The 3 V nominal voltage makes it suitable for battery-powered applications. Consider the 75 dB sound pressure level for environments where moderate volume is sufficient. The 9.6 mm square form factor allows for dense board layouts compared to larger through-hole alternatives.
Part Context
This part belongs to the CMI series of magnetic buzzers manufactured by Same Sky. The series offers various voltage options and mounting styles to accommodate different design needs. The SMT variant specifically targets automated assembly processes, providing a compact solution for modern electronic devices requiring audible feedback without occupying excessive board space.
Replacement Considerations
Check for other parts within the CMI series that share the same 9.6 mm x 9.6 mm footprint but differ in voltage or sound pressure level. Verify mechanical compatibility before substituting with components from other manufacturers.
