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Product Detailed Parameters
- Description：BUZZER MAGNETIC 3V 0.34X0.34 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)：82dB @ 3V, 10cm
- Current - Supply：40mA
- Port Location：Top
- Operating Temperature：-40°C ~ 85°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Surface Mount
- Termination：Solder Pads
- Height - Seated (Max)：0.154" (3.90mm)
- Voltage - Rated：3 V
- Voltage Range：2 ~ 5V
- Size / Dimension：0.335" L x 0.335" W (8.50mm x 8.50mm)
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Overview
The CMI-8536-82-SMT-TR is a surface-mount magnetic audio transducer manufactured by Same Sky. It operates at a rated voltage of 3 V DC with a current consumption of 40 mA. The device produces a sound pressure level of 82 dB at a frequency of 2.7 kHz. Its physical dimensions are 8.5 mm x 8.5 mm x 3.6 mm, utilizing an SMD/SMT termination type for PCB mounting.
Feature Summary
- Integrated driving circuit for simplified interface requirements
- Surface-mount design for automated assembly processes
- Magnetic transduction technology for audible signaling
Applications
- Electronic equipment status indication
- Consumer appliance alert systems
- Industrial control panel signaling
Procurement Notes
Verify the specific operating voltage and current parameters against the official datasheet to ensure compatibility with the target power supply. Confirm that the surface-mount footprint matches the PCB layout design. Check for RoHS compliance documentation if required by regional regulations. Ensure the package type aligns with available pick-and-place equipment capabilities.
Selection Notes
Select this component when a compact, low-profile buzzer with integrated drive electronics is required. The 3 V DC rating suits battery-powered or low-voltage logic circuits. The 82 dB output provides clear audible feedback for general purpose applications. Consider the 3.6 mm height constraint during mechanical enclosure design.
Part Context
This part belongs to the Same Sky family of surface-mount audio indicators. It replaces older through-hole designs with a compact SMD form factor. The integration of the driving circuit reduces external component count compared to passive buzzers. It serves as a direct replacement for similar magnetic buzzers in space-constrained electronic assemblies.
Replacement Considerations
Check pinout compatibility before substituting with other SMD buzzers. Verify that alternative parts support the same 3 V DC operating voltage and 40 mA current draw. Ensure the replacement maintains the 82 dB sound pressure level requirement.
