# CMT-1603-SMT-TR (Component) ## Description Buzzers Transducer, Externally Driven Piezo 3 V 3mA 4kHz 70dB @ 3V, 10cm Surface Mount Solder Pads The CMT-1603-SMT-TR is a compact, surface-mount piezoelectric buzzer transducer designed for applications requiring an externally driven audible indicator. Featuring a low-profile 16 × 16 mm package, it delivers reliable single-tone sound output with low current consumption, making it suitable for portable electronics, industrial equipment, consumer devices, medical instruments, and embedded systems where PCB space is limited. Key Features: Piezoelectric buzzer transducer (externally driven) Surface-mount (SMT) package with solder pad terminals Compact 16 × 16 × 2.8 mm low-profile design Low current consumption (~3 mA typical) Resonant frequency of 4 kHz Sound pressure level of 70 dB @ 3 V, 10 cm Rated voltage: 3 V Maximum input voltage: 25 Vp-p Single-tone acoustic output Operating temperature range: −30°C to +70°C Tape-and-reel (TR) packaging for automated assembly RoHS compliant #Hashtags: #PiezoBuzzer #AudioTransducer #SurfaceMount #SMTBuzzer #ExternallyDriven #LowProfile #LowCurrent #EmbeddedSystems #IndustrialElectronics #ConsumerElectronics #MedicalDevices #RoHS #commonpartslibrary #audio #buzzer ## Component Details - **Owner:** adrian95 - **Created:** 6/26/2026 - **Last Updated:** 6/26/2026 - **Visibility:** Public - **Manufacturer Name:** Same Sky (Formerly CUI Devices) - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/261549ac840dec455e0649edb7ba55937475eaf1d3c9568fb8ab5759ccd83ee7.pdf - **License:** https://creativecommons.org/licenses/by/4.0/ - **Manufacturer Part Number:** CMT-1603-SMT-TR - **Part Type:** Buzzer - **Used in:** 6 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/cmt-1603-smt-tr_1/cui-devices.html?utm_currency=USD&region=nac) | $1.0425 | 0 | - **Part Type:** Electromechanical Components - **MPN:** CMT-1603-SMT-TR - **Mount Type:** Surface Mount - **Package / Case Code:** TO - **Pin Count:** 2 - **Compliance:** Rohs ## Pins | Pin | Name | Type | |-----|------|------| | 1 | + | | | 2 | - | | --- *Generated from [https://www.flux.ai/adrian95/cmt-1603-smt-tr~y2o](https://www.flux.ai/adrian95/cmt-1603-smt-tr~y2o)*