CM309E40000000ABJT
Citizen Finedevice Co Ltd
CM309E40000000ABJT
Citizen Finedevice Co Ltd
CRYSTAL 40.0000MHZ 18PF SMD
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Product details
The CM309E40000000ABJT from Citizen Finedevice Co Ltd establishes new standards for Crystals in consumer electronics, combining ultra-low power consumption with exceptional timing accuracy. Optimized for wearable devices and smart home applications, it delivers the perfect balance of performance and energy efficiency.This MHz Crystal oscillator incorporates power-saving technologies that extend battery life in always-connected IoT devices without sacrificing timing precision.Supporting 40 MHz operation, it provides the clock foundation for Bluetooth Low Energy, Zigbee, and other wireless protocols.With ±30ppm stability, the device maintains accurate timekeeping in fitness trackers and smartwatches across varying environmental conditions.The ±30ppm tolerance ensures reliable wireless synchronization in dense IoT deployments with numerous connected devices.Configured with 18pF load capacitance, it optimizes power consumption during sleep modes while enabling fast wake-up times.The ultra-low 80 Ohms ESR contributes to industry-leading power efficiency in energy-harvesting sensor nodes.Employing 3rd Overtone technology, it achieves the necessary frequency purity for sensitive biometric sensors in health monitoring devices.Rated for -10°C ~ 60°C, the component performs reliably in both indoor smart home devices and outdoor wearable applications.The Surface Mount design enables automated assembly processes while withstanding mechanical stress in portable consumer products.The miniature 4-SOJ, 9.60mm pitch package supports ultra-compact designs required in hearables and augmented reality glasses.With 0.461" L x 0.189" W (11.70mm x 4.80mm) dimensions, it fits the most space-constrained PCB layouts in modern wearable electronics.The 0.146" (3.70mm) ultra-slim profile enables integration into the thinnest smartwatch and fitness band designs.
Product Attributes
- Product Status: Obsolete
- Type: MHz Crystal
- Frequency: 40 MHz
- Frequency Stability: ±30ppm
- Frequency Tolerance: ±30ppm
- Load Capacitance: 18pF
- ESR (Equivalent Series Resistance): 80 Ohms
- Operating Mode: 3rd Overtone
- Operating Temperature: -10°C ~ 60°C
- Ratings: -
- Mounting Type: Surface Mount
- Package / Case: 4-SOJ, 9.60mm pitch
- Size / Dimension: 0.461" L x 0.189" W (11.70mm x 4.80mm)
- Height - Seated (Max): 0.146" (3.70mm)
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