HCM49S Quartz Crystal | HC-49 SMD Type | Surface Mount
SMD HC-49SMD
FEATURE
The HCM49S is a resistance welded, surface-mount quartz crystal housed in an HC-49/SMD ceramic-metal package. Internally repalced by FCX-9M. It supports a wide range of standard frequencies from 3.2 MHz to 64 MHz, providing a cost-effective and reliable timing solution. With high stability and compatibility for automated production, HCM49S is suitable for high-volume consumer and IoT applications.
Product Description
HCM49S Surface Mount Quartz Crystal (HC-49 SMD Type)
Key Features
- Package: Resistance welded HC-49/SMD
- Frequency range: 3.2 MHz to 64 MHz
- Frequency tolerance: ±10 ppm (@25°C ±3°C)
- Stability:
- ±50 ppm @ -40°C ~ +85°C
- ±80 ppm @ -40°C ~ +105°C
- Load capacitance: 6, 10, 18 pF or specified
- Drive level: 100 μW typical, 500 μW max
- Low ESR:
- ≤120Ω @ 3.2–5.999 MHz
- ≤90Ω @ 6–7.999 MHz
- ≤40Ω @ 8–15.999 MHz
- ≤30Ω @ 16–40 MHz
- ≤100Ω @ >40 MHz
- Aging: ±3 ppm/year (1st year)
- RoHS & REACH compliant, Pb-free
Recommended Applications
- Bluetooth-enabled devices
- WLAN modules
- IoT and smart sensor applications
- MPU and embedded control systems
Electrical Characteristics
Package Dimension
Design Recommendations
To ensure optimal performance, place the crystal close to the IC and use a 0.1μF decoupling capacitor across Vdd and GND. Ensure matching load capacitance per oscillator design. Maintain appropriate grounding and signal isolation to reduce noise interference and maintain frequency stability.
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©Fuji Crystal (Hong Kong) Electronics Co., Ltd. All Rights Reserved.
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