The HC-49UX is a through-hole "AT" cut quartz crystal designed for stable frequency reference in electronic circuits. It is housed in a classic cylindrical package with dimensions consistent with standard HC-49/U mounting. The device operates over a frequency range of 1.800 to 100.000 MHz, with a load capacitance specified at part number and a drive level of 1.0 mW. Frequency tolerance is ±30 ppm at +25°C, and stability is ±50 ppm across the operating temperature range of -10 to +70°C. Shunt capacitance is 7 pF. The crystal is RoHS compliant, meets MSL 1 moisture sensitivity, and exhibits an aging rate of ±5 ppm in the first year at +25°C. Oscillation modes are fundamental for frequencies up to 30.000 MHz and third overtone above. ESR values range from 20 Ω to 750 Ω depending on frequency and mode. The storage temperature range is -55 to +125°C.
Despite the rise in popularity of surface mount technology (SMT) in passive components, through hole packaging has remained an industry staple for eight decades for a reason. The simplicity and efficacy of this technology, along with its ability to be incorporated into a vast array of designs, make it an excellent choice for many different applications.
Crystals with through hole packing are ideal for larger components that will undergo a significant amount of mechanical stress, high voltage, and/or high power. This is because through hole soldering results in a stronger bond between the passive components and the circuit board. Example applications include transformers, connectors, semiconductors and electrolytic capacitors.
Other advantages to using through hole-mounted components include the compact design to decrease the component’s footprint on the circuit board, exceptional shock and vibration resistance, low frequencies and options for industrial temperature ranges and excellent aging and component longevity and durability.
19.6608MHz ±30ppm Crystal Series 20 Ohms HC-49/U
| ECS Inc. International | DigiKey | Acme Chip Technology Co., Limited | |
|---|---|---|---|
| Product Category | Crystals | Crystals | Crystals |
| Product Number | ECS-196.6-S-1X | X1023-ND | ECS-196.6-S-1X |
| Product Name | Through Hole Crystals | Crystals | Crystals |
| Package / Form Factor | Through Hole Crystals | Through Hole; HC-49/U | Through Hole |
| Features / Standards | RoHS | Lead-Free | |
| Frequency | 19.66 MHz | 19.66 MHz |
