The HC-49UX is a through-hole 'AT' cut quartz crystal designed for stable oscillation in electronic circuits. It has a frequency range of 1.800 to 100.000 MHz, with a shunt capacitance of 7 pF and a maximum drive level of 1.0 mW. The operating temperature range is -10 to +70°C, with frequency stability of ±50 ppm over this range and a frequency tolerance of ±30 ppm at +25°C. The crystal uses a load capacitance specified in the part number, with common values of 10 or 20 pF. Aging is ±5 ppm maximum in the first year at +25°C. The package is a standard HC-49UX through-hole case, with RoHS compliance and MSL 1 moisture sensitivity rating. Frequencies from 1.8432 MHz to 48.000 MHz are developed and supported. 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.
| ECS Inc. International | DigiKey | |
|---|---|---|
| Product Category | Crystals | Crystals |
| Product Number | ECS-50-20-1X | X989-ND |
| Product Name | Through Hole Crystals | Crystals |
| Package / Form Factor | Through Hole Crystals | Through Hole; HC-49/U |
| Features / Standards | RoHS | Lead-Free |
| Frequency | 5 MHz | |
| Frequency Stability | 50 ppm | 50 ppm |
