The ECS-120-20-1X-EM is a through-hole quartz crystal in the HC-49UX series, operating at 12.000 MHz with a load capacitance of 20 pF. It uses an "AT" cut and supports fundamental mode oscillation with a maximum ESR of 25 Ω. The crystal operates within a temperature range of -10 to +70°C, with a frequency stability of ±50 ppm over this range and a frequency tolerance of ±30 ppm at +25°C. Shunt capacitance is 7 pF, and the maximum drive level is 1.0 mW. It features PB-free/RoHS compliance, MSL 1 rating, and an aging rate of ±5 ppm over the first year at +25°C. The package dimensions follow the HC-49UX standard.
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.
12MHz ±30ppm Crystal 20pF 30 Ohms HC-49/U
| ECS Inc. International | DigiKey | Acme Chip Technology Co., Limited | |
|---|---|---|---|
| Product Category | Crystals | Crystals | Crystals |
| Product Number | ECS-120-20-1X-EM | XC2839-ND | ECS-120-20-1X-EM |
| 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 | 12 MHz | 12 MHz | |
| Frequency Stability | 50 ppm | 50 ppm |
