The ECS-40.3-20-1X is a through-hole quartz crystal in the HC-49UX package, designed for stable frequency references in electronic circuits. It operates at 4.032 MHz with a load capacitance of 20 pF, uses the fundamental mode of oscillation, and has a maximum equivalent series resistance of 400 ohms. The crystal supports an operating temperature range of -10 to +70 °C, with frequency stability of ±50 ppm over that range and a frequency tolerance of ±30 ppm at +25 °C. It has a shunt capacitance of 7 pF, a drive level of 1.0 mW, and meets RoHS compliance with MSL 1 rating. Aging is specified at ±5 ppm over the first year at +25 °C. The package dimensions align with the HC-49UX standard, though exact measurements are not listed for this variant.
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.
4.032MHz ±30ppm Crystal 20pF 100 Ohms HC-49/U
| ECS Inc. International | DigiKey | Acme Chip Technology Co., Limited | |
|---|---|---|---|
| Product Category | Crystals | Crystals | Crystals |
| Product Number | ECS-40.3-20-1X | X1005-ND | ECS-40.3-20-1X |
| 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 | 4.03 MHz | 4.03 MHz | |
| Frequency Stability | 50 ppm | 50 ppm |
