The ECS-180-20-4X is a through-hole quartz crystal in the HC-49USX series, designed for stable frequency generation in electronic circuits. It features a low-profile resistance weld package and is RoHS compliant. The part operates over a temperature range of -10°C to +70°C with a frequency tolerance of ±30 ppm at +25°C and frequency stability of ±50 ppm across the operating range. It supports a load capacitance of 20 pF, has a shunt capacitance of 7 pF, and a maximum drive level of 500 μW. The crystal operates in fundamental mode at 18.000 MHz with a maximum equivalent series resistance of 60 Ω. MSL rating is 1, and the suggested solder profile allows a peak temperature of +260°C for up to 10 seconds with two cycles maximum. The part uses tin/copper matte lead finish.
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.
18MHz ±30ppm Crystal 20pF 40 Ohms HC-49/US
Win Source Part Number: 1053233-ECS-180-20-4
Category: Crystals, Oscillators, Resonators>Crystals
Series: HC-49USX
Type: MHz Crystal
Package: Bulk
Height - Seated (Max): 0.138" (3.50mm)
Standard Package: 200
Frequency: 18 MHz
ESR (Equivalent Series Resistance): 40 Ohms
Frequency Stability: ±50ppm
Frequency Tolerance: ±30ppm
Load Capacitance: 20pF
Operating Mode: Fundamental
Mounting Type: Through Hole
Package / Case: HC-49/US
Temperature Range - Operating: -10°C ~ 70°C
Dimension: 0.447" L x 0.183" W (11.35mm x 4.65mm)
Alternative Parts (Cross-Reference): ECS-180-S-5PX-TR; ECS-180-18-4XEN; ATS19A; ATS18A; ATS18A-E; ECS-196.6-20-4X;
ECCN: EAR99
Fake Threat In the Open Market: 80 pct.
MSL Level: 1 (Unlimited)
HTSUS: 8541.60.0050
Mfr: ECS Inc.
Other Names: ECS180204X,X1105
| ECS Inc. International | DigiKey | Win Source Electronics | |
|---|---|---|---|
| Product Category | Crystals | Crystals | Oscillators |
| Product Number | ECS-180-20-4X | X1105-ND | 1053233-ECS-180-20-4X |
| Product Name | Through Hole Crystals | Crystals | Crystals, Oscillators, Resonators - Crystals |
| Package / Form Factor | Through Hole Crystals | Through Hole; HC-49/US | HC-49/US |
| Features / Standards | RoHS | Lead-Free | |
| Frequency | 18 MHz | 18 MHz | |
| Frequency Stability | 50 ppm | 50 ppm | 50 ppm |
| Load Capacitance | 20 pF | 20 pF |
