14.31818 MHz — NTSC-derived clock for video and timing applications
The ECS-143-18-23A-JGN-TR: The 14.31818 MHz frequency lands exactly on four times the NTSC color-burst carrier — it is the clock crystal of choice in video processing, broadcast equipment, and any design that must synchronize against North American television timing, or derive a clean multiple for USB and communications clock trees. The ECX-64A series specifies ±30ppm frequency stability across the operating temperature band and ±20ppm initial tolerance, so the accumulated error at room temperature stays within ±50ppm total — adequate for UART timing at standard baud rates and for reference clocks in consumer and industrial control applications where a fractional baud-rate error below 0.05% keeps data intact. With an 18pF load capacitance requirement, the crystal is designed to operate with typical microcontroller oscillator circuits that present 18pF Cload; specifying a 20pF or 22pF load crystal in the same BOM slot will read sharp and may cause UART framing errors in designs tight on baud-rate tolerance. ESR is listed at 80 Ohms — the drive level (max mW) is set by this and the load, so check the microcontroller oscillator circuit's configured drive level resistor against the crystal's maximum drive rating on the ECX-64A datasheet; driving the crystal above its rated drive level accelerates aging and can shift frequency.
2-SMD footprint — board layout and reflow integration
The 6.00mm × 3.50mm body with 1.10mm seated height fits the standard half-wave crystal footprint in the ECX-64A package family — the no-lead (SMD no-lead) construction places the ground pads flush with the PCB surface, so the solder joint is entirely under the package rather than extending beyond the edges. The Land Pattern Alliance LGA-style land pattern is specified for this package — pad design governs the paste deposition and reflow solder fillet under the side walls; ECS Inc. application notes for the ECX-64A series include the recommended pad dimensions and paste mask for this specific case style, so the layout engineer should pull the ECX-64A land pattern drawing rather than estimating from the package outline alone. Tape-and-reel packaging with a 6.00mm pitch pocket places this part in the standard crystal feeder lane on high-volume pick-and-place lines; the 2-SMD no-lead case does not require a wettable flank inspection because there is no side-wall termination — confirm your AOI profile is set for Gull Wing vs. no-lead accordingly.
Active production — sourcing posture and BOM planning
The ECX-64A series is a long-running ECS Inc. product family — alternative frequency variants within the same series share the same footprint, so a BOM engineer can hold the layout and source across the frequency range without a spin.