250-04050

Overview

The Parallax Inc. 250-04050 is a ceramic resonator operating at a frequency of 4.0000 MHz, designed for through-hole mounting applications. It features built-in capacitors and offers a tolerance of ±0.2%. The component operates within a temperature range of -20°C to 80°C and measures 8.00mm x 3.00mm (0.315L x 0.118W). This part is currently classified as obsolete.

Feature Summary

• Integrated capacitor design for simplified circuit implementation
• High frequency stability with ±0.2% tolerance
• Through-hole package suitable for standard PCB assembly

Applications

• Microcontroller clock generation circuits
• Embedded system timing references
• Educational robotics kits requiring precise timing

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Availability is limited to existing stock or surplus channels. Verify end-of-life status and lifecycle restrictions before integration into new designs. Sourcing may require secondary distributors. Confirm physical dimensions and pin compatibility carefully when replacing active components in legacy systems.

Selection Notes

Select this part only for maintenance or repair of existing Parallax-based hardware where the original 4 MHz ceramic resonator is required. Due to its obsolete status, it is unsuitable for new product development. Evaluate alternative active resonators or crystal oscillators if long-term supply assurance is necessary for future projects.

Part Context

This ceramic resonator belongs to Parallax Inc.'s passive component lineup, historically used in educational and hobbyist electronics platforms. It serves as a cost-effective timing solution compared to quartz crystals, offering integrated load capacitors to reduce external component count in simple microcontroller applications.

Replacement Considerations

No direct public substitute part numbers are confirmed for this obsolete component. Designers should consult Parallax documentation for recommended modern alternatives or evaluate generic 4 MHz ceramic resonators with matching ±0.2% tolerance and through-hole packaging.