POC-4.000

Resonators Overview

The POC-4.000 is a ceramic resonator manufactured by Raltron Electronics, designed for through-hole mounting applications. It operates at a nominal frequency of 4 MHz and features an integrated capacitor with a capacitance value of 30 pF. The component exhibits a series impedance of 30 Ohms and maintains a frequency tolerance of ±0.3%. It is engineered to function reliably within an operating temperature range of -20°C to +80°C. The device utilizes a radial package with a three-lead configuration and a pitch of 2.50 mm, standing at a height of 8.00 mm.

Resonators Feature Summary

• Integrates built-in capacitors to simplify circuit design
• Utilizes ceramic material for stable resonance performance
• Supports through-hole mounting for robust mechanical attachment

Resonators Applications

• Microprocessor clock circuits
• General-purpose oscillator designs
• Embedded system timing references

Resonators Procurement Notes

Verify the specific suffix codes against official Raltron documentation to ensure compatibility with required tolerance and packaging specifications. Confirm that the radial lead pitch matches the target PCB layout dimensions. Cross-reference the operating temperature range with environmental requirements to guarantee reliable performance under intended thermal conditions.

Resonators Selection Notes

Select this component when a cost-effective alternative to quartz crystals is required for moderate stability applications. The integrated capacitor reduces external component count. Ensure the 30 Ohm impedance aligns with the driving circuit capabilities. Verify that the ±0.3% tolerance meets the system's timing accuracy requirements.

Resonators Part Context

This part belongs to the POC series of ceramic resonators from Raltron Electronics. These components are positioned as economical solutions for frequency generation in consumer electronics and industrial controls where extreme precision is not critical. They serve as direct replacements for certain crystal configurations in standard oscillator topologies.

Resonators Replacement Considerations

Consult official substitution lists for compatible alternatives. Generic ceramic resonators may differ in impedance or capacitance values. Verify pin compatibility and electrical parameters before swapping with other manufacturers' offerings.