FCR4.0MC5

Resonators Overview

The TDK FCR4.0MC5 is a ceramic resonator operating at a nominal frequency of 4 MHz with a tolerance of ±0.5%. It features built-in capacitors, eliminating the need for external load components. The device has an impedance of 20 Ohms and a capacitance of 30 pF. It utilizes a through-hole mounting type and operates within a temperature range of -40°C to +85°C.

Resonators Feature Summary

• Built-in capacitor design simplifies circuit layout
• Small leaded package structure
• Thickness shear mode operation

Resonators Applications

• Microcontroller clock sources
• Simple oscillator circuits
• Low-cost timing applications

Resonators Procurement Notes

This component is officially listed as obsolete and no longer manufactured by TDK. Verify availability through authorized distributors or secondary market suppliers. Ensure that any sourced units are genuine and match the original specifications before integration into production designs.

Resonators Selection Notes

Select this part only if legacy compatibility is required due to its obsolete status. Consider modern alternatives from the same manufacturer family if new designs are permitted. Verify pinout and physical dimensions against existing PCB footprints to ensure mechanical fit during replacement.

Resonators Part Context

The FCR series consists of small leaded ceramic resonators using thickness shear mode elements. This specific model belongs to a line designed for cost-sensitive applications requiring stable frequency generation without complex external tuning components.

Resonators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the part is obsolete, engineers must evaluate equivalent ceramic resonators with matching frequency, impedance, and package dimensions from other manufacturers.