ECS-SR1-4.19-B-TR

Resonators Overview

The ECS-SR1-4.19-B-TR is a ceramic resonator manufactured by ECS Inc. International, designed for surface mount applications in the 3-SMD, Non-Standard package. It operates at a nominal frequency of 4.19 MHz with a frequency tolerance of ±0.5% and stability of ±0.3%. The component features a built-in capacitor with a capacitance value of 30 pF and an impedance of 40 Ohms. It supports an operating temperature range from -20°C to +80°C and is compliant with lead-free standards.

Resonators Feature Summary

• Integrated built-in capacitor eliminates external components
• Surface mount design for automated assembly
• Lead-free construction for environmental compliance

Resonators Applications

• Microcontroller clock sources
• Communication module timing circuits
• Consumer electronics control boards

Resonators Procurement Notes

Verify the specific suffix 'B' against current manufacturer documentation, as product change notices may indicate withdrawal schedules or last-time-buy statuses for this variant. Confirm package dimensions match the PCB footprint requirements prior to ordering.

Resonators Selection Notes

Select this component when a precise 4.19 MHz reference is required for surface mount designs. Ensure the 30 pF internal capacitance aligns with the load requirements of the target oscillator circuit. Consider the ±0.5% tolerance for frequency accuracy needs.

Resonators Part Context

This part belongs to the ECS SR1 series of ceramic resonators, which are characterized by their compact SMD form factor and integrated capacitive elements. The series is widely used in cost-sensitive electronic applications requiring stable frequency generation without the complexity of crystal oscillators.

Resonators Replacement Considerations

Direct substitutes include other 4.19 MHz ceramic resonators with identical 3-SMD packaging and 30 pF internal capacitance. Verify that alternative parts meet the same ±0.5% tolerance and 40 Ohm impedance specifications to ensure circuit compatibility.