ECS-45K7.5A

Overview

The ECS-45K7.5A is a monolithic crystal filter manufactured by ECS Inc., designed for precise frequency selection in electronic circuits. It operates at a center frequency of 45 MHz with a bandwidth of 10 kHz and an insertion loss of 2 dB. The component features a 350 Ohm impedance and requires a load capacitance of 10.5 pF. Housed in a UM-1 package measuring 7.30mm x 2.50mm, it supports through-hole mounting and functions within a temperature range of -20°C to 70°C.

Feature Summary

• High quality factor (Q) and excellent temperature stability
• Compact monolithic design offering cost efficiency compared to discrete filters
• Radial termination style for standard through-hole integration

Applications

• Intermediate frequency (IF) filtering in communication receivers
• Signal processing stages requiring narrowband frequency selection
• Test and measurement equipment signal conditioning

Procurement Notes

Verify the specific datasheet version from ECS Inc. to confirm mechanical dimensions and electrical tolerances match your design requirements. Ensure the UM-1 package footprint aligns with your PCB layout. Confirm that the operating temperature range of -20°C to 70°C suits your environmental conditions. Cross-reference the 10.5 pF load capacitance requirement with your circuit design to ensure proper impedance matching and performance.

Selection Notes

Select this component when a 45 MHz center frequency with 10 kHz bandwidth is required. Consider the 350 Ohm impedance and 2 dB insertion loss against system sensitivity needs. The UM-1 through-hole package dictates board space and assembly method. Evaluate the -20°C to 70°C operating range against environmental constraints. Compare monolithic advantages over discrete solutions for size and cost benefits.

Part Context

This part belongs to the ECS monolithic crystal filter family, which utilizes single-crystal technology for high Q-factor performance. These filters are engineered to replace larger, more expensive discrete crystal ladder networks. The UM-1 package is a standard form factor for through-hole mounting, facilitating easy integration into existing manufacturing processes while providing reliable frequency discrimination.

Replacement Considerations

Check for direct substitutes with identical 45 MHz center frequency and 10 kHz bandwidth. Verify impedance compatibility (350 Ohms) and insertion loss specifications. Ensure replacement parts support the same UM-1 through-hole package and radial termination style. Confirm operational temperature ranges meet or exceed -20°C to 70°C. Validate load capacitance requirements to maintain circuit stability.