BPF-C70+

Overview

The BPF-C70+ is a narrow band bandpass filter from Mini-Circuits, designed for RF applications. It operates at a center frequency of 70 MHz with a bandwidth of 1 MHz (69.5 to 70.5 MHz). The component features a 50 Ohm impedance and an insertion loss of 8 dB. It is housed in a shielded surface-mount technology (SMT) package measuring 0.87 inches by 0.80 inches by 0.25 inches. The filter provides more than 50 dB of attenuation outside the passband.

Feature Summary

• Narrow band bandpass filtering capability centered at 70 MHz
• Shielded SMT package construction for electromagnetic isolation
• High out-of-band rejection exceeding 50 dB

Applications

• RF signal conditioning in communication systems
• Frequency selection in receiver front-ends
• Interference suppression in narrowband circuits

Procurement Notes

Verify the exact part number suffix and package type against the manufacturer's current datasheet before ordering. Confirm that the 8 dB insertion loss and 50 Ohm impedance specifications align with your system requirements. Ensure compatibility with standard SMT assembly processes given the specific package dimensions. Check for any recent design changes or obsolescence notices directly from Mini-Circuits.

Selection Notes

Select this component when a precise 70 MHz center frequency with a 1 MHz bandwidth is required. The 50 Ohm impedance matches standard RF transmission lines. Consider the 8 dB insertion loss impact on system noise figure. The shielded SMT package is suitable for space-constrained designs requiring moderate isolation. Evaluate if the narrow bandwidth meets the signal spectral requirements.

Part Context

This component belongs to the Mini-Circuits BPF series of bandpass filters. These filters are engineered for RF and microwave applications requiring specific frequency selection. The BPF-C70+ utilizes SMT technology for reliable surface mounting. It is part of a broader portfolio offering various center frequencies and bandwidths for diverse RF circuit needs.

Replacement Considerations

Consult Mini-Circuits documentation for direct substitutes. Verify that alternative parts match the 70 MHz center frequency, 1 MHz bandwidth, and 50 Ohm impedance. Ensure replacement components offer comparable insertion loss and out-of-band rejection levels. Check package footprint compatibility for SMT assembly.