RF1402D

Overview

The RF1402D is a surface-mount bandpass filter manufactured by RFMi, designed for signal conditioning applications. It operates at a center frequency of 315 MHz with a bandwidth of 1000 kHz, covering a range from 314.06 MHz to 315.94 MHz. The component features a 50 Ohm impedance and a maximum voltage rating of 12 V. It exhibits an insertion loss of 2.7 dB and is housed in an SM-3838-8 package with SMD/SMT termination. The device is qualified under AEC-Q200 standards and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• AEC-Q200 qualified for automotive reliability
• Surface-mount ceramic bandpass design
• Optimized for 315 MHz ISM band applications

Applications

• Automotive remote keyless entry systems
• Wireless sensor networks
• Industrial control transmitters

Procurement Notes

Verify the specific revision level and packaging configuration before ordering, as manufacturing standards may evolve. Confirm that the SM-3838-8 footprint matches your PCB layout requirements precisely. Ensure the 12 V voltage rating aligns with your circuit's operational limits. Check for any updated RoHS compliance documentation relevant to your region. Validate the AEC-Q200 qualification status if deploying in automotive environments.

Selection Notes

Select this component when a 50 Ohm impedance match is required for 315 MHz signals. The 1000 kHz bandwidth provides sufficient selectivity for standard ISM band communications. Consider the -40°C to +85°C temperature range for general industrial or automotive use. The low insertion loss of 2.7 dB helps maintain signal integrity. Compare against other SAW filters if higher impedance or different bandwidths are needed.

Part Context

The RF1402D belongs to the RFMi family of RF components, which includes SAW, crystal, and ceramic technologies. RFMi, now part of Akoustis, specializes in frequency control elements for digital and wireless devices. This bandpass filter complements their portfolio of resonators and filters used in transmitter stages. The product line emphasizes compact surface-mount solutions for modern electronic designs.

Replacement Considerations

No direct public substitute part numbers are confirmed for the RF1402D. Verify compatibility carefully if considering alternatives, as impedance, bandwidth, and package dimensions must match exactly. Consult manufacturer cross-reference guides for potential equivalents.