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Product Detailed Parameters
- Description：RF FILTER BAND PASS 28GHZ 1812
- Series：BFHK
- Mfr：Mini-Circuits
- Package：Tape & Reel (TR),Cut Tape (CT)
- Frequency：28GHz Center
- Bandwidth：3GHz
- Filter Type：Band Pass
- Ripple：-
- Insertion Loss：4.5dB
- Mounting Type：Surface Mount
- Package / Case：1812 (4532 Metric), 3 PC Pad
- Size / Dimension：0.177" L x 0.126" W (4.50mm x 3.20mm)
- Height (Max)：0.063" (1.60mm)
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Overview
The BFHK-2802+ is an LTCC bandpass filter designed for high-frequency applications. It operates within a passband of 26.5 GHz to 29.5 GHz, centered at 28 GHz with a bandwidth of 3 GHz. The component features a 50 Ohm impedance and supports surface-mount technology. Typical insertion loss is specified at 4.5 dB, while stopband rejection reaches 90 dB to 100 dB. This filter is compliant with RoHS and REACH standards.
Feature Summary
- Utilizes Low-Temperature Co-fired Ceramic (LTCC) technology for compact surface-mount integration
- Provides strong suppression of out-of-band signals through high stopband rejection
- Engineered for clean signal transmission in microwave frequency ranges
Applications
- 5G n257 band implementation
- Microwave communication systems
- RF front-end modules requiring specific bandpass characteristics
Procurement Notes
Verify the exact datasheet revision when sourcing, as specifications may vary between releases. Confirm that the suffix '+' indicates RoHS compliance. Ensure the ordering part number matches the required package style. Cross-reference impedance values with system requirements before finalizing procurement orders.
Selection Notes
Select this component when a narrow bandpass response around 28 GHz is required. Consider the physical size constraints of the LTCC package against available board space. Evaluate insertion loss impacts on overall link budget. Ensure the operating temperature range aligns with the intended environmental conditions.
Part Context
Mini-Circuits manufactures RF and microwave components ranging from DC to 86 GHz. The BFHK series represents their line of LTCC bandpass filters. These components are designed for compact applications needing reliable signal filtering. The manufacturer provides evaluation boards for testing performance in specific circuit configurations.
Replacement Considerations
Check Mini-Circuits documentation for direct substitutes. Verify that alternative parts match the 26.5-29.5 GHz passband and 50 Ohm impedance. Ensure replacement components maintain similar insertion loss and rejection levels.
