BFCN-4100+ 3.7–4.5GHz LTCC Bandpass Filter
Manufacturer: Mini-Circuits
Package / Case: FV1206 surface mount
Description: 3.7–4.5 GHz, 50-ohm LTCC bandpass filter
The Mini-Circuits BFCN-4100+ is a compact 50-ohm LTCC bandpass filter designed to pass signals from 3700 to 4500 MHz. Centered at 4100 MHz, it combines low passband loss, useful out-of-band rejection and a miniature FV1206 surface-mount package for space-constrained RF designs.
BFCN-4100+ Specifications
| Parameter | Value |
| Filter type | Bandpass |
| Passband | 3700–4500 MHz |
| Center frequency | 4100 MHz |
| Passband insertion loss | 1.4 dB typical, 2.0 dB maximum |
| Passband VSWR | 1.2:1 typical |
| Lower stopband rejection | 20 dB minimum, DC–2200 MHz |
| Upper stopband rejection | 15 dB minimum, 6000–9000 MHz |
| Impedance | 50 ohms |
| Maximum RF input power | 1.5 W |
| Operating temperature | -55°C to +100°C |
| Package | FV1206, surface mount |
| Approximate dimensions | 3.2 × 1.6 × 0.94 mm |
| Compliance | RoHS compliant |
Typical Applications
C-band transmitter and receiver signal chains operating within 3.7–4.5 GHz
Harmonic and out-of-band signal rejection
RF frequency-conversion stages
Wireless infrastructure and radio equipment
RF test and measurement systems
FCN-4100+ Price and Availability
Contact us for the current BFCN-4100+ price, stock availability, lead time and datasheet. Please include the required quantity, target delivery date and destination with your RFQ.
FAQ
What is the frequency range of the BFCN-4100+?
Its specified passband is 3700 to 4500 MHz, with a center frequency of 4100 MHz.
What package does the BFCN-4100+ use?
It uses the compact Mini-Circuits FV1206 surface-mount case, approximately 3.2 × 1.6 × 0.94 mm.
What is the maximum insertion loss?
The specified passband insertion loss is 1.4 dB typical and 2.0 dB maximum at 25°C.
Can the BFCN-4100+ be used as a DC-blocking capacitor?
No. Mini-Circuits states that it is not intended for DC blocking. Add external RF blocking capacitors when DC is present at an input or output port.
Is an evaluation board available?
Yes. Mini-Circuits lists the TB-BFCN-4100+ evaluation board for testing and characterization.
Specifications should be verified against the latest manufacturer datasheet before final design or purchasing.
