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Mini Circuits BFCN 1945 Plus LTCC Band Pass Filter Featuring 12 Layers and Wrap Around Terminations

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Mini Circuits BFCN 1945 Plus LTCC Band Pass Filter Featuring 12 Layers and Wrap Around Terminations

Impedance : 50Ω

Insertion Loss : 2dB

Type of Filter : Bandpass Filter

Bandwidth : 1850MHz~2040MHz

Frequency - Center : 1.945GHz

Description : 50Ω 2dB 1850MHz~2040MHz 1.945GHz SMD3216-4P Ceramic Filters RoHS

Mfr. Part # : BFCN-1945+

Model Number : BFCN-1945+

Package : SMD3216-4P

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Product Overview

The BFCN-1945+ is an LTCC Band Pass Filter constructed with 12 layers, offering miniature size and high repeatability of performance. It covers the frequency range of 1945 MHz 95 MHz, providing low insertion loss and good rejection. Wrap-around terminations minimize performance variations due to parasitics.

Product Features

Small Size (3.20mm x 1.6 mm) for high layout density and minimized parasitics.
Rejection peaks at harmonic frequencies for improved system performance.
Wrap-around termination for excellent solderability and easy visual inspection.
LTCC construction provides a rugged package suitable for tough environments.

Product Attributes

Brand: Mini-Circuits
Origin: USA (implied by address)
Material: LTCC (Low Temperature Co-fired Ceramic)
Certifications: +RoHS Compliant

Technical Specifications

Parameter	Frequency (MHz)	Typ.	Max.	Unit	Notes
Pass Band Center Frequency		1945		MHz
Insertion Loss	1850-2040	2.0	3.0	dB	Measured on Mini-Circuits Characterization Test Board TB-270.
VSWR	1850-2040		2.5	:1
Stop Band, Lower Insertion Loss	DC-1500	20		dB
Stop Band, Lower VSWR	DC-1500	25		:1
Stop Band, Upper Insertion Loss	3600-5700	25		dB
Stop Band, Upper VSWR	3600-5700	20		:1
Operating Temperature	-55 to 100			C
Storage Temperature	-55 to 100			C
RF Power Input	25C		1.5	W max.	*Passband rating, derate linearly to 0.25W at 100C ambient. Permanent damage may occur if any of these limits are exceeded.

Applications

Harmonic Rejection
Transmitters / Receivers

Outline Dimensions

A	B	C	D	E	F	G	H	J	K	L	M	N	P	wt
.126	.063	.037	.020	.032	.009	.169	.087	.024	.122	.024	.087	.012	.071	grams
3.20	1.60	0.94	0.51	0.81	0.23	4.29	2.21	0.61	3.10	0.61	2.21	0.30	1.80

PCB Land Pattern Suggested Layout, Tolerance to be within .002

Pin Connections

RF IN	GROUND	RF OUT
1	2,4	3

Product Marking

Available Tape and Reel

Reel Size	Devices/Reel
7	20, 50, 100, 200, 500, 1000, 3000

Demo Board MCL P/N: TB-270

Suggested PCB Layout (PL-137)

2410311338_Mini-Circuits-BFCN-1945-_C4989635.pdf

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Mini Circuits BFCN 1945 Plus LTCC Band Pass Filter Featuring 12 Layers and Wrap Around Terminations Images

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