MCF U1 - Monolithic crystal filter MCF U1 - Monolithic crystal filter Monolithic crystal filter, UM-1 and UM-5 packages. 21.4 or 45MHz. 2, 4, 6 or 8 poles Dual-in-Line MHz Range All Make an enquiry download data sheet Monolithic crystal filter, UM-1 and UM-5 packages. 21.4 or 45MHz. 2, 4, 6 or 8 poles Features 2, 4. 6 or 8 pole filters 12.5, 20, 25 or 50kHz channel spacing Typical Applications Specifications