Five Pack 33-450E LT450EW 450 KHz IF Ceramic Filter Through Hole 5 Pin Four Plus One Layout Low Loss Ladder Topology Compatible With CF 450EW CFWS450E Replacement For 450 KHz IF Stages In Communications Receivers

Five-Pack 450 kHz Ceramic IF Filter with 4+1 Ladder Topology
✔️ 5-pin 4+1 layout, through-hole DIP, 11x7x8 mm, 450±1.5 kHz

Compact LT450EW 450 kHz ceramic IF filters designed for 450 kHz intermediate-frequency stages in communications receivers and transceivers. They’re used to restore selectivity in FM and wider-IF paths and fit standard 450 kHz footprints.

✅ Center frequency: 450 ± 1.5 kHz (11.0 × 7.0 × 8.0 mm body; 0.43 × 0.28 × 0.31 in)
✅ Bandwidth: 6 dB at ±7.5 kHz (15 kHz total)
✅ Package: Through-hole DIP, 5 pins in a 4+1 keyed layout; cross-reference LT450EW, LT450E, CF 450EW, CFWS450E
✅ Topology: low-loss ladder filter for IF sections

💡 What is a 450 kHz ceramic IF filter used for in radio receivers?

A handy, general explanation that applies across a range of radios:

- Used in intermediate-frequency stages to sharpen selectivity and reduce adjacent-channel bleed
- Helps maintain signal integrity in FM receivers and wide-IF paths
- Commonly used in refurbishments to restore tuning and performance
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