Low Profile Lowpass
& Highpass
Custom Built LC Filters -
10 KHz to
5 MHz
Allen Avionics manufacturers Lowpass, Highpass and Bandpass Filters using many design types such as: Butterworth, Chebyshev and Elliptic Functions. The filters tabulated on this page are Chebyshev type. Other types can be designed when their special properties are needed. All the Filters in the Low Profile Series are a maximum of 1/2 inch high to accommodate modern high density low profile circuit board design. For Lowpass, Highpass and Bandpass Filters above 5 MHz , see our subminiature series.
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Frequency Range: 10 KHz to 5 MHz
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Impedance Range: 50 Ohms to 2.5 K Ohms
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Excellent temperature stability
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Construction: Sealed in metal cans with PC terminals
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Delivery: Prototypes can often be delivered in less than 7 days.
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Maximum Ripple: .5dB
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Maximum Insertion Loss: 1dB
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Order any Cutoff Frequency required. Interpolation between listed frequencies is allowable.
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Size (Inches) |
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Mechanical Specifications for Low Profile Filters |
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| Case |
L |
W |
H |
E |
| C1 | 4.000 | 1.500 | 3.70 | 1.20 |
| C2 | 3.000 | 1.625 | 2.70 | 1.30 |
| C3 | 2.500 | 1.625 | 2.30 | 1.30 |
| C4 | 2.000 | 1.625 | 1.70 | 1.30 |
| C5 | 3.000 | 1.000 | 2.70 | .70 |
| C6 | 2.500 | 1.000 | 2.20 | .70 |
| C7 | 2.000 | 1.000 | 1.70 | .70 |
| C8 | 3.000 | .750 | 2.70 | .45 |
| C9 | 2.500 | .750 | 2.20 | .45 |
| C10 | 2.000 | .750 | 1.70 | .45 |
| C11 | 1.500 | .750 | 1.20 | .45 |
