Crystal Filters
| Part | RoHS | Manufacturer | Filter Type | Construction | No. of Functions | Mounting Type | No. of Terminals | I/O Impedance | Dimensions | Maximum Operating Temperature | Attenuation At Maximum Frequency | Maximum Attenuation Frequency (± Δf) | Minimum Operating Temperature | Attenuation At Minimum Frequency | Minimum Attenuation Frequency (± Δf) | Terminal Finish | Height | Width (mm) | Bandwidth (± Δf) | Maximum Insertion Loss | Additional Features | Center/Cutoff Frequency (fo/fc) | JESD-609 Code | Length |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
SURFACE MOUNT |
8 |
560 OHM//6 |
L3.8XB3.8XH1.0 (mm)/L0.15XB0.15XH0.039 (inch) |
80 Cel |
25 dB |
13 kHz |
-30 Cel |
1 mm |
3.8 |
7.5 kHz |
2 dB |
TAPE AND REEL; 2 POLE |
45 MHz |
3.8 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
3 |
3000 OHM//2 |
L11.1XB4.7XH11.2 (mm)/L0.437XB0.185XH0.441 (inch) |
70 Cel |
25 dB |
18 kHz |
-20 Cel |
11.2 mm |
4.7 |
7.5 kHz |
2 dB |
2 POLE |
10.7 MHz |
11.1 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
3 |
1800 OHM//5 |
L11.1XB4.7XH11.2 (mm)/L0.437XB0.185XH0.441 (inch) |
70 Cel |
18 dB |
20 kHz |
-20 Cel |
11.2 mm |
4.7 |
3.75 kHz |
1.5 dB |
2 POLE |
10.7 MHz |
11.1 mm |
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|
Itti |
CRYSTAL FILTER |
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|
|
Microchip Technology |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
50 OHM |
L38.4XB18.2XH13 (mm) |
70 Cel |
90 dB |
100 kHz |
-20 Cel |
60 dB |
30 kHz |
Tin/Silver (Sn/Ag) |
13 mm |
7.5 kHz |
6 dB |
6 POLE |
70 MHz |
e2 |
38.4 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
3 |
850 OHM//5 |
L7.3XB2.5XH8.0 (mm)/L0.287XB0.098XH0.315 (inch) |
70 Cel |
12.5 dB |
35 kHz |
-20 Cel |
8 mm |
2.5 |
3.75 kHz |
2.5 dB |
4 POLE |
21.4 MHz |
7.3 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
3 |
5500 OHM//-1 |
L11.1XB4.7XH11.2 (mm)/L0.437XB0.185XH0.441 (inch) |
70 Cel |
40 dB |
30 kHz |
-20 Cel |
Gold (Au) - with Nickel (Ni) barrier |
11.2 mm |
4.7 |
15 kHz |
2.5 dB |
4 POLE |
10.7 MHz |
e4 |
11.1 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
THROUGH HOLE MOUNT |
3 |
1800 OHM//0.5 |
L7.3XB2.5XH8.0 (mm)/L0.287XB0.098XH0.315 (inch) |
70 Cel |
50 dB |
40 kHz |
-20 Cel |
8 mm |
2.5 |
15 kHz |
2 dB |
4 POLE |
21.4 MHz |
7.3 mm |
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|
|
Ecs International |
CRYSTAL FILTER |
MONOLITHIC |
1 |
SURFACE MOUNT |
6 |
2000 OHM//0.5 |
L7.0XB5.0XH1.5 (mm)/L0.276XB0.197XH0.059 (inch) |
80 Cel |
45 dB |
15 kHz |
-30 Cel |
1.5 mm |
5.0 |
15 kHz |
2 dB |
TAPE AND REEL; 2 POLE |
21.4 MHz |
7 mm |
Crystal filters are electronic filters that are used in RF and microwave communication systems to selectively filter out unwanted frequencies from a signal. They are designed to provide a high level of selectivity and precision in filtering, making them ideal for use in applications where accurate frequency response is critical.
Crystal filters use a quartz crystal resonator to selectively filter out specific frequencies from a signal. The quartz crystal is typically cut and polished to resonate at a specific frequency or range of frequencies. When a signal is applied to the crystal, it vibrates at its resonant frequency and filters out all other frequencies.
Crystal filters can be designed as band-pass filters, which allow only a specific range of frequencies to pass through, or as band-stop filters, which block a specific range of frequencies. They can also be designed with multiple crystals, which can increase the level of selectivity and precision in filtering.
Crystal filters are commonly used in a variety of RF and microwave communication systems, including radios, satellite communication systems, and radar systems. They are also used in scientific research applications, such as particle accelerators and radio telescopes.