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— IC芯片 | 连接器 | 传感器 | 被动器件 —
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— IC芯片 | 连接器 | 传感器 | 被动器件 —

Monolithic crystal filter (MCF) products are used in radio and related applications as bandpass filters. Closely related to the quartz crystal resonators used widely for frequency generation, MCF filters employ the piezoelectric and mechanical resonance properties of the quartz material to produce a filter with very high selectivity in a compact package.
| Select products | Mfr | Description | Package | Supplier Device Package | Mounting Type | Series | Operating Temperature |
|---|---|---|---|---|---|---|---|
![]() ECS-21K-15A $2.82 | ECS Inc. | MONO XTAL 21.4MHZ 2P 1.5DB TH | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-21K-15B $2.73 | ECS Inc. | MONO XTAL 21.4MHZ 4P 2PC 2DB TH | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-21K-30A $2.92 | ECS Inc. | MONO XTAL 21.4MHZ 2P 1.5DB TH | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-21K-30B $3.20 | ECS Inc. | MONO XTAL 21.4MHZ 4P 2PC 2DB TH | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-21K-7.5A $2.92 | ECS Inc. | MONO XTAL 21.4MHZ 2P 2DB TH | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-21K-7.5B $6.21 | ECS Inc. | MONO XTAL 21.4MHZ 4P 2PC 2.5DB | Bulk | Through Hole | MCF | -20°C ~ 70°C | |
![]() ECS-38SMF45A15 $7.44 | ECS Inc. | MONO XTAL 45MHZ 2P 2DB SMD | Tape & Reel (TR) | Surface Mount | ECS-38SMF | -30°C ~ 80°C | |
![]() ECS-38SMF45A30 $12.65 | ECS Inc. | MONO XTAL 45MHZ 2P 2.5DB SMD | Tape & Reel (TR),Cut Tape (CT) | Surface Mount | ECS-38SMF | -30°C ~ 80°C |

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