1 FUNCTIONS, 21.4 MHz, 3.75 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S
| 参数名称 | 属性值 |
| Reach Compliance Code | unknow |
| 其他特性 | 2 POLE |
| 最大衰减频率 (+/- delta f) | 18 kHz |
| 最大频率时的衰减 | 20 dB |
| 带宽 (+/- delta f) | 3.75 kHz |
| 中心频率或截止频率 (fo/fc) | 21.4 MHz |
| 滤波器类型 | CRYSTAL FILTER |
| 输入/输出阻抗 | 850 OHM//6 |
| 最大插入损耗 | 1.5 dB |
| 制造商序列号 | 21J1F |
| 功能数量 | 1 |
| 最高工作温度 | 80 °C |
| 最低工作温度 | -30 °C |
| Base Number Matches | 1 |
| 21J1F | 21J2A2 | 21J1E | 21J1B | 21J2B2 | 45E1FF | 45E1A9F | 55E2D3F | 55E1D3F | |
|---|---|---|---|---|---|---|---|---|---|
| 描述 | 1 FUNCTIONS, 21.4 MHz, 3.75 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S | 1 FUNCTIONS, 21.4 MHz, 15 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S | 1 FUNCTIONS, 21.4 MHz, 6 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S | 1 FUNCTIONS, 21.4 MHz, 7.5 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S | 1 FUNCTIONS, 21.4 MHz, 7.5 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S | 1 FUNCTIONS, 45 MHz, 3.75 kHz BW(delta f), CRYSTAL FILTER, CASE UM-1S, 3 PIN | 1 FUNCTIONS, 45 MHz, 15 kHz BW(delta f), CRYSTAL FILTER, CASE UM-4S, 3 PIN | 1 FUNCTIONS, 55 MHz, 10 kHz BW(delta f), CRYSTAL FILTER, CASE UM-4S, 3 PIN | 1 FUNCTIONS, 55MHz, 10kHz BW(delta f), CRYSTAL FILTER, CASE UM-4S, 3 PIN |
| Reach Compliance Code | unknow | unknow | unknow | unknow | unknow | unknown | unknown | unknown | unknown |
| 其他特性 | 2 POLE | 4 POLE | 2 POLE | 2 POLE | 4 POLE | 2 POLE | 2 POLE | 4 POLE | 2 POLE |
| 最大衰减频率 (+/- delta f) | 18 kHz | 50 kHz | 25 kHz | 28 kHz | 25 kHz | 12.5 kHz | 50 kHz | 40 kHz | 50 kHz |
| 最大频率时的衰减 | 20 dB | 40 dB | 20 dB | 18 dB | 40 dB | 10 dB | 10 dB | 40 dB | 17 dB |
| 带宽 (+/- delta f) | 3.75 kHz | 15 kHz | 6 kHz | 7.5 kHz | 7.5 kHz | 3.75 kHz | 15 kHz | 10 kHz | 10 kHz |
| 中心频率或截止频率 (fo/fc) | 21.4 MHz | 21.4 MHz | 21.4 MHz | 21.4 MHz | 21.4 MHz | 45 MHz | 45 MHz | 55 MHz | 55 MHz |
| 滤波器类型 | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER | CRYSTAL FILTER |
| 输入/输出阻抗 | 850 OHM//6 | 2000 OHM//0.5 | 1200 OHM//3 | 1500 OHM//2.5 | 1500 OHM//2 | 200 OHM//4 | 1200 OHM | 550 OHM//1.8 | 1100 OHM//2 |
| 最大插入损耗 | 1.5 dB | 2 dB | 1.5 dB | 1.5 dB | 2 dB | 2 dB | 2 dB | 4 dB | 2.5 dB |
| 制造商序列号 | 21J1F | 21J2A2 | 21J1E | 21J1B | 21J2B2 | 45E1FF | 45E1A9F | 55E2D3F | 55E1D3F |
| 功能数量 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| 最高工作温度 | 80 °C | 80 °C | 80 °C | 80 °C | 80 °C | 80 °C | 80 °C | 80 °C | 80 °C |
| 最低工作温度 | -30 °C | -30 °C | -30 °C | -30 °C | -30 °C | -30 °C | -30 °C | -30 °C | -30 °C |
| Base Number Matches | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - |
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