销售商 | 型号 | 制造商 | 功能描述 | 价格 |
 Allied Electronics | 521B | Edwards Signaling | Photoelectric 2-wire Det GE | +1:$55.44 +5:$52.67 +10:$51.00 +25:$49.34 |
 Allied Electronics | 521B | Edwards Signaling & Security Systems | Photoelectric 2-wire Det GE | 1 : $43.98
|
 Allied Electronics | 521BXT | Edwards Signaling & Security Systems | Photoelectric 2-wire Det GE | 1 : $46.97
|
 Digi-Key 得捷电子 | 521B245N | BOMAR INTERCONNECT | 同轴连接器 (RF) - 连接器,互连器件 | 1000+:¥40.53 |
 Digi-Key 得捷电子 | 521B245N | Winchester Interconnect | CONN TNC JACK STR 50 OHM CRIMP | Active |
 Mouser 贸泽电子 | 521B245N | BOMAR INTERCONNECT | 同轴连接器 (RF) - 连接器,互连器件 | 1000+:¥4 |