电子TWO - TONE RINGER ELECTRONIC TWO - TONE RINGER
Telecom IC Tone Ringer 8-SO
得捷: IC TELECOM INTERFACE 8SO
艾睿: Telecom Ringer Phone 1740Hz to 2140Hz/1220Hz to 1600Hz 8-Pin SO N Tube
ST Microelectronics 意法半导体
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