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https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1023890/lm139-n-pb-suffix-meaning
大家好、
对于 LM139J/PB、/PB 后缀意味着什么？ 它是否与"铅"涂层有关？ 此致、 卡洛
您好、Carlo、
是的。 /PB 适用于仍需要该涂层的人的"铅"铅镀层涂层。
