可能是 250mW 稳压二极管, 封装 SOT-23 BZX84-B5V1 稳压 5.1V 精度 2%印记: ∗R1∗ = p : Made in Hong Kong.∗ = t : Made in Malaysia.∗ = W : Made in China.
可能是 250mW 稳压二极管, 封装 SOT-23