Equivalent Transistors:
2SC2581, 2SC2706, 2SC2837, 2SC3182, 2SC3182-O, 2SC3280, 2SC3281, 2SC3284, 2SC3519, 2SC3519A, 2SC3519A-O, 2SC3519A-P, 2SC3519A-Y, 2SC3855, 2SC3907, 2SC4468, 2SC5198, 2SC5199 , 2SC5200, 2SC5200N, 2SC5358, 2SC5948, 2SC5949, 2SC6011, 2SC6011A, 2SC6011A-O, 2SC6011A-P, 2SC6011A-Y, 2SD1148, 2SD2155, FJA4310, KTC5200, KTC5200A, KTC5242, KTC5242A, KTD718, KTD718B, KTD998, MJW3281A, 81AG or NTE2328.
(Pin configuration of SOME transistors It differs from C1815. (It is recommended to check the pin configuration of the transistor before changing it in a circuit.)
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