We have had several request for LRC LMBT3904LT1G. Unfortunately, we don’t carry this supplier. Please review the possible substitute.
Digi-Key Electronics Part Number 1514-CMPT3904GTRPBFREECT-ND
Central Semiconductor Corp Part Number "CMPT3904G TR PBFREE"
TRANS NPN 40V 0.2A SOT-23
Please review the datasheets to ensure the alternative will work for your application.