View bf545a datasheet:

DISCRETE SEMICONDUCTORS DATA SHEET BF545A; BF545B; BF545C N-channel silicon junction field-effect transistors Product specification 1996 Jul 29 Supersedes data of April 1995 File under Discrete Semiconductors, SC07 Philips Semiconductors Product specification N-channel silicon junction BF545A; BF545B; BF545C field-effect transistors FEATURES • Low leakage level (typ. 500 fA) • High gain • Low cut-off voltage (max. 2.2 V for BF545A). handbook, halfpage 21 APPLICATIONS • Impedance converters in e.g. electret microphones and d g infra-red detectors s • VHF amplifiers in oscillators and mixers. 3 DESCRIPTION Top view MAM036 N-channel symmetrical silicon junction field-effect transistors in a SOT23 package. PINNING - SOT23 Marking codes: BF545A: M65. PIN SYMBOL