BUY LM234Z-6/NOPB https://www.utsource.net/itm/p/835556.html
LM134/LM234/LM334 3-Terminal Adjustable Current Sources; Package: TO-92; No of Pins: 3; Qty per Container: 1800/Box
Description: Voltage Reference Diode Features: * Low temperature coefficient * Low dynamic impedance * Low noise * High accuracy Application: * Voltage regulation * Battery management * Automotive systems * Industrial systems * Medical systems (For reference only)