This part is a kind of semiconductor called 78L24.

Function of this product has 3-Terminal positive voltage regulator.

Manufacturers : SEMTECH

Image and pinout :

Some of the text within the PDF file :

ST 78L24 3-Terminal positive voltage regulator 24V • Suitable for TTL, DTL, HTL, C-MOS, Power Supply • Internal Short-Circuit Current Limiting • Internal Thermal Overload Protection • Maximum Output Current of 150mA (Tj=25oC) • Available in the Plastic TO-92 Package TO-92 Plastic Package Weight approx. 0.19g Absolute Maximum Ratings (T a = 25 oC) Symbol Value 40 800 -30~75 -55~150 Unit V mW °C °C Input Voltage Power Dissipation Operating Temperaturee Storage Temperature Range VIN Ptot Topr Ts G S P FORM A IS AVAILABLE . РАДИОТЕХ-ТРЕЙД ® Тел.: (495) 795-0805 Факс: (495) 234-1603 Эл. почта: info@rct.ru Веб: www.rct.ru ST 78L24 Electrical Characteristics (Unless otherwise specified, VIN=33V, IOUT=40mA, CIN=0.33µF, COUT=0.1µF, Tj=25°C) S [ ... ]

78L24 PDF Datasheet Download