This part is a kind of semiconductor called C1846.

Function of this product has 2SC1846.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

Power Transistors 2SC1846 Silicon NPN epitaxial planar type For medium output power amplification Complementary to 2SA0885 ■ Features • Low collector-emitter saturation voltage VCE(sat) • Output of 3 W can be obtained by a complementary pair with 2SA0885 • TO-126B package which requires no insulation plate for installa- tion to the heat sink φ 3.16±0.1 8.0+–00..15 3.8±0.3 11.0±0.5 3.05±0.1 Unit: mm 3.2±0.2 1.9±0.1 16.0±1.0 ■ Absolute Maximum Ratings Ta = 25°C Parameter Symbol Rating Collector-base voltage (Emitter open) Collector-emitter voltage (Base open) Emitter-base voltage (Collector open) Collector current Peak collector current Collector power dissipation VCBO VCEO VEBO IC ICP PC 45 35 5 1 1.5 1.2 5.0 * Junction temperature Storage temperature Tj [ ... ]

C1846 PDF Datasheet Download