This part is a kind of semiconductor called 3CA1837.

Function of this product has SILICON PNP TRANSISTOR.

Manufacturers : LZG

Image and pinout :

Some of the text within the PDF file :

2SA1837(3CA1837) 硅 PNP 半导体三极管/SILICON PNP TRANSISTOR 用途:用于一般功率放大和驱动级放大。 Purpose: Power amplifier, driver stage amplifier applications. 特点: 特征频率高,与 2SC4793(3DA4793)互补。 Features: High transition frequency, complementary to 2SC4793(3DA4793). 极限参数/Absolute maximum ratings(Ta=25℃) 参数符号 数值 单位 Symbol Rating Unit VCBO -230 V VCEO -230 V VEBO -5.0 V IC -1.0 A IB -0.1 A PC(Ta=25℃) 2.0 W PC(Tc=25℃) 20 W Tj 150 ℃ Tstg -55～150 ℃ 电性能参数/Electrical characteristics(Ta=25℃) 参数符号 Symbol 测试条件 Test condition VCEO ICBO IEBO hFE VCE(sat) VBE fT Cob IC=-10mA IB=0 VCB=-230V IE=0 VEB=-5.0V IC=0 VCE=-5.0V IC=-100mA IC=-500mA IB=-50mA VCE=-5 [ ... ]

3CA1837 PDF Datasheet Download