STD845DN40 Datasheet - STMicroelectronics
MFG CO.

STMicroelectronics
Description
The device is a dual NPN high voltage power transistor manufactured using multi-epitaxial planar technology. It is housed in dual-island DIP-8 package with separated terminals to provide a high degree of assembly flexibility.
Features
◾ Low VCE(sat)
◾ Simplified circuit design
◾ Reduced component count
◾ Fast switching speed
Applications
◾ Compact fluorescent lamp (CFL) 220 V mains
◾ Electronic ballast for fluorescent lighting