BD139 Medium Power NPN Transistor from Canada
BD139 is a medium-power NPN transistor (80V/1.5A) for audio drivers and switching applications. HTS 8541.29.00 classification. Popular in European amplifier designs.
Duty Rate — Canada → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Specify thermal resistance for heat sink design requirements
• Include safe operating area (SOA) for pulsed audio applications
• Comply with automotive AEC-Q101 qualification if specified