The KSE340STU is an active NPN transistor from Fairchild/ON Semiconductor.

• Maximum Current Collector: 500mA
• VCEO Maximum Collector-Emitter Breakdown Voltage: 300V
• Collector Cut-Off Current(max): 100μA (ICBO)
• Typical Gain (hFE) (Min): 30 @ 50mA, 10V
• Maximum Power Dissipation: 20W
• Package: TO-126-3
• Supply and Demand Status: sufficient
• Quantity per Package: 1,920
• Alternative parts (cross-reference): MJE340 Lead Free and MJE340
• Introduction Date: December 28, 2001
• Estimated EOL Date: obsolete/end of life
• Halogen-Free Compliance: compliant
• ECCN: EAR99
• Country of Origin: China