®
THD277HI
HIGH VOLTAGE FAST-SWITCHING
NPN POWER
TRANSISTOR
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STMicroelectronics PREFERRED SALESTYPE HIGH VOLTAGE CAPABILITY U.
L.
RECOGNISED ISOWATT218 PACKAGE (U.
L.
FILE # E81734 (N)).
APPLICATIONS s HORIZONTAL DEFLECTION FOR COLOUR TV AND MONITORS s SWITCH MODE POWER SUPPLIES DESCRIPTION This device is manufactured using Multiepitaxial Mesa technology for cost-effective high performance and uses a Hollow Emitter structure to enhance switching speeds.
The THD series are designed for use in horizontal deflection circuits in televisions and monitors.
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ISOWATT218
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
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