DescriptionThe device is manufactured in Planar technology with Base Island layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage.Applications CCFL driversVoltage regulatorsRelay driversHigh efficiency, low voltage, switching applicationsFigure 1.Internal schematic diagram13 TO-252 DPAK (suffix T4) www.st.com features set forth in this document shall immediately voidany warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, anyliability of ST.ST and the ST logo are trademarks or registered trademarks of ST in various countries.Information in this document supersedes and replaces all information previously supplied.The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. 2007 STMicroelectronics - All rights reservedSTMicroelectronics group of companiesAustralia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of Americawww.st.comJune 2007Rev 11/1010 Table 1.Device summaryOrder codeMarkingPackagePackagingSTD1802T4-AD1802DPAKTape & reelSTD1802T4-ALow voltage fast-switching NPN po specifications are available at: www.st.comPackage mechanical dataSTD1802T4-A8/10 DIM.mminchMIN.TYP.MAX.MIN.TYP.MAX.A2.202.400.0870.094A10.901.100.0350.043A20.030.230.0010.009B0.640.900.0250.035B25.205.400.2040.213C0.450.600.0180.024C20.480.600.0190.024D6.006.200.2360.244E6.406.600.2520.260G4.404.600.1730.181H9.3510.100.3680.398L20.80.031L40.601.000.0240.039V20 o8o0o0oP032P_BTO-252 (DPAK) MECHANICAL DATASTD1802T4-ARevision history9/104 Revision history Table 5.Revision historyDateRevisionChanges28-Jun-20071Initial release.STD1802T4-A10/10 Please Read Carefully:Information in this document is provided solely in connection with ST products. STMicroelectronics NV and