BF257C Datasheet, Equivalent, Cross Reference Search
Type Designator: BF257C
Material of Transistor: Si
Polarity: NPN
Maximum Collector Power Dissipation (Pc): 0.5 W
Maximum Collector-Base Voltage |Vcb|: 220 V
Maximum Collector-Emitter Voltage |Vce|: 220 V
Maximum Emitter-Base Voltage |Veb|: 5 V
Maximum Collector Current |Ic max|: 0.1 A
Max. Operating Junction Temperature (Tj): 125 °C
Transition Frequency (ft): 55 MHz
Collector Capacitance (Cc): 7 pF
Forward Current Transfer Ratio (hFE), MIN: 25
Noise Figure, dB: -
Package: TO39
BF257C Transistor Equivalent Substitute - Cross-Reference Search
BF257C Datasheet (PDF)
bf257csm4.pdf
BF257CSM4SILICON PLANAR NPN HIGHMECHANICAL DATAVOLTAGE TRANSISTOR IN A Dimensions in mm (inches)CERAMIC SURFACE MOUNTPACKAGE1.40 0.155.59 0.13(0.055 0.006)(0.22 0.005)0.25 0.03(0.01 0.001)0.23rad.(0.009)3 20.234 1min.(0.009)FEATURES High Voltage1.02 0.20 2.03 0.20(0.04 0.008) (0.08 0.008) Ceramic Surface Mount
bf257 bf258 bf259.pdf
BF257BF258-BF259HIGH VOLTAGE VIDEO AMPLIFIERSDESCRIPTIONThe BF257, BF258 and BF259 are silicon planarepitaxial NPN transistors in Jedec TO-39 metalcase.They are particularly designed for videooutputstages in CTV and MTV sets, class A audio outputstages and drivers for horizontal deflection circuits.TO-39INTERNAL SCHEMATIC DIAGRAMABSOLUTE MAXIMUM RATINGSValueSymbol Para
bf257dcsm.pdf
BF257DCSMDimensions in mm (inches). Dual Bipolar NPN Devices in a hermetically sealed LCC2 Ceramic Surface Mount Package for High Reliability 1.40 0.152.29 0.20 1.65 0.13(0.055 0.006)(0.09 0.008) (0.065 0.005)Applications 2 314Dual Bipolar NPN Devices. A0.236 5rad. (0.009) V = 160V CEO6.22 0.13 A = 1.27 0.13I = 0.1A C(0.0
kf124 kf125 bf167 bf173 bf257 bf258 bf259 kf422 bf457 bf458 bf459 kf469 kf503 kf504 kf506 kf507 kf508-a kf509 kf524 kf525 ks500 sf240 sf245 sf357 sf358 sf359 kf589 kf590.pdf
bf257 bf258 bf259.pdf
Continental Device India LimitedAn ISO/TS 16949, ISO 9001 and ISO 14001 Certified CompanyNPN SILICON HIGH VOLTAGE TRANSISTORS BF257, BF 258, BF259TO-39Metal Can PackageINTENDED FOR VIDEO OUTPUT STAGES IN BLACK AND WHITE AND IN COLOUR TELEVISION REVEIVERS.ABSOLUTE MAXIMUM RATINGS (Ta=25C unless specified otherwise)DESCRIPTION SYMBOL BF257 BF258 BF259 UNITSVCEOCollector Emit
Datasheet: 2N3200 , 2N3201 , 2N3202 , 2N3203 , 2N3204 , 2N3205 , 2N3206 , 2N3207 , B772 , 2N3209 , 2N3209AQF , 2N3209CSM , 2N3209DCSM , 2N3209L , 2N321 , 2N3210 , 2N3211 .
