BF257G datasheet и подбор замены

 9.1. Size:83K  st
 bf257 bf258 bf259.pdf 

BF257 BF258-BF259 HIGH VOLTAGE VIDEO AMPLIFIERS DESCRIPTION The BF257, BF258 and BF259 are silicon planar epitaxial NPN transistors in Jedec TO-39 metal case.They are particularly designed for videooutput stages in CTV and MTV sets, class A audio output stages and drivers for horizontal deflection circuits. TO-39 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Value Symbol Para

 9.2. Size:11K  semelab
 bf257dcsm.pdf 

BF257DCSM Dimensions in mm (inches). Dual Bipolar NPN Devices in a hermetically sealed LCC2 Ceramic Surface Mount Package for High Reliability 1.40 0.15 2.29 0.20 1.65 0.13 (0.055 0.006) (0.09 0.008) (0.065 0.005) Applications 2 3 1 4 Dual Bipolar NPN Devices. A 0.23 6 5 rad. (0.009) V = 160V CEO 6.22 0.13 A = 1.27 0.13 I = 0.1A C (0.0

 9.3. Size:29K  semelab
 bf257csm4.pdf 

BF257CSM4 SILICON PLANAR NPN HIGH MECHANICAL DATA VOLTAGE TRANSISTOR IN A Dimensions in mm (inches) CERAMIC SURFACE MOUNT PACKAGE 1.40 0.15 5.59 0.13 (0.055 0.006) (0.22 0.005) 0.25 0.03 (0.01 0.001) 0.23 rad. (0.009) 3 2 0.23 4 1 min. (0.009) FEATURES High Voltage 1.02 0.20 2.03 0.20 (0.04 0.008) (0.08 0.008) Ceramic Surface Mount

 9.4. Size:132K  tesla
 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 

 9.5. Size:136K  cdil
 bf257 bf258 bf259.pdf 

Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company NPN SILICON HIGH VOLTAGE TRANSISTORS BF257, BF 258, BF259 TO-39 Metal Can Package INTENDED FOR VIDEO OUTPUT STAGES IN BLACK AND WHITE AND IN COLOUR TELEVISION REVEIVERS. ABSOLUTE MAXIMUM RATINGS (Ta=25 C unless specified otherwise) DESCRIPTION SYMBOL BF257 BF258 BF259 UNITS VCEO Collector Emit