BF257A Datasheet. Equivalente. Reemplazo. Hoja de especificaciones. Principales características

Número de Parte: BF257A  📄📄 

Material: Si

Polaridad de transistor: NPN

ESPECIFICACIONES MÁXIMAS

Disipación total del dispositivo (Pc): 0.5 W

Tensión colector-base (Vcb): 180 V

Tensión colector-emisor (Vce): 180 V

Tensión emisor-base (Veb): 5 V

Corriente del colector DC máxima (Ic): 0.1 A

Temperatura operativa máxima (Tj): 125 °C

CARACTERÍSTICAS ELÉCTRICAS

Transición de frecuencia (fT): 55 MHz

Capacitancia de salida (Cc): 7 pF

Ganancia de corriente contínua (hFE): 25

Encapsulados: TO39

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BF257A datasheet

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

BF257A

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 pdf_icon

BF257A

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 pdf_icon

BF257A

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

Otros transistores... BF254-4, BF254B, BF255, BF255-2, BF255-3, BF255C, BF255D, BF257, BD335, BF257B, BF257C, BF257CSM, BF257D, BF257G, BF257N, BF257S, BF258