BF257 datasheet(1/5 Pages) STMICROELECTRONICS

部件名	BF257

功能描述	HIGH VOLTAGE VIDEO AMPLIFIERS

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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BF257

BF258-BF259

October 1988

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.

ABSOLUTE MAXIMUM RATINGS

Val ue

Symbol

Parameter

BF 257

BF258

BF25 9

Unit

VCBO

Collector-base Voltage (IE = 0)

160

250

300

V

VCEO

Collector-emitter Voltage (IB = 0)

160

250

300

V

VEBO

Emitter-base Voltage (IC =0)

5

V

I C

Collector Current

100

mA

I CM

Collector Peak Current

200

mA

Ptot

Total Power Dissipation at Tamb ≤ 50 °C5

W

T stg

Storage Temperature

– 55 to 200

°C

T j

Junction Temperature

200

°C

INTERNAL SCHEMATIC DIAGRAM

TO-39

1/5

类似零件编号 - BF257

制造商	部件名	数据表	功能描述
Micro Electronics	BF257	115Kb / 2P	NPN HIGH VOLTAGE VIDEO AMPLIFIER
Central Semiconductor C...	BF257	56Kb / 1P	Small Signal Transistors
Seme LAB	BF257	15Kb / 1P	Bipolar NPN Device in a Hermetically sealed TO39
Continental Device Indi...	BF257	142Kb / 3P	NPN SILICON HIGH VOLTAGE TRANSISTORS
New Jersey Semi-Conduct...	BF257	103Kb / 3P	HIGH VOLTAGE VIDEO AMPLIFIERS

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类似说明 - BF257

制造商	部件名	数据表	功能描述
STMicroelectronics	BF457	65Kb / 3P	HIGH VOLTAGE VIDEO AMPLIFIERS January 1989
Boca Semiconductor Corp...	2N3439	262Kb / 6P	HIGH VOLTAGE AMPLIFIERS
Elantec Semiconductor	EL4430C	311Kb / 12P	Video Instrumentation Amplifiers
Micro Electronics	BF391	139Kb / 2P	NPN HIGH VOLTAGE VIDEO AMPLIFIERS
Texas Instruments	UA733	486Kb / 16P	DIFFERENTIAL VIDEO AMPLIFIERS
Intersil Corporation	EL4430	185Kb / 10P	Video Instrumentation Amplifiers January 1996
Texas Instruments	UA733	592Kb / 17P	DIFFERENTIAL VIDEO AMPLIFIERS
New Jersey Semi-Conduct...	BF257	103Kb / 3P	HIGH VOLTAGE VIDEO AMPLIFIERS
Texas Instruments	UA733C	905Kb / 21P	DIFFERENTIAL VIDEO AMPLIFIERS
Micro Electronics	BF297	142Kb / 2P	NPN HIGH VOLTAGE VIDEO AMPLIFIERS