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BF257 PDF预览

BF257

更新时间: 2024-11-14 22:39:35
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 晶体视频放大器小信号双极晶体管高压
页数 文件大小 规格书
5页 86K
描述
HIGH VOLTAGE VIDEO AMPLIFIERS

BF257 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:not_compliantHTS代码:8541.29.00.75
风险等级:5.18最大集电极电流 (IC):0.1 A
集电极-发射极最大电压:160 V配置:SINGLE
最小直流电流增益 (hFE):25JEDEC-95代码:TO-39
JESD-30 代码:O-MBCY-W3JESD-609代码:e0
元件数量:1端子数量:3
最高工作温度:175 °C封装主体材料:METAL
封装形状:ROUND封装形式:CYLINDRICAL
峰值回流温度(摄氏度):NOT SPECIFIED极性/信道类型:NPN
最大功率耗散 (Abs):5 W认证状态:Not Qualified
子类别:Other Transistors表面贴装:NO
端子面层:Tin/Lead (Sn/Pb)端子形式:WIRE
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
晶体管元件材料:SILICON标称过渡频率 (fT):90 MHz
Base Number Matches:1

BF257 数据手册

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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  
Parameter  
Unit  
BF257 BF258 BF259  
VCBO  
VCEO  
VEBO  
IC  
Collector-base Voltage (IE = 0)  
160  
160  
250  
300  
300  
V
V
Collector-emitter Voltage (IB = 0)  
Emitter-base Voltage (IC = 0)  
Collector Current  
250  
5
V
100  
mA  
mA  
W
ICM  
Collector Peak Current  
200  
Pt ot  
Tstg  
Tj  
Total Power Dissipation at Tamb 50 °C  
Storage Temperature  
5
– 55 to 200  
200  
°C  
°C  
Junction Temperature  
October 1988  
1/5  

BF257 替代型号

型号 品牌 替代类型 描述 数据表
BD115LEADFREE CENTRAL

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Small Signal Bipolar Transistor, 180V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 P
BF257LEADFREE CENTRAL

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Small Signal Bipolar Transistor, 160V V(BR)CEO, 1-Element, NPN, Silicon, TO-39, TO-39, 3 P

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