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BC817 / BC818
NPN Silicon Epitaxial Planar Transistors
for switching, AF driver and amplifier application,
These transistors are subdivided into three groups -16, -25, -40 according to their current gain. As complementary types, the PNP transistors BC807 and BC808 are recommended. Absolute Maximum Ratings (Ta = 25 OC) Parameter
Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Power Dissipation Thermal Resistance , Junction to Ambient Junction Temperature Storage Temperature Range BC817 BC818 BC817 BC818
SOT-23 Plastic Package
Symbol VCBO VCEO VEBO IC Ptot RJA TJ Ts
Value 50 30 45 25 5 500 200 500 150 - 55 to + 150
Unit V V V mA mW K/W
O
C C
O
Electrical Characteristics at Ta = 25 OC
Parameter DC Current Gain at VCE = 1 V, IC = 100 mA Current Gain Group -16 -25 -40 Symbol hFE hFE hFE hFE ICBO IEBO VCEsat VBE(on) fT CCBO Min. 100 160 250 40 100 Typ. 5 Max. 250 400 600 100 100 0.7 1.2 Unit nA nA V V MHz pF
at VCE = 1 V, IC = 500 mA Collector Base Cutoff Current at VCB = 20 V Emitter-Base Cutoff Current at VEB = 5 V Collector Saturation Voltage at IC = 500 mA, IB = 50 mA Base-Emitter Voltage at IC = 500 mA, VCE = 1 V Gain -Bandwidth Product at VCE = 5 V, IC = 10 mA, f = 50 MHz Collector-Base Capacitance at VCB = 10 V, f = 1 MHz
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 19/12/2005
BC817 / BC818
Power Dissipation vs Ambient Temperature
300
Power Dissipation: Ptot (mW)
250
200
150
100
50 0 0 25 50 75 100
O
125
150
Ambient Temperature: Ta ( C)
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 19/12/2005

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