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BC237...BC239
NPN Silicon Epitaxial Planar Transistor
for switching and amplifier applications
The transistor is subdivided into three groups, A, B, and C, according to its DC current gain.
1. Collector 2. Base 3. Emitter TO-92 Plastic Package
Absolute Maximum Ratings (Ta = 25 OC) Parameter
Collector Base Voltage Collector Emitter Voltage Emitter Base Voltage Collector Current Total Power Dissipation Junction Temperature Storage Temperature Range
Symbol VCBO VCEO VEBO IC Ptot Tj TS
BC237 50 45 6
BC238 30 25 5 100 500 150
BC239 30 25
Unit V V V mA mW
O
C C
- 55 to + 150
O
Characteristics at Ta = 25 OC
Parameter DC Current Gain at VCE = 5 V, IC = 2 mA Current Gain Group A B C BC237 BC238, BC239 BC237 BC238, BC239 BC237 BC238, BC239 Symbol hFE hFE hFE ICBO V(BR)CEO V(BR)EBO VCE(sat) Min. 120 180 380 45 25 6 5 0.55 150 Max. 220 460 800 15 15 0.2 0.6 0.83 1.05 0.7 4.5 Unit nA V V V
Collector Base Cutoff Current at VCB = 50 V at VCB = 30 V Collector Emitter Breakdown Voltage at IC = 2 mA Emitter Base Breakdown Voltage at IE = 100 A Collector Emitter Saturation Voltage at IC = 10 mA, IB = 0.5 mA at IC = 100 mA, IB = 5 mA Base Emitter Saturation Voltage at IC = 10 mA, IB = 0.5 mA at IC = 100 mA, IB = 5 mA Base Emitter On Voltage at VCE = 5 V, IC = 2 mA Current Gain Bandwidth Product at VCE = 5 V, IC = 10 mA, f = 100 MHz Collector Base Capacitance at VCB = 10 V, f = 1 MHz
VBE(sat) VBE(on) fT Cob
V V MHz pF
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 27/12/2007
BC237...BC239
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company listed on the Hong Kong Stock Exchange, Stock Code: 724)
(R)
Dated : 27/12/2007

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