[PDF] What is 2SC4249 TRANSISTOR? (742125)

The 2SC4249 is Silicon NPN Epitaxial made by Kexin.

Brief overview of the content in a 2SC4249 PDF file

SMD Type Silicon NPN Epitaxial 2SC4249 Features High gain Gpe 24dB typ f 200 MHz Low noise NF 2 0dB typ f 200 MHz Excellent forward AGC characteristics Transistors IC 1 Emitter 2 Base 3 Collector Absolute Maximum Ratings Ta 25 Parameter Collector base voltage Collector emitter voltage Emitter base voltage Collector current Base current Collector power dissipation Junction temperature Storage temperature Symbol VCBO VCEO VEBO IC IB PC Tj Tstg Rating 30 30 3 20 10 100 125 55 to 125 Unit V V V mA mA mW Electrical Characteristics Ta 25 Parameter Collector cut off current Emitter cut off current Collector emitter breakdown voltage DC current gain Reverse transfer capacitance Transition frequency Power gain Noise figure AGC voltage Symbol ICBO IEBO Testconditons VCB 25 V IE 0 VEB 2 V IC 0 30 60 150 0 35 400 20 650 24 2 0 VCC 12 V GR 30dB f 200 MHz 3 6 4 4 28 3 2 5 1 300 0 5 pF MHz dB dB V Min Typ Max 100 100 Unit nA nA V V BR CEO IC 1 mA IB 0 hFE Cre fT Gpe NF VAGC VCE 10 V IC 2 mA VCB 10 V IE 0 f 1 MHz VCE 10 V IC 2 mA VCC 12 V VAGC 1 4 V f 200 MHz Marking Marking HD www kexin com cn 1 Free Datasheet http www datasheetgo.com

[ Comprehensive information ]

Characteristics of NPN Transistors

1. Bipolar Junction: NPN transistors are bipolar junction transistors (BJT), meaning they have a structure consisting of three regions of alternating P-type and N-type semiconductors.

2. Current Amplification: NPN transistors are designed to amplify electrical current, and can be used in a wide range of electronic applications such as amplifiers, switches, and oscillators.

3. Forward Biased: In order to operate, the base-emitter junction of an NPN transistor must be forward biased, meaning that the base must be connected to a positive voltage relative to the emitter.

4. High Input Impedance: NPN transistors have a high input impedance, which means that they are less likely to draw current from the input source, and are therefore less likely to cause a drop in voltage across the source.

5. Inverted Output: NPN transistors are known for producing an inverted output relative to their input.

Manufacturers : Kexin