What is BC109B?


This is NPN SILICON PLANAR TRANSISTORS.

A NPN transistor is a type of bipolar junction transistor (BJT) that consists of two p-type semiconductor materials separated by a single n-type material.
The NPN transistor is used to amplify or switch electronic signals and is widely used in many electronic circuits. It works by controlling the current flow between the collector and emitter terminals through the base terminal.


[PDF] Complete Technical Details can be found in the BC109B datasheet provided at this page.

Summary in PDF File


Continental Device India Limited An ISO TS 16949 ISO 9001 and ISO 14001 Certified Company NPN SILICON PLANAR TRANSISTORS BC107 A B C BC108 A B C BC109 A B C TO 18 Metal Can Package Low Noise General Purpose Audio Amplifiers ABSOLUTE MAXIMUM RATINGS DESCRIPTION Collector Emitter Voltage Collector Base Voltage Emitter Base Voltage Collector Current Continuous Power Dissipation at T a 25 C Derate above 25 C Power Dissipation at T c 25 C Derate above 25 C Operating And Storage Junction Temperature Range THERMAL CHARACTERISTICS Junction to Ambient in free air Junction to Case SYMBOL VCEO VCBO VEBO IC PD PD Tj Tstg BC107 45 50 6 0 BC108 25 30 5 0 200 300 1 72 750 4 29 65 to 200 BC109 25 30 5 0 UNIT V V V mA mW mW C mW mW C C Rth j a Rth j c 583 233 C W C W www datasheetgo.com ELECTRICAL CHARACTERISTICS Ta 25 C unless specified otherwise DESCRIPTION SYMBOL TEST CONDITION V IC 2mA IB 0 Collector Emitter Voltage CEO VEBO IE 10 A IC 0 Emitter Base Voltage ICBO VCB 45V IE 0 Collector Cut Off Current BC107 45 6 15 BC108 25 5 15 BC109 25 5 15 4 UNIT V V nA nA A A VCB 25V IE 0 VCB 45V IE 0 Ta 125 C VCB 25V IE 0 Ta 125 C DC Current Gain hFE IC 10 A VCE 5V B Group C Group IC 2mA VCE 5V BC107 BC108 BC109 A Gr

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[ Detailed Data ]


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 : CDIL

CDIL - BC109B Datasheet PDF

CDIL BC109B TRANSISTOR

NPN SILICON PLANAR TRANSISTORS

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