The maximum collector current is 50mA so do not drive load of more than 40mA and always store or operate the transistor at temperature above -55☌ and below +150 ☌. The maximum collector to emitter voltage is 120V therefore do not drive load of more than 96V. Safe Operating Guidelines / Absolute Maximum Ratings:įor safe operating do not use the transistor on its absolute maximum ratings and use it at least 20% below from these ratings. It can also be used as a switch to drive a load of 50mA. Another advantage of this transistor is that you can use it in circuits up to 120V or load up to 120V, as it has a collector-to-emitter voltage of 120V. It can also be used in Radio and RF applications under 110MHz frequency. KSC1845 is primarily built to use in audio frequency low noise amplifier applications but other than that it can also be used in wide variety of other applications such as signal amplification, due to its low noise and high gain features it can be used to amplify any type of low gain signals in electronics. If that alphabet is “P” then the gain value will be 200 to 400, if its “F” then the gain values will be 300 to 600, if “E” then the gain value will be 400 to 800 and if “U” then its gain value will be from 600 to 1200. However, the transistor is available in four different DC current gain or hFE classification which can be determined by the alphabet used after the part number. The maximum collector to emitter voltage of the transistor is 120V maximum collector current is 50mA, max collector power dissipation is 500mW, max transition frequency is 110MHz, and the max junction temperature is 150 ☌.Īs discussed above the it has quite good DC current gain parameter which is from 150 to 1200.

The transistor is designed to use in audio frequency low noise amplifier applications and due to its low noise and high gain characteristics it can be used in wide variety of audio preamplifier and signal amplification applications. KSC1845 is an NPN BJT transistor available in TO-92 package. If you are looking for a transistor with a high DC current gain, good transition frequency and high collector to emitter voltage then KSC1845 might be a good choice. KSC1845 Transistor Explained / Description: Max Storage, Operating & Junction temperature range: -55 to +150 Centigrade.Minimum & Maximum DC Current Gain (hFE): 150 to 1200.Max Transition Frequency (fT): 50 to 110 MHz.Max Collector-Emitter Voltage (VCE): 120V.

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