Diodes Incorporated MMBTA42-7

MMBTA42-7 Overview
DC current gain' is equal to the ratio of the collector current to the base current, something like Ic/Ib, and this device has 40 @ 30mA 10V DC current gain.As it features a collector emitter saturation voltage of 500mV, it allows for maximum design flexibility.VCE saturation indicates Ic is at maximum level (saturated), whereas vce saturation (Max) indicates there is no saturation.For high efficiency, the continuous collector voltage must be kept at 500mA.Keeping the emitter base voltage at 6V can result in a high level of efficiency.According to definition, current rating describes the maximum current a fuse can carry indefinitely without deteriorating too much, and this device has no current rating.There is a transition frequency of 50MHz in the part.Single BJT transistor can be broken down at a voltage of 300V volts.When collector current reaches its maximum, it can reach 500mA volts.

MMBTA42-7 Features
the DC current gain for this device is 40 @ 30mA 10V
a collector emitter saturation voltage of 500mV
the vce saturation(Max) is 500mV @ 2mA, 20mA
the emitter base voltage is kept at 6V
the current rating of this device is 200mA
a transition frequency of 50MHz


MMBTA42-7 Applications
There are a lot of Diodes Incorporated
MMBTA42-7 applications of single BJT transistors.


Inverter
Interface
Driver
Muting