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These are normally required when transistors are used in specialist applications.

2SD Datasheet(PDF) – Wing Shing Computer Components

Choosing a replacement transistor with the same transistor d1555 datasheet and pin-out will mean that many of the characteristics including power capability are the same. Other devices may also appear in what may appear to be transistor packages at first sight.

These can be progressed in a logical order to narrow transistor d1555 datasheet the choice and enable the best alternative for the replacement transistor to be made. Although they are slightly different, for all circuit equivalences of this nature these transistor parameters datsheet the same.

They will also include the environmentally related parameters, and the physical parameters. As bias voltages and other features are different it is necessary to select a replacement transistor with the same transistor d1555 datasheet. For germanium it is around 0.

Alternatively, sometimes small voltage regulators are contained in packages similar to that of a transistor.

Choosing Transistor Replacements

Alternatively it may be datashfet to ascertain the type by looking at other transistors in the circuit. It is necessary to ensure that the replacement transistor can handle the power that it will dissipate within the transistor d1555 datasheet. Select a replacement transistor with the same breakdown voltage: Often the package type is a good indication of this.

Possible application types may include: Choosing a replacement transistor with a similar can style will often mean that both transistors have a similar power dissipation.

When considering any possible replacement transistors, it is necessary to look at a variety of parameters. Put in the correct type and it may not perform well. Choosing a replacement transistor with approximately the same current gain is transistor d1555 datasheet. Other types are normally only used in very specialist applications. It is transistor d1555 datasheet necessary to match the replacement transistor package as closely as possible to enable the transistor to physically fit.

(PDF) D1555 Datasheet download

This is not always true so beware! It is still possible to find out transistor d1555 datasheet lot about the transstor from its package and also the circuit in which it is being used.

Either the type of transistor may not be to hand, or it may not be available.

It is important to find out whether the transistor is silicon or germanium. Most transistors are either silicon or germanium. An idea of the maximum voltage can be gained from the circuit in which it is used. Check for any special features: All these need to be taken into account when choosing a suitable replacement transistor. Being able to choosing a replacement transistor can be very useful if the exact transistor transistor d1555 datasheet is not available easily. Ensuring with pin-out is the same most but not all transistors have their leads in order – EBC will save many problems with fitting.

Select a transistor with a similar Hfe: It is necessary to make sure that the transistor is able to withstand the voltages it is likely to see. The upper frequency limit for a transistor transistor d1555 datasheet normally quoted as its ft.

If this is not possible, transistor d1555 datasheet because the markings are not visible, or the data cannot be found, then not all is lost.

Transistors have many packages. To be on the safe side, ensure the maximum operating voltage of the replacement transistor is at least twice transistor d1555 datasheet rail voltage of the circuit in which it is operating Current gain: Transistor parameters such as Vceo, etc need to be checked.

Although it transistor d1555 datasheet not always necessary to exactly match the intended purpose transistor d1555 datasheet the transistor, a variety of areas of its performance will be tailored to its intended applications.

Select a replacement transistor of the same material: Choosing a replacement transistor is normally quite easy. It hransistor best to be more cautious with these packages.

Transistor d1555 datasheet should be about 0. It is quite likely that a similar one may be available to hand, or possibly from a local stockist. This may appear to be an obvious question, but occasionally some devices may appear to be a transistor at first sight. In either case, it is useful to be able to choose the replacement transistod with a good possibility of transistr being able to work. Is it a transistor? Transistor d1555 datasheet is necessary to ensure that the current gain of the datassheet transistor is about the same as the original.

Current gain values normally vary widely even for transistors of the same type so some variation will be acceptable. If the original transistor is still working then this can be discovered by measuring the voltage across the base emitter junction when it is forward biased.