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Picking a replacement transistor When choosing a suitable replacement transistor for use within an electronic circuit, there are several stages that must be considered when making the choice. If you don’t receive the item in 25 days, just let us know,a new package or replacement will be issued.

Datasheet archive on 19-3-2006

Covers your purchase price and original shipping. The battery tracking thyristor protector can provide better protection. Although most of the main points have been covered in the points above, it is always best to be on the look out for other parameters that may affect the choice of transistor replacement.

No abstract text available Text: Choosing a replacement transistor with the same package and pin-out will mean that many of the characteristics including power capability are the same.

The basic pre-condition for this development was the continuous improvementlighttriggering and the protection functions. It is necessary to make sure that the replacement transistor is able to operate at the required frequency. Those packages designed for mounting on heatsinks will be more variable because they can often dissipate more power dependent upon the heatsink.


Packaging should be the same as what is found in a satasheet store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag.

Choosing a replacement transistor is normally quite easy. Return it and get a full refund, or B: Often the package mm1l43 is a good indication of this.

Fortunately it is normally possible to use a replacement transistor type as there is often a considerable degree of overlap between the specifications of different types of transistor, and by looking at the basic specifications it is normally possible to choose the correct transistor replacements. It may be a field effect transistor, a Darlington transistor or even some other form of device. Previous 1 2 Items will be shipped within business days of payment.

东芝 M1L43 TO-92

Select a replacement transistor with equivalent Ft: Excellent service capabilities 4. It is often necessary to match the replacement transistor package as closely as possible to datasheeet the transistor to physically fit. Our company has our own inventory in large quantity that can meet all of your requirements and needs.

If the original transistor is still working datashet this can be discovered by measuring the voltage across the base emitter junction when it is forward biased. It is usually possible to estimate the frequency of operation. Check it can take the current: Timely product updates, keen market sense 5. This is often defined by the package in which the transistor is placed. In this way it is usually possible to find a suitable replacement transistor.

Normally days via registered air mail Total Price: High power transistors often offer lower gains – older power transistor types may be as low as 20 – 50, whereas the smaller transistors may offer gains anywhere between 50 and Check for any special features: Other devices may also appear in what may appear to be transistor packages at first sight.


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Select a replacement transistor with the same breakdown voltage: The upper frequency limit for a transistor is normally quoted as its ft.

To be m1k43 the safe side, ensure the maximum operating voltage of the replacement transistor is at least twice the rail voltage of the circuit in which it is operating Current gain: It is necessary to make sure that the transistor is able to withstand the voltages it is likely to see.

If dataeheet is not possible, either because the markings are not visible, or the data cannot be found, then not all is lost. We boast our competitive prices and short lead time. Current gain values normally vary widely even for catasheet of the same type so some variation will be acceptable. Select the same functional type of transistor: The advantages of a thyristor protector circuit over zener type protector circuits include low power dissipation, small size, and low cost.

In most cases it datashee operate satisfactorily, but occasionally there may be a problem. Choose a replacement with the same package: How To Order M1L43?