PNP Transistor Unit
Product Code : SCL-EAE-11264
Quick answer: The PNP Transistor Unit lets students study a PNP bipolar junction transistor in a low-voltage circuit. Using its emitter, base and collector connections with external supplies and meters, they explore biasing, the control of collector current by base current, characteristic curves and switching. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Parameter | Detail |
|---|---|
| Semiconductor | PNP bipolar junction transistor |
| Terminals | Emitter, base and collector |
| Category | Physics laboratory equipment, electronics |
Transistor type number, operating voltage, maximum current and supplied accessories are not listed on this page; email [email protected] with the house code. Power supply, meters and leads are not part of the listed supply.
How the PNP transistor experiment is done
A PNP transistor has a thin N-type base between a P-type emitter and a P-type collector. With the emitter-base junction forward biased (base slightly negative with respect to the emitter) and the collector-base junction reverse biased (collector negative), holes flow from the emitter through the base to the collector. A small base current controls a much larger collector current, IC = beta IB, which is the basis of amplification and switching. All supply polarities are the reverse of those used for an NPN transistor.
- Identify the emitter, base and collector connections on the unit.
- With the supplies at zero, connect the base and collector circuits with the polarities for a PNP device, including series meters.
- Raise the base-emitter voltage in small steps and record the base current (input characteristic).
- Hold the base current fixed, vary the collector-emitter voltage and record the collector current (output characteristic).
- Repeat for several base currents and plot the family of curves.
Key features
- PNP bipolar junction transistor for supervised circuit study
- Access to emitter, base and collector connections
- Supports biasing, input and output characteristic experiments
- Shows base current controlling collector current
- Demonstrates basic transistor switching
- Connects to standard ammeters, voltmeters or multimeters
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the PNP transistor unit at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
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The full range is in the Electrical and Electronics section of the Physics Lab range.
Frequently asked questions
How is a PNP transistor biased?
The emitter-base junction is forward biased with the base negative relative to the emitter, and the collector-base junction is reverse biased with the collector more negative. The polarities are opposite to those of an NPN transistor.
What is the difference between PNP and NPN transistors?
In a PNP transistor holes are the main current carriers and conventional current flows from emitter to collector; in an NPN transistor electrons carry the current and the supply polarities are reversed.
What is the price of the PNP transistor unit?
Prices are not published on the website. Add the PNP transistor unit to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code SCL-EAE-11264 and the quantity, to receive a quotation.
Does Lab Exports manufacture the PNP transistor unit?
Yes. Lab Exports manufactures the PNP transistor unit at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code SCL-EAE-11264.
Request a quote
Email [email protected] with the house code SCL-EAE-11264 and the quantity, or add the PNP transistor unit to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
