Digital PN Junction Diode
Product Code : SCL-EAE-11360
The apparatus provides an organised platform for applying a controlled DC input to a PN junction diode. Students can adjust the operating conditions, observe corresponding voltage and current values, record the readings and prepare forward- and reverse-bias characteristic curves.
The digital display format removes the need to interpret an analogue pointer scale and supports direct reading during practical work. The panel arrangement keeps the diode section, controls, terminals and measurement displays accessible for demonstrations. Display type, measuring ranges, enclosure material and electrical ratings require ation before publication or procurement.
Key Features
Digital measurement display: Presents voltage and current readings directly for convenient observation and recording.
Forward-bias experiment: Enables students to examine diode conduction as the applied forward voltage increases.
Reverse-bias experiment: Supports measurement of reverse-bias behaviour within the verified operating limits.
V-I curve analysis: Generates paired voltage and current readings for plotting diode characteristics.
Organised training panel: Keeps controls, terminals and circuit sections accessible during laboratory work.
Hands-on semiconductor learning: Connects PN junction theory with measurable circuit behaviour.
Classroom demonstration value: Allows teachers to explain polarity, biasing and current direction step by step.
Technical Specifications
|
Specification |
Detail |
|
Product Name |
Digital PN Junction Diode |
|
Brand |
Lab Exports |
|
Product Category |
Physics Laboratory Equipment – Electrical and Electronics Trainer |
|
Intended Users |
Schools, colleges, polytechnics, technical institutes, physics teachers and electronics students |
|
Experiment Principle |
Forward- and reverse-bias V-I characteristics of a PN junction diode |
|
Measurement Method |
Integrated digital voltage and current indication |
Applications / Uses
Measuring forward-bias diode voltage and current.
Observing reverse-bias behaviour within the specified range.
Plotting forward and reverse V-I characteristic curves.
Identifying the diode conduction or knee-voltage region.
Teaching anode, cathode, polarity and semiconductor biasing.
Supporting practical semiconductor physics and introductory electronics courses.
Complementing electrical and electronics laboratory equipment.
Supporting complete physics laboratory installations.
How to Use the Digital PN Junction Diode
Place the apparatus on a stable, dry laboratory bench.
Identify the digital displays, diode terminals, controls and bias sections.
Set each voltage or current control to its minimum position.
Connect the diode for forward bias using the supplied circuit diagram.
Switch on the apparatus and increase the input gradually.
Record each corresponding voltage and current reading.
Return the controls to minimum and switch off the apparatus.
Reconnect the circuit for reverse bias and repeat the measurements within the rated limits.
Plot current against voltage and compare both characteristic curves.
Safety note: Change connections only when power is switched off. Do not exceed the verified voltage, current or diode ratings. Use the apparatus under qualified teacher or laboratory supervision.
Care & Maintenance
Clean the panel and displays with a soft, dry cloth.
Keep liquids, conductive debris and damaged leads away from the terminals.
Return adjustable controls to minimum after every experiment.
Store the apparatus in a dry, dust-free cabinet away from heat and impact.
Why Choose Lab Exports
Lab Exports manufactures, supplies and exports scientific laboratory instruments, experiment setups, science kits, mathematics kits, didactic models and STEM equipment. Its catalogue supports schools, colleges, universities and technical training institutions. Institutional buyers can electrical ranges, accessories, branding, packing and export requirements through an itemised technical quotation before ordering.
Frequently Asked Questions
What is a Digital PN Junction Diode Apparatus used for?
It is used to measure the relationship between diode voltage and current under forward- and reverse-bias conditions and to plot the resulting V-I curves.
How is a digital diode apparatus different from an analogue model?
A digital model presents measured values numerically rather than through pointer scales. Exact display resolution and accuracy depend on the supplied configuration.
What happens when a PN junction diode is forward biased?
Forward bias reduces the junction barrier and allows increasing current after the diode enters its conduction region.
What happens under reverse bias?
Only a small reverse current normally flows within the safe operating region. The verified reverse-voltage limit must not be exceeded.
Can students plot a diode V-I characteristic with this apparatus?
Yes. Students record corresponding digital voltage and current readings and plot current against voltage for both bias conditions.
Are connecting leads and an experiment manual included?
The supplied accessories have not been verified. the complete kit contents in the final quotation.
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