PN Junction Diode Characteristics Apparatus
Product Code : SCL-EAE-11363
The apparatus provides a structured platform for applying a controlled electrical input to a PN junction diode. Its two-meter configuration allows learners to observe the measurements required for the experiment while changing the diode’s bias condition. The exact function and range of each meter should be ed before ordering.
During practical work, students record corresponding voltage and current readings and plot a characteristic curve. This hands-on process connects semiconductor theory with measurable circuit behaviour. The apparatus is suitable for classroom demonstrations, laboratory exercises and introductory electronics training.
Key Features
Two-meter configuration: Supports direct observation of the electrical readings required for diode-characteristic experiments.
Forward-bias study: Helps students examine how diode current changes as forward voltage increases.
Reverse-bias study: Supports observation of reverse current within the ed operating limits.
V-I curve plotting: Produces paired readings for preparing forward- and reverse-bias characteristic graphs.
Organised experiment layout: Keeps the diode section, terminals and operating controls accessible during practical work.
Hands-on semiconductor learning: Connects PN junction theory with observable electrical behaviour.
Classroom demonstration value: Helps instructors explain polarity, biasing, current direction and diode conduction.
Technical Specifications
|
Specification |
Detail |
|
Product Name |
PN Junction Diode Characteristics Apparatus – 2 Meter |
|
Brand |
Lab Exports |
|
Product Category |
Physics Laboratory Equipment – Semiconductor and Electronics Trainer |
|
Intended Users |
Schools, colleges, polytechnics, technical institutes, teachers and electronics students |
|
Experiment Principle |
Forward- and reverse-bias V-I characteristics of a PN junction diode |
|
Meter Configuration |
Two integrated meters; functions and ranges to be ed |
What's Included in the Kit
1 × PN Junction Diode Characteristics Apparatus – 2 Meter
2 × Integrated measuring meters
Integrated PN junction diode experiment section
Biasing and measurement controls
Patch cords or connecting leads: before ordering
Experiment instructions: before ordering
Applications / Uses
Plotting the forward-bias V-I characteristic of a PN junction diode.
Observing diode behaviour under reverse bias.
Identifying the forward-conduction or knee-voltage region.
Teaching anode, cathode, polarity and conventional current direction.
Preparing observation tables from measured voltage and current values.
Supporting semiconductor physics and introductory electronics practicals.
Complementing electrical and electronics laboratory equipment.
How to Use the PN Junction Diode Characteristics Apparatus – 2 Meter
Place the apparatus on a stable, dry laboratory bench.
Identify the diode terminals, meters, bias controls and measurement points.
Set all adjustable controls to their minimum positions.
Connect the diode in forward bias according to 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.
Configure the circuit for reverse bias and repeat the measurements within the rated limits.
Plot current against voltage and compare the two characteristic curves.
Safety note: Change connections only when the power is switched off. Do not exceed the ed meter, supply or diode ratings. The apparatus should be used under qualified teacher or laboratory supervision.
Care & Maintenance
Clean the panel and meter covers with a soft, dry cloth.
Keep liquids, loose wire strands and conductive debris away from the terminals.
Return adjustable controls to minimum after each experiment.
Store the apparatus and leads in a dry, dust-free cabinet.
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 product range supports schools, colleges, universities and technical institutes. Institutional buyers can measuring ranges, supplied accessories, branding, packing and export requirements through an itemised quotation before procurement.
Frequently Asked Questions
What is a two-meter PN junction diode apparatus used for?
It is used to observe diode voltage and current and to plot forward- and reverse-bias V-I characteristic curves.
Why does the apparatus have two meters?
The two-meter arrangement allows learners to observe the electrical quantities needed for the experiment. The function and range of each supplied meter should be ed before ordering.
What happens when a PN junction diode is forward biased?
Forward bias reduces the junction barrier. Diode current increases significantly after the device enters its conduction region.
What happens when the diode is reverse biased?
Only a small reverse current normally flows within the safe operating region. The ed reverse-voltage limit must not be exceeded.
Can students plot a diode V-I characteristic curve?
Yes. Students record corresponding voltage and current readings, then plot current on the vertical axis against voltage on the horizontal axis.
Are patch cords and experiment instructions included?
The supplied accessories are not publicly specified. the patch cords, instructions and complete kit contents in the final quotation.
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