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Zener Diode
Zener Diode (Product Code: SCL-435/114) is a board-mounted semiconductor diode used to study reverse breakdown and voltage regulation in school and college physics laboratories. Students and lab instructors use it for diode characteristic practicals, and it is listed with a working range of 0–10 V. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, as a routine item of physics practical equipment for CBSE and other school boards.
Specifications
| Parameter | Detail |
|---|---|
| Component | Zener diode |
| Mounting | Mounted on a board |
| Range | 0–10 V |
| Product code | SCL-435/114 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Zener Diode Used For?
A Zener diode conducts like an ordinary diode in the forward direction, but it is designed to work in reverse bias once its breakdown voltage is reached, holding the voltage across it almost constant. In the physics lab this makes it the standard component for plotting the reverse characteristic curve and for showing how a simple voltage regulator works. Having the diode mounted on a board makes the small part easier to handle and wire into a circuit than a loose component.
A typical set-up connects the board in reverse bias through a series resistor to a DC source, with a voltmeter across the diode and a milliammeter in series. Students raise the supply in small steps and note the point where current starts to climb sharply. Always keep a series resistor in the circuit, because above breakdown the current is limited only by the external circuit.
What to Specify When Ordering
- Quantity: one Zener Diode board per student group or bench, plus spares.
- Range: check that the listed 0–10 V range suits the experiment in your practical manual.
- Board only or full set-up: say whether you need just this Zener Diode or the complete Zener Diode Experiment Circuit Board.
- Instruments: list any voltmeters, milliammeters or DC sources you want quoted alongside it.
Supplier
Jain Scientific Equipments Private Limited, which trades as ScienceLab, supplies the Zener Diode from Ambala, Haryana, to schools, colleges, training institutes and dealers in India and international markets. Semiconductor parts like this are usually ordered together with meters, power sources and connecting leads, so one enquiry can cover a complete diode bench. Read more on the ScienceLab company profile.
Related Physics Lab Equipment
These items are used with a Zener diode when setting up the reverse characteristic experiment:
- Zener Diode Experiment Circuit Board — a ready experiment board for plotting the full Zener curve.
- PN Junction Diode — compare an ordinary junction diode's reverse behaviour with Zener breakdown.
- Voltmeter — reads the voltage across the diode at each step.
- Milliammeter — measures the small reverse current as breakdown approaches.
- Battery Eliminator 12 Volt — a mains-operated DC source for powering the test circuit.
Browse the full Physics Lab range for other practical apparatus.
Frequently Asked Questions
What is the range of this Zener Diode?
The Zener Diode (SCL-435/114) supplied by ScienceLab is listed with a range of 0–10 V. Check this against the circuit in your practical manual, and tell us before quoting if your experiment needs a different working range.
Is the Zener Diode supplied mounted on a board?
Yes. This Zener Diode comes mounted on a board, which makes the small component easier to handle, label and connect in a student circuit than a loose diode with bare wire leads.
What experiment is the Zener Diode used for?
The Zener Diode is mainly used to draw the reverse characteristic curve and find the reverse breakdown voltage, a standard Class 12 physics practical. It also demonstrates the principle of a simple voltage regulator in electronics lessons.
What else do I need to use the Zener Diode?
To use the Zener Diode you need a DC source, a series resistor, a voltmeter, a milliammeter and connecting wires. List these in your enquiry and ScienceLab can include them in the same quotation for the whole bench.
Who supplies the Zener Diode?
The Zener Diode is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, which also offers the complete Zener Diode Experiment Circuit Board and the meters used with it, so a diode bench can be sourced from one company.
What should a quotation request for the Zener Diode include?
A quotation request for the Zener Diode should give the product code SCL-435/114, the quantity, the delivery location and any meters or power sources you want added. Send it through the contact page or the enquiry cart.
Request a Quote
To order the Zener Diode, send the quantity and delivery location through the ScienceLab contact page, or add it to the enquiry cart together with the other physics lab items you need.
Last updated: 24 September 2026
