Zener Diode Experiment Circuit Board Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12452
Jlab Export is a leading Zener Diode Experiment Circuit Board Manufacturer,and suppliers in India
Zener Diode Experiment Circuit Board (code EL-PL-12452), model JL431/112, is a panel apparatus for plotting the forward and reverse V–I characteristics of a zener diode. It carries a 0–15 V DC regulated supply rated at 150 mA, two round meters for voltage and current, and three zener diodes mounted behind the panel. The board is manufactured by JLab at Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL431/112 |
| Experiment | Forward and reverse V–I characteristics of a zener diode |
| Power supply | 0–15 V DC regulated, 150 mA |
| Meters | Two round meters, for voltage and current |
| Zener diodes | 3, mounted behind the panel |
| Connections | Supply, meters and diodes brought out to 4 mm sockets |
| Quality check | Each circuit board is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-PL-12452 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Wiring the Circuit from the Sockets
Because the supply, both meters and the diodes are brought out to 4 mm sockets, students wire the circuit themselves. The voltage meter goes across the diode and the current meter in series with it. For the forward run the anode is taken to the positive terminal; for the reverse run the diode connections are swapped so that its cathode is positive.
What the Two Curves Show
In forward bias the zener behaves like an ordinary silicon diode: the current stays tiny until the junction barrier is overcome, then climbs steeply. In reverse bias only a very small leakage current flows until the voltage reaches the zener (breakdown) voltage. Beyond that point the current rises sharply while the voltage across the diode hardly changes, which is why zener diodes are used to hold a voltage steady. The ratio ΔV/ΔI on this part of the curve gives the dynamic resistance; raise the voltage in small steps here, as the current changes quickly.
Related Semiconductor Items
- Zener Diode — zener diode mounted on a board, range 0–10 V.
- PN Junction Diode — diode kit with two meters and an inbuilt supply, for forward and reverse study.
- Banana Plug Clip Leads — 4 mm banana plug leads in red and black.
For the rest of the electronics practical set, see Physics Lab.
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Last updated: 26 October 2026
