Characteristics of Tunnel Diodes Manufacturer,Supplier and Exporter in India
Product Code : SCL-EELE-12124
Indian Lab Suppliers supplies the Characteristics of Tunnel Diodes (Product ID: 12124) as part of its electronics engineering lab equipment range. It is a self-contained board for plotting the V-I characteristic of a tunnel diode, including its negative-resistance region.
Quick Answer
Heavy doping makes a tunnel diode’s junction so thin that electrons tunnel through it, so the forward current first rises to a peak, falls to a valley as voltage increases (negative resistance), then rises again like an ordinary diode. A 0–2 V DC, 20 mA continuously variable regulated supply drives the diode, while a 3½-digit DC voltmeter (0–2 V) and ammeter (0–20 mA) read each point so students can find the peak and valley currents and voltages. It runs on 230 V ±10%, 50 Hz and patch cords are supplied. The tunnel diode type and quantity should be confirmed at quotation.
Key Specifications
| Parameter | Detail |
|---|---|
| Power supply | 0–2 V DC, 20 mA, continuously variable, regulated |
| Voltmeter | 3½-digit DC, 0–2 V |
| Ammeter | 3½-digit DC, 0–20 mA |
| Device | Tunnel diode(s) |
| Mains | 230 V ±10%, 50 Hz |
| Size / weight | 340 x 125 x 210 mm; about 1.35 kg |
| Accessories | 4 mm stackable patch cords, 50 cm |
Where This Is Used
Used in B.Sc. physics and electronics labs studying special-purpose diodes; ordinary junction diodes are covered by the Diode, Zener Diode and LED Characteristics (Product ID: 12085) and Diode Characteristics Trainer (Product ID: 12097). Browse the full Electronics Engineering Lab Equipment range or related Physics Lab Equipment products.
Frequently Asked Questions
What is special about a tunnel diode curve?
Between the peak and valley points the current falls as voltage rises, giving negative resistance.
What supply is used?
A 0–2 V DC, 20 mA variable supply.
Are meters included?
Yes, a digital voltmeter and a digital ammeter.
Related Categories
Electronics Engineering Lab Equipment · Physics Lab Equipment · Electronics Lab Equipment
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