• About
Home » Our Product  » Physics  » Electricity & Electromagnetism » UJT Characteristics Apparatus

UJT Characteristics Apparatus

UJT Characteristics Apparatus

Product Code : SCL-EE-12439

Quick Answer: The UJT Characteristics Apparatus is an electronics trainer for plotting the emitter characteristics of a unijunction transistor and identifying its peak point, valley point and negative resistance region.

Last updated: October 2026

Key Features

  • Records emitter voltage against emitter current
  • Identifies peak voltage, peak current, valley voltage and valley current
  • Shows the negative resistance region, where emitter current rises as emitter voltage falls
  • Supports teaching of intrinsic stand-off ratio, triggering and relaxation oscillators

About This Product

Students connect the circuit to the approved UJT diagram, set the emitter and base supply controls to their lowest safe values and raise the emitter voltage gradually, recording emitter voltage and current. Plotting the readings reveals the peak and valley points and leads into how the UJT operates as a triggering device. It suits electronics and power electronics modules in physics and engineering laboratories.

Frequently Asked Questions

Q1. What is the negative resistance region?
It is the part of the emitter characteristic, between the peak and valley points, where emitter current increases while emitter voltage falls.

Related: Electricity & Electromagnetism, FET Characteristics Apparatus, SCR Characteristics Apparatus.

For a quotation on the UJT Characteristics Apparatus, contact School Equipments India.

   
Related Products
Alpha Central Terminal - Yellow
Alpha Central Terminal - Yellow
Laser Ray Box
Laser Ray Box
Shunts for Basic Student and Centre-Zero Meters - 0 to 100mA a.c.
Shunts for Basic Student and Centre-Zero Meters - 0 to 100mA a.c.
Filter Paper
Filter Paper
Ring Launcher Model
Ring Launcher Model
Component Investigations Board
Component Investigations Board
Electromagnetics Kit Spares Mild Steel Yokes
Electromagnetics Kit Spares Mild Steel Yokes
Simple Circuit Module Mounted Variable Resistor
Simple Circuit Module Mounted Variable Resistor
Supply of UJT Characteristics Apparatus from to Finland, France, Tanzania, Thailand, Sri Lanka, Congo, Costa Rica, Ivory Coast, Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, United Arab Emirates (UAE, Dubai), United Kingdom (London), United States, Uruguay, Uzbekistan, Vanuatu, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burma Myanmar, East Timor, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia (Addis Ababa), Fiji, Burundi, Cambodia, Cameroon, Canada, Cape Verde, Central African Republic, Chad, Chile, Colombia. Math Teaching Kit suppliers in Luxembourg, Macedonia, Madagascar, Malawi (Lilongwe), Malaysia (Kuala Lumpur), Maldives, Mali, Malta, Marshall Islands, Mauritania, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Comoros, Congo. Math Teaching Kit manufacturers in Dominican Republic, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, Indonesia, Iran, Iraq, Niger, Nigeria (Abuja), Norway, Oman, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines (Manila), Poland, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan, Kenya (Nairobi), Kiribati, Korea, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Mauritius, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Portugal, Qatar, Romania, Russia, Rwanda (Kigali). Math Teaching Kit exportets to Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Sudan, Spain, Sudan, Suriname, Swaziland, Sweden, Switzerland, Syria, Tajikistan, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda (Kampala), Ukraine, Venezuela, Vietnam, Yemen , Zambia (Lusaka), Zimbabwe

Appliances

Biology

Physics

Environmental Science

Lab Equipment

Glassware, Plastics & Ceramics

Chemistry

Primary Science

General Lab Equipment

    Educational

    Maths

      Science

        Office Address

        Works:
        2993, HSIIDC Industrial Estate,
        Ambala Cantt 133006, Haryana
        +91-9416224803

        [email protected]

        Quick Links

        Follow Us

        ©2026 School Equipments India All Right Reserved

        School Equipments India has regular exports of Educational Lab Equipment manufacturer , School Lab Equipment Manufacturer in India , Scienntific Lab Equipment manufacturer in India ,Laboratory Equipment Manufacturer in India , Pharma Lab Instruments , Laboratory Equipment , Analytical Lab Equipment Manufacturers , School lab , Math Lab , Electronics Lab Trainer, Microscopes , Engineering Lab Equipment,Engineering Educational Equipments , Electronic Lab Equipments , Mechanical Engineering Lab Equipment Manufacturer in India,School Lab Equipments Manufacturers ,Educational Lab Equipments Manufacturers, Educational Lab Equipments , Maths Lab Kit Instruments, Physics Lab Instruments,Lab Glassware/a>,Scientific Lab Glassware/a>,Scientific Lab Instruments, Medical Monitoring System and Physiotherapy Equipment for Schools, Colleges, University & Research Labs. Educational Lab Instruments for the following countries: India, Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, Azerbaijan, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burma/ Myanmar, Burundi, Cambodia, Cameroon, Canada, Cape Verde, Central African Republic, Chad, Chile, Colombia, Comoros, Congo, Congo, Costa Rica, Cote d'Ivoire/Ivory Coast, Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica, Dominican Republic, East Timor, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia (Addis Ababa), Fiji, Finland, France, Gabon, Gambia, Georgia, Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hungary, Iceland, Indonesia, Iran, Iraq, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakstan, Kenya (Nairobi), Kiribati, Korea, North, Korea, South, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, Macedonia, Madagascar, Malawi (Lilongwe), Malaysia (Kuala Lumpur), Maldives, Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, New Zealand, Nicaragua, Niger, Nigeria (Abuja), Norway, Oman, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines (Manila), Poland, Portugal, Qatar, Romania, Russia, Rwanda (Kigali), Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa, San Marino, Sao Tome and Principe, Saudi Arabia, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Sudan, Spain, Sri Lanka, Sudan, Suriname, Swaziland, Sweden, Switzerland, Syria, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Tuvalu, Uganda (Kampala), Ukraine, United Arab Emirates (Dubai), United Kingdom (London), United States, Uruguay, Uzbekistan, Vanuatu, Venezuela, Vietnam, Yemen , Zambia (Lusaka), Zimbabwe