PN Junction Diode Unit
Product Code : SCL-PLE-11794
The StemAids PN Junction Diode Unit is a fundamental semiconductor workstation engineered for the empirical study of unidirectional current flow and the physics of the depletion region. Optimized for Secondary and University-level physics, this unit features a high-grade Silicon or Germanium diode mounted on a non-conductive, high-impact base with integrated safety terminals. Manufactured to ISO 9001:2015 standards, it facilitates the quantification of barrier potential and the verification of V−I characteristics within institutional laboratory environments.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Diode Type |
Silicon Junction Diode (e.g., 1N4007) or Germanium (optional) |
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Mounting Interface |
High-impact, insulated base with schematic diagram overlay |
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Terminal Access |
Two 4mm safety-shrouded sockets (Anode and Cathode) |
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Carrier Dynamics |
Optimized for studying Forward Bias and Reverse Bias conditions |
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Circuit Visibility |
High-contrast silkscreened diode symbol for intuitive polar orientation |
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Maximum Ratings |
Heat-stabilized for continuous V-I plotting within standard lab currents |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Carrier Interface: Facilitates student visualization of the movement of holes and electrons across the junction, supporting Solid State Physics Module 101.
- Characteristic Quantification: Enables the physical study of electrical conductance, allowing learners to apply biasing voltages to plot the V−I curve and identify the "Knee Voltage" (7V for Silicon).
- Depletion Region Analysis: Supports the analysis of how the depletion layer width changes under different biasing conditions, demonstrating the "valve" action of the diode.
- Rectification Evaluation: Allows students to evaluate the diode's performance in converting AC to DC, serving as the building block for half-wave and full-wave rectifier experiments.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring anti-static (ESD) shielding and individual shock-absorbing cells to protect the delicate silicon crystal from mechanical vibration.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a datasheet specifying peak inverse voltage (PIV) and maximum forward current (If).
- Durability: Tropicalized design featuring nickel-plated terminals to prevent contact oxidation, ensuring consistent electrical readings in high-humidity laboratory climates.
Direct OEM Sourcing Advantages
Procuring the StemAids PN Junction Diode Unit directly ensures vertical manufacturing control:
- In-House Component Screening: Every diode is batch-tested for forward voltage drop (Vf) consistency, ensuring uniform experimental data across all student workstations.
- Schematic Accuracy: Direct oversight of the base printing ensures that the Anode (+) and Cathode (−) are clearly and permanently marked, reducing accidental reverse-biasing errors.
- Direct Factory Spares Availability: Guaranteed availability of matching Zener diodes, Transistor units, and variable DC power supplies to provide a complete "Semiconductor Lab Kit."
- Manufacturing Control: Direct oversight of the internal soldering process ensures low parasitic resistance, which is critical for measuring the precise exponential rise of the forward current.
