FET Characteristics Apparatus
Product Code : SCL-PLE-11841
The StemAids FET Characteristics Apparatus is a precision semiconductor workstation engineered for the empirical study of Junction Field Effect Transistors (JFETs). This apparatus allows students to investigate the unique voltage-controlled characteristics of FETs, distinguishing them from current-controlled BJTs. Manufactured to ISO 9001:2015 standards, it provides a controlled environment to quantify Drain-Source current (ID) relative to Gate-Source voltage (VGS) and Drain-Source voltage (VDS).
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Active Device |
High-reliability N-Channel JFET (e.g., BFW10 or equivalent) |
|
Regulated Power Supplies |
Two independent DC sources: VGS (0–5V Negative) and VDS (0–15V Positive) |
|
Monitoring |
3/4 Integrated High-Precision Meters (Gate Voltmeter, Drain Voltmeter, Drain Ammeter) |
|
Ammeter Range |
0–20mA (for Drain current measurement) |
|
Voltmeter Ranges |
0–5V (Gate-Source) and 0–15V (Drain-Source) |
|
Control Interface |
Precision multi-turn potentiometers for "Pinch-off" resolution |
|
Circuit Mimic |
High-contrast schematic overlay with 4mm safety-shrouded sockets |
|
ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
|
HS Code |
9023.00.00 (Demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Field-Effect Interface: Facilitates student understanding of how an electric field controls the conductivity of a semiconductor channel, supporting Advanced Electronic Circuits modules.
- Transfer Characteristics Quantification: Enables the physical plotting of IDVGS; learners apply varying negative gate voltages to identify the "Pinch-off Voltage" (Vp).
- Drain Characteristics Analysis: Supports the analysis of the "Ohmic Region" vs. the "Saturation (Pinch-off) Region"; students evaluate the point where the current levels off despite increasing VDS.
- Parameter Evaluation: Allows students to calculate and evaluate the Transconductance (gm) and Drain Resistance (rd) of the device.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant). The unit is housed in an anti-static (ESD) shielded enclosure to protect the high-impedance gate of the FET from static discharge.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and a detailed laboratory manual with experimental procedures.
- Durability: Tropicalized design featuring moisture-resistant PCBs and high-insulation panel mounting, ensuring accuracy in high-humidity climates.
Direct OEM Sourcing Advantages
Procuring the StemAids FET Characteristics Apparatus directly ensures vertical manufacturing control:
- High-Input Impedance Protection: Direct oversight of the internal layout ensures that the gate circuitry is shielded, preventing external noise from affecting the sensitive VGS
- Matched Component Selection: We select JFETs with specific Vp ranges to ensure students can observe a clear and full range of characteristics within the limits of the on-board power supplies.
- Direct Factory Spares Availability: Guaranteed availability of replacement JFETs, precision potentiometers, and monitoring meters to maximize the long-term ROI of laboratory infrastructure.
- Manufacturing Control: Direct oversight of the internal voltage regulation ensures that the supplies remain stable, which is critical for measuring the small current changes typical of FET operation.