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Constantan Wire 34 SWG (0.23mm) – 200gm Precision Resistance Wire

The Constantan Wire 34 SWG (0.23mm) – 200gm is a high-quality resistance wire widely used in laboratories, educational institutions, and electrical applications across Bangladesh. Made from a copper-nickel alloy, constantan wire offers stable resistance and excellent temperature performance.

With a thickness of 34 SWG (0.23mm), this wire is suitable for precision experiments, resistance measurement setups, heating elements, and physics lab demonstrations. Its consistent resistivity makes it ideal for controlled electrical testing and research purposes.

This 200gm coil ensures sufficient length for multiple projects, making it a cost-effective choice for students, teachers, engineers, and technicians.

➤ Key Features:

✹ Constantan alloy resistance wire
✹ Gauge: 34 SWG (0.23mm diameter)
✹ Weight: 200gm coil
✹ Stable and uniform resistance
✹ Good temperature stability
✹ Suitable for lab and electrical applications
✹ Durable and easy to handle

⚙ Applications:

✹ Physics laboratory experiments
✹ Resistance and conductivity testing
✹ Electrical research projects
✹ Heating elements
✹ Educational demonstrations

⚙ Technical Specifications:

✹ Material: Copper-Nickel Alloy (Constantan)
✹ Wire Gauge: 34 SWG
✹ Diameter: 0.23mm
✹ Coil Weight: 200gm
✹ Resistivity: Approx. 49 × 10⁻⁸ Ω·m (at 20°C)
✹ Temperature Coefficient: ~0.00002 /°C (very low)
✹ Max Operating Temperature: ~400°C
✹ Coil Length: Approx. 80–100 meters (model dependent)
✹ Color: Silver metallic
✹ Application: Lab experiments, electrical testing, heating elements, research

The 34 SWG (0.23mm) 200gm Constantan Wire is a reliable and practical solution in Bangladesh for professional, educational, and laboratory use where precise and stable resistance is required.