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Download the KNP3WS-120R-5 resistor datasheet, view full electrical specifications, local availability, and application guidance for students, hobbyists, and professionals in South Africa.
Access the KNP3WS-120R-5 resistor datasheet and critical technical details.
Guidance on where and how to use wirewound resistors in South African projects.
Purchase with ZAR pricing and branch collection for rapid prototyping or maintenance.
The KNP3WS-120R-5 is a through-hole, axial-lead wirewound resistor popular in educational electronics, industrial circuits, and robust prototyping environments. It provides precise resistance at 120 Ohms with a power handling of 3 Watts and tight 5% tolerance. Its wirewound construction offers reliability in power supply, snubber, current limiting, and discharge applications.
Communica supplies the KNP3WS-120R-5 resistor locally to universities, hobbyists, and engineering professionals - supporting projects where dependable passive components are essential. South African buyers benefit from ZAR pricing, VAT invoices, and rapid in-branch collection or delivery nationwide.
| Parameter | Value | Notes/Standards |
|---|---|---|
| Resistance | 120 Ohm | 5% tolerance |
| Power Rating | 3W | @ 70 degreesC ambient |
| Type | Wirewound, Axial | Lead (Pb)-free |
| Max Working Voltage | 350V | Check de-rating at higher V |
| Operating Temp. | -55 to +200 degreesC | See datasheet for curves |
| Body Size (approx.) | 16mm x 6mm dia | Axial leads |
For complete dimensions, test data, and derating curves, download the official KNP3WS-120R-5 datasheet from the manufacturer site or through Communica's part listing. Always confirm the latest datasheet version before industrial use.
Wirewound resistors provide higher pulse handling and reliability than carbon or metal film equivalents at similar power ratings. They're often a top choice for robust South African lab and field projects, especially where surges or repeated switching occur.
Suppose you need a load resistor for a 24V DC bench power supply in a university lab. What is the power dissipated by a 120Ohm resistor at 24V?
| Formula | P = V2 / R |
| Applied Voltage (V) | 24V |
| Resistance (R) | 120Ohm |
| Power (P) | 24 x 24 / 120 = 4.8W |
| Model | Tolerance | Size (LxD) | Local Stock? |
|---|---|---|---|
| KNP3WS-120R-5 | 5% | 16x6mm | Yes |
| Royal Ohm 3W-120Ohm | 5% | 16x6mm | Varies |
| Yageo SQP3-120R | 5% | 16x6mm | Often (Check stock) |
Free shipping for orders over ZAR 1,000.00.
Get a full refund if you had the product for less than 7 days.
Nationwide delivery within 2 - 4 working days.
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Verified customerGet electronic kits
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Verified customerFascinating
Verified customerWaiting time can be annoing.
Verified customerCommunica supplies semiconductors and electronic components to industries such as automotive, electrical, automation, mining, and education.
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