Welwyn 390Ω Wire Wound Resistor 3W ±5% W21-390RJI
- RS stock no.:
- 139-3429
- Mfr. Part No.:
- W21-390RJI
- Manufacturer:
- Welwyn
195 Available from UK/Europe in 4–6 working days for collection or delivery to major cities (Heavy, hazardous or lithium product excluded. Delivery T&C's apply)
Not Available for premium delivery
Added
Price (Excl VAT) Each (In a Bag of 5)
R 22,846
(exc. VAT)
R 26,273
(inc. VAT)
| Units | Per unit | Per Bag* |
| 5 - 95 | R 22,846 | R 114,23 |
| 100 - 245 | R 22,274 | R 111,37 |
| 250 - 495 | R 21,606 | R 108,03 |
| 500 + | R 20,742 | R 103,71 |
| *price indicative | ||
- RS stock no.:
- 139-3429
- Mfr. Part No.:
- W21-390RJI
- Manufacturer:
- Welwyn
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- BB
Product Details
As there is a maximum temperature to which the wire can rise during an overload, if the resistor is already dissipating heat, then the pulse energy applied should be less than that allowed by the graph. It should also be noted that for repetitive pulses the average power dissipated must not exceed the continuous power rating of the resistor.
CECC approved
Suitable for harsh environments
Impervious lead free vitreous enamel coating
Overload characteristics ideal for protection circuits
High stability and reliability
High power dissipation for size
Suitable for harsh environments
Impervious lead free vitreous enamel coating
Overload characteristics ideal for protection circuits
High stability and reliability
High power dissipation for size
Specification
Attribute | Value |
|---|---|
| Resistance | 390Ω |
| Power Rating | 3W |
| Tolerance | ±5% |
| Technology | Wire Wound |
| Series | W20 |
| Maximum Operating Temperature | +200°C |
| Temperature Coefficient | ±200ppm/°C |
| Minimum Operating Temperature | -55°C |