Welwyn 12Ω Wire Wound Resistor 3W ±5% W21-12RJI

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Subtotal (1 bag of 5 units)*

£4.86

(exc. VAT)

£5.83

(inc. VAT)

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Last RS stock
  • 65 left, ready to ship
  • Final 45 unit(s) shipping from 09 October 2025
Units
Per unit
Per Bag*
5 - 95£0.972£4.86
100 - 245£0.626£3.13
250 - 495£0.596£2.98
500 +£0.564£2.82

*price indicative

RS Stock No.:
139-3422
Mfr. Part No.:
W21-12RJI
Brand:
Welwyn
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Brand

Welwyn

Resistance

12Ω

Power Rating

3W

Tolerance

±5%

Technology

Wire Wound

Series

W20

Maximum Operating Temperature

+200°C

Temperature Coefficient

±200ppm/°C

Minimum Operating Temperature

-55°C

COO (Country of Origin):
IN
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

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