Welwyn 150Ω Wire Wound Resistor 3W ±5% W21-150RJI

View all Through Hole Resistors
Bulk discount available

Subtotal (1 bag of 5 units)*

£6.10

(exc. VAT)

£7.30

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 175 unit(s) ready to ship
  • Plus 55 unit(s) ready to ship from another location
  • Plus 2,000 unit(s) shipping from 06 November 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
Per Bag*
5 - 45£1.22£6.10
50 - 95£1.132£5.66
100 - 245£1.06£5.30
250 - 495£1.012£5.06
500 +£0.902£4.51

*price indicative

RS Stock No.:
139-3434
Mfr. Part No.:
W21-150RJI
Brand:
Welwyn
Find similar products by selecting one or more attributes.
Select all

Brand

Welwyn

Resistance

150Ω

Power Rating

3W

Tolerance

±5%

Technology

Wire Wound

Series

W20

Temperature Coefficient

±200ppm/°C

Maximum Operating Temperature

+200°C

Minimum Operating Temperature

-55°C

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

Related links