Welwyn 1Ω Wire Wound Resistor 3W ±5% W21-1R0JI

RS Stock No.:: 139-3418
Mfr. Part No.:: W21-1R0JI
Brand:: Welwyn

Welwyn 1Ω Wire Wound Resistor 3W ±5% W21-1R0JI

730 In stock - FREE next working day delivery available

115 available from Europe for delivery within 1 working day(s).

Added

Price Each (In a Bag of 5)

£1.41

(exc. VAT)

£1.69

(inc. VAT)

Units	Per unit	Per Bag*
5 - 45	£1.41	£7.05
50 - 95	£1.31	£6.55
100 - 245	£1.226	£6.13
250 - 495	£1.17	£5.85
500 +	£1.044	£5.22
*price indicative

RS Stock No.:: 139-3418
Mfr. Part No.:: W21-1R0JI
Brand:: Welwyn

Technical Reference

Datasheet

Legislation and Compliance

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. Using the formula below we can estimate the “equivalent” energy of a pulse applied to a resistor that is already dissipating power.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

Specifications

Attribute	Value
Resistance	1Ω
Power Rating	3W
Tolerance	±5%
Technology	Wire Wound
Series	W20
Maximum Operating Temperature	+200°C
Temperature Coefficient	±200ppm/°C
Minimum Operating Temperature	-55°C

RS Stock No.:: 139-3418
Mfr. Part No.:: W21-1R0JI
Brand:: Welwyn

Datasheet