Description
Welwyn / TT Electronics W21-R22J Wirewound Resistors – Through Hole 3Watt 0.22 ohm 5%
SPECIFICATIONS
Part #: W21R22J
Part Category: Resistors
Manufacturer: Welwyn Components, Ltd.
Description: RES,AXIAL,WIREWOUND,220M OHMS,100WV,5% +/-TOL,75PPM TC
REACH Compliant Yes
EU RoHS Compliant Yes
Status Active
Resistor Type FIXED RESISTOR
Construction All-Welded
Lead Diameter 0.8 mm
Lead Length 22.8 mm
Manufacturer Series W21(5%TOL)
Operating Temperature-Min -55.0 Cel
Operating Temperature-Max 200.0 Cel
Product Category: Wirewound Resistors – Through Hole
RoHS: RoHS Compliant Details
Termination Style: Axial
Resistance: 0.22 Ohms
Power Rating: 3 W
Tolerance: 5 %
Temperature Coefficient: 75 PPM / C
Operating Temperature Range: – 55 C to + 350 C
Brand: Welwyn Components / TT Electronics
Case Diameter: 5.6 mm
Case Length: 12.7 mm
Lead Diameter: 0.8 mm
Packaging: Ammo Pack
Product: Power Resistors Wirewound Vitreous Enamel
Series: W20
Factory Pack Quantity: 1000
Type: Vitreous Enamelled Wirewound Resistors
Voltage Rating: 100V
WELWYN W21-R22J 3W AX .22 Ohms 3W Vitreous Enamelled Wirewound. A high purity ceramic substrate is assembled with interference fit end caps to which are
welded the termination wires. The resistive element is wound on the substrate and welded to the caps; the vitreous enamel protective coating is then applied.
Terminations
Material: Copper clad steel wire, nickel plated and solder-coated.
Strength: The terminations meet the requirements of IEC 68.2.21.
Solderability: The terminations meet the requirements of IEC 115-1,– Clause 4.17.3.2.
Length: W23’s and W24’s are not supplied on tape. Minimum lead length is 30 mm.
Marking: The resistors are legend marked with type reference, resistance value and tolerance. Values are
Welwyn Components designs and manufactures a full portfolio of resistor technologies for industrial, defence, automotive and medical sectors.
WELWYN W21-R22J 3W AX .22 Ohms 3W
Vitreous Enamelled Wirewound
A high purity ceramic substrate is assembled with interference fit end caps to which are
welded the termination wires. The resistive element is wound on the substrate and welded to
the caps; the vitreous enamel protective coating is then applied.
Terminations
Material
Copper clad steel wire, nickel plated and solder-coated.
Strength
The terminations meet the requirements of IEC 68.2.21.
Solderability
The terminations meet the requirements of IEC 115-1,– Clause 4.17.3.2.
Length
W23’s and W24’s are not supplied on tape. Minimum lead length is 30 mm.
Marking
The resistors are legend marked with type reference, resistance value and tolerance. Values are
CECC approved
|
Dimensions (mm) and Weight (g) |
T
L max
D max
f min
d nom
Wt.nom
|
W21 |
12.7
5.6
22.75
0.8
1
CC 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
|
Electrical Data |
Commercial
W21
Power rating at 25°C
watts
3.0
Resistance range at
1% tolerance
ohms
1R to 10K
2% tolerance
ohms
0R5 to 10K
5% tolerance
ohms
0R1 to 10K
TCR (-55° to 200°C)
pp/°C
Approved BS CECC 40-201-002
Style
JB
Power rating at 25°C
watts
2.9
Power rating at 70°C
watts
2.5
Resistance range at 1% tolerance
ohms
1R to 10K
2% tolerance
ohms
0R5 to 10K
5% tolerance
ohms
0R1 to 10K
TCR (-55° to 200°C)
ppm/°C
≥
Applicable to commercial and approved ranges
Limiting element voltage
volts
100
Standard values
Thermal impedance
°C/watt
88
Ambient temperature range
°C
Manufacturer Part Number: W21-R22J
Manufacturer: Electronic Components
