4x Welwyn W21-270RJI Axial Wirewound Resistor, 270Ω ±5% 3W ±200ppm/°C - Welwyn
roll over the image to zoom in
£0.00
£7.49
RS 152-505
Unit Quantity:
4
Unit Type:
Unit
Resistance Rating:
270 Ω
Tolerance Rating:
±5 %
Termination Style:
Axial
Power Rating:
3 W
Welwyn
Welwyn W21 Series Axial Wirewound Resistor 270Ω ±5% 3W ±200ppm/°C
- BMUK Part # :-152-505
- BrandWelwyn
- Mfr. Part No.W21-270RJI
- You will get a pack of 4 Resistors
Product Details
W21 Series 2.5W, Axial
W21 Series are Impervious Lead-free Vitreous Enamelled Wire-wound Resistors
Overload characteristics ideal for protection circuits
High stability and reliability
High power dissipation for size
Overload characteristics ideal for protection circuits
High stability and reliability
High power dissipation for size
Vitreous Enamel Axia and Radial - 2.5 to 50W
A range of high power resistors in small body sizes suitable for use in harsh environments. Their high stability and reliability make them particularly suitable for use in protection circuits.,The resistance wire element is wound onto a high purity ceramic substrate and employs an all welded cap and lead method of construction giving considerable strength and resistance to damage. The vitreous enamel protective coating is resistant to all normal PCB cleaning solvents.Application note. Terminations should not be bent closer than 1.5mm from the body. Recommended minimum bend radius is 1mm. For full rated power dissipation terminations should not be soldered closer than 4mm from the body.When cold, vitreous enamel has excellent insulation resistance; however the specific resistance decreases with increasing temperature. Therefore if the resistor is operating at or near maximum temperature it cannot be classed as insulating and should not be in contact with any conducting materials.
Specifications
| Resistance | 270 Ω | |
| Power Rating | 3W | |
| Tolerance | ±5% | |
| Technology | Wire Wound | |
| Series | W21 | |
| Case Style | Conformal | |
| Temperature Coefficient | ±200ppm/°C | |
| Termination Style | Axial | |
| Dimensions | 5.6 (Dia.) x 12.7mm | |
| Length | 12.7mm | |
| Diameter | 5.6mm | |
| Maximum Operating Temperature | +200°C | |
| Minimum Operating Temperature | -55°C | |
| Minimum Temperature Coefficient | -200ppm/°C | |
| Maximum Temperature Coefficient | +200ppm/°C |
