New 25w watt 4 ohm Type 270 Vitreous Wire Wound Resistor  0200N by Ohmite

Condition: NEW

Value: 4 Ohm, 5%

Wattage: 25

Series: 270

F e a t u r es
• Terminals suitable for soldering or bolt connection
• High wattage applications
• Rugged lead free vitreous enamel coating
• Flame resistant coating
• All-welded construction

S peci f i c a t i o n s
Material Coating: Lead free vitreous enamel. Very large models (750
watts and up) are supplied in Silicone Ceramic. Also available in low-cost Centohm coating; Consult factory.

Core: Tubular ceramic.

Terminals: Solder coated radial lug. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu

Derating: Linearly from 100% @ +25°C to 0% @ +350°C.

Electrical Tolerance: ±5% 1Ω and over (J) ±10% under 1Ω (K)

Power rating: Based on 25°C free air rating.

Overload: 10 times rated wattage for 5 seconds.

Temperature coefficient: 1 to 20Ω: ±400 ppm/°C. Above 20Ω: ±260 ppm/°C

Dielectric withstanding voltage: 1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 to 225 watt rating (Measured from terminal to mounting bracket)

To calculate max. amps: use the formula √P/R