NTE 25W239, 3.9K (3,900) Ohm 25 Watt Wirewound Ceramic Power Resistor.

The picture shows a sample of what the resistor will look like, though the color may vary.

Features:

• Rated Value: 3.9K (3,900) Ohms @ 25 Watts
• Tolerance: 5%
• Maximum Voltage: 800 Volts
• Operating Temperature (Topr): 55 to +155C
• Temperature Coefficient (PPM/C): 300
• ResistorType: Wire Wound CeramicPowerResistor
• Terminals: Solder Leads

Dimensions:

• Length: 2.50″ (63.5mm)
• Width: 0.50″ (12.5mm)
• Height: 0.50″ (12.5mm)
• Lead Length: 1.50″ (38.1mm)
• Lead Diameter: 0.040″ (1.0mm)