SQMR7220RJ

The SQ series Power Wire-wound Resistor offers wire or power oxide film elements. This resistor is wound or deposited on a fine non-alkali ceramic core then embodied in a ceramic case and sealed with inorganic silica filler. This design provides a resistor with high insulation resistance, low surface temperature, excellent TCR and entirely fire proof construction. This resistor is ideally suited to a range of areas and efficient thermal performance is important design criteria. Metal film cores adjusted by laser spiral are used where the resistor value is above that suited to wire. Similar performance is obtained although short time overload is slightly derated.

• Bracketed types available
• Custom designs welcome
• Inorganic flame-proof construction
• 300ppm/°C Stable TCR
• -55 to 250°C Operating temperature range
• High Power Resistor