The Keithley 7053 is a high-current scanner card for use in Keithley scanner mainframes such as the Model 7001 and 7002. It provides 10 channels, each configured as a 2-pole Form A relay with common guard and user-removable jumpers that short unselected inputs (HI to LO). This design enables precision switching for demanding automated test applications while maintaining low contact resistance and minimal contact potential.
Technical Specifications
• Channels: 10 per card
• Contact Configuration: 2-pole Form A with common guard; unselected inputs shorted via removable jumpers
• Maximum Signal Levels:
– Source lines: 150V, 350mA, 10VA (resistive loads only)
– Sense lines: 150V, 100mA, 2VA (resistive loads only)
– General: 300V, 5A, 100VA (resistive load only)
• Contact Life: >10⁸ closures at dry circuit; >10⁶ closures at maximum signal levels; >10⁷ closures cold switching; >10⁵ closures at maximum signal levels
• Contact Resistance: <0.2Ω initial; 2Ω to rated life; <0.15Ω to rated life
• Contact Potential: <100µV per contact pair; <1mV; <1µV per contact pair with copper leads (<5 minutes after actuation)
• Actuation Time: <2ms and 10⁹Ω, 10⁹Ω, 10⁹Ω, 10⁷Ω, <150pF
• Common Mode Voltage: <150V peak and 300V peak
• Relay Drive Current: 80mA per relay typical; 35mA per channel typical for sense lines
– Key Features
• Quick disconnect screw terminal connectors; #18AWG maximum wire size
• High channel isolation exceeding 10⁹Ω with low parasitic capacitance
• Contact potential under 1µV enables precision measurement applications
• Removable jumper configuration allows voltage measurement via high input resistance
– Typical Applications
• 4-wire resistance measurements (resistors, relays, connectors, switches, RTDs)
• Semiconductor and integrated circuit testing
• Materials research and power supply testing
• Solar cell measurements and electrochemical applications
– Compatibility & Integration
Installs in Keithley scanner mainframes Models 7001 and 7002. Dimensions: 32mm H × 114mm W × 272mm L. Weight: 0.37kg. Operating temperature: 0°C to 50°C (≤35°C at 70% R.H.); storage: –25°C to 65°C.
