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for sale there's a number of various HP 4447x –series modules as well as some newer Agilent N-series modules (need a newer controller mainframe as AT 3499A, for example). Some modules are sold both used and factory new, others are available just used.
max. voltage 250VDC, 250VAC RMS, 350Vpeak
maximum current (Per channel or module) 2 ADC, 2AAC RMS
maximum power (Per channel or module) 60W DC, 500 VA AC
Thermal Offset <3µV differential or single ended
max. voltage 250VDC, 250VAC RMS, 350Vpeak
maximum current (Per channel) 2 ADC, 2AAC RMS
maximum current (Per module) 20 ADC, 20AAC RMS
maximum power (Per channel) 60W DC, 500 VA AC
maximum power (Per module) 60W DC, 500 VA AC
Thermal Offset <3µV per channel
Closed channel resistance <2 Ohm (end of relay life)
Open Channel <7pF, closed channel <10pF, Channel Chassis <25pF
Maximum voltage 30 VAC RMS, 42VAC peak
Maximum Current (per channel) 30 mA DC, 300 mA AC RMS
Thermal Offset <15µV per channel
AC Isolation Performance (50 ohm termination)
Insertion Loss (dB) <0,5 30 MHz, <0,75 100 MHz, <1,25 300 MHz
Crosstalk (dB) <-100 30 MHz, <-85 100 MHz, <-65 300 MHz
VSWR <1,06 30 Mhz, <1,12 100 MHz, <1,43 300 MHz
Capacitance Center Center, Common Common <0,002 pF, Center-Low <70 pF, Low-Chassis <0,2µF
Rise Time <0,7 nsec
Signal Delay <2,5 nsec.
max. voltage 250VDC, 250VAC RMS, 350Vpeak
maximum current (Per channel) 2 ADC, 2AAC RMS
maximum current (Per module) 2 ADC, 2AAC RMS
maximum power (Per channel) 60W DC, 500 VA AC
maximum power (Per module) 240W DC, 2000 VA AC
Thermal Offset <3µV differential
max. voltage +30V DC (Line-Chassis)
Output Characteristic Vin (high) >= 2V, Vin (low) <=0,8V
Handshake Lines max. voltage +%V DC (Line-Chassis) Output Vout(high) >=2,4V Vout(low) <=0.5V
External Increment: Advances 3488A to next programmed configuration on falling edge of TTL pulse, 0.25µs minimum width.
Channel Closed Indicates completion of new configuration; TTL pulse 10µsec minimum width.
HP 44478A 1.3 GHz Multiplexer Module
Two 4-to-1 multiplexers
42 V DC+AC peak up to 1.3 Ghz
Having a HP 3488A Switch Controller Unit you can easily tailor a combination for your individual needs. Combined shipping together with a 3488A unit loaded with cards reduces relative shipping costs. No manuals or cables included. I will combine shipping, the auction shipping calculator may not give the correct sum, but please ask for combined total.
Ships worldwide, well packaged.