07 | Keysight | PXI Multiplexer Switch Modules M9101A, M9102A, M9103A – Data Sheet
Specifications and Characteristics
M9103A PXI high-density multiplexer
M9103A specifications and characteristics
The M9103A is a high-density, 99-channel, high-powered
armature relay multiplexer. Each channel has a high and low for
2-wire switching and can switch up to 100 Vrms, with up to 60 W
of power. The modules’ isolation switch connects the closed
channels to the module common. Easily connect to the multiplexer
with a high-density, 200-pin low force helix (LFH) connector or
cable.
General specifications
Channels
99
Switch type
Max volts1
2-wire armature
100 Vrms
1 A
Max current switch/carry
Switching characteristics, nominal
Max power
60 W
Switch speed (typical)
4.5 msec
< 500 mΩ
Initial path resistance,
differential (typical)2
Connectors
Bandwidth
200 LFH connector block or cable
1 MHz
DC isolation, Ch-Ch, Ch-Gnd
25C/40%RH (typical)
25C/80%RH (typical)
40C/80%RH (typical)
1x109 Ω
1x107 Ω
1x105 Ω
Thermal offset, differential
5 µV
(typical)
Relay life, operations
Low power load (typical)
Rated power load (typical)
> 2.5x106
> 1x105
Figure 5. M9103A 99-ch, 2-wire, EM relays
1. Not for connection to mains.
2. Channel resistance is typically < 1.5 Ω but can go as high as 50 Ω when
a channel is used in measurement applications with < 10 mA load
current. Increased relay channel resistance for measurements with load
currents below 10 mA can occur on cards that have been out of service
or following relay inactivity for periods greater than 1 week. Switching
relays for 2K cycles prior to use may reduce the variation in channel
resistance. Keysight recommends the use of 4-wire Ohms for resistance
measurements. For high accuracy voltage measurements, select the
DMM input resistance setting of >10 G ohms to minimize the impact of
relay contact resistance.
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