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778660-01, 128 Channel, 60 VDC, 64 Relay, PXI-2530 PXI Matrix Switch Module
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Actual item may vary if no part number is provided on quote request.
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March 2025
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January 2025
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May 2025
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January 2025
Carol Zimme**** Verified Buyer
" Very responsive and helpful, competitive pricing. Good source! "
July 2025
Andrew Gar**** Verified Buyer
" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "
March 2025
Said Sai**** Verified Buyer
" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "
January 2025
Bob C**** Verified Buyer
" Jason was able to get our emergency situation taken care of quickly and professionally. "
May 2025
Gregg Flecki**** Verified Buyer
" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "
January 2025
National Instruments 778660-01 Multiplexer/Matrix Module
The part number 778660-01 from National Instruments is the identifying part number for the PXI-2530 128-channel multiplexer/matrix module. The module has a maximum switching voltage of 60 VDC, 30 VACrms, and CAT I when used in channel-to-channel or channel-to-ground configuration. The maximum current per channel that this module can provide is 0.4 Amperes while the maximum switching power is 10 Watts.
The Initial DC path resistance is Less than 2 Ω allowing for efficient signal transmission and minimal signal loss. As the device ages or undergoes prolonged use, the DC path resistance may increase, reaching a typical value of 3 ohms or higher by the end of its lifespan. This increase in resistance can impact signal integrity and may require recalibration or replacement of the device. Thermal EMF can introduce unwanted voltage offsets in measurements, so this module keeps it below 50 µV to help ensure accurate and reliable data acquisition.
The 778660-01 multiplexer/matrix module can switch 64 relays at once while it takes approximately 555 microseconds (µs) for the switches to go from deactivated to activated state. The mechanical life of the relays is 1 x 109 cycles, typical, while the electrical life at 10 V, 100 mA is 1 x 108 cycles, typical. 8 input trigger lines from 0 to 7 can be used to control the switching of the relays and the minimum pulse width required to be considered as a trigger control signal is 150ns.
The module features Reed-type relays that rely on magnetic fields to control the flow of current through a thin metal reed. They are known for their reliability and low contact resistance, making them suitable for various applications, including switching low-level signals in RF and instrumentation systems. The front panel connector of the module is an LFH (Low Force Helix) matrix with 50 rows and 160 positions, utilizing female connectors. LFH connectors are commonly used in high-density applications where space is limited, offering a compact and efficient means of connectivity. The module is designed as a single-slot 3U (3 unit) module compatible with PXI or cPCI (CompactPCI) systems and weighs 266 g (9.4 oz).
| Part Number | 778660-01 |
| Model Name | PXI-2530 |
| Part Type | 128-Channel Multiplexer/Matrix Module |
| Channels | 128 |
| Relay Type | Reed |
| Maximum Switching Voltage | 60 VDC, 30 VACrms, CAT I (channel-to-channel) 60 VDC, 30 VACrms, CAT I (channel-to-ground) |
| Maximum current (per terminal or internal path) | 0.4 A |
| Maximum Switching Power (per channel, resistive) | 10 W |
| Simultaneous Drive Limit | 64 Relays |
| Dimensions (L × W × H) | 21.6 cm × 2.0 cm × 13.0 cm (8.5 in. × 0.8 in. × 5.1 in.) |
| Manufacturer | NI |
Associated part numbers for 778660-01:
National Instruments 778660-01 Frequently Asked Questions
Question: How many channels does the 778660-01 (PXI-2530) support?
Answer: The multiplexer/matrix module supports 128 channels.
Question: What are the dynamic characteristics of the PXI-2530?
Answer: The simultaneous drive limit is 64 relays and the relay operate/release time is 555 µS.
Question: What is the benefit of the PX-2530's Reed-type relays?
Answer: Reed-type relays, which rely on magnetic fields to control the flow of current through thin metal reeds, are known for their reliability and low contact resistance, making them suitable for various applications, including switching low-level signals in RF and instrumentation systems.
Question: Can you extend the life of Reed-type relay modules?
Answer: Reed-type relay modules are highly susceptible to damage caused by switching capacitative and inductive loads. Avoid installing reed relay modules directly adjacent to an embedded controller with a magnetic hard drive to eliminate the possibility of interference. The relays used in the PXI-2530 are field replaceable.
Question: What kind of cables are compatible with this device?
Answer: To ensure the specified EMC performance, operate this product only with shielded cables and accessories.
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