Description
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The TB-2640 is a high-performance PXI Switch designed by National Instruments, tailored specifically for seamless integration with the PXI-2532 Matrix Switch Module. This switch is recognized for its robust part numbers, including 191682B-02L, 779056-01, and 779056-02, which signify its diverse configurations and utility.
As a member of the PXI Switches category, the TB-2640 stands out for its compatibility and flexibility. It can be configured as a 4 X 128 Matrix when paired with part number 779056-01 and as a 4 X 128 Matrix with 100 Ohm protection resistors when using part number 779056-02. This versatility ensures that it meets a wide range of testing and simulation requirements.
Designed to handle a maximum current per channel of 0.5 A and featuring a DC path resistance of less than 1.5 Ω, the TB-2640 guarantees efficient performance. It supports a maximum channel-to-channel switching voltage and channel-to-ground switching voltage of 100 V, aligning with CAT I standards. Its typical bandwidth of over 10 MHz further underscores its suitability for high-frequency applications.
To facilitate optimal utilization, this switch necessitates specific accessories, including four 2 mm jumpers, four 34 conductor 28 AWG .050 in. pitch ribbon cable assemblies, one 16 conductor 28 AWG .050 in. pitch ribbon cable assembly, and the necessary screwdrivers. This ensures that users have all the necessary components for a hassle-free setup and operation.
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| Specification | Detail |
|---|---|
| Part Numbers | 191682B-02L, 779056-01, 779056-02 |
| Category | PXI Switches |
| Model | TB-2640 |
| Manufacturer | National Instruments |
| Compatibility | PXI-2532 Matrix Switch Module |
| Configuration with 779056-01 | 4 X 128 Matrix |
| Configuration with 779056-02 | 4 X 128 Matrix with 100 Ohm protection resistors |
| Maximum Current per Channel | 0.5 A |
| DC Path Resistance | <1.5 Ω |
| Maximum Channel-to-Channel Switching Voltage | 100 V |
| Channel-to-Ground Switching Voltage | 100 V, CAT I |
| Typical Bandwidth | ≥10 MHz |
| Required Accessories | Four 2 mm jumpers, four 34 conductor 28 AWG .050 in. pitch ribbon cable assemblies, one 16 conductor 28 AWG .050 in. pitch ribbon cable assembly, 1/8 in. flathead and #1 Philips screwdrivers |
| Obsolete Status |

