TB-414X Specifications
- Updated2024-04-22
- 8 minute(s) read
TB-414X Specifications
These specifications apply to the TB-414X Screw Terminal Connector Kit for PXIe-414x (NI Part Number 787611-01).
Definitions
Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.
Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.
- Typical specifications describe the performance met by a majority of models.
- Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
Specifications are Warranted unless otherwise noted.
Voltage, Current, and Resistance
Channel operating voltage[1]1 Maximum voltage measured between the HI, HI Sense, LO, LO Sense, or Guard terminals. SMU specifications take precedence if the SMU model is rated for lower voltage. | 60 V DC |
HI/LO pin current[2]2 SMU specifications take precedence if the SMU model is rated for lower current. | 3 A |
Force path resistance[3]3 Combined resistance in the HI and LO force traces and connectors for a channel of the TB-414X. Does not include any output resistance contributions of the SMU module or user wiring. Refer to SMU module specifications to determine if this resistance is included in the voltage load regulation specification or if it should be accounted for separately. | 30 mΩ, typical |
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Isolation
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics.
Isolation voltage, channel to earth ground[5]5 While TB-414X channels are isolated from each other, this isolation is considered functional isolation for the purpose of allowing the separation of return currents and is not intended to operate continuously under significant voltages or provide safety isolation. The TB-414X is intended for use with PXIe-414x SMUs which are isolated from earth ground, but share a common LO for all channels (bank isolation). | 60 V DC, CAT I |
Withstand voltage | 800 Vpk |
Screw Terminal Wiring
Screw terminal wire gauge | 24 to 18 AWG |
Length of bare wire (insulation stripped) from one end of the wire | 5 mm to 6 mm (0.197 in. to 0.236 in.) |
Screw terminal torque | 0.5 Nm (4 lb · in.) |
Spacing between screw terminals | 3.5 mm (0.14 in.) |
Physical
Top cover and strain relief screws | #4-40 |
Top cover and strain relief screw torque | 0.3 Nm (2.7 lb · in.) |
Dimensions | 112 mm × 74 mm × 19 mm (4.4 in. × 2.9 in. × 0.8 in.) |
Weight | 112 g (3.95 oz) |
Environmental Guidelines
Environmental Characteristics
Temperature and Humidity
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Pollution Degree | 2 |
Maximum altitude | 2,000 m (800 mbar) (at 25 °C ambient temperature) |
Compliance and Standards
Safety Compliance Standards
This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:
- IEC 61010-1, EN 61010-1
- UL 61010-1, CSA C22.2 No. 61010-1
Environmental Management
NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.
For additional environmental information, refer to the Engineering a Healthy Planet web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.
EU and UK Customers
电子信息产品污染控制管理办法(中国RoHS)
CE Compliance

This product meets the essential requirements of applicable European Directives, as follows:
- 2011/65/EU; Restriction of Hazardous Substances (RoHS)
Export Compliance
This product is subject to control under the U.S. Export Administration Regulations (15 CFR Part 730 et. seq.) administered by the U.S. Department of Commerce's Bureau of Industry and Security (BIS) (www.bis.doc.gov) and other applicable U.S. export control laws and sanctions regulations. This product may also be subject to additional license requirements of other countries' regulations.
Additionally, this product may also require export licensing before being returned to NI. The issuance of a Return Material Authorization (RMA) by NI does not constitute export authorization. The user must comply with all applicable export laws prior to exporting or re-exporting this product. See ni.com/legal/export-compliance for more information and to request relevant import classification codes (e.g. HTS), export classification codes (e.g. ECCN), and other import/export data.
Product Certifications and Declarations
Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.
1 Maximum voltage measured between the HI, HI Sense, LO, LO Sense, or Guard terminals. SMU specifications take precedence if the SMU model is rated for lower voltage.
2 SMU specifications take precedence if the SMU model is rated for lower current.
3 Combined resistance in the HI and LO force traces and connectors for a channel of the TB-414X. Does not include any output resistance contributions of the SMU module or user wiring. Refer to SMU module specifications to determine if this resistance is included in the voltage load regulation specification or if it should be accounted for separately.
4 Applies between HI and LO terminals. Leakage performance may be degraded for operation above 70% relative humidity. When transitioning a device from a storage or operation environment with operating humidity above 70%, allow the device to stabilize in the lower humidity environment for several hours before use.
5 While TB-414X channels are isolated from each other, this isolation is considered functional isolation for the purpose of allowing the separation of return currents and is not intended to operate continuously under significant voltages or provide safety isolation. The TB-414X is intended for use with PXIe-414x SMUs which are isolated from earth ground, but share a common LO for all channels (bank isolation).
6 Not all chassis can achieve this ambient temperature range. Refer to PXI chassis specifications to determine the ambient temperature ranges your chassis can achieve. SMU specifications take precedence if the SMU model is rated for different operating temperatures.
7 When transitioning a device from a storage or operation environment with relative humidity above 70%, device should be allowed to stabilize in the lower humidity environment for several hours before use. Refer to the TB-414XVoltage, Current, and Resistance specifications for additional performance derating when operating above 70% relative humidity.