SX7100D Pressure Sensor Equivalent & Substitute Parts

Part Overview

The SX7100D is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications with a 100PSI (689.48kPa) differential pressure range and Wheatstone Bridge output. The sensor operates with a 12V supply and delivers 0 mV to 150 mV output across a 4-SIP module package.

This part is classified as obsolete. Identifying equivalent and substitute components is necessary to maintain system functionality, ensure continued supply chain availability, and support long-term product maintenance and redesign initiatives.

Substiute Parts

SX7100D

Honeywell Sensing and Productivity SolutionsIn Stock: 960SX7100D Datasheet

Current PartRFQ

NSCSSNN100PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 1755NSCSSNN100PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX7100D is determined by the following critical parameters:

Pressure Specification: Operating pressure range must accommodate the 100PSI differential requirement. The substitute must support equivalent or higher maximum pressure ratings.

Output Characteristics: Wheatstone Bridge output type and output voltage range (0 mV ~ 150 mV nominal) define the signal interface. Substitutes must provide compatible output scaling for system integration.

Supply Voltage Compatibility: The SX7100D operates at 12V. Substitutes must support 12V operation within their specified supply voltage range.

Package and Termination: The 4-SIP module package with PC Pin termination and through-hole mounting must be maintained for direct board-level replacement.

Environmental Specifications: Operating temperature range of -40°C to 85°C must be met or exceeded.

Compliance and Status: RoHS compliance and REACH unaffected status ensure regulatory alignment.

The NSCSSNN100PDUNV meets these substitution criteria while offering enhanced specifications in accuracy and supply voltage flexibility.

Parameter Comparison

Engineering Selection Recommendations

The NSCSSNN100PDUNV is a direct substitute for the obsolete SX7100D based on the following engineering criteria:

Functional Equivalence: Both sensors provide differential pressure measurement with Wheatstone Bridge output in identical 4-SIP module packages with PC Pin through-hole termination. Operating pressure ranges are equivalent at 100PSI differential.

Supply Voltage: The NSCSSNN100PDUNV supports the required 12V supply voltage and extends compatibility to lower supply voltages (1.5V minimum), providing design flexibility for future applications.

Regulatory Compliance: Both parts maintain RoHS compliance and REACH unaffected status, ensuring continued regulatory alignment.

Product Availability: The NSCSSNN100PDUNV is actively manufactured with 1676 units in stock, compared to the obsolete SX7100D status. This ensures long-term supply chain continuity.

Enhanced Specifications: The substitute offers improved accuracy (±0.25% versus ±0.5%) and higher maximum pressure rating (±250PSI versus 150PSI), providing margin for system robustness.

Output Scaling Consideration: The NSCSSNN100PDUNV output range is 0 mV to 172.5 mV compared to 0 mV to 150 mV for the SX7100D. System signal conditioning and analog-to-digital conversion parameters must be reviewed to accommodate the 15% higher output sensitivity.

Frequently Asked Questions (FAQ)

Q: Can the NSCSSNN100PDUNV directly replace the SX7100D without circuit modifications?

A: Physical and electrical interfaces are compatible. However, the output voltage range difference (172.5 mV versus 150 mV) requires verification of downstream signal conditioning, amplification, and analog-to-digital conversion circuits to ensure proper signal scaling and measurement accuracy.

Q: What is the significance of the output range difference between these sensors?

A: The NSCSSNN100PDUNV provides 172.5 mV full-scale output compared to 150 mV for the SX7100D. This represents approximately 15% higher sensitivity. If your system's analog-to-digital converter or signal conditioning is calibrated for the 150 mV range, recalibration is necessary to maintain measurement accuracy with the substitute part.

Q: Are both sensors suitable for the same temperature range applications?

A: Yes. Both the SX7100D and NSCSSNN100PDUNV operate across -40°C to 85°C, making them suitable for identical temperature range applications.

Q: Why does the NSCSSNN100PDUNV have a higher maximum pressure rating?

A: The NSCSSNN100PDUNV is rated for ±250PSI maximum pressure compared to 150PSI for the SX7100D. This higher overpressure rating provides additional safety margin and system robustness, though both sensors operate identically within the 100PSI differential working range.

Q: Is the 4-SIP module package identical between both parts?

A: Yes. Both sensors use the 4-SIP module package with PC Pin termination and through-hole mounting, ensuring mechanical and electrical interface compatibility on printed circuit boards.

Q: What compliance certifications apply to the NSCSSNN100PDUNV?

A: The NSCSSNN100PDUNV maintains RoHS compliance and REACH unaffected status, identical to the SX7100D, ensuring regulatory alignment for industrial and commercial applications.

Q: Is the NSCSSNN100PDUNV currently available?

A: Yes. The NSCSSNN100PDUNV is classified as active product status with 1676 units in stock, ensuring immediate availability compared to the obsolete SX7100D.