SX7150D Pressure Sensor Equivalent & Substitute Parts

Part Overview

The SX7150D is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring 150PSI (1034.21kPa) differential pressure measurement. The sensor outputs a Wheatstone Bridge signal in the range of 0 mV to 110 mV at 5V supply voltage with ±0.5% accuracy.

The SX7150D is classified as an obsolete product. Identification of equivalent and substitute parts is necessary to maintain system functionality, ensure supply chain continuity, and support legacy equipment maintenance where direct replacement with the original part number is no longer feasible.

Substiute Parts

SX7150D

Honeywell Sensing and Productivity SolutionsIn Stock: 957SX7150D Datasheet

Current PartRFQ

NSCSSNN150PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 1207NSCSSNN150PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SX7150D is determined by the following critical parameters:

Pressure Measurement Capability: The substitute part must support differential pressure measurement at or above 150PSI operating range.

Output Signal Type: The substitute must utilize Wheatstone Bridge output to maintain compatibility with existing signal conditioning and measurement circuits.

Mechanical Compatibility: The substitute must feature a 4-SIP Module package with through-hole mounting to ensure physical fit within the original application.

Electrical Interface: The substitute must operate within the supply voltage range of the original design and maintain compatible output signal levels.

Environmental Specifications: The substitute must support the operating temperature range of -40°C to 85°C.

Regulatory Compliance: The substitute must maintain RoHS compliance status.

The NSCSSNN150PDUNV meets these substitution criteria through equivalent pressure range, identical output signal type, matching package configuration, and compatible environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

The NSCSSNN150PDUNV is a direct substitute for the obsolete SX7150D based on the following engineering criteria:

Product Status Alignment: The NSCSSNN150PDUNV is an active product from the same manufacturer, ensuring ongoing availability and technical support. The SX7150D obsolete status necessitates transition to an active equivalent.

Regulatory Compliance: Both parts maintain RoHS compliance, satisfying environmental and regulatory requirements for new designs and legacy system maintenance.

Functional Equivalence: Both sensors provide differential pressure measurement using Wheatstone Bridge output with identical package configuration and mounting methodology. The NSCSSNN150PDUNV operates within the same temperature range and supports the same supply voltage range as the original design.

Performance Enhancement: The NSCSSNN150PDUNV offers improved accuracy (±0.25% versus ±0.5%) and extended pressure rating (±250PSI versus 200PSI maximum), providing enhanced measurement capability without requiring circuit redesign.

Supply Voltage Flexibility: The NSCSSNN150PDUNV supports a wider supply voltage range (1.5V ~ 12V) compared to the fixed 12V requirement of the SX7150D, enabling greater application flexibility.

Frequently Asked Questions (FAQ)

Q: Can the NSCSSNN150PDUNV directly replace the SX7150D in existing applications?

A: Yes. Both sensors share identical package configuration (4-SIP Module), mounting type (through hole), pressure type (differential), and operating temperature range (-40°C ~ 85°C). The Wheatstone Bridge output type ensures signal compatibility with existing measurement circuits.

Q: What is the difference in output signal between these two sensors?

A: The SX7150D outputs 0 mV ~ 110 mV at 5V supply, while the NSCSSNN150PDUNV outputs 0 mV ~ 258.5 mV at 5V supply. The NSCSSNN150PDUNV provides higher output sensitivity. Signal conditioning circuits may require adjustment to accommodate the increased output range.

Q: Does the NSCSSNN150PDUNV support the same supply voltage as the SX7150D?

A: The SX7150D requires 12V supply. The NSCSSNN150PDUNV supports 1.5V ~ 12V supply range, making it compatible with 12V designs while offering additional flexibility for lower voltage applications.

Q: Are there any pressure measurement differences between these sensors?

A: The SX7150D operates at 150PSI with a maximum pressure rating of 200PSI. The NSCSSNN150PDUNV operates at ±150PSI with a maximum pressure rating of ±250PSI. Both support the same nominal operating pressure of 150PSI differential.

Q: What is the accuracy difference between these two sensors?

A: The SX7150D provides ±0.5% accuracy, while the NSCSSNN150PDUNV provides ±0.25% accuracy. The substitute part offers improved measurement precision.

Q: Are both sensors RoHS compliant?

A: Yes. Both the SX7150D and NSCSSNN150PDUNV are RoHS compliant, meeting environmental and regulatory requirements.

Q: What is the product status of each sensor?

A: The SX7150D is classified as obsolete. The NSCSSNN150PDUNV is an active product with ongoing manufacturer support and availability.