SX30D Pressure Sensor: Equivalent & Substitute Parts

Part Overview

The SX30D is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, designed for board mount applications requiring 30PSI (206.84kPa) 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. This product is classified as obsolete, making identification of suitable substitute components necessary for ongoing system support, maintenance, and new design implementations where equivalent functionality is required.

Substiute Parts

SX30D

Honeywell Sensing and Productivity SolutionsIn Stock: 847SX30D Datasheet

Current PartRFQ

NSCSSNN030PDUNV

Honeywell Sensing and Productivity SolutionsIn Stock: 923NSCSSNN030PDUNV Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SX30D is determined by strict alignment of the following critical parameters:

Pressure Measurement Capability: The substitute must support differential pressure measurement at 30PSI nominal operating range to maintain functional equivalence in the target application.

Output Signal Characteristics: The substitute must provide Wheatstone Bridge output with voltage supply compatibility. The SX30D operates at 12V supply; substitutes must support this voltage or provide compatible supply voltage ranges that include 12V operation.

Package and Mounting: The substitute must use 4-SIP Module packaging with through-hole mounting to ensure mechanical and electrical compatibility with existing PCB designs.

Environmental Specifications: Operating temperature range of -40°C to 85°C must be maintained to ensure performance across the same thermal operating envelope.

Regulatory Compliance: RoHS compliance status must be maintained for continued use in regulated applications.

The NSCSSNN030PDUNV meets these substitution criteria while offering enhanced specifications in accuracy and supply voltage flexibility.

Parameter Comparison

Engineering Selection Recommendations

NSCSSNN030PDUNV as Primary Substitute:

The NSCSSNN030PDUNV is classified as an active product from Honeywell Sensing and Productivity Solutions and represents the direct functional replacement for the obsolete SX30D. Both sensors share identical pressure measurement range, output signal type, operating temperature specifications, and 4-SIP module packaging.

Key Substitution Advantages:

The NSCSSNN030PDUNV provides improved accuracy (±0.25% versus ±0.5%), expanded supply voltage compatibility (1.5V to 12V range), and maintains current manufacturing status ensuring long-term availability and supply chain continuity.

Implementation Considerations:

The output voltage span differs between the two sensors (110 mV versus 207 mV at 5V supply). System designs utilizing the SX30D must account for this output scaling difference through signal conditioning or firmware calibration adjustments. The substitute's wider supply voltage range provides additional design flexibility for applications with variable power supply conditions.

Both sensors maintain identical RoHS compliance and moisture sensitivity ratings, ensuring regulatory and environmental compatibility with existing applications.

Frequently Asked Questions (FAQ)

Q: Can the NSCSSNN030PDUNV be used as a direct pin-for-pin replacement for the SX30D?

A: Both sensors use 4-SIP module packaging with through-hole mounting, providing mechanical compatibility. However, the output voltage span differs (110 mV versus 207 mV), requiring signal conditioning or calibration adjustments in the measurement circuit.

Q: What is the primary reason for substituting the SX30D?

A: The SX30D is classified as obsolete. The NSCSSNN030PDUNV is an active product from the same manufacturer, ensuring continued availability, manufacturing support, and supply chain reliability.

Q: Are there differences in pressure measurement capability between these sensors?

A: Both sensors operate at 30PSI differential pressure nominal range. The NSCSSNN030PDUNV specifies ±30PSI (bidirectional), while the SX30D specifies 30PSI unidirectional. Maximum overpressure ratings differ: 90PSI for SX30D versus ±60PSI for NSCSSNN030PDUNV.

Q: Does the NSCSSNN030PDUNV support the same 12V supply voltage as the SX30D?

A: Yes. The NSCSSNN030PDUNV supports a supply voltage range of 1.5V to 12V, which includes the 12V operating point of the SX30D.

Q: What compliance certifications apply to both sensors?

A: Both the SX30D and NSCSSNN030PDUNV are RoHS compliant with MSL rating of 1 (Unlimited moisture sensitivity level). Both carry ECCN classification EAR99 and HTSUS code 9026.20.4000.

Q: How does the improved accuracy of the NSCSSNN030PDUNV affect system performance?

A: The NSCSSNN030PDUNV provides ±0.25% accuracy compared to the SX30D's ±0.5%, representing a 50% reduction in maximum measurement error. This improvement enhances overall system measurement precision without requiring changes to mechanical integration or supply voltage architecture.