ASCX30DN Equivalent & Substitute Parts

Part Overview

The ASCX30DN is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, rated for 30PSI (206.84kPa) differential pressure measurement with dual analog voltage output (0.25V ~ 4.75V). The sensor features a 0.19" (4.8mm) male barbless tube port configuration in a 6-SIP module package with through-hole mounting. The product is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing system support and new designs.

Substiute Parts

ASCX30DN

Honeywell Sensing and Productivity SolutionsIn Stock: 1106ASCX30DN Datasheet

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ASDXRRX001PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 2612ASDXRRX001PGAA5 Datasheet

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SSCDRRN030PGAB5

Honeywell Sensing and Productivity SolutionsIn Stock: 1013SSCDRRN030PGAB5 Datasheet

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SSCSNBN030PGAA5

Honeywell Sensing and Productivity SolutionsIn Stock: 978SSCSNBN030PGAA5 Datasheet

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SSCSNBN030PGAB5

Honeywell Sensing and Productivity SolutionsIn Stock: 937SSCSNBN030PGAB5 Datasheet

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30 PSI-D-4V-ASCX

Amphenol All Sensors CorporationIn Stock: 119730 PSI-D-4V-ASCX Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASCX30DN is determined by the following critical parameters: pressure type (differential vs. vented gauge), operating pressure rating (30PSI), output voltage range (0.25V ~ 4.75V), port size and style (0.19" male barbless tube), and package configuration (through-hole mounting with PC pin termination).

The substitute parts are grouped into two categories:

Category 1: Differential Pressure Sensors with Matching Pressure Rating The part 30 PSI-D-4V-ASCX (Amphenol All Sensors Corporation) maintains differential pressure measurement at ±30PSI with identical port configuration (0.19" male barbless tube) and output voltage range (0.25V ~ 4.75V). This part represents a direct functional equivalent with active product status.

Category 2: Vented Gauge Pressure Sensors with Matching Pressure Rating The parts SSCSNBN030PGAA5, SSCSNBN030PGAB5, and SSCDRRN030PGAB5 (Honeywell Sensing and Productivity Solutions, TruStability® SSC series) operate at 30PSI vented gauge pressure. These sensors share the same operating pressure rating, output voltage range (0.25V ~ 4.75V or 0.5V ~ 4.5V), port configuration options, and amplified temperature-compensated output. These parts are active products with enhanced accuracy specifications.

Category 3: Low-Pressure Sensor (Not Recommended for Direct Substitution) The part ASDXRRX001PGAA5 operates at 1PSI vented gauge pressure with different port size (0.09" tube) and supply voltage requirements (4.75V ~ 5.25V). This part is listed in the original substitute list but does not meet the pressure rating requirements of the ASCX30DN.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 30 PSI-D-4V-ASCX

The 30 PSI-D-4V-ASCX (Amphenol All Sensors Corporation) is the recommended primary substitute for the ASCX30DN. This part maintains differential pressure measurement at ±30PSI, matching the original sensor's pressure type and rating. The output voltage range (0.25V ~ 4.75V) is identical, and the port configuration (0.19" male barbless tube) ensures mechanical compatibility. The part is currently in active production status with ROHS3 compliance. The primary design consideration is the package change from 6-SIP to 4-SIP, which requires PCB layout modification. The operating temperature range (-25°C ~ 105°C) matches the original specification.

Secondary Substitutes: SSCSNBN030PGAB5 and SSCSNBN030PGAA5

The SSCSNBN030PGAB5 and SSCSNBN030PGAA5 (Honeywell TruStability® SSC series) are secondary substitutes suitable for applications where vented gauge pressure measurement is acceptable. Both parts operate at 30PSI with identical port size (0.19" male barbless tube) and output voltage range (0.25V ~ 4.75V for PGAB5; 0.5V ~ 4.5V for PGAA5). These parts offer superior accuracy (±0.25% vs. ±1%) and are in active production with RoHS compliance. The package configuration is 4-SIP with dual ports on the same side, requiring PCB layout modification from the original 6-SIP design. The operating temperature range is reduced to -40°C ~ 85°C.

Alternative Substitute: SSCDRRN030PGAB5

The SSCDRRN030PGAB5 (Honeywell TruStability® SSC series) operates at 30PSI vented gauge pressure with output voltage range 0.25V ~ 4.75V. This part features an 8-DIP package with reduced port size (0.08" male barbed tube), which may require tubing adapter consideration. The part is in active production with superior accuracy (±0.25%) and RoHS compliance. The barbed port style differs from the original barbless configuration.

Not Recommended: ASDXRRX001PGAA5

The ASDXRRX001PGAA5 is not suitable as a substitute for the ASCX30DN. This part operates at 1PSI vented gauge pressure, which is incompatible with the 30PSI operating pressure requirement. The port size (0.09" tube) differs from the original specification, and the supply voltage range (4.75V ~ 5.25V) is more restrictive than the original (4.5V ~ 16V).

Frequently Asked Questions (FAQ)

Q: Can the ASCX30DN be directly replaced with the 30 PSI-D-4V-ASCX without circuit modifications?

A: The 30 PSI-D-4V-ASCX maintains the same output voltage range (0.25V ~ 4.75V) and operating pressure (30PSI differential), but the package changes from 6-SIP to 4-SIP. PCB layout modification is required to accommodate the different pin configuration and spacing. The electrical interface remains compatible.

Q: What is the difference between differential and vented gauge pressure measurement?

A: Differential pressure sensors measure the pressure difference between two ports (positive and negative). Vented gauge pressure sensors measure pressure relative to atmospheric pressure through a vent port. The ASCX30DN measures differential pressure, while the SSCSNBN and SSCDRRN series measure vented gauge pressure. Application requirements determine which type is appropriate.

Q: Are the SSCSNBN030PGAB5 and SSCSNBN030PGAA5 interchangeable?

A: Both parts operate at 30PSI with identical port configuration (0.19" male barbless tube) and package (4-SIP). The primary difference is the output voltage range: PGAB5 outputs 0.25V ~ 4.75V, while PGAA5 outputs 0.5V ~ 4.5V. Selection depends on the receiving circuit's input voltage requirements.

Q: Why does the SSCDRRN030PGAB5 have a different port size than the ASCX30DN?

A: The SSCDRRN030PGAB5 uses a 0.08" (1.93mm) male barbed tube port, compared to the ASCX30DN's 0.19" (4.8mm) male barbless tube. This difference requires tubing adapter consideration and may affect system integration. The barbed port style also differs from the original barbless design.

Q: What are the compliance and regulatory considerations for substitution?

A: All substitute parts listed are RoHS compliant. The 30 PSI-D-4V-ASCX carries ROHS3 compliance, while the Honeywell TruStability® SSC series parts carry standard RoHS compliance. All parts are classified under HTSUS 9026.20.4000 and ECCN EAR99. REACH status is unaffected for all parts. Moisture sensitivity level (MSL) is 1 (Unlimited) for all components.

Q: Can the ASCX30DN be used in new designs, or should substitutes be selected?

A: The ASCX30DN is classified as obsolete. For new designs, selection of an active product status substitute is recommended. The 30 PSI-D-4V-ASCX or SSCSNBN030PGAB5 are preferred for new applications due to active production status and long-term availability assurance.

Q: What is the impact of the operating temperature range difference between the ASCX30DN and substitute parts?

A: The ASCX30DN operates from -25°C ~ 105°C. The SSCSNBN and SSCDRRN series operate from -40°C ~ 85°C, providing lower temperature capability but reduced upper temperature limit. The 30 PSI-D-4V-ASCX maintains the identical -25°C ~ 105°C range. Application temperature requirements determine suitability.

Q: Are there supply voltage compatibility concerns when substituting?

A: The ASCX30DN accepts 4.5V ~ 16V supply voltage. The 30 PSI-D-4V-ASCX accepts 4.5V ~ 5.5V, and the Honeywell TruStability® SSC series accepts 4.75V ~ 5.25V. If the original design uses supply voltages above 5.5V, circuit modification is required for substitute parts. Verify supply voltage compatibility before substitution.