ASCX05DN-90 Equivalent & Substitute Parts Reference

Part Overview

The ASCX05DN-90 is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, rated for 5PSI (34.47kPa) differential measurement with analog voltage output (0.25V ~ 4.75V). The sensor features a 0.19" (4.8mm) male barbless tube connection, dual ports, and operates across -25°C to 105°C with ±1% accuracy. The product is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing applications requiring differential pressure sensing with comparable electrical and mechanical specifications.

Key Parameters

Parameter	Value
Pressure Type	Differential
Operating Pressure	5PSI (34.47kPa)
Output Type	Analog Voltage
Output Range	0.25V ~ 4.75V
Port Size	Male - 0.19" (4.8mm) Tube, Dual
Port Style	Barbless
Voltage Supply	4.5V ~ 16V
Accuracy	±1%
Operating Temperature	-25°C ~ 105°C
Mounting Type	Through Hole
Package Type	6-SIP Module
Features	Amplified Output, Temperature Compensated
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the ASCX05DN-90 is determined by the following critical parameters:

Primary Compatibility Criteria:

Pressure Type: Differential measurement capability
Operating Pressure: 5PSI (34.47kPa) nominal rating
Output Type: Analog voltage signal
Output Range: 0.25V ~ 4.75V
Port Size: Male - 0.19" (4.8mm) tube connection
Port Style: Barbless configuration
Mounting: Through hole, board mount application
Temperature Range: Minimum -25°C to 105°C coverage

Substitution Logic:

The ASDXRRX001PGAA5 and SSCSNBN005PGAB5 are listed as similar manufacturer parts but present significant deviations from the primary compatibility criteria. The ASDXRRX001PGAA5 operates at 1PSI vented gauge pressure (not differential), features a 0.09" tube port (not 0.19"), and operates within -20°C to 105°C. The SSCSNBN005PGAB5, while matching 5PSI operating pressure and 0.19" port size, is rated as vented gauge pressure (not differential) and operates within -40°C to 85°C.

The 5 PSI-D-4V-ASCX manufactured by Amphenol All Sensors Corporation is the direct equivalent substitute. This component maintains differential pressure type, ±5PSI (±34.47kPa) operating pressure, 0.25V ~ 4.75V output range, 0.19" (4.8mm) male barbless dual ports, through-hole mounting, and -25°C to 105°C operating temperature. The 4-SIP package differs from the original 6-SIP module, but electrical and mechanical interface parameters remain compatible for board-level applications.

Parameter Comparison

Parameter	ASCX05DN-90 (Main)	ASDXRRX001PGAA5	SSCSNBN005PGAB5	5 PSI-D-4V-ASCX
Manufacturer	Honeywell	Honeywell	Honeywell	Amphenol All Sensors
Pressure Type	Differential	Vented Gauge	Vented Gauge	Differential
Operating Pressure	5PSI (34.47kPa)	1PSI (6.89kPa)	5PSI (34.47kPa)	±5PSI (±34.47kPa)
Output Type	Analog Voltage	Analog Voltage	Analog Voltage	Wheatstone Bridge
Output Range	0.25V ~ 4.75V	0.5V ~ 4.5V	0.25V ~ 4.75V	0.25V ~ 4.75V
Port Size	0.19" (4.8mm)	0.09" (2.31mm)	0.19" (4.8mm)	0.19" (4.8mm)
Port Style	Barbless	Barbless	Barbless	Barbless
Voltage Supply	4.5V ~ 16V	4.75V ~ 5.25V	4.75V ~ 5.25V	4.5V ~ 5.5V
Accuracy	±1%	±2%	±0.25%	±0.5%
Operating Temperature	-25°C ~ 105°C	-20°C ~ 105°C	-40°C ~ 85°C	-25°C ~ 105°C
Maximum Pressure	20PSI (137.9kPa)	2PSI (13.79kPa)	30PSI (206.84kPa)	±15PSI (±103.42kPa)
Package Type	6-SIP Module	8-DIP Module	4-SIP, Dual Ports, Same Side	4-SIP
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent Substitute:

The 5 PSI-D-4V-ASCX (Amphenol All Sensors Corporation) is the appropriate direct substitute for the ASCX05DN-90. This component maintains differential pressure measurement capability, matching operating pressure specification (±5PSI), output voltage range (0.25V ~ 4.75V), port configuration (0.19" male barbless dual), and operating temperature range (-25°C ~ 105°C). Both components feature amplified output and temperature compensation. The 4-SIP package replaces the 6-SIP module, requiring PCB layout modification but maintaining electrical interface compatibility through PC pin termination. The 5 PSI-D-4V-ASCX is currently in active production status with ROHS3 compliance certification.

Alternative Consideration:

The SSCSNBN005PGAB5 (Honeywell TruStability® SSC series) shares identical operating pressure (5PSI), output range (0.25V ~ 4.75V), and port size (0.19" male barbless) specifications. However, this component measures vented gauge pressure rather than differential pressure, making it unsuitable for applications requiring differential measurement. The SSCSNBN005PGAB5 operates within -40°C to 85°C, which does not fully cover the original -25°C to 105°C range. This part is appropriate only for gauge pressure applications with modified temperature requirements.

Not Recommended:

The ASDXRRX001PGAA5 is not suitable as a substitute. Operating pressure (1PSI), port size (0.09"), and pressure type (vented gauge) differ fundamentally from the ASCX05DN-90 specifications. This component is intended for low-pressure gauge applications and cannot replace differential pressure measurement functionality.

Frequently Asked Questions (FAQ)

Q: Can the SSCSNBN005PGAB5 replace the ASCX05DN-90 in my application?

A: The SSCSNBN005PGAB5 is not a suitable replacement. While it shares the 5PSI operating pressure and 0.19" port size, it measures vented gauge pressure instead of differential pressure. Applications requiring differential pressure measurement cannot use gauge pressure sensors. Additionally, the operating temperature range (-40°C to 85°C) does not fully cover the original specification (-25°C to 105°C).

Q: What is the difference between the 6-SIP and 4-SIP packages?

A: The ASCX05DN-90 uses a 6-SIP (Single In-line Package) module, while the 5 PSI-D-4V-ASCX uses a 4-SIP package. Both employ PC pin termination for through-hole mounting. The package size and pin count differ, requiring PCB layout modification. Electrical interface and signal characteristics remain compatible.

Q: Is the 5 PSI-D-4V-ASCX a direct pin-for-pin replacement?

A: No. The 5 PSI-D-4V-ASCX is a functional equivalent, not a pin-for-pin replacement. The 4-SIP package has fewer pins than the 6-SIP module. PCB redesign is required to accommodate the different package footprint. Electrical functionality and signal output characteristics are compatible.

Q: Why is the ASCX05DN-90 listed as obsolete?

A: The ASCX05DN-90 is classified as obsolete by the manufacturer, indicating it is no longer in active production. The 5 PSI-D-4V-ASCX serves as the active production equivalent for differential pressure measurement at 5PSI with comparable specifications.

Q: What are the key parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: pressure type (differential vs. gauge), operating pressure rating (5PSI), output type (analog voltage), output range (0.25V ~ 4.75V), port size and style (0.19" male barbless), and operating temperature range coverage (-25°C to 105°C minimum). Deviations in any of these parameters indicate incompatibility for the original application.

Q: Does the 5 PSI-D-4V-ASCX meet RoHS compliance requirements?

A: Yes. The 5 PSI-D-4V-ASCX carries ROHS3 compliance certification, meeting current regulatory requirements. The original ASCX05DN-90 is RoHS Compliant. Both components satisfy RoHS standards for electronic component manufacturing.

Q: Can I use the ASDXRRX001PGAA5 if I modify my application for gauge pressure measurement?

A: The ASDXRRX001PGAA5 is not recommended even for gauge pressure applications requiring 5PSI measurement. This component is rated for only 1PSI operating pressure with a maximum pressure of 2PSI. It features a 0.09" port size (not 0.19"), incompatible with existing tubing connections. The operating temperature range (-20°C to 105°C) does not cover the full original specification. Application redesign would be extensive.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message