ASCX100DN Pressure Sensor Equivalent & Substitute Parts

Part Overview

The ASCX100DN is a differential pressure sensor manufactured by Honeywell Sensing and Productivity Solutions, rated for 100PSI (689.48kPa) differential measurement with analog voltage output (0.25V ~ 4.75V). The sensor features a 6-SIP module package with male 0.19" (4.8mm) barbless dual tube ports and operates across -25°C to 105°C. This product is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Key Parameters

Parameter	ASCX100DN
Pressure Type	Differential
Operating Pressure	100PSI (689.48kPa)
Output Type	Analog Voltage
Output Range	0.25V ~ 4.75V
Voltage Supply	4.5V ~ 16V
Port Size	Male - 0.19" (4.8mm) Tube, Dual
Port Style	Barbless
Accuracy	±1%
Operating Temperature	-25°C ~ 105°C
Package Type	6-SIP Module
Mounting Type	Through Hole
Features	Amplified Output, Temperature Compensated

Substitute Part Grouping Explanation

Substitution of the ASCX100DN is determined by the following critical parameters:

Pressure Measurement Type: The ASCX100DN measures differential pressure. Substitutes must maintain differential pressure measurement capability or be evaluated for functional equivalence in the application circuit.

Pressure Rating: 100PSI operating pressure is the primary selection criterion. Substitute parts must support this pressure range.

Output Characteristics: The 0.25V ~ 4.75V analog voltage output range and amplified output feature are essential for signal compatibility with downstream electronics.

Mechanical Interface: The male 0.19" (4.8mm) barbless dual tube ports define the pneumatic connection. Port size and style must match or be mechanically compatible.

Electrical Interface: The 6-SIP through-hole package with PC pin termination determines PCB mounting compatibility.

Environmental Range: Operating temperature -25°C to 105°C establishes the thermal operating envelope.

The substitute parts listed below are grouped based on their alignment with these parameters, with specific compatibility notes regarding pressure type and output characteristics.

Parameter Comparison

Parameter	ASCX100DN	100 PSI-D-4V-ASCX	SSCSNBN100PGAA5	SSCDRRN100PGAB5
Manufacturer	Honeywell	Amphenol All Sensors	Honeywell	Honeywell
Series	ASCX	ASCX	TruStability® SSC	TruStability® SSC
Pressure Type	Differential	Differential	Vented Gauge	Vented Gauge
Operating Pressure	100PSI (689.48kPa)	±100PSI (±689.48kPa)	100PSI (689.48kPa)	100PSI (689.48kPa)
Output Type	Analog Voltage	Wheatstone Bridge	Analog Voltage	Analog Voltage
Output Range	0.25V ~ 4.75V	0.25V ~ 4.75V	0.5V ~ 4.5V	0.25V ~ 4.75V
Voltage Supply	4.5V ~ 16V	4.5V ~ 5.5V	4.75V ~ 5.25V	4.75V ~ 5.25V
Port Size	Male - 0.19" (4.8mm) Tube, Dual	Male - 0.19" (4.8mm) Tube, Dual	Male - 0.19" (4.8mm) Tube, Dual	Male - 0.08" (1.93mm) Tube, Dual
Port Style	Barbless	Barbless	Barbless	Barbed
Accuracy	±1%	±0.5%	±0.25%	±0.25%
Operating Temperature	-25°C ~ 105°C	-25°C ~ 105°C	-40°C ~ 85°C	-40°C ~ 85°C
Maximum Pressure	150PSI (1034.21kPa)	±150PSI (±1034.21kPa)	250PSI (1723.69kPa)	250PSI (1723.69kPa)
Package Type	6-SIP Module	4-SIP	4-SIP	8-DIP (0.524", 13.30mm)
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Direct Equivalent (Differential Pressure): The 100 PSI-D-4V-ASCX manufactured by Amphenol All Sensors Corporation is the closest functional equivalent. Both parts maintain differential pressure measurement at 100PSI with matching port size (0.19" barbless), identical output voltage range (0.25V ~ 4.75V), and equivalent operating temperature range (-25°C ~ 105°C). The 100 PSI-D-4V-ASCX is currently active in production status, ensuring long-term availability. The primary design consideration is the package transition from 6-SIP to 4-SIP, which requires PCB layout modification. Both parts are RoHS compliant and carry identical ECCN and HTSUS classifications.

Alternative Options (Vented Gauge Pressure): The SSCSNBN100PGAA5 and SSCDRRN100PGAB5 are active Honeywell TruStability® SSC series sensors that measure vented gauge pressure rather than differential pressure. These substitutes are applicable only in applications where gauge pressure measurement is functionally equivalent to the original differential measurement requirement. Both offer improved accuracy (±0.25% versus ±1%) and higher maximum pressure ratings (250PSI versus 150PSI). The SSCSNBN100PGAA5 maintains the 0.19" port size and barbless style, while the SSCDRRN100PGAB5 uses a smaller 0.08" barbed port requiring pneumatic interface redesign.

Compliance and Availability: All substitute parts are RoHS compliant and REACH unaffected. The ASCX100DN's obsolete status necessitates transition to active production parts. The 100 PSI-D-4V-ASCX provides the most direct path with minimal circuit redesign, while the TruStability® SSC alternatives offer enhanced performance specifications for new designs.

Frequently Asked Questions (FAQ)

Q: Can the SSCSNBN100PGAA5 or SSCDRRN100PGAB5 directly replace the ASCX100DN?

A: Direct replacement is not recommended without application review. The ASCX100DN measures differential pressure, while the SSCSNBN100PGAA5 and SSCDRRN100PGAB5 measure vented gauge pressure. These are different measurement types. Substitution is only valid if the application circuit can function with gauge pressure measurement instead of differential measurement.

Q: What is the primary difference between the 100 PSI-D-4V-ASCX and ASCX100DN?

A: Both are differential pressure sensors with identical pressure ratings, output ranges, and operating temperatures. The primary differences are: (1) manufacturer (Amphenol versus Honeywell), (2) package type (4-SIP versus 6-SIP), requiring PCB layout modification, and (3) product status (active versus obsolete). The 100 PSI-D-4V-ASCX is the recommended equivalent for direct functional replacement.

Q: Why does the SSCDRRN100PGAB5 have a different port size?

A: The SSCDRRN100PGAB5 uses a 0.08" (1.93mm) male barbed tube port, compared to the ASCX100DN's 0.19" (4.8mm) barbless port. This difference requires pneumatic tubing and connector redesign. The SSCSNBN100PGAA5 maintains the 0.19" port size and barbless style, making it more suitable if port compatibility is a design constraint.

Q: Are all substitute parts RoHS compliant?

A: Yes. The ASCX100DN is RoHS Compliant, the 100 PSI-D-4V-ASCX is ROHS3 Compliant, and both SSCSNBN100PGAA5 and SSCDRRN100PGAB5 are RoHS Compliant. All parts meet current environmental compliance requirements.

Q: What is the impact of the package change from 6-SIP to 4-SIP?

A: The 100 PSI-D-4V-ASCX uses a 4-SIP package instead of the ASCX100DN's 6-SIP module. This requires PCB footprint modification and potential circuit board layout changes. Pin count and electrical connections differ, necessitating schematic and layout review before implementation.

Q: Can the ASCX100DN operate with 5V supply voltage?

A: Yes. The ASCX100DN operates across 4.5V ~ 16V supply voltage range, which includes standard 5V supplies. The 100 PSI-D-4V-ASCX operates across 4.5V ~ 5.5V, also compatible with 5V supplies. The SSCSNBN100PGAA5 and SSCDRRN100PGAB5 operate across 4.75V ~ 5.25V, requiring tighter supply voltage regulation.

Q: What accuracy improvement is available with substitute parts?

A: The ASCX100DN provides ±1% accuracy. The 100 PSI-D-4V-ASCX improves to ±0.5%, while the SSCSNBN100PGAA5 and SSCDRRN100PGAB5 offer ±0.25% accuracy. Enhanced accuracy is available through the TruStability® SSC series, though this requires functional compatibility verification for gauge versus differential pressure measurement.

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