MLH300PSB02A Equivalent & Substitute Parts

Part Overview

The MLH300PSB02A is a sealed gauge pressure sensor manufactured by Honeywell Sensing and Productivity Solutions. This component is classified as obsolete and has been superseded in active production. The sensor delivers amplified analog voltage output (0.5 V to 4.5 V) for pressure measurements up to 300 PSI in industrial automation applications. Due to its obsolete status, identifying functionally equivalent active production alternatives is essential for system maintenance, redesign, and procurement continuity.

Substiute Parts

MLH300PSB02A

Honeywell Sensing and Productivity SolutionsIn Stock: 1077MLH300PSB02A Datasheet

Current PartRFQ

MLH300PSB01A

Honeywell Sensing and Productivity SolutionsIn Stock: 940MLH300PSB01A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MLH300PSB02A is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Sealed gauge pressure type
• 300 PSI operating pressure rating
• 0.5 V to 4.5 V analog voltage output
• ±0.25% accuracy specification
• 5 V to 6 V supply voltage requirement
• Amplified output with temperature compensation
• Packard Metripak 150 termination
• 900 PSI maximum pressure rating
• -40°C to 125°C operating temperature range
• Cylinder metal package configuration
• RoHS compliance

Variable Parameters (Non-Critical for Substitution):

• Port size and style (threaded connections may differ: M12 x 1.5 versus 1/4" NPT)
• Product status (obsolete versus active production)
• Packaging format (bulk versus other configurations)

The MLH300PSB01A qualifies as a direct substitute based on complete alignment of all mandatory parameters. The primary difference is the port connection type: the MLH300PSB02A uses a male M12 x 1.5 threaded port, while the MLH300PSB01A uses a male 1/4" NPT threaded port. Both are threaded connection styles suitable for industrial pressure measurement installations.

Parameter Comparison

Engineering Selection Recommendations

The MLH300PSB01A is the active production equivalent of the obsolete MLH300PSB02A. Both components share identical electrical specifications, pressure ratings, output characteristics, and environmental operating ranges. Selection between these parts is determined by port connection requirements:

MLH300PSB02A Selection Criteria:

• Existing installations with M12 x 1.5 threaded port connections
• Legacy system maintenance where port compatibility is fixed
• Note: This part is obsolete and subject to limited availability

MLH300PSB01A Selection Criteria:

• New designs and system implementations
• Installations requiring 1/4" NPT threaded port connections
• Preferred choice for ongoing procurement due to active production status
• Ensures long-term supply chain continuity and support

Both parts carry RoHS compliance certification and identical MSL ratings, confirming environmental and regulatory equivalence. The choice between M12 x 1.5 and 1/4" NPT port styles is a mechanical interface decision that does not affect sensor performance, accuracy, or electrical output characteristics.

Frequently Asked Questions (FAQ)

Q: Can MLH300PSB01A directly replace MLH300PSB02A in existing installations?

A: Electrical and functional replacement is complete. However, the port connection type differs: MLH300PSB02A uses M12 x 1.5 threading, while MLH300PSB01A uses 1/4" NPT threading. Physical installation compatibility depends on the existing port adapter or manifold configuration. Mechanical interface verification is required before installation.

Q: Why is MLH300PSB02A listed as obsolete?

A: The MLH300PSB02A has been superseded by the MLH300PSB01A in Honeywell's active product line. The obsolete designation indicates that the manufacturer no longer produces this specific variant, though existing inventory may remain available through authorized distributors.

Q: Are the electrical output characteristics identical between these two parts?

A: Yes. Both sensors deliver 0.5 V to 4.5 V analog voltage output with ±0.25% accuracy, operate on 5 V to 6 V supply voltage, and include amplified output with temperature compensation. The output signal conditioning and electrical interface are functionally equivalent.

Q: What is the significance of the Packard Metripak 150 termination?

A: Packard Metripak 150 is the electrical connector standard for both parts. This standardized termination ensures compatibility with existing wiring harnesses and connector assemblies designed for MLH series pressure sensors.

Q: Can these sensors be used interchangeably in sealed gauge pressure measurement applications?

A: Yes, for sealed gauge pressure measurement up to 300 PSI with -40°C to 125°C operating conditions. The sealed gauge type means both sensors measure pressure relative to a sealed reference, not atmospheric pressure. Functional interchangeability is confirmed across all electrical and environmental parameters.

Q: What is the difference between M12 x 1.5 and 1/4" NPT port connections?

A: Both are threaded mechanical connections for pressure port installation. M12 x 1.5 is a metric thread specification (12 mm diameter, 1.5 mm pitch), while 1/4" NPT is a National Pipe Thread standard (1/4 inch diameter). The choice depends on the pressure manifold or adapter configuration in the target installation.

Q: Are there any compliance or certification differences between these parts?

A: No. Both MLH300PSB02A and MLH300PSB01A carry identical RoHS compliance certification, MSL rating of 1 (Unlimited), and equivalent regulatory classifications (ECCN: EAR99, HTSUS: 9026.20.4000).