PM-T44-C3 Equivalent & Substitute Parts

Part Overview

The PM-T44-C3 is an optical sensor manufactured by Panasonic Industrial Automation Sales, designed for through-beam sensing applications with a 0.197" (5mm) sensing distance. This NPN-output module features selectable Dark-ON/Light-ON operation and is supplied with 3-meter wire leads in a slot-type chassis mount configuration. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance and component sourcing.

Substiute Parts

PM-T44-C3

Panasonic Industrial Automation SalesIn Stock: 936PM-T44-C3 Datasheet

Current PartRFQ

PM-T45-C3

Panasonic Industrial Automation SalesIn Stock: 1273PM-T45-C3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The PM-T45-C3 is identified as a substitute for the PM-T44-C3 based on the following critical parameters that determine functional compatibility:

Preserved Parameters (Substitution Basis):

• Sensing Method: Through-Beam (maintained)
• Output Configuration: NPN - Open Collector (compatible with NPN requirement)
• Mounting Type: Chassis Mount (maintained)
• Response Time: 20µs (maintained as primary option)
• Operating Temperature Range: -25°C ~ 55°C (maintained)
• Package Type: Module with Wire Leads (maintained)
• Manufacturer: Panasonic Industrial Automation Sales (same source)
• RoHS Compliance: ROHS3 Compliant (meets or exceeds original requirement)
• MSL Rating: 1 (Unlimited) (maintained)
• ECCN/HTSUS Classification: Identical (EAR99 / 8543.70.9860)

Modified Parameters (Acceptable Variation):

• Sensing Distance: 0.236" (6mm) vs. 0.197" (5mm) — increased by 0.039" (1mm)
• Supply Voltage: 5V ~ 24V (PM-T45-C3) vs. Collector Emitter Breakdown 30V (PM-T44-C3)
• Supply Current: 15 mA (PM-T45-C3) vs. Collector Current 15 mA max (PM-T44-C3)
• Product Status: Active (PM-T45-C3) vs. Obsolete (PM-T44-C3)

The PM-T45-C3 represents an active-production alternative within the same Panasonic PM series optical sensor family, with enhanced availability and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The PM-T45-C3 is the designated substitute for the obsolete PM-T44-C3 based on product lifecycle status and regulatory compliance alignment. The PM-T45-C3 maintains active manufacturing status with Panasonic Industrial Automation Sales, ensuring continued availability and supply chain reliability.

Both parts meet identical export classification (EAR99) and tariff code requirements (HTSUS 8543.70.9860). The PM-T45-C3 carries ROHS3 compliance, which exceeds the original RoHS Compliant designation of the PM-T44-C3, confirming enhanced environmental and regulatory standards.

The primary technical difference is the increased sensing distance of 0.236" (6mm) on the PM-T45-C3 compared to 0.197" (5mm) on the PM-T44-C3. This 1mm increase in sensing range must be evaluated against specific application requirements. Both sensors maintain identical response time at 20µs and identical operating temperature range (-25°C ~ 55°C), ensuring temporal and thermal performance parity.

The PM-T45-C3 operates on a 5V ~ 24V supply voltage with 15 mA supply current, compared to the PM-T44-C3 collector specifications. Both maintain NPN output configuration with unamplified signal processing and chassis mount installation.

Frequently Asked Questions (FAQ)

Q: Can the PM-T45-C3 directly replace the PM-T44-C3 in existing installations?

A: The PM-T45-C3 is functionally compatible as a substitute based on through-beam sensing method, NPN output, identical response time (20µs), matching operating temperature range, and equivalent mounting configuration. The increased sensing distance (6mm vs. 5mm) must be evaluated for your specific application geometry and detection requirements.

Q: What is the primary reason for substitution?

A: The PM-T44-C3 is obsolete. The PM-T45-C3 is an active production part from the same manufacturer within the Panasonic PM series optical sensor family, providing continued availability and supply chain support.

Q: Are there differences in output behavior between the two parts?

A: The PM-T44-C3 features selectable Dark-ON/Light-ON operation, while the PM-T45-C3 operates as NPN Open Collector. Both are NPN-based outputs suitable for industrial control applications. The selectable mode of the PM-T44-C3 must be evaluated against the fixed open-collector configuration of the PM-T45-C3 for your specific circuit design.

Q: Do both parts meet the same regulatory standards?

A: Both parts carry identical ECCN (EAR99) and HTSUS (8543.70.9860) classifications. The PM-T45-C3 carries ROHS3 Compliant status, which meets or exceeds the RoHS Compliant designation of the PM-T44-C3. Both maintain MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the impact of the 1mm increase in sensing distance?

A: The PM-T45-C3 sensing distance is 0.236" (6mm) compared to the PM-T44-C3 at 0.197" (5mm). This represents a 1mm increase in through-beam detection range. Applications with tight spatial constraints or precise object positioning may require evaluation of this parameter against system requirements.

Q: Are the wire lead configurations identical?

A: Both parts are supplied as Module with Wire Leads. The PM-T44-C3 specifies Slot Type configuration, while the PM-T45-C3 does not specify slot type. Physical form factor compatibility must be confirmed for your specific mounting application.

Q: What supply voltage does each part require?

A: The PM-T44-C3 specifies Collector Emitter Breakdown voltage of 30V maximum. The PM-T45-C3 operates on 5V ~ 24V supply voltage. Circuit design must accommodate the PM-T45-C3 supply voltage range for proper substitution.