PL-624-R-BX Equivalent & Substitute Parts

Part Overview

The PL-624-R-BX is a pilot light LED indicator manufactured by Littelfuse Inc., designed for 24V DC applications with a red lamp color and round domed lens. This component features a 0.250" (6.3mm) quick connect termination and a 0.55" (13.97mm) round panel cutout. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and redesign applications where continued operation is required.

Substiute Parts

PL-624-R-BX
Littelfuse Inc.In Stock: 901PL-624-R-BX Datasheet
PL-624-R-BX
Current Part
Q14P1CXXHR24E
APEM Inc.In Stock: 1197Q14P1CXXHR24E Datasheet
Q14P1CXXHR24E
MFR Recommended

Key Parameters

Parameter Value
Manufacturer Part Number PL-624-R-BX
Manufacturer Littelfuse Inc.
Series PL-624
Product Status Obsolete
Type LED
Lamp Color Red
Voltage Rating 24V DC
Panel Cutout Shape Round
Panel Cutout Dimensions 0.55" (13.97mm)
Lens Style Round with Domed Top
Termination Style Quick Connect - 0.250" (6.3mm)
Ratings DC
ECCN EAR99
HTSUS Code 8541.41.0000

Substitute Part Grouping Explanation

Substitution of the PL-624-R-BX is determined by the following critical parameters that must remain consistent:

  • Voltage Rating: 24V DC operation
  • Lamp Color: Red indicator function
  • Panel Cutout Dimensions: 0.55" (13.97mm) round opening for mechanical fit
  • Lens Style: Round with domed top for visual consistency
  • Termination Style: Quick connect interface for electrical connection
  • Type: LED technology

The substitute part Q14P1CXXHR24E from APEM Inc. satisfies all these core requirements while maintaining mechanical and electrical compatibility with the original PL-624-R-BX installation.

Parameter Comparison

Parameter PL-624-R-BX (Littelfuse) Q14P1CXXHR24E (APEM)
Manufacturer Part Number PL-624-R-BX Q14P1CXXHR24E
Manufacturer Littelfuse Inc. APEM Inc.
Product Status Obsolete Active
Type LED LED
Lamp Color Red Red
Voltage Rating 24V DC 24V DC
Current Not specified 20mA
Panel Cutout Shape Round Round
Panel Cutout Dimensions 0.55" (13.97mm) 0.55" (13.97mm)
Lens Style Round with Domed Top Round with Domed Top
Lens Color Not specified Red
Lens Transparency Not specified Diffused
Termination Style Quick Connect - 0.250" (6.3mm) Quick Connect - 0.110" (2.8mm)
Millicandela Rating Not specified 2800mcd
Ingress Protection Not specified IP67
ECCN EAR99 EAR99
HTSUS Code 8541.41.0000 8541.41.0000
RoHS Status Not specified ROHS3 Compliant
REACH Status Not specified REACH Unaffected

Engineering Selection Recommendations

The Q14P1CXXHR24E is the designated manufacturer-recommended substitute for the obsolete PL-624-R-BX. Selection of this substitute is supported by the following factors:

Product Status: The Q14P1CXXHR24E maintains active production status, ensuring continued availability and supply chain reliability compared to the obsolete PL-624-R-BX.

Compliance & Certifications: The Q14P1CXXHR24E carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components in industrial and commercial applications.

Mechanical Compatibility: Both components share identical panel cutout dimensions (0.55" / 13.97mm) and lens style (round with domed top), enabling direct mechanical substitution in existing panel installations.

Electrical Compatibility: Both components operate at 24V DC with identical voltage ratings and DC ratings classification, ensuring functional equivalence in circuit applications.

Termination Interface: Both components utilize quick connect termination, though connector pin sizes differ (0.250" vs. 0.110"). Connector adaptation may be required depending on existing wiring harness specifications.

Frequently Asked Questions (FAQ)

Q: Can the Q14P1CXXHR24E directly replace the PL-624-R-BX without panel modification?

A: Yes, the Q14P1CXXHR24E fits the same 0.55" (13.97mm) round panel cutout as the PL-624-R-BX. No panel drilling or enlargement is required for mechanical installation.

Q: What is the difference in quick connect termination between these two parts?

A: The PL-624-R-BX uses 0.250" (6.3mm) quick connect terminals, while the Q14P1CXXHR24E uses 0.110" (2.8mm) quick connect terminals. Existing wiring harnesses may require connector replacement or adapter use to achieve proper electrical connection.

Q: Are both parts suitable for 24V DC applications?

A: Yes, both the PL-624-R-BX and Q14P1CXXHR24E are rated for 24V DC operation and are classified under DC ratings.

Q: What is the operational current requirement for the substitute part?

A: The Q14P1CXXHR24E operates at 20mA. The original PL-624-R-BX current specification was not provided in available documentation.

Q: Does the Q14P1CXXHR24E offer improved environmental protection?

A: Yes, the Q14P1CXXHR24E carries an IP67 ingress protection rating, providing enhanced sealing against dust and moisture compared to the PL-624-R-BX, for which ingress protection specifications were not documented.

Q: Are there regulatory compliance differences between the original and substitute?

A: The Q14P1CXXHR24E is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. Compliance status for the obsolete PL-624-R-BX was not specified in available documentation.

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