PL-624-A LED Panel Indicator Equivalent & Substitute Parts

Part Overview

The PL-624-A is a pilot light LED panel indicator manufactured by Littelfuse Inc., designed for 24V DC applications with amber lamp color and quick connect termination. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for system maintenance, repair, and redesign applications. The PL-624-A features a round panel cutout of 0.55" (13.87mm) and domed lens style, suitable for standard indicator light installations requiring amber visual feedback in 24V control circuits.

Substiute Parts

PL-624-A

Littelfuse Inc.In Stock: 1077PL-624-A Datasheet

Current PartRFQ

Q14P1CXXHO24E

APEM Inc.In Stock: 841Q14P1CXXHO24E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete PL-624-A is determined by the following critical parameters:

Voltage Compatibility: The substitute must operate at 24V DC to maintain circuit compatibility without modification to power supply or control logic.

Panel Cutout Dimensions: The substitute panel cutout must accommodate the existing 0.55" (13.87mm) round opening in the control panel. This mechanical constraint is non-negotiable for direct replacement without panel modification.

Lens Style and Color: The substitute must provide round domed lens configuration with amber or orange lamp color to maintain visual consistency and operator recognition in the control interface.

Termination Type: Quick connect termination ensures compatibility with existing wiring harnesses and connection points without requiring terminal reconfiguration.

Regulatory Compliance: The substitute must maintain ROHS3 compliance and EAR99 ECCN classification to satisfy procurement and export requirements.

The Q14P1CXXHO24E from APEM Inc. satisfies all substitution criteria through matching voltage rating, panel cutout dimensions, lens style, quick connect termination, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The Q14P1CXXHO24E is the designated manufacturer-recommended substitute for the obsolete PL-624-A. Selection of this substitute is supported by the following engineering factors:

Active Product Status: The Q14P1CXXHO24E maintains active production status with APEM Inc., ensuring long-term availability and supply chain continuity compared to the obsolete PL-624-A.

Regulatory Compliance: Both components maintain ROHS3 compliance and EAR99 ECCN classification, satisfying procurement specifications and export control requirements without modification to compliance documentation.

Mechanical Compatibility: Panel cutout dimensions are functionally equivalent (0.55" nominal), permitting direct installation into existing panel openings without mechanical modification.

Electrical Compatibility: 24V DC voltage rating and LED type ensure direct functional replacement in 24V control circuits without circuit redesign or power supply modification.

Visual Indication: Orange lamp color provides equivalent visual indication function to amber, maintaining operator recognition and control panel consistency.

Termination Consideration: The Q14P1CXXHO24E features 0.110" (2.8mm) quick connect termination compared to the PL-624-A 0.250" (6.3mm) termination. Existing wiring harnesses may require terminal adapter or reconfiguration to accommodate the smaller connector size.

Frequently Asked Questions (FAQ)

Q: Can the Q14P1CXXHO24E be directly installed without any modifications?

A: The Q14P1CXXHO24E is mechanically and electrically compatible with the PL-624-A for panel mounting and 24V circuit operation. However, the termination connector size differs (0.110" versus 0.250"), requiring evaluation of existing wiring harness compatibility. Terminal adapters or harness modification may be necessary.

Q: Why is the lamp color orange instead of amber?

A: Orange and amber lamp colors are functionally equivalent for indicator light applications, providing the same visual distinction in control panel interfaces. The Q14P1CXXHO24E orange diffused lens delivers equivalent operator recognition and status indication function.

Q: Does the substitute maintain the same panel cutout dimensions?

A: Yes. The Q14P1CXXHO24E panel cutout dimension is 0.55" (13.97mm), which is functionally equivalent to the PL-624-A 0.55" (13.87mm) specification. Direct panel installation is supported without enlargement or modification of existing openings.

Q: Are there compliance or certification differences between the two parts?

A: Both components maintain ROHS3 compliance and EAR99 ECCN classification. No compliance documentation changes are required for substitution.

Q: What is the current rating of the substitute?

A: The Q14P1CXXHO24E operates at 20mA, providing adequate current capacity for 24V DC indicator light circuits. Existing circuit current capacity should be verified to confirm compatibility with this specification.

Q: Is the Q14P1CXXHO24E available in production quantities?

A: Yes. The Q14P1CXXHO24E is classified as active product status with APEM Inc., ensuring availability for production and maintenance applications.