E13522 Incandescent Lamp RT-1.5 Wedge 24V Equivalent & Substitute Parts

Part Overview

The E13522 is an incandescent lamp manufactured by JKL Components Corp., designed as a clear, round domed-top indicator light with RT-1 1/2 wedge base configuration operating at 24V. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component sourcing. The lamp's primary application is as a low-intensity indicator or status light in 24V electrical systems, with a mean spherical candle power output of 0.16 MSCP.

Substiute Parts

E13522

JKL Components Corp.In Stock: 851E13522 Datasheet

Current PartRFQ

E85

CEC IndustriesIn Stock: 1087E85 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the E13522 is determined by the following critical parameters:

• Voltage Rating: The substitute must operate within the system's 24V supply specification. The E85 operates at 28V, representing a 4V differential above the original specification.
• Lead Style: Both the main part and substitute utilize wedge-base configuration, ensuring mechanical compatibility with existing lamp sockets.
• Lens Type and Size: The E85 uses T-1.5 lens geometry, which is mechanically similar to the RT-1 1/2 configuration, maintaining form factor compatibility.
• Light Output (MSCP): The E85 produces 0.3 MSCP compared to the E13522's 0.16 MSCP, representing a 1.875x increase in luminous intensity.

The E85 qualifies as a functional substitute based on shared wedge-base architecture and similar lens dimensions, though voltage and light output parameters differ from the original specification.

Parameter Comparison

Engineering Selection Recommendations

The E85 from CEC Industries is an active product, providing supply continuity for the obsolete E13522. Both components are incandescent lamps with wedge-base configuration and similar lens geometry. The E85 operates at 28V nominal voltage versus the E13522's 24V specification. This voltage differential must be evaluated against the application's tolerance for overvoltage operation. The E85 delivers higher luminous intensity (0.3 MSCP versus 0.16 MSCP), which may affect visual indicator brightness in the target application. Selection should be based on the system's ability to accommodate the 4V voltage increase and the acceptability of increased light output for the intended function.

Frequently Asked Questions (FAQ)

Q: Can the E85 be used directly in place of the E13522?

A: Mechanical compatibility is confirmed through shared wedge-base architecture and similar T-1.5/RT-1.5 lens dimensions. However, the 4V voltage differential (28V versus 24V) and increased light output (0.3 MSCP versus 0.16 MSCP) require application-level evaluation before substitution.

Q: What is the significance of the voltage rating difference?

A: The E85 operates at 28V while the E13522 is rated for 24V. Operating the E85 at 24V will reduce its light output and lifespan. Operating the E13522 at 28V would exceed its design specification. System voltage must be confirmed before substitution.

Q: Are the lens sizes compatible?

A: The E85 uses T-1.5 lens geometry with W2X4.6D wedge base, while the E13522 uses RT-1 1/2 lens with wedge base. These are mechanically similar form factors suitable for equivalent socket applications, though exact optical characteristics may differ.

Q: What is the difference in light output between these lamps?

A: The E85 produces 0.3 MSCP compared to the E13522's 0.16 MSCP. This represents approximately 1.875 times greater luminous intensity, which may affect indicator brightness perception in the application.

Q: Is the E85 RoHS compliant?

A: RoHS compliance status for the E85 is not specified in available documentation. The E13522 is confirmed ROHS3 compliant. Compliance verification should be obtained from CEC Industries if regulatory requirements mandate RoHS certification.