Dialight 5851313 LED Midget Flange Green 14V - Equivalent & Substitute Parts

Part Overview

The Dialight 5851313 is an LED-based green indicator lamp with midget flange base designed for 14V operation. This component functions as a direct replacement for incandescent midget flange base lamps in indicator light applications. The 5851313 is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The substitute part 5851313F maintains functional compatibility while offering active product status and improved compliance characteristics.

Substiute Parts

5851313

DialightIn Stock: 11585851313 Datasheet

Current PartRFQ

5851313F

DialightIn Stock: 7445851313F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Dialight 5851313F qualifies as a direct substitute based on the following critical parameters:

• Wavelength: 565nm (identical green spectrum)
• Voltage - Forward (Vf): 14V (identical electrical requirement)
• Base Type: Midget Flange (identical mechanical interface)
• Millicandela Rating: 70mcd (identical luminous intensity)
• Configuration: Single (identical electrical configuration)
• Color: Green (identical optical output)
• Series: 585 (same product family)

The primary distinction between these parts is product status and physical size dimension, with the 5851313F representing the active continuation of this product line.

Parameter Comparison

Engineering Selection Recommendations

The 5851313F is the designated substitute for the obsolete 5851313. All critical electrical and optical parameters remain identical, ensuring functional compatibility in existing circuits and assemblies. The 5851313F offers the following advantages:

• Active product status ensures continued availability and supply chain reliability
• ROHS3 compliance satisfies current environmental and regulatory requirements
• Identical electrical specifications (14V forward voltage, 70mcd output, 565nm wavelength) guarantee direct functional replacement
• Midget flange base maintains mechanical compatibility with existing lamp sockets

The physical dimension difference (T - 1 3/4 versus T - 3 1/4) reflects the LED-based design optimization and does not affect electrical or optical performance in standard indicator light applications.

Frequently Asked Questions (FAQ)

Q: Can the 5851313F directly replace the 5851313 in existing assemblies?

A: Yes. The 5851313F maintains identical electrical specifications (14V forward voltage), optical output (70mcd, 565nm green wavelength), and mechanical interface (midget flange base). The physical dimension difference reflects LED design optimization and does not affect functional compatibility.

Q: What is the significance of the RoHS compliance difference?

A: The 5851313 is RoHS non-compliant, while the 5851313F is ROHS3 compliant. For new designs and systems subject to environmental regulations, the 5851313F is the appropriate selection. For legacy system maintenance where RoHS compliance is not mandated, both parts remain functionally equivalent.

Q: Are there packaging considerations when selecting between these parts?

A: The 5851313F is supplied in bulk packaging, while the 5851313 packaging specification is not defined. Bulk packaging is standard for active production parts and supports efficient procurement workflows.

Q: Why is the 5851313 classified as obsolete?

A: The 5851313 has been superseded by the 5851313F within the Dialight 585 series. The 5851313F represents the active product continuation with improved compliance characteristics and ongoing manufacturer support.

Q: What applications are these parts suitable for?

A: Both the 5851313 and 5851313F are designed for incandescent lamp replacement applications and indicator light circuits requiring 14V green LED output with midget flange base mounting.