LED Midget Flange Base 6V Green 5851311

Part Overview

The Dialight 5851311 is an LED midget flange base lamp designed as a green indicator light replacement for 6V applications. This component features a T-1 3/4 form factor with a midget flange base configuration. The main part number 5851311 is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The active variant 5851311F and parametric equivalents from Visual Communications Company (VCC) provide viable alternatives that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

5851311

DialightIn Stock: 9675851311 Datasheet

Current PartRFQ

5851311F

DialightIn Stock: 10415851311F Datasheet

DirectRFQ

MF200-BCG2

Visual Communications Company - VCCIn Stock: 915MF200-BCG2 Datasheet

Parametric EquivalentRFQ

MF200-BCG5H

Visual Communications Company - VCCIn Stock: 1158MF200-BCG5H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Dialight 5851311 is determined by the following critical parameters: base type (midget flange), form factor (T-1 3/4), color (green), wavelength (565nm), and forward voltage rating. Two substitution categories exist:

Direct Manufacturer Equivalent: The 5851311F maintains identical electrical and mechanical specifications to the main part while offering active product status and improved compliance. This part is the primary substitute for direct replacement.

Parametric Equivalents: The VCC MF200-BCG2 and MF200-BCG5H series provide functional substitutes with identical base type, form factor, color, and wavelength. These parts differ in forward voltage rating (2V and 5V respectively) and millicandela output (80mcd), making them suitable only for applications where the circuit voltage can accommodate the alternative forward voltage specification.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The Dialight 5851311F is the recommended substitute. It maintains identical electrical specifications (6V forward voltage, 77mcd output) and mechanical form factor while offering active product status and ROHS3 compliance. This part eliminates obsolescence risk without requiring circuit modifications.

For Voltage-Flexible Applications: The VCC MF200-BCG5H provides a substitute where circuit design permits 5V forward voltage operation. This part offers ROHS3 compliance and equivalent optical performance (80mcd, 565nm wavelength). The MF200-BCG2 is suitable only for 2V applications and should not be selected for 6V circuit designs.

Compliance Considerations: The original 5851311 is RoHS non-compliant. All substitute parts (5851311F, MF200-BCG2, MF200-BCG5H) are ROHS3 compliant, supporting regulatory requirements for new designs and updated systems.

Frequently Asked Questions (FAQ)

Q: Can the 5851311F be used as a direct drop-in replacement for the 5851311?

A: Yes. The 5851311F maintains identical forward voltage (6V), millicandela rating (77mcd), wavelength (565nm), and midget flange base configuration. No circuit modifications are required.

Q: What is the difference between the Dialight 5851311F and the VCC MF200-BCG5H?

A: Both parts share identical base type, form factor, color, and wavelength. The primary differences are manufacturer (Dialight vs. VCC) and forward voltage (6V vs. 5V). The MF200-BCG5H requires circuit voltage adjustment and is suitable only for applications designed for 5V LED operation.

Q: Can the MF200-BCG2 replace the 5851311 in a 6V circuit?

A: No. The MF200-BCG2 is rated for 2V forward voltage and is not suitable for 6V applications. Using this part in a 6V circuit will result in component failure.

Q: Are all substitute parts available in the same packaging as the original?

A: The 5851311 is supplied in standard packaging, while the 5851311F and VCC parts are supplied in bulk packaging. Confirm packaging requirements with your procurement specification.

Q: What is the inventory status for these parts?

A: The 5851311 (obsolete) has 892 units in stock. The 5851311F (active) has 950 units. The MF200-BCG2 has 892 units, and the MF200-BCG5H has 1058 units in stock.