Equivalent & Substitute Parts Reference: 7374-10PK

Part Overview

The 7374-10PK is an incandescent lamp manufactured by Visual Communications Company (VCC), designed as a clear, round domed-top indicator light for 28V applications. This component features a bi-pin radial lead configuration with RT-1 3/4 (6mm) lens dimensions and produces 0.15 MSCP (Mean Spherical Candle Power).

The 7374-10PK is discontinued at DiGi Electronics. Locating functionally equivalent substitute components is necessary for ongoing maintenance, repair, and new design applications where 28V incandescent indicator lamps are specified.

Substiute Parts

7374-10PK

Visual Communications Company - VCCIn Stock: 8797374-10PK Datasheet

Current PartRFQ

7374

Keystone ElectronicsIn Stock: 536947374 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Based on the provided substitute list, the part number 7374 from Keystone Electronics has been identified as a substitute reference. However, a critical incompatibility exists between the main part and this substitute:

Substitution Logic Analysis:

The 7374-10PK is an incandescent lamp with the following critical parameters:

• Type: Incandescent light source
• Voltage Rating: 28V
• Lens Configuration: Round domed-top, 6mm
• Lead Configuration: Bi-pin radial .125

The listed substitute part 7374 from Keystone Electronics is a T1 LED standoff spacer/mount with the following characteristics:

• Type: Mechanical spacer/standoff
• Material: Nylon
• Dimension: 0.550" (13.97mm)
• Function: LED mounting hardware

Determination: The substitute part 7374 is not functionally equivalent to the 7374-10PK. The substitute is a mechanical mounting component, not an active light-emitting component. No valid substitution relationship exists based on electrical or functional parameters.

Parameter Comparison

Engineering Selection Recommendations

The 7374-10PK is a discontinued incandescent indicator lamp. The substitute part listed (7374 from Keystone Electronics) does not provide functional equivalence due to fundamental category differences: the main part is an active light source, while the substitute is a passive mechanical component.

For applications requiring the 7374-10PK, the following selection criteria apply:

1. Functional Requirement: An active light-emitting component rated for 28V operation is required. The substitute part cannot fulfill this requirement.

2. Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status. However, compliance alignment alone does not establish functional substitution.

3. Discontinuation Status: The 7374-10PK is discontinued at DiGi Electronics. Direct replacement from VCC inventory or alternative incandescent lamp manufacturers with matching electrical and mechanical specifications (28V, clear lens, RT-1 3/4 6mm, bi-pin radial lead) should be evaluated.

4. Inventory Availability: 857 pieces of the 7374-10PK remain in stock as new original inventory, providing immediate availability for current applications.

Frequently Asked Questions (FAQ)

Q: Can the 7374 from Keystone Electronics replace the 7374-10PK in my application?

A: No. The 7374 is a mechanical LED standoff spacer, not a light-emitting component. It cannot replace the 7374-10PK incandescent lamp in any functional capacity.

Q: Why is the 7374 listed as a substitute if it is not compatible?

A: The 7374 shares only a partial part number designation with the 7374-10PK. This appears to be a data reference error rather than a valid substitution relationship. Functional compatibility requires matching component type, electrical ratings, and operational characteristics.

Q: What parameters must an alternative incandescent lamp match to substitute for the 7374-10PK?

A: A valid substitute must match the following parameters: 28V voltage rating, incandescent type, clear color, round domed-top lens style, RT-1 3/4 (6mm) lens size, and bi-pin radial .125 lead configuration.

Q: Is the 7374-10PK still available for purchase?

A: The 7374-10PK is discontinued at DiGi Electronics. However, 857 pieces remain in stock as new original inventory. Availability through alternative distributors or direct manufacturer contact should be verified for procurement.

Q: Do compliance certifications (RoHS, REACH) affect substitution eligibility?

A: Compliance certifications are necessary but not sufficient for substitution. Both the main part and any substitute must maintain equivalent compliance status. However, functional and electrical parameter matching is the primary substitution criterion.

Q: What is the MSCP rating and why does it matter for substitution?

A: MSCP (Mean Spherical Candle Power) measures luminous intensity. The 7374-10PK produces 0.15 MSCP. A substitute lamp must match this output specification to maintain equivalent brightness in indicator applications.