Equivalent & Substitute Parts: 6839-10PK

Part Overview

The 6839-10PK is an incandescent lamp manufactured by Visual Communications Company (VCC), classified as an RT-1 Sub-Midget flange-mount lamp rated for 28V operation. This component is designed for applications requiring low-voltage indicator lighting with a clear lens and domed top configuration. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing procurement and system maintenance.

Substiute Parts

6839-10PK

Visual Communications Company - VCCIn Stock: 10156839-10PK Datasheet

Current PartRFQ

6839

CEC IndustriesIn Stock: 10976839 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6839-10PK is determined by the following critical parameters:

Primary Compatibility Criteria:

• Voltage Rating: 28V operation is mandatory for circuit compatibility
• Type: Incandescent lamp technology
• Color: Clear lens specification
• MSCP Output: Luminous intensity within acceptable operational range
• Lead Configuration: Physical mounting interface compatibility

The identified substitute, CEC Industries part number 6839, shares the core electrical specification (28V, incandescent, clear) and maintains comparable light output (0.15 CP versus 0.13 CP). However, the substitute employs a T-1 lens size with F3-6 Bi-Pin base configuration, representing a different physical form factor from the original RT-1 Sub-Midget Flange design. Substitution is valid only when the mechanical envelope and mounting interface of the receiving application can accommodate the T-1 Bi-Pin configuration.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Mechanical Interface): No direct equivalent with identical RT-1 Sub-Midget Flange configuration is provided in the substitute list. The 6839-10PK remains the specified component for applications with fixed RT-1 flange-mount sockets.

For Functional Substitution (Electrical Equivalence with Mechanical Adaptation): The CEC Industries 6839 lamp provides electrical compatibility at 28V with comparable luminous output (0.15 CP). This substitute is suitable only for applications where the receiving circuit or fixture can accommodate the T-1 lens geometry and F3-6 Bi-Pin base connection. Mechanical adaptation or fixture redesign may be required.

Compliance Considerations: The 6839-10PK is ROHS3 compliant with REACH Unaffected status. The substitute part (6839) does not specify RoHS or REACH compliance in the provided data. Verification of regulatory compliance is necessary for applications subject to environmental or procurement standards.

Inventory Status: The 6839-10PK has 976 units in stock (new original). The substitute 6839 has 1012 units available (new original, active status). For discontinued component replacement, the substitute offers ongoing supply availability.

Frequently Asked Questions (FAQ)

Q: Can the CEC Industries 6839 be used as a direct drop-in replacement for the 6839-10PK?

A: No. While both lamps operate at 28V with comparable light output, they have different physical form factors. The 6839-10PK uses an RT-1 Sub-Midget Flange mount, while the 6839 uses a T-1 lens with F3-6 Bi-Pin base. Direct substitution requires mechanical compatibility of the receiving fixture or socket.

Q: What are the electrical differences between these two lamps?

A: Both operate at 28V with incandescent technology and clear lens color. The MSCP output differs slightly (0.13 CP for 6839-10PK versus 0.15 CP for 6839), representing a 15% increase in luminous intensity. This difference is within typical operational tolerance for indicator lamp applications.

Q: Is the CEC Industries 6839 RoHS compliant?

A: RoHS compliance status for the CEC Industries 6839 is not specified in the provided technical data. Confirmation must be obtained from the manufacturer or distributor for applications requiring RoHS certification.

Q: What is the packaging configuration for each part?

A: The 6839-10PK is supplied in a 10-pack configuration. The CEC Industries 6839 is supplied as a box of 10 units. Both provide the same quantity per package.

Q: Are there any lead-free or alternative technology options available?

A: The provided substitute list contains only the CEC Industries 6839 incandescent lamp. No LED or alternative technology substitutes are included in this reference.