Equivalent & Substitute Parts: 1847-10PK Incandescent Lamp

Part Overview

The 1847-10PK is a miniature incandescent lamp manufactured by Visual Communications Company (VCC), designed for applications requiring a 6.3V clear round lamp with domed top and miniature bayonet base. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers. The lamp operates at 6.3V with a mean spherical candle power (MSCP) of 0.38 and features a RT-3 1/4 lens configuration with miniature bayonet lead style.

Substiute Parts

1847-10PK

Visual Communications Company - VCCIn Stock: 10941847-10PK Datasheet

Current PartRFQ

1847

CEC IndustriesIn Stock: 12151847 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1847-10PK is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Must be 6.3V
• Lamp Type: Incandescent technology
• Color: Clear lens
• Lens Size: T-3.25 / RT-3 1/4 dimensional specification
• Base Configuration: Miniature Bayonet (BA9S single contact)
• Optical Output: MSCP of 0.38 candlepower
• Regulatory Compliance: ROHS3 compliance and EAR99 ECCN classification

The substitute part 1847 from CEC Industries meets all specified electrical and mechanical parameters. Both parts share identical voltage rating, MSCP output, lens size designation, and bayonet base configuration. The substitute maintains active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The 1847 from CEC Industries is a direct functional equivalent to the discontinued 1847-10PK. Both components share identical electrical specifications (6.3V rating, 0.38 MSCP output) and mechanical compatibility (miniature bayonet base, T-3.25/RT-3 1/4 lens size). The CEC Industries part maintains active manufacturing status with current inventory availability (1131 pieces in stock), ensuring supply chain continuity.

The primary distinction is packaging: the original 1847-10PK is supplied in a 10-pack configuration, while the substitute 1847 is available in bulk packaging. Both components carry EAR99 ECCN classification for export control purposes. The substitute part is suitable for direct replacement in applications requiring 6.3V incandescent illumination with miniature bayonet base configuration.

Frequently Asked Questions (FAQ)

Q: Can the CEC Industries 1847 directly replace the VCC 1847-10PK?

A: Yes. Both components share identical voltage rating (6.3V), optical output (0.38 MSCP), lens size (T-3.25/RT-3 1/4), and miniature bayonet base configuration. Mechanical and electrical compatibility is confirmed.

Q: What is the difference between RT-3 1/4 and T-3.25 lens designations?

A: RT-3 1/4 and T-3.25 refer to the same physical lens size specification. RT denotes "Round Top" and T denotes "Tubular"; both indicate a 3.25 millimeter diameter lens. These designations are equivalent in miniature lamp specifications.

Q: Does the substitute part meet RoHS compliance requirements?

A: The CEC Industries 1847 does not specify RoHS status in the provided data. If RoHS3 compliance is a mandatory requirement for your application, this must be verified directly with the manufacturer before procurement.

Q: What is the packaging difference between these parts?

A: The original 1847-10PK is packaged as a 10-pack unit. The substitute 1847 is supplied in bulk packaging. Quantity requirements should be evaluated based on application needs and inventory management practices.

Q: Are both parts classified under the same export control regulations?

A: Yes. Both the 1847-10PK and 1847 carry EAR99 ECCN classification, indicating they are subject to the same export control framework.