CM313-10PK Equivalent & Substitute Parts Reference

Part Overview

The CM313-10PK is an incandescent lamp manufactured by Visual Communications Company (VCC), designed for 28V applications with a miniature bayonet base. This component features a clear lens with round domed top configuration in T-3 1/4 size format, delivering 3.5 MSCP (Mean Spherical Candle Power). The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing system support and maintenance applications.

Substiute Parts

CM313-10PK

Visual Communications Company - VCCIn Stock: 960CM313-10PK Datasheet

Current PartRFQ

CM313

Visual Communications Company - VCCIn Stock: 3474CM313 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CM313-10PK is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage Rating: 28V
• Type: Incandescent
• Color: Clear
• MSCP: 3.5
• Lead Style: Miniature Bayonet
• Lens Style: Round with Domed Top
• RoHS Compliance: ROHS3 Compliant

Allowable Variation:

• Lens Size designation: T-3 1/4 to RT-3 1/4 (both represent equivalent physical dimensions within miniature bayonet lamp specifications)
• Packaging format (bulk to bag configuration)

The substitute CM313 maintains functional and electrical equivalence while differing only in lens size nomenclature (RT-3 1/4 versus T-3 1/4) and packaging presentation.

Parameter Comparison

Engineering Selection Recommendations

The CM313 serves as a direct functional substitute for the CM313-10PK based on electrical and mechanical parameter equivalence. Both components are manufactured by VCC and maintain identical specifications for voltage rating (28V), light output (3.5 MSCP), optical configuration (clear, round domed top), and base type (miniature bayonet).

The primary distinction between these parts is the lens size designation (T-3 1/4 versus RT-3 1/4) and packaging format. Both designations represent compatible miniature bayonet lamp dimensions within VCC's product line.

From a compliance perspective, both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for applications requiring these certifications.

The CM313 currently carries a "Not For New Designs" status, indicating it remains available for replacement and maintenance applications but is not recommended for new product development initiatives. The CM313-10PK's discontinued status at DiGi Electronics makes the CM313 the appropriate alternative for sourcing equivalent components.

Frequently Asked Questions (FAQ)

Q: Can CM313 directly replace CM313-10PK in existing applications?

A: Yes. Both components share identical electrical specifications (28V, 3.5 MSCP), optical properties (clear, round domed top), and mechanical interface (miniature bayonet base). The lens size designation difference (T-3 1/4 versus RT-3 1/4) does not affect functional compatibility.

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

A: Both designations represent equivalent physical dimensions within VCC's miniature bayonet lamp specifications. The nomenclature variation does not indicate a functional or dimensional incompatibility for socket or optical performance.

Q: Are there compliance differences between CM313-10PK and CM313?

A: No. Both parts maintain identical RoHS3 compliance and REACH unaffected status. No regulatory or certification barriers exist for substitution.

Q: What is the significance of the "Not For New Designs" status on CM313?

A: This designation indicates the part remains available for replacement and maintenance purposes but is not recommended for incorporation into new product designs. For existing systems requiring CM313-10PK, the CM313 remains a valid sourcing option.

Q: Does packaging format affect electrical or optical performance?

A: No. The packaging difference (bulk 10-pack versus bag) is a logistics consideration only and does not impact component functionality, electrical characteristics, or optical output.

Q: What inventory considerations should guide part selection?

A: CM313 currently maintains higher inventory availability (3395 pcs) compared to CM313-10PK (903 pcs). For applications requiring immediate sourcing, CM313 offers superior availability while maintaining complete functional equivalence.