Equivalent & Substitute Parts: VCC 393 Incandescent Lamp

Part Overview

The VCC 393 is an incandescent lamp designed for 14V applications with a clear round domed top lens configuration and midget groove base. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component sourcing. The part delivers 0.5 MSCP (Mean Spherical Candle Power) output and is housed in an RT-1 3/4 form factor. Due to its obsolete status, substitute parts must maintain electrical and mechanical compatibility across voltage rating, base configuration, and optical characteristics.

Substiute Parts

393

Visual Communications Company - VCCIn Stock: 823393 Datasheet

Current PartRFQ

386

CEC IndustriesIn Stock: 925386 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VCC 393 is determined by strict alignment of the following parameters:

Critical Compatibility Parameters:

• Voltage Rating: Must be 14V
• Lead Style: Must be Midget Groove base configuration
• Lens Type: Must accommodate round domed top optical geometry
• Incandescent Technology: Must be incandescent lamp type
• Color: Must be clear lens

The CEC Industries 386 qualifies as a substitute based on matching voltage rating (14V), lead style (Midget Groove), incandescent technology, and clear lens specification. Both parts operate at identical voltage and share the same base configuration, enabling direct mechanical and electrical compatibility in circuit applications. The T-1.75 lens size of the CEC 386 is dimensionally equivalent to the RT-1 3/4 specification of the VCC 393 within standard incandescent lamp sizing conventions.

Parameter Comparison

Engineering Selection Recommendations

The CEC Industries 386 serves as the primary substitute for the obsolete VCC 393 based on electrical and mechanical parameter alignment. Both components operate at 14V with identical midget groove base configuration, ensuring socket compatibility and circuit integration without modification.

The MSCP output differential (0.5 for VCC 393 versus 0.3 for CEC 386) represents a 40% reduction in luminous intensity. This variation must be evaluated against application requirements. Applications with strict luminous output specifications may require performance validation before deployment.

The CEC 386 is classified as active product status, ensuring ongoing availability and supply chain continuity compared to the obsolete VCC 393. The CEC component carries EAR99 ECCN classification matching the original part, maintaining export compliance consistency.

RoHS compliance status is not specified for the CEC 386. If ROHS3 compliance is a mandatory requirement for your application, this parameter must be confirmed with the supplier before final selection.

Frequently Asked Questions (FAQ)

Q: Can the CEC Industries 386 be used as a direct replacement for the VCC 393 in existing circuits?

A: Yes, from an electrical and mechanical standpoint. Both components share 14V voltage rating and midget groove base configuration. However, the MSCP output difference (0.5 versus 0.3) must be evaluated for your specific application. If luminous intensity is critical to system function, performance testing is necessary.

Q: What is the difference between RT-1 3/4 and T-1.75 lens sizes?

A: These designations represent equivalent lens sizes within incandescent lamp industry standards. RT-1 3/4 and T-1.75 both refer to lamps with 1.75-inch diameter bulbs. The different nomenclature reflects manufacturer conventions but indicates the same physical form factor.

Q: Is the CEC 386 available in the same packaging as the VCC 393?

A: The CEC 386 is supplied in boxes of 10 units. Original packaging specifications for the VCC 393 are not detailed in available documentation. Confirm packaging requirements with your procurement process.

Q: Does the CEC 386 meet RoHS3 compliance requirements?

A: RoHS compliance status is not specified for the CEC 386. If ROHS3 compliance is mandatory for your application, contact the supplier for certification documentation before purchase.

Q: What is the lead time for the CEC Industries 386?

A: Lead time information is not provided in the technical specifications. Contact your component distributor for current availability and delivery schedules.

Q: Are there other substitute options besides the CEC 386?

A: Based on the provided parameter set, the CEC Industries 386 is the identified substitute. Additional alternatives may exist in the market but are not included in this reference documentation.