VCC 338 Incandescent Lamp - Equivalent & Substitute Parts

Part Overview

The VCC 338 is an incandescent lamp designed for applications requiring a 2.7V clear round lamp with domed top configuration and midget flange base. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system support and component procurement.

The lamp is rated at 2.7V with a mean spherical candle power (MSCP) of 0.04 and utilizes an RT-1 3/4 lens size with midget flange lead style. Due to its obsolete status, sourcing direct replacements requires evaluation of active alternative components that maintain electrical and mechanical compatibility.

Substiute Parts

338

Visual Communications Company - VCCIn Stock: 858338 Datasheet

Current PartRFQ

338

CEC IndustriesIn Stock: 1214338 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VCC 338 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• Voltage Rating: 2.7V (exact match required)
• MSCP: 0.04 (exact match required)
• Lamp Type: Incandescent

Mechanical Compatibility:

• Lens Size: RT-1 3/4 or equivalent T-1.75 designation
• Lead Style: Midget Flange (SX6S base configuration)
• Lens Configuration: Round with Domed Top

Regulatory Compliance:

• RoHS3 Compliance
• REACH Unaffected status

The CEC Industries 338 substitute part maintains all critical electrical parameters (2.7V, 0.04 MSCP) and mechanical specifications (T-1.75 lens size with SX6S midget flange base). Both components are incandescent lamps with clear lens configuration and identical voltage/candle power ratings, establishing direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: CEC Industries 338

The CEC Industries 338 is the appropriate substitute for the obsolete VCC 338. Selection is based on the following engineering criteria:

1. Electrical Equivalence: Both components operate at 2.7V with identical 0.04 MSCP output, ensuring direct functional replacement in circuit applications.

2. Mechanical Compatibility: The T-1.75 lens size with SX6S midget flange base provides mechanical interchangeability with the original RT-1 3/4 midget flange configuration.

3. Product Status: The CEC Industries component maintains active product status, ensuring ongoing availability and supply chain continuity.

4. Regulatory Compliance: Both components share EAR99 ECCN classification, maintaining export and regulatory consistency.

5. Inventory Availability: CEC Industries 338 is available in quantity (1176 pcs new original in stock), supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the CEC Industries 338 directly replace the VCC 338 in existing applications?

A: Yes. Both components share identical electrical specifications (2.7V, 0.04 MSCP) and equivalent mechanical configurations (T-1.75/RT-1 3/4 lens size, midget flange base). Direct substitution is supported without circuit modification.

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

A: RT-1 3/4 and T-1.75 are equivalent lens size designations used by different manufacturers. Both refer to the same physical lamp envelope size (1.75 inches in diameter), ensuring mechanical compatibility.

Q: Are there any compliance differences between the VCC 338 and CEC Industries 338?

A: Both components share identical ECCN classification (EAR99) and maintain equivalent regulatory status. No compliance barriers exist for substitution.

Q: Why is the VCC 338 listed as obsolete?

A: Obsolete status indicates the VCC 338 is no longer in active production. The CEC Industries 338 provides functional continuity for applications requiring this lamp specification.

Q: What is the significance of the SX6S base designation on the CEC Industries part?

A: SX6S is the technical designation for the midget flange base configuration. This base type is mechanically and electrically compatible with the original VCC 338 midget flange lead style.

Q: Can inventory of the VCC 338 be used interchangeably with the CEC Industries 338?

A: Yes. The 764 pcs of VCC 338 inventory and the 1176 pcs of CEC Industries 338 inventory are functionally equivalent and can be used interchangeably in applications requiring 2.7V incandescent lamps with 0.04 MSCP output and midget flange configuration.