VAOS-C301S9-BW/40 Equivalent & Substitute Parts

Part Overview

The VAOS-C301S9-BW/40 is a 7-segment LED display module manufactured by Visual Communications Company (VCC). This single-character red display operates at 1.8V forward voltage with a 0.30-inch digit height in a 14-DIP package configuration. The product is classified as obsolete, making equivalent substitute parts necessary for ongoing design support, maintenance, and production continuity in applications requiring compatible 7-segment display functionality.

Substiute Parts

VAOS-C301S9-BW/40

Visual Communications Company - VCCIn Stock: 785VAOS-C301S9-BW/40 Datasheet

Current PartRFQ

SC03-12EWA

KingbrightIn Stock: 2316SC03-12EWA Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VAOS-C301S9-BW/40 is determined by the following critical parameters:

Package Compatibility: The substitute part must use the 14-DIP (0.300", 7.62mm) package to ensure direct PCB footprint compatibility and socket interchangeability.

Display Configuration: The substitute must be a single-character 7-segment display with common cathode pin configuration to maintain circuit-level compatibility with existing driver circuits and control logic.

Electrical Parameters: Forward voltage (Vf), test current (20mA), and maximum power dissipation (75mW) establish the operational envelope. Substitute parts must operate within these electrical constraints to function correctly in existing designs without circuit modification.

Physical Dimensions: Digit height of 0.30" (7.62mm) and overall form factor ensure visual consistency and mechanical fit within enclosures and display assemblies.

Color and Wavelength: Red color specification with peak wavelength in the 620–660nm range maintains visual appearance and user interface consistency.

Compliance Standards: RoHS3 compliance and MSL rating of 1 (Unlimited) are required for regulatory adherence and manufacturing process compatibility.

The SC03-12EWA from Kingbright meets all substitution criteria and is classified as an active product with current availability.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The SC03-12EWA is the qualified substitute for the VAOS-C301S9-BW/40. Both parts share identical package, pin configuration, display type, and electrical test parameters. The 0.2V forward voltage difference (1.8V vs. 2V) is within standard circuit design tolerance and does not require driver circuit modification.

Compliance Alignment: Both parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), ensuring compatibility with current manufacturing processes and regulatory requirements.

Product Status Advantage: The SC03-12EWA is an active product with current manufacturing and distribution support, eliminating obsolescence risk associated with the VAOS-C301S9-BW/40.

Brightness Consideration: The SC03-12EWA provides 8.1mcd brightness compared to 4mcd for the original part. This increased brightness is a functional enhancement that does not compromise compatibility but may require brightness adjustment in applications with strict luminance specifications.

Wavelength Variance: The SC03-12EWA peak wavelength of 627nm (orange-red) differs from the VAOS-C301S9-BW/40 at 660nm (pure red). Visual appearance will show a slight color shift toward orange. Evaluate this variance against application requirements for color consistency.

Frequently Asked Questions (FAQ)

Q: Can the SC03-12EWA be used as a direct pin-for-pin replacement?

A: Yes. Both parts use the 14-DIP (0.300", 7.62mm) package with identical pin assignments for common cathode 7-segment display operation. No PCB modification is required.

Q: What is the impact of the 0.2V forward voltage difference?

A: The forward voltage difference between 1.8V (VAOS-C301S9-BW/40) and 2V (SC03-12EWA) is within standard circuit design tolerance. Most driver circuits and current-limiting resistor designs accommodate this variance without modification. Verify your specific circuit design if operating near voltage supply limits.

Q: Will the brightness difference affect my application?

A: The SC03-12EWA provides 8.1mcd compared to 4mcd for the original part—approximately double the brightness. If your application requires specific luminance levels, brightness adjustment through driver circuit modification (resistor value adjustment) may be necessary. Evaluate against your display visibility requirements.

Q: Why is the wavelength different?

A: The SC03-12EWA operates at 627nm (orange-red) versus 660nm (pure red) for the VAOS-C301S9-BW/40. This represents a natural variance in LED manufacturing. The color shift is perceptible but both fall within the red spectrum classification. Assess against your application's color consistency requirements.

Q: Is the SC03-12EWA currently available?

A: Yes. The SC03-12EWA is classified as an active product with current manufacturing status, ensuring ongoing availability and supply chain support. The VAOS-C301S9-BW/40 is obsolete and no longer manufactured.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant with MSL rating of 1 (Unlimited). They meet identical regulatory and manufacturing process requirements.

Q: What packaging format is the SC03-12EWA supplied in?

A: The SC03-12EWA is supplied in tube packaging, compared to the original part's standard packaging. Verify tube quantity and handling requirements for your procurement and assembly processes.