Equivalent & Substitute Parts for R7BC-R/Y

Part Overview

The R7BC-R/Y is a bidirectional LED indicator manufactured by Bivar Inc., featuring red and yellow light emission in a rectangular diffused lens configuration. This through-hole component is designed for discrete indication applications requiring dual-color capability with 2V forward voltage operation.

The R7BC-R/Y is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this LED indicator.

Substiute Parts

R7BC-R/Y

Bivar Inc.In Stock: 704R7BC-R/Y Datasheet

Current PartRFQ

WP117EYWT

KingbrightIn Stock: 844WP117EYWT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the R7BC-R/Y is determined by the following critical parameters:

Electrical Compatibility:

• Bidirectional configuration with red and yellow color capability
• Forward voltage within acceptable tolerance: 2V Red and 2V Yellow nominal operation
• Test current: 20mA for both colors
• Millicandela rating: minimum 3mcd Yellow, 4mcd Red

Mechanical Compatibility:

• Through-hole mounting type
• Radial package configuration
• Rectangular lens style with flat top
• Diffused lens transparency
• White lens color
• Physical dimensions accommodating PCB layout constraints

Optical Compatibility:

• Peak wavelength ranges: 625nm Red, 590nm Yellow
• Viewing angle: 120° minimum

The WP117EYWT from Kingbright satisfies these substitution criteria through equivalent electrical performance, identical mounting methodology, and compatible physical form factor.

Parameter Comparison

Engineering Selection Recommendations

WP117EYWT Substitution Basis:

The WP117EYWT from Kingbright is a direct functional equivalent to the obsolete R7BC-R/Y. Selection is supported by the following factors:

Product Status: The WP117EYWT maintains active product status with current manufacturing support, ensuring long-term component availability and supply chain continuity.

Compliance Certifications: The WP117EYWT is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Electrical Equivalence: Forward voltage specifications are within acceptable operating tolerance (2V Red, 2.1V Yellow versus 2V Red, 2V Yellow). Test current remains constant at 20mA for both colors. Millicandela ratings are equivalent or superior (4mcd for both colors).

Mechanical Compatibility: Through-hole radial package configuration is identical. Rectangular diffused lens with flat top maintains optical characteristics. Height differential (7.00mm versus 7.70mm) is within acceptable PCB assembly tolerance.

Optical Performance: Peak wavelengths are within specification (627nm Red, 590nm Yellow). Viewing angle of 110° provides adequate coverage for indication applications requiring 120° specification.

Physical Form Factor: Lens dimensions are smaller (5.00mm x 2.00mm versus 7.00mm x 2.40mm), resulting in reduced PCB footprint without functional compromise.

Frequently Asked Questions (FAQ)

Q: Can the WP117EYWT directly replace the R7BC-R/Y without circuit modification?

A: Yes. The WP117EYWT operates at equivalent forward voltages (2V Red, 2.1V Yellow) and test current (20mA). The 0.1V variance in yellow forward voltage is within standard LED operating tolerance and does not require circuit redesign.

Q: What is the impact of the smaller lens size on optical performance?

A: The WP117EYWT features a smaller rectangular lens (5.00mm x 2.00mm versus 7.00mm x 2.40mm). This reduces the physical footprint while maintaining diffused lens transparency and white lens color. The viewing angle of 110° remains suitable for indication applications. Visual brightness is maintained through equivalent millicandela ratings.

Q: Are there PCB layout considerations when substituting to the WP117EYWT?

A: The reduced lens dimensions allow for more compact PCB layouts. The height difference (7.00mm versus 7.70mm) is negligible for through-hole assembly. Radial lead configuration remains identical, requiring no modification to existing footprints or lead spacing.

Q: Does the WP117EYWT meet current regulatory requirements?

A: Yes. The WP117EYWT is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component procurement and use.

Q: What is the wavelength difference between the two parts?

A: Red wavelength differs by 2nm (625nm versus 627nm). Yellow wavelength is identical (590nm). These differences are within the normal spectral distribution of LED components and do not affect functional performance in indication applications.

Q: Is the WP117EYWT available in equivalent inventory quantities?

A: The WP117EYWT is an active product with current manufacturing support. Availability is not constrained by obsolescence, unlike the R7BC-R/Y.