Equivalent & Substitute Parts for R7BC-Y/G

Part Overview

The R7BC-Y/G is a bidirectional LED indicator manufactured by Bivar Inc., featuring green and yellow light emission in a rectangular diffused lens configuration. This through-hole component provides discrete indication with 4mcd green and 3mcd yellow brightness ratings. The product is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility for new designs and production continuity.

Substiute Parts

R7BC-Y/G

Bivar Inc.In Stock: 1141R7BC-Y/G Datasheet

Current PartRFQ

WP117GYWT

KingbrightIn Stock: 975WP117GYWT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the R7BC-Y/G is determined by the following critical parameters:

Electrical Compatibility:

• Bidirectional configuration with dual-color (green/yellow) emission
• Forward voltage range: 2.0V to 2.2V for both colors
• Test current: 20mA for both colors
• Wavelength alignment: Green 568nm ±3nm, Yellow 588-590nm

Mechanical Compatibility:

• Through-hole radial mounting type
• Rectangular diffused lens with flat top
• Height constraint: 7.0mm to 7.7mm maximum
• Lens size: 2.0mm to 2.4mm width, 5.0mm to 7.0mm length

Environmental & Compliance:

• Moisture Sensitivity Level 1 (Unlimited)
• ECCN: EAR99
• HTSUS: 8541.41.0000

The WP117GYWT from Kingbright meets all substitution criteria within these parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

The WP117GYWT from Kingbright is a direct functional substitute for the obsolete R7BC-Y/G. Selection is based on the following engineering criteria:

Product Status: The R7BC-Y/G is classified as obsolete, while the WP117GYWT maintains active product status with current manufacturing and supply chain availability.

Electrical Parameters: Forward voltage specifications for both green and yellow emitters fall within acceptable engineering tolerances. The WP117GYWT operates at 2.2V green and 2.1V yellow, compared to 2.1V green and 2.0V yellow for the R7BC-Y/G. Both components operate at identical 20mA test current.

Optical Characteristics: Wavelength alignment is maintained within industry-standard tolerances. The WP117GYWT provides increased brightness ratings (6mcd green, 4mcd yellow) compared to the original (4mcd green, 3mcd yellow), which represents an improvement in indication visibility without requiring circuit redesign.

Mechanical Compatibility: Both components feature identical through-hole radial mounting, bidirectional configuration, and diffused rectangular lens geometry. The WP117GYWT has a reduced lens footprint (5.00mm x 2.00mm versus 7.00mm x 2.40mm) and lower maximum height (7.00mm versus 7.70mm), providing improved PCB layout flexibility.

Compliance & Certifications: Both components share identical ECCN (EAR99), HTSUS classification (8541.41.0000), and Moisture Sensitivity Level 1 (Unlimited). The WP117GYWT carries RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the WP117GYWT directly replace the R7BC-Y/G without circuit modification?

A: Yes. Both components operate at compatible forward voltages (within 0.1V variance) and identical test current (20mA). No circuit redesign is required for direct substitution in existing designs.

Q: What is the significance of the higher millicandela rating in the WP117GYWT?

A: The WP117GYWT provides 6mcd green and 4mcd yellow brightness, compared to 4mcd green and 3mcd yellow in the R7BC-Y/G. This represents a 50% increase in green brightness and 33% increase in yellow brightness, resulting in improved indication visibility. This enhancement does not require circuit modification and operates within standard LED driver specifications.

Q: Are there mechanical compatibility concerns due to the smaller lens size?

A: No. The WP117GYWT features a smaller lens footprint (5.00mm x 2.00mm versus 7.00mm x 2.40mm) and lower height (7.00mm versus 7.70mm). These dimensional reductions provide improved PCB layout flexibility and maintain full mechanical compatibility with through-hole mounting patterns designed for the R7BC-Y/G.

Q: How do the viewing angles compare?

A: The R7BC-Y/G provides a 120° viewing angle, while the WP117GYWT provides 110°. This 10° variance is within acceptable engineering tolerance for indicator applications and does not impact functional compatibility in standard circuit implementations.

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

A: Green wavelength differs by 3nm (568nm versus 565nm), and yellow wavelength is identical (590nm). Both differences fall within industry-standard LED color tolerance specifications and are imperceptible to human vision in indicator applications.

Q: Does the WP117GYWT meet current regulatory requirements?

A: Yes. The WP117GYWT carries RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory standards. Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Q: What is the packaging difference between the two components?

A: The R7BC-Y/G is supplied in standard packaging, while the WP117GYWT is supplied in bulk packaging. Both maintain identical component specifications and electrical characteristics.