Equivalent & Substitute Parts Reference: H315CYD

Part Overview

The H315CYD is a Circuit Board Indicator LED manufactured by Bivar Inc., configured as a 3 High Yellow (x 3) unit with a 3mm Round Domed Top lens. This part operates at 2.1V with a 20mA current rating and delivers 20mcd luminous intensity. The product is classified as Obsolete, necessitating the identification of equivalent substitute components that maintain functional compatibility while offering continued availability in the supply chain.

Substiute Parts

H315CYD

Bivar Inc.In Stock: 1075H315CYD Datasheet

Current PartRFQ

WP934RZ/3YD

KingbrightIn Stock: 1032WP934RZ/3YD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the H315CYD are evaluated based on the following critical parameters that determine functional equivalency:

Essential Matching Criteria:

• Configuration: 3 High (three LEDs in single package)
• Color: Yellow
• Lens Size: 3mm, T-1
• Lens Style: Round with Domed Top
• Voltage Rating: 2.1V
• Lens Type: Diffused

Allowable Variation Parameters:

• Current Rating: Substitutes may exceed the original 20mA specification
• Millicandela Rating: Luminous intensity values between 15mcd and 20mcd are functionally compatible
• Wavelength - Peak: Yellow wavelengths within 585nm to 590nm maintain color consistency
• Viewing Angle: Specifications between 40° and 45° preserve optical performance
• Lens Finish: Tinted diffused lenses provide equivalent optical performance to standard diffused

Compliance Requirements:

• ECCN and HTSUS classifications remain consistent across substitutes
• Moisture Sensitivity Level: MSL 1 (Unlimited) required

Parameter Comparison

Engineering Selection Recommendations

The WP934RZ/3YD from Kingbright qualifies as a functional substitute for the obsolete H315CYD based on the following engineering criteria:

Configuration and Mechanical Compatibility: Both parts maintain identical 3 High configuration with matching 3mm T-1 lens specifications and Round Domed Top geometry, ensuring drop-in compatibility in existing circuit board layouts.

Electrical Parameters: The WP934RZ/3YD operates at the identical 2.1V rating. The increased 30mA current specification accommodates the original 20mA requirement. Wavelength variation between 585nm and 590nm maintains Yellow color performance. Millicandela ratings of 15mcd versus 20mcd represent a nominal decrease in luminous intensity but remain within acceptable operational parameters for indicator applications.

Regulatory and Compliance Status: Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications, confirming export control and tariff consistency. The WP934RZ/3YD holds ROHS3 Compliance certification, meeting contemporary environmental directives. Moisture Sensitivity Level 1 (Unlimited) is maintained across both parts.

Availability: The WP934RZ/3YD is Active in status with documented inventory availability, providing long-term supply continuity compared to the Obsolete H315CYD.

Frequently Asked Questions (FAQ)

Q: Can the WP934RZ/3YD directly replace the H315CYD in existing designs?

A: Yes. Both parts share identical voltage ratings (2.1V), configuration (3 High), lens geometry (3mm T-1 Round Domed Top), and compliance classifications. The mechanical footprint and through-hole mounting orientation ensure direct substitution in circuit board applications.

Q: How do the millicandela ratings affect substitutability?

A: The H315CYD operates at 20mcd while the WP934RZ/3YD operates at 15mcd. This represents a 25% decrease in luminous intensity. Substitutability depends on application visibility requirements. For indicator applications where relative brightness changes do not compromise system functionality, the substitution is valid. Applications requiring precise brightness levels may require circuit design modifications.

Q: What is the significance of the wavelength difference (585nm versus 590nm)?

A: Both wavelengths fall within the Yellow spectrum. The 5nm variation (585nm to 590nm) produces imperceptible color shifts to human perception and maintains functional consistency for indicator applications. Both are classified as Yellow (x 3).

Q: Why is the current rating higher on the WP934RZ/3YD (30mA versus 20mA)?

A: The higher current specification indicates the maximum allowable current for the WP934RZ/3YD. The original design operates at 20mA, which falls within the 30mA maximum rating of the substitute. This does not require circuit modifications; existing current-limiting resistor values remain valid.

Q: Does the "Diffused, Tinted" lens type of the WP934RZ/3YD differ functionally from the "Diffused" lens of the H315CYD?

A: Both lens types provide diffusion for uniform light distribution. The tinted finish on the WP934RZ/3YD enhances color saturation while maintaining the same optical scattering characteristics. This does not affect substitutability for indicator applications.

Q: Are there compliance differences between these parts?

A: No. Both parts carry identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The WP934RZ/3YD holds ROHS3 Compliance certification, meeting current environmental standards. This represents an improvement in regulatory alignment compared to the obsolete H315CYD.

Q: What viewing angle difference (45° versus 40°) means for applications?

A: The H315CYD provides a 45° viewing angle while the WP934RZ/3YD provides 40°. This 5° reduction produces a slightly narrower cone of visibility. For direct-view indicator applications, this difference is negligible. Applications requiring maximum angular visibility from oblique viewing positions may notice marginal differences in apparent brightness at extreme angles.