H310CYDL LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The H310CYDL is a 3mm LED Circuit Board Indicator manufactured by Bivar Inc., configured as a 3-high yellow LED assembly with diffused lens and domed top. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design support and procurement continuity. The part features a 2V operating voltage, 2mA current rating, and 2mcd brightness output, designed for standard through-hole circuit board mounting applications.

Substiute Parts

H310CYDL

Bivar Inc.In Stock: 1111H310CYDL Datasheet

Current PartRFQ

WP934RZ/3YD

KingbrightIn Stock: 1032WP934RZ/3YD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the H310CYDL are identified based on the following critical parameters that determine functional compatibility:

Primary Matching Criteria:

• Configuration: 3-high LED assembly
• Color: Yellow (590nm peak wavelength)
• Lens Size: 3mm, T-1 form factor
• Lens Type: Diffused optical characteristics
• Lens Style: Round with domed top geometry

Allowable Parameter Variations: Substitute parts may differ in the following parameters while maintaining functional equivalence within circuit board indicator applications:

• Voltage Rating: Tolerance range dependent on circuit design (2V to 2.1V acceptable for most applications)
• Current Rating: Higher current capability (30mA vs. 2mA) indicates enhanced brightness potential
• Millicandela Rating: Increased brightness (15mcd vs. 2mcd) represents performance improvement
• Viewing Angle: Slight variation (40° vs. 35°) within acceptable range for indicator applications
• Mounting Type: Right-angle through-hole configuration compatible with standard PCB layouts
• Product Status: Active status ensures ongoing availability and supply chain continuity

Compliance Alignment:

• ECCN: EAR99 (matching export classification)
• HTSUS: 8541.41.0000 (matching tariff classification)
• MSL: 1 (Unlimited) (matching moisture sensitivity level)

Parameter Comparison

Engineering Selection Recommendations

WP934RZ/3YD Substitution Basis:

The Kingbright WP934RZ/3YD qualifies as a functional substitute for the obsolete H310CYDL based on the following engineering criteria:

Mechanical Compatibility: The WP934RZ/3YD maintains identical form factor specifications: 3mm T-1 lens size, round domed-top geometry, and 3-high configuration. Through-hole right-angle mounting accommodates standard PCB layouts designed for the H310CYDL.

Optical Compatibility: Both parts operate at 590nm peak wavelength (yellow spectrum) with diffused lens characteristics. The WP934RZ/3YD features tinted diffusion, which enhances color saturation while maintaining the same optical wavelength specification.

Electrical Compatibility: The voltage rating differential (2V vs. 2.1V) falls within acceptable tolerance for circuit board indicator applications. The increased current capability (30mA vs. 2mA) and brightness output (15mcd vs. 2mcd) represent performance enhancement rather than incompatibility. Circuit designs accommodating the H310CYDL specifications will function with the WP934RZ/3YD.

Regulatory and Compliance Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The WP934RZ/3YD carries active RoHS3 compliance and REACH unaffected status, ensuring regulatory continuity for new designs and procurement.

Supply Chain Status: The WP934RZ/3YD maintains active product status with confirmed inventory availability (948 pcs), providing reliable long-term sourcing compared to the obsolete H310CYDL.

Frequently Asked Questions (FAQ)

Q: Can the WP934RZ/3YD directly replace the H310CYDL in existing circuit designs?

A: The WP934RZ/3YD is electrically and mechanically compatible with designs specified for the H310CYDL. The 0.1V voltage increase and enhanced current/brightness specifications do not create incompatibility. Circuit designs must accommodate the right-angle mounting orientation of the WP934RZ/3YD.

Q: What is the significance of the "3 High" configuration?

A: The "3 High" designation indicates three LED elements stacked vertically within a single 3mm package. Both the H310CYDL and WP934RZ/3YD maintain this configuration, ensuring identical form factor and mounting footprint compatibility.

Q: How do the current ratings (2mA vs. 30mA) affect substitution?

A: The WP934RZ/3YD supports higher current operation (30mA maximum) compared to the H310CYDL (2mA). Existing circuits designed for 2mA operation will function with the WP934RZ/3YD at reduced brightness levels. The substitute part does not require increased current; it accommodates higher current if circuit design permits.

Q: What is the difference between "Diffused" and "Diffused, Tinted" lens types?

A: Both lens types scatter light to provide wide viewing angles. The tinted diffusion in the WP934RZ/3YD adds color saturation to the yellow output while maintaining the same 590nm wavelength specification. Optical performance remains equivalent for circuit board indicator applications.

Q: Are there compliance differences between the two parts?

A: The WP934RZ/3YD carries explicit RoHS3 compliance and REACH unaffected certification. Both parts share identical ECCN and HTSUS classifications. The substitute part provides enhanced regulatory documentation suitable for modern procurement requirements.

Q: Does the 40° viewing angle of the WP934RZ/3YD differ significantly from the 35° of the H310CYDL?

A: The 5° viewing angle increase (40° vs. 35°) represents a minor enhancement in light distribution. This variation does not create incompatibility; it provides slightly broader visibility for indicator applications.

Q: What mounting considerations apply to the right-angle configuration?

A: The WP934RZ/3YD features right-angle through-hole leads, positioning the LED elements perpendicular to the PCB surface. This configuration accommodates standard through-hole mounting on circuit boards designed for right-angle LED indicators. Verify PCB footprint compatibility with right-angle lead geometry.