H310CSRD LED Circuit Board Indicator Equivalent & Substitute Parts

Part Overview

The H310CSRD is a 3mm LED Circuit Board Indicator manufactured by Bivar Inc., configured as a 3 High red diffused LED assembly. This component is designed for circuit board mounting applications requiring visual status indication with a 1.7V forward voltage and 20mA operating current. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and maintenance applications.

Substiute Parts

H310CSRD

Bivar Inc.In Stock: 747H310CSRD Datasheet

Current PartRFQ

QLA764B-3H

QT Brightek (QTB)In Stock: 1102QLA764B-3H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the H310CSRD is determined by alignment of the following critical parameters:

Configuration Match: Both the main part and substitute maintain a 3 High LED configuration, ensuring mechanical and electrical compatibility within the circuit board assembly.

Optical Characteristics: Red color specification (x 3) and diffused lens type with round domed top geometry are preserved across the substitute, maintaining visual appearance and light distribution properties.

Electrical Parameters: Operating current of 20mA is identical. Forward voltage differs between 1.7V (H310CSRD) and 2V (QLA764B-3H), representing a 0.3V variance within acceptable circuit design tolerances for LED indicator applications.

Physical Dimensions: Both parts utilize 3mm lens diameter in T-1 form factor, ensuring mechanical fit within existing circuit board layouts and component mounting positions.

Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS classifications, confirming equivalent export and tariff treatment.

Environmental Classification: Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating equivalent handling and storage requirements.

The QLA764B-3H substitute is classified as Active product status, providing assured long-term availability compared to the obsolete H310CSRD.

Parameter Comparison

Engineering Selection Recommendations

The QLA764B-3H from QT Brightek (QTB) is a suitable substitute for the obsolete H310CSRD based on the following engineering criteria:

Product Status Alignment: The substitute is classified as Active product status, ensuring continued availability and manufacturing support. The main part H310CSRD is obsolete, making substitution necessary for ongoing production and field maintenance.

Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The substitute provides explicit ROHS3 Compliance and REACH Unaffected status documentation, offering enhanced regulatory traceability for applications requiring compliance verification.

Electrical Compatibility: The 0.3V forward voltage difference (1.7V to 2V) is within standard LED circuit design tolerances. The identical 20mA operating current ensures equivalent power consumption and circuit behavior.

Optical Performance: The substitute maintains red color specification and diffused lens geometry. The 45° wider viewing angle (80° versus 35°) provides enhanced light distribution. The 10mcd lower brightness rating (30mcd versus 40mcd) represents a 25% reduction in luminous intensity, which requires circuit-level evaluation for applications with strict brightness requirements.

Physical Form Factor: Both parts utilize 3mm T-1 lens diameter with round domed top configuration, ensuring mechanical compatibility with existing circuit board layouts and component mounting positions.

Packaging Consideration: The substitute is supplied in Tray packaging with Through Hole, Right Angle mounting configuration, requiring verification of mounting compatibility with the original circuit board design.

Frequently Asked Questions (FAQ)

Q: Can the QLA764B-3H directly replace the H310CSRD without circuit modifications?

A: The QLA764B-3H is electrically compatible with the H310CSRD for standard LED indicator applications. The 0.3V forward voltage difference and identical 20mA current rating allow operation within typical LED circuit designs. However, circuit-level evaluation is required for applications with strict brightness specifications, as the substitute provides 30mcd versus the original 40mcd rating.

Q: What is the significance of the 45° wider viewing angle in the substitute part?

A: The QLA764B-3H provides an 80° viewing angle compared to the H310CSRD's 35° angle. This wider viewing angle increases the horizontal and vertical range from which the LED indicator is visible. Applications requiring a narrower, more directional light beam should evaluate this parameter against specific design requirements.

Q: Are there packaging differences between the main part and substitute?

A: The H310CSRD packaging specification is not provided in the available data. The QLA764B-3H is supplied in Tray packaging with Through Hole, Right Angle mounting configuration. Verification of mounting compatibility with the original circuit board design is required before substitution.

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

A: The H310CSRD has a peak wavelength of 645nm, while the QLA764B-3H has a peak wavelength of 640nm. This 5nm difference is within the standard red LED spectrum and produces visually equivalent red color appearance in circuit board indicator applications.

Q: Does the substitute provide better regulatory compliance documentation?

A: Yes. The QLA764B-3H provides explicit ROHS3 Compliance and REACH Unaffected status documentation. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The substitute offers enhanced compliance traceability for applications requiring regulatory verification.

Q: What is the inventory status of these parts?

A: The H310CSRD has 713 pieces in stock as new original inventory. The QLA764B-3H has 1060 pieces in stock as new original inventory. Both parts are available for immediate procurement.

Q: Are there any moisture sensitivity or handling differences?

A: Both parts carry identical MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling, storage, and environmental requirements. No additional moisture control measures are required when substituting between these parts.