VLDB1232RG-08 Equivalent & Substitute Parts

Part Overview

The VLDB1232RG-08 is a blue 465nm LED indication component manufactured by Vishay Semiconductor Opto Division, configured as a 3V 2-SMD surface mount device with a round domed lens. This part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity. The component delivers 3500mcd at 20mA test current with an 18° viewing angle and is housed in a 2.30mm × 2.30mm package with a maximum height of 3.12mm.

Substiute Parts

VLDB1232RG-08

Vishay Semiconductor Opto DivisionIn Stock: 1076VLDB1232RG-08 Datasheet

Current PartRFQ

VLDB1232G-08

Vishay Semiconductor Opto DivisionIn Stock: 13645VLDB1232G-08 Datasheet

Parametric EquivalentRFQ

AM2520QBC/D03

KingbrightIn Stock: 2495AM2520QBC/D03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the VLDB1232RG-08 is determined by strict alignment of the following critical parameters:

Parametric Equivalent (Direct Substitute): The VLDB1232G-08 qualifies as a parametric equivalent based on identical specifications across all functional and mechanical parameters: 465nm dominant wavelength, 3V forward voltage, 3500mcd intensity, 18° viewing angle, 2-SMD gull wing package, and matching physical dimensions. The primary distinction is packaging format (tape & reel versus bulk) and active product status. Height variance of 0.10mm (3.02mm vs 3.12mm) remains within acceptable tolerance for surface mount applications.

Similar Substitute (Cross-Compatible): The AM2520QBC/D03 from Kingbright functions as a similar substitute with the following parameter alignment: identical 465nm dominant wavelength, 460nm peak wavelength, blue color, 2-SMD gull wing package, and surface mount configuration. Acceptable variances include forward voltage (3.3V vs 3V), millicandela rating (900mcd vs 3500mcd), viewing angle (20° vs 18°), lens size (1.90mm vs 1.80mm), and physical dimensions (2.50mm × 2.00mm vs 2.30mm × 2.30mm). These differences require circuit-level evaluation for brightness and optical coverage requirements.

Parameter Comparison

Engineering Selection Recommendations

VLDB1232G-08 Selection Criteria: The VLDB1232G-08 is the primary substitute for the obsolete VLDB1232RG-08. Both components share identical electrical and optical specifications, with the VLDB1232G-08 offering active product status and established supply chain availability. The packaging difference (tape & reel format) accommodates automated assembly processes. Moisture sensitivity levels are equivalent at 2A classification. This substitute requires no circuit modifications and provides direct functional replacement.

AM2520QBC/D03 Selection Criteria: The AM2520QBC/D03 serves as an alternative when VLDB1232G-08 availability is constrained. Selection requires evaluation of the following parameter deviations: forward voltage increase from 3V to 3.3V necessitates circuit-level current limiting adjustment; millicandela reduction from 3500mcd to 900mcd impacts brightness perception in the application; viewing angle expansion from 18° to 20° affects optical coverage; physical dimension variance (2.50mm × 2.00mm) requires PCB layout verification for clearance. Moisture sensitivity classification increases to level 3, requiring adjusted storage and handling protocols. All components maintain ROHS3 compliance and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can VLDB1232G-08 be used as a direct replacement for VLDB1232RG-08? A: Yes. The VLDB1232G-08 is a parametric equivalent with identical electrical and optical specifications. The only differences are packaging format and product status. No circuit modifications are required.

Q: What are the key differences between VLDB1232G-08 and AM2520QBC/D03? A: The VLDB1232G-08 maintains identical specifications to the original part. The AM2520QBC/D03 differs in forward voltage (3.3V vs 3V), brightness (900mcd vs 3500mcd), viewing angle (20° vs 18°), physical dimensions, and moisture sensitivity level (3 vs 2A). These differences require application-level evaluation.

Q: Does the 0.10mm height difference between VLDB1232RG-08 and VLDB1232G-08 affect PCB assembly? A: No. The height variance of 0.10mm (3.12mm to 3.02mm) is within standard surface mount assembly tolerances and does not require PCB layout modifications.

Q: What impact does the AM2520QBC/D03 brightness reduction have on system performance? A: The AM2520QBC/D03 delivers 900mcd compared to 3500mcd for the original part, representing a 74% reduction in luminous intensity. Applications requiring specific brightness levels must evaluate this reduction against visibility requirements.

Q: Are all substitute parts RoHS3 compliant? A: Yes. Both VLDB1232G-08 and AM2520QBC/D03 maintain ROHS3 compliance, matching the original VLDB1232RG-08 specification.

Q: How does the moisture sensitivity level change affect handling procedures? A: The VLDB1232RG-08 and VLDB1232G-08 both specify MSL 2A (4 weeks). The AM2520QBC/D03 specifies MSL 3 (168 hours), requiring more stringent moisture control during storage and assembly. Extended bake-out procedures may be necessary before reflow soldering.

Q: Can the AM2520QBC/D03 be used in applications requiring 3500mcd brightness? A: No. The AM2520QBC/D03 delivers 900mcd, insufficient for applications requiring 3500mcd brightness levels. The VLDB1232G-08 is the appropriate substitute for brightness-critical applications.