KAA3528ESGC Equivalent & Substitute Parts

Part Overview

The KAA3528ESGC is an active-status, surface-mount LED indicator manufactured by Kingbright, featuring independent green and red light emission in a 4-PLCC package. This dual-color discrete LED component operates at 2.2V forward voltage for green and 2V for red, with a 20mA test current and 120° viewing angle. The component is ROHS3 compliant and REACH unaffected, suitable for status indication applications requiring simultaneous or sequential green/red signaling.

Substitute parts are necessary when the primary component experiences supply constraints, extended lead times, or when design flexibility permits alternative manufacturers meeting equivalent electrical and mechanical specifications.

Substiute Parts

KAA3528ESGC

KingbrightIn Stock: 1029KAA3528ESGC Datasheet

Current PartRFQ

AAA3528ESGCT

KingbrightIn Stock: 16896AAA3528ESGCT Datasheet

DirectRFQ

5977701207F

DialightIn Stock: 289925977701207F Datasheet

SimilarRFQ

HSMF-A226-A00J1

Broadcom LimitedIn Stock: 9188HSMF-A226-A00J1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KAA3528ESGC are classified into two categories based on electrical and mechanical compatibility:

Category 1: Direct Electrical Equivalents Parts meeting all critical electrical parameters: forward voltage (2.2V Green, 2V Red), test current (20mA), viewing angle (120°), and package type (4-PLCC). These parts maintain identical or superior optical performance and mechanical footprint compatibility.

Category 2: Functional Alternatives Parts with different color configurations, package types, or optical specifications that do not meet direct substitution criteria but may serve alternative applications.

Key Substitution Criteria:

• Forward voltage tolerance: ±0.2V maximum deviation
• Test current: 20mA fixed requirement
• Package type: 4-PLCC or equivalent SMD configuration
• Viewing angle: 120° minimum
• Mounting type: Surface Mount
• Compliance: ROHS3 and REACH status alignment
• Mechanical footprint: 3.20mm L x 2.80mm W base dimensions

Parameter Comparison

Engineering Selection Recommendations

AAA3528ESGCT (Kingbright) This part qualifies as a direct electrical equivalent to the KAA3528ESGC. It maintains identical forward voltage specifications (2.2V Green, 2V Red), test current (20mA), viewing angle (120°), and 4-PLCC package configuration. The AAA3528ESGCT offers superior millicandela rating (30mcd versus 26mcd) and improved moisture sensitivity level (MSL 3 versus MSL 4), providing enhanced reliability. Mechanical dimensions are identical. Both components are ROHS3 compliant and REACH unaffected. The primary difference is packaging format (Tape & Reel for AAA3528ESGCT versus standard packaging for KAA3528ESGC) and higher inventory availability (16,838 units). This part is suitable for direct substitution in production environments.

5977701207F (Dialight microLED®) This Dialight component operates within acceptable electrical parameters for green/red dual-color indication. Forward voltage for green is 2.1V (0.1V lower than KAA3528ESGC) and red remains at 2V, both within typical circuit tolerance. Test current matches at 20mA. The 4-PLCC package and 120° viewing angle align with the main part. However, the millicandela rating is lower (16mcd versus 26mcd), indicating reduced brightness. Mechanical dimensions show minor variation (3.20mm L x 2.70mm W versus 3.20mm L x 2.80mm W) and height is reduced (1.90mm versus 2.10mm). Moisture sensitivity is superior (MSL 2 versus MSL 4). This part is suitable for applications where reduced brightness is acceptable and where the lower profile height provides design advantage.

HSMF-A226-A00J1 (Broadcom Limited) This part does not qualify as a direct substitute due to fundamental differences in color configuration (Amber and Yellow-Green versus Green and Red) and package type (2-PLCC versus 4-PLCC). Forward voltage is significantly lower (1.9V versus 2.2V/2V), requiring circuit redesign. The 2-PLCC package provides only two leads, incompatible with the 4-lead configuration of the main part. Millicandela ratings are substantially higher (100mcd Amber, 60mcd Yellow-Green), indicating different optical performance. This component is not suitable for direct substitution and should only be considered for applications with different color indication requirements and circuit topology.

Frequently Asked Questions (FAQ)

Q: Can AAA3528ESGCT replace KAA3528ESGC in existing PCB designs? A: Yes. The AAA3528ESGCT maintains identical electrical specifications (2.2V Green, 2V Red forward voltage, 20mA test current) and mechanical footprint (3.20mm L x 2.80mm W, 4-PLCC package). The 0.05mm height difference (2.15mm versus 2.10mm) is within typical PCB assembly tolerances. Packaging format differs (Tape & Reel versus standard), but this affects supply chain only, not circuit performance.

Q: What are the brightness differences between substitute parts? A: The KAA3528ESGC and AAA3528ESGCT both provide 26mcd and 30mcd respectively for green and red. The 5977701207F provides lower brightness at 16mcd for both colors, a 38% reduction. The HSMF-A226-A00J1 is not comparable due to different color configuration. Brightness selection depends on application visibility requirements and ambient light conditions.

Q: Is the 5977701207F suitable for applications requiring high brightness? A: No. The 5977701207F provides 16mcd brightness compared to 26mcd for the KAA3528ESGC, representing a 38% reduction. Applications requiring high visibility in bright ambient conditions should use the KAA3528ESGC or AAA3528ESGCT. The 5977701207F is suitable for low-brightness indicator applications or environments with controlled lighting.

Q: Why is the HSMF-A226-A00J1 listed if it cannot substitute? A: The HSMF-A226-A00J1 is included in the reference for completeness as a related dual-color LED component. It serves different applications requiring Amber and Yellow-Green indication. It is not a functional substitute for green/red indication requirements and requires complete circuit redesign due to different forward voltage (1.9V), package type (2-PLCC), and color configuration.

Q: What is the impact of moisture sensitivity level differences? A: The KAA3528ESGC has MSL 4 (72-hour floor life), while AAA3528ESGCT has MSL 3 (168-hour floor life) and 5977701207F has MSL 2 (1-year floor life). Lower MSL numbers indicate longer shelf life after moisture exposure. For high-volume production with rapid assembly, MSL 3 or MSL 2 components provide greater handling flexibility. For low-volume or intermittent assembly, MSL 4 is acceptable with proper storage conditions.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed parts—KAA3528ESGC, AAA3528ESGCT, 5977701207F, and HSMF-A226-A00J1—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the viewing angle significance for these LED indicators? A: All parts maintain 120° viewing angle, ensuring consistent visibility across a wide range of observation positions. This specification is critical for status indication applications where the LED must be visible from multiple angles. No viewing angle compromise exists among the listed parts.

Q: Can circuit voltage tolerance accommodate the 5977701207F's 2.1V green specification? A: Typical LED indicator circuits accommodate ±0.2V forward voltage variation. The 5977701207F's 2.1V green specification (0.1V lower than KAA3528ESGC's 2.2V) falls within this tolerance. However, circuit design must be verified to confirm adequate current limiting and voltage headroom. Red channel remains at 2V, identical to the main part.