Equivalent & Substitute Parts for Dialight 5973007602F

Part Overview

The Dialight 5973007602F is a red LED indication component in 1206 SMD package format, designed for discrete lighting applications. This part operates at 2V forward voltage with 20mA test current and features a 621nm dominant wavelength with 8mcd brightness rating. The product is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent and substitute parts is essential for design continuity, long-term sourcing reliability, and maintaining production schedules when original inventory becomes unavailable.

Substiute Parts

5973007602F

DialightIn Stock: 8945973007602F Datasheet

Current PartRFQ

5973007607NF

DialightIn Stock: 9155973007607NF Datasheet

MFR RecommendedRFQ

LTST-C150KRKT

Lite-On Inc.In Stock: 125170LTST-C150KRKT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5973007602F is determined by the following critical parameters:

Primary Compatibility Criteria:

• Package format: 1206 (3216 Metric) surface mount only
• Color: Red LED indication
• Voltage rating: 2V forward voltage (Vf)
• Test current: 20mA
• Mounting type: Surface mount
• Lens configuration: Rectangle with flat top, colorless lens, clear transparency
• Viewing angle: 130°
• Compliance: ROHS3 compliant, REACH unaffected

Acceptable Variation Range:

• Wavelength - Dominant: 621nm to 631nm (red spectrum range for indication applications)
• Millicandela rating: 8mcd minimum (brightness may exceed original specification)
• Physical dimensions: 3.20mm L x 1.60mm W (standard 1206 footprint)

Two substitute parts meet these criteria and are qualified for direct replacement in circuit designs originally specified for the 5973007602F.

Parameter Comparison

Engineering Selection Recommendations

5973007607NF (Dialight - MFR Recommended): This part is the manufacturer-recommended equivalent from Dialight. It maintains active product status and offers 900 units in current inventory. Selection of this substitute ensures continuity within the Dialight 597 series ecosystem and provides direct manufacturer support for the 5973007602F Last Time Buy condition.

LTST-C150KRKT (Lite-On Inc. - Cross-Manufacturer Substitute): This part provides a qualified cross-manufacturer alternative with significantly higher inventory availability (125,100 units). It maintains identical package format, voltage rating, test current, viewing angle, and lens configuration. The wavelength shift from 621nm to 631nm remains within acceptable red LED indication spectrum parameters. The brightness increase from 8mcd to 54mcd exceeds original specification, making this suitable for applications where increased luminous intensity is acceptable or beneficial. ROHS3 compliance and REACH unaffected status match the original part requirements.

Selection between these substitutes depends on sourcing strategy: manufacturer continuity favors 5973007607NF, while long-term supply security and cost optimization favor LTST-C150KRKT.

Frequently Asked Questions (FAQ)

Q: Can the LTST-C150KRKT replace the 5973007602F in all applications? A: Yes, within the constraints of the provided specifications. The LTST-C150KRKT maintains identical package format, voltage, current rating, viewing angle, and lens configuration. The 54mcd brightness rating exceeds the original 8mcd specification; applications sensitive to brightness levels should evaluate this increase against design requirements.

Q: What is the significance of the wavelength difference between 621nm and 631nm? A: Both wavelengths fall within the red LED indication spectrum. The 631nm wavelength of the LTST-C150KRKT represents a shift toward the orange-red portion of the spectrum compared to the 621nm of the original part. This difference is typically imperceptible in indication applications but should be evaluated if color matching is critical to the end application.

Q: Are there any compliance or certification differences between these parts? A: All three parts listed maintain ROHS3 compliance and REACH unaffected status. No compliance or certification differences exist among the substitutes.

Q: What packaging formats are available for these substitutes? A: The 5973007602F is supplied in Strip packaging. The 5973007607NF packaging format is not specified in available data. The LTST-C150KRKT is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for different production volume requirements.

Q: Which substitute offers the best long-term sourcing security? A: The LTST-C150KRKT provides superior long-term sourcing security with 125,100 units in current inventory and active product status. The 5973007607NF, while manufacturer-recommended, offers lower inventory levels (900 units) and should be evaluated against production volume requirements.