Dialight 5988090107F Blue LED 0603 SMD Equivalent & Substitute Parts

Part Overview

The Dialight 5988090107F is a blue LED indication component in 0603 (1608 Metric) surface mount package, featuring a 473nm dominant wavelength and 90mcd brightness rating at 20mA forward current. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute components must maintain compatibility with the 0603 package footprint, surface mount assembly process, and the electrical characteristics required for blue LED indication circuits.

Substiute Parts

5988090107F

DialightIn Stock: 9695988090107F Datasheet

Current PartRFQ

5988091107F

DialightIn Stock: 7645988091107F Datasheet

SimilarRFQ

APT1608QBC/D

KingbrightIn Stock: 30128APT1608QBC/D Datasheet

SimilarRFQ

LTST-C193TBKT-5A

LITEONIn Stock: 128195LTST-C193TBKT-5A Datasheet

SimilarRFQ

SML-LXFT0603USBCTR

Lumex Opto/Components Inc.In Stock: 1119SML-LXFT0603USBCTR Datasheet

SimilarRFQ

QBLP601-2IB

QT Brightek (QTB)In Stock: 10920QBLP601-2IB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5988090107F are selected based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Package / Case: 0603 (1608 Metric) — maintains PCB footprint and assembly compatibility
• Color: Blue — preserves optical indication function
• Lens Transparency: Clear — maintains light transmission characteristics
• Mounting Type: Surface Mount — ensures assembly process compatibility
• Lens Style: Rectangle with Flat Top — preserves mechanical fit and optical properties

Secondary Electrical Parameters:

• Voltage - Forward (Vf): Range 2.8V to 4.6V — acceptable for standard LED circuit designs
• Current - Test: 20mA nominal — standard indication current
• Wavelength - Dominant: 465nm to 473nm — blue spectrum range for visual indication
• Viewing Angle: 120° to 140° — acceptable for indication applications
• Millicandela Rating: 15mcd to 140mcd — brightness variation acceptable depending on application requirements

Substitute parts are grouped by their electrical and optical characteristics relative to the main part. Parts with forward voltage within ±0.3V, wavelength within ±8nm, and brightness within the specified range are considered direct substitutes for standard indication applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute - Dialight 5988091107F: This part is the direct manufacturer equivalent with active product status. It maintains identical package, color, lens properties, and forward voltage (3.2V). The wavelength shifts from 473nm to 470nm, remaining within the blue spectrum range. Brightness increases from 90mcd to 140mcd, providing enhanced visibility. All substitute parts listed in the original part specification include this component, confirming its primary substitution role. ROHS3 compliance and identical MSL rating ensure manufacturing compatibility.

Secondary Substitutes - Kingbright APT1608QBC/D and QT Brightek QBLP601-2IB: Both parts maintain the 0603 package, clear lens, and 20mA test current. APT1608QBC/D operates at 3.3V forward voltage with 100mcd brightness and 465nm wavelength. QBLP601-2IB operates at 2.9V with 95mcd brightness and 465nm wavelength. Both are ROHS3 compliant and suitable for standard indication applications. Viewing angle reduction to 120° (APT1608QBC/D) may affect applications requiring wide-angle visibility.

Alternative Substitute - LITEON LTST-C193TBKT-5A: This part operates at reduced forward voltage (2.8V) and test current (5mA), making it suitable for low-power indication circuits. Brightness is significantly reduced to 15mcd. MSL rating of 2A (4 Weeks) requires stricter moisture control during storage and assembly. Use this part only when low-power operation is a design requirement.

Alternative Substitute - Lumex SML-LXFT0603USBCTR: This part operates at elevated forward voltage (4.6V) with 30mcd brightness. Dominant wavelength is not specified; peak wavelength is 470nm. Suitable for applications where higher forward voltage is acceptable and moderate brightness is required.

All substitute parts maintain REACH Unaffected and EAR99 ECCN status, matching the original part's regulatory classification.

Frequently Asked Questions (FAQ)

Q: Can I use LTST-C193TBKT-5A as a direct replacement for 5988090107F?

A: LTST-C193TBKT-5A is a functional substitute for indication applications but operates at significantly different electrical parameters. Forward voltage is 2.8V (versus 3.2V), test current is 5mA (versus 20mA), and brightness is 15mcd (versus 90mcd). Circuit redesign may be required to accommodate the lower current and voltage. Use this part only when low-power operation is a design objective.

Q: What is the difference between 5988090107F and 5988091107F?

A: Both parts are Dialight 0603 blue LEDs with identical forward voltage (3.2V), package, and lens properties. The primary differences are product status (obsolete versus active), wavelength (473nm versus 470nm), and brightness (90mcd versus 140mcd). 5988091107F is the recommended substitute due to its active status and higher brightness.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (5988091107F, APT1608QBC/D, LTST-C193TBKT-5A, SML-LXFT0603USBCTR, QBLP601-2IB) are ROHS3 compliant. The original 5988090107F does not specify RoHS status due to its obsolete classification.

Q: Will substitute parts fit the same PCB footprint?

A: Yes. All substitute parts use the 0603 (1608 Metric) package with identical footprint dimensions (1.60mm L x 0.80mm W). Height variations (0.45mm to 0.75mm) are within standard PCB assembly tolerances and do not affect footprint compatibility.

Q: Which substitute part has the closest brightness to the original?

A: QBLP601-2IB (95mcd) and APT1608QBC/D (100mcd) provide brightness closest to the original 90mcd rating. 5988091107F (140mcd) offers increased brightness. LTST-C193TBKT-5A (15mcd) and SML-LXFT0603USBCTR (30mcd) are significantly dimmer.

Q: What is the impact of viewing angle differences?

A: The original part and most substitutes maintain 140° viewing angle. APT1608QBC/D and SML-LXFT0603USBCTR reduce this to 120°. Narrower viewing angles concentrate light intensity but reduce peripheral visibility. Select based on application requirements for indication visibility range.

Q: Are there any moisture sensitivity concerns with substitute parts?

A: Most substitute parts maintain MSL 3 (168 Hours) rating, matching the original. LTST-C193TBKT-5A uses MSL 2A (4 Weeks), requiring stricter moisture control during storage and assembly. Verify storage conditions and bake-out procedures if using this part.

Q: Can I mix different substitute parts in the same production run?

A: All substitute parts are functionally compatible for standard blue LED indication applications. However, brightness variations (15mcd to 140mcd) and forward voltage differences (2.8V to 4.6V) may result in visible brightness inconsistencies in the final product. Maintain part consistency within a single assembly for uniform optical appearance.