SLR343BBT3F Equivalent & Substitute Parts

Part Overview

The SLR343BBT3F is a blue LED indication component manufactured by Rohm Semiconductor, configured as a through-hole radial T-1 package device. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The component operates at 4.6V forward voltage with a 350mcd brightness rating and 468nm peak wavelength, designed for standard LED indication applications requiring clear lens blue light output.

Substiute Parts

SLR343BBT3F

Rohm SemiconductorIn Stock: 823SLR343BBT3F Datasheet

Current PartRFQ

HLMP-KA45-E0000

Broadcom LimitedIn Stock: 6244HLMP-KA45-E0000 Datasheet

SimilarRFQ

HLMP-KA45-J0000

Broadcom LimitedIn Stock: 666HLMP-KA45-J0000 Datasheet

SimilarRFQ

HLMP-NS30-J0000

Broadcom LimitedIn Stock: 6738HLMP-NS30-J0000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SLR343BBT3F are qualified based on the following electrical and mechanical compatibility criteria:

Primary Substitution Parameters:

• Color: Blue
• Lens Transparency: Clear
• Mounting Type: Through Hole
• Package / Case: Radial
• Supplier Device Package: T-1
• Current - Test: 20mA
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Secondary Compatibility Considerations:

• Voltage - Forward (Vf): Substitute parts operate at 3.2V, which is within acceptable tolerance for standard LED indication circuits designed for the 4.6V primary part
• Millicandela Rating: Substitute parts range from 85mcd to 245mcd, providing brightness options for different application requirements
• Wavelength - Peak: Substitute parts operate at 464nm to 468nm, maintaining blue spectrum consistency
• Height (Max): Substitute parts at 6.35mm are within standard through-hole PCB design tolerances

All substitute parts are manufactured by Broadcom Limited and maintain active product status with current inventory availability.

Parameter Comparison

Engineering Selection Recommendations

HLMP-KA45-J0000 is the primary substitute for the SLR343BBT3F. This Broadcom part maintains active product status with 642 units in current inventory. The 245mcd brightness rating provides the closest match to the original 350mcd specification while operating within the same 20mA test current and T-1 through-hole package configuration. The 3.2V forward voltage is compatible with standard LED indication circuit designs. ROHS3 compliance and MSL 1 rating ensure regulatory and environmental compatibility.

HLMP-NS30-J0000 serves as an alternative substitute with 6632 units in inventory. This part offers 240mcd brightness and maintains identical electrical and mechanical compatibility. The 30° viewing angle differs from the 50° angle of HLMP-KA45-J0000, making it suitable for applications requiring narrower light distribution.

HLMP-KA45-E0000 is available as a secondary option with 6160 units in stock. The 85mcd rating is significantly lower than the original specification and is suitable only for applications where reduced brightness is acceptable or required.

All substitute parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can HLMP-KA45-J0000 directly replace SLR343BBT3F in existing designs?

A: Yes. Both parts share identical mounting type (through hole), package configuration (T-1 radial), test current (20mA), and lens properties (clear blue). The 3.2V forward voltage of HLMP-KA45-J0000 is compatible with circuits designed for the 4.6V SLR343BBT3F. PCB layout modifications are not required.

Q: What is the brightness difference between SLR343BBT3F and the substitute parts?

A: SLR343BBT3F operates at 350mcd. HLMP-KA45-J0000 provides 245mcd, and HLMP-NS30-J0000 provides 240mcd. Both substitutes deliver approximately 70% of the original brightness. HLMP-KA45-E0000 delivers 85mcd (24% of original). Application requirements determine which brightness level is appropriate.

Q: Are there viewing angle differences between substitute parts?

A: Yes. HLMP-KA45-J0000 and HLMP-KA45-E0000 offer 50° viewing angles. HLMP-NS30-J0000 offers a narrower 30° viewing angle. The original SLR343BBT3F does not specify a viewing angle. Select based on application light distribution requirements.

Q: Do substitute parts meet the same regulatory standards?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings, matching the original part's compliance profile.

Q: What is the height difference between the original and substitute parts?

A: SLR343BBT3F has a maximum height of 5.70mm. All Broadcom substitutes have a maximum height of 6.35mm. This 0.65mm difference is within standard through-hole PCB design tolerances and does not affect mechanical compatibility.

Q: Which substitute part has the best inventory availability?

A: HLMP-NS30-J0000 has 6632 units in stock, followed by HLMP-KA45-E0000 with 6160 units. HLMP-KA45-J0000 has 642 units available.