LO T67F-V2AB-34-1-20-R18-Z Equivalent & Substitute Parts

Part Overview

The LO T67F-V2AB-34-1-20-R18-Z is an orange LED indication component manufactured by ams-OSRAM USA INC. in the TOPLED® series. This discrete 2-PLCC surface mount LED operates at 2.15V forward voltage with a 606nm dominant wavelength and delivers 1350mcd luminous intensity. The component is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this LED.

Substiute Parts

LO T67F-V2AB-34-1-20-R18-Z

ams-OSRAM USA INC.In Stock: 1255LO T67F-V2AB-34-1-20-R18-Z Datasheet

Current PartRFQ

KO DELPS1.22-UGVI-24-H3Q4-20-S

ams-OSRAM USA INC.In Stock: 18858KO DELPS1.22-UGVI-24-H3Q4-20-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LO T67F-V2AB-34-1-20-R18-Z is determined by alignment of the following critical parameters:

Wavelength Compatibility: The substitute part must maintain the dominant wavelength of 606nm and peak wavelength of 610nm to preserve color consistency and optical performance in indication applications.

Color and Lens Properties: Orange color classification with clear lens transparency must be maintained to ensure visual consistency with the original design.

Electrical Characteristics: Forward voltage (Vf) and test current specifications define the operating point. The substitute part operates at 2.3V Vf versus 2.15V for the original, representing a 0.15V increase within typical LED tolerance ranges for the same color family.

Viewing Angle: The 120° viewing angle is preserved across the substitute part, maintaining the optical distribution pattern required for indication applications.

Compliance and Environmental: Both parts maintain ROHS3 compliance and MSL 2 (1 Year) rating, ensuring regulatory and moisture handling requirements are met.

Luminous Intensity: The substitute part delivers 785mcd compared to 1350mcd in the original. This represents a reduction in brightness output and must be evaluated against application requirements.

Package and Mounting: The original uses 2-PLCC package; the substitute uses 2-SMD flat lead package. Both are surface mount technologies with different physical footprints and lead configurations.

Parameter Comparison

Engineering Selection Recommendations

The KO DELPS1.22-UGVI-24-H3Q4-20-S is identified as the manufacturer-recommended substitute for the LO T67F-V2AB-34-1-20-R18-Z. Both components are manufactured by ams-OSRAM USA INC. and maintain identical compliance certifications (ROHS3, EAR99, HTSUS classification).

Product Status Consideration: The original part is classified as Last Time Buy, indicating end-of-life status. The substitute part maintains Active product status with significantly higher inventory availability (18,794 pcs versus 1,191 pcs), supporting long-term supply chain continuity.

Optical Compatibility: Both parts maintain the same dominant wavelength (606nm), peak wavelength (610nm), color classification (orange), lens transparency (clear), and viewing angle (120°). These parameters ensure optical consistency in indication applications.

Electrical Differences: The substitute part operates at 2.3V forward voltage compared to 2.15V in the original, representing a 0.15V increase. Both operate at identical 20mA test current. Circuit designs must accommodate this voltage differential through appropriate current-limiting resistor adjustment.

Luminous Intensity Trade-off: The substitute part delivers 785mcd compared to 1350mcd in the original, representing a 42% reduction in brightness output. Applications requiring the original brightness specification must evaluate whether this reduction is acceptable for the intended indication function.

Package Transition: The original uses 2-PLCC package; the substitute uses 2-SMD flat lead package. This requires PCB layout modification, including footprint redesign and potential reflow profile adjustment. Physical dimensions differ significantly (3.20mm L x 2.80mm W x 2.10mm H for original versus 1.40mm L x 0.80mm W x 0.70mm H for substitute).

Environmental Compliance: Both parts maintain MSL 2 (1 Year) moisture sensitivity rating, requiring identical handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the KO DELPS1.22-UGVI-24-H3Q4-20-S directly replace the LO T67F-V2AB-34-1-20-R18-Z without circuit modification?

A: No. While both parts share identical wavelength, color, and viewing angle specifications, the substitute part operates at 2.3V forward voltage compared to 2.15V in the original. Current-limiting resistor values must be recalculated to accommodate this 0.15V increase. Additionally, the substitute part delivers 785mcd versus 1350mcd, requiring brightness evaluation for the specific application.

Q: What are the package differences between these two parts?

A: The original LO T67F-V2AB-34-1-20-R18-Z uses a 2-PLCC package measuring 3.20mm L x 2.80mm W x 2.10mm H. The substitute KO DELPS1.22-UGVI-24-H3Q4-20-S uses a 2-SMD flat lead package measuring 1.40mm L x 0.80mm W x 0.70mm H. These dimensional differences require PCB footprint redesign and cannot be accommodated through simple pin-to-pin substitution.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both the LO T67F-V2AB-34-1-20-R18-Z and KO DELPS1.22-UGVI-24-H3Q4-20-S maintain ROHS3 compliance, EAR99 export classification, and identical HTSUS tariff codes (8541.41.0000). Both parts carry MSL 2 (1 Year) moisture sensitivity rating.

Q: Why does the substitute part have lower brightness output?

A: The KO DELPS1.22-UGVI-24-H3Q4-20-S delivers 785mcd compared to 1350mcd in the original part. This difference reflects the design characteristics of the TOPLED® E1608 series, which prioritizes miniaturization and reduced package height. Applications must evaluate whether this brightness level is sufficient for the intended indication function.

Q: What is the inventory status difference between these parts?

A: The original LO T67F-V2AB-34-1-20-R18-Z has 1,191 pcs in stock and is classified as Last Time Buy, indicating discontinued production. The substitute KO DELPS1.22-UGVI-24-H3Q4-20-S has 18,794 pcs in stock and maintains Active product status, ensuring long-term availability.

Q: Can the substitute part be used in existing PCB designs without layout changes?

A: No. The package transition from 2-PLCC to 2-SMD flat lead requires complete PCB footprint redesign. The physical dimensions and lead configurations are incompatible with existing 2-PLCC layouts. PCB artwork must be modified and validated before production implementation.

Q: Are the optical properties identical between these two parts?

A: The optical properties are equivalent in terms of wavelength (606nm dominant, 610nm peak), color (orange), lens transparency (clear), and viewing angle (120°). However, the substitute part delivers 42% lower luminous intensity (785mcd versus 1350mcd), which may affect visibility in the application.