LS T67B-S1T2-1-Z Equivalent & Substitute Parts

Part Overview

The LS T67B-S1T2-1-Z is a red LED indication component manufactured by ams-OSRAM USA INC. in the TOPLED® series. This surface-mount 2-PLCC discrete LED operates at 2.1V forward voltage with a dominant wavelength of 633nm and delivers 315 millicandela at 30mA test current. The component is Active in product status and ROHS3 compliant. Substitute parts are identified when equivalent optical, electrical, and mechanical parameters are available from alternative manufacturers, enabling design flexibility and supply chain continuity.

Substiute Parts

LS T67B-S1T2-1-Z

ams-OSRAM USA INC.In Stock: 771LS T67B-S1T2-1-Z Datasheet

Current PartRFQ

XZM2ACR45SB

SunLEDIn Stock: 782XZM2ACR45SB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LS T67B-S1T2-1-Z is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Package type: 2-PLCC
• Mounting type: Surface Mount
• Lens color and transparency: Colorless, Clear
• Lens style: Round with Flat Top
• Lens size: 2.40mm diameter
• Physical dimensions: 3.20mm L x 2.80mm W, 2.10mm height maximum
• Color family: Red
• Viewing angle: 120°
• Compliance: ROHS3 Compliant, REACH Unaffected

Allowable Parameter Variance:

• Wavelength - Dominant: Red spectrum (625–633nm acceptable)
• Wavelength - Peak: Red spectrum (640–645nm acceptable)
• Voltage - Forward (Vf): 2.1–2.2V typical
• Current - Test: 20–30mA
• Millicandela Rating: 315–347mcd

The substitute part XZM2ACR45SB from SunLED meets all mandatory matching criteria and operates within allowable electrical and optical variance ranges.

Parameter Comparison

Engineering Selection Recommendations

LS T67B-S1T2-1-Z (Primary Component):

• Active product status with established supply
• ROHS3 compliant and REACH unaffected
• Moisture Sensitivity Level 2 provides extended storage capability (1 year)
• Bulk packaging suitable for standard inventory management

XZM2ACR45SB (Substitute Component):

• Active product status with confirmed availability
• ROHS3 compliant and REACH unaffected
• Identical mechanical and optical form factor
• Electrical parameters within acceptable variance for red LED indication applications
• Moisture Sensitivity Level 3 requires adherence to 168-hour storage window from package opening
• Tape & Reel packaging format suitable for automated assembly processes
• Higher millicandela rating (347mcd vs. 315mcd) provides increased luminous intensity

Both components satisfy regulatory compliance requirements and are suitable for direct substitution in surface-mount red LED indication circuits where the specified parameter tolerances are acceptable.

Frequently Asked Questions (FAQ)

Q: Can XZM2ACR45SB replace LS T67B-S1T2-1-Z in existing designs?

A: Yes. Both components share identical package type (2-PLCC), physical dimensions (3.20 x 2.80 x 2.10mm), lens configuration (2.40mm round with flat top), and mounting method (surface mount). Electrical parameters (Vf, test current, luminous intensity) fall within acceptable variance for red LED indication applications.

Q: What is the significance of the 0.1V difference in forward voltage?

A: The LS T67B-S1T2-1-Z operates at 2.1V typical while XZM2ACR45SB operates at 2.2V typical. This 0.1V variance is within standard LED tolerance ranges and does not require circuit redesign for typical indication applications. Series resistor values may require minor adjustment if precise current limiting is critical.

Q: Why does XZM2ACR45SB have a lower test current (20mA vs. 30mA)?

A: Test current specifications define the conditions under which luminous intensity is measured. The XZM2ACR45SB achieves higher brightness (347mcd) at lower test current (20mA), indicating superior luminous efficiency. This does not prevent substitution; it indicates the component can deliver equivalent or greater brightness at reduced power consumption.

Q: What is the impact of Moisture Sensitivity Level differences?

A: LS T67B-S1T2-1-Z carries MSL 2 (1-year storage window), while XZM2ACR45SB carries MSL 3 (168-hour storage window). MSL 3 components require baking and moisture control procedures if storage exceeds 168 hours from package opening. Manufacturing processes must accommodate this shorter window.

Q: Are the wavelength differences significant?

A: Dominant wavelength differs by 8nm (633nm vs. 625nm) and peak wavelength by 5nm (645nm vs. 640nm). Both fall within the red spectrum and are visually indistinguishable in indication applications. Wavelength selection depends on specific application requirements; both are suitable for standard red LED indication.

Q: What packaging format difference exists between these components?

A: LS T67B-S1T2-1-Z is supplied in bulk packaging, while XZM2ACR45SB is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated pick-and-place assembly. Bulk packaging is suitable for manual assembly or lower-volume production. Format selection depends on manufacturing process requirements.

Q: Are both components compliant with environmental regulations?

A: Yes. Both LS T67B-S1T2-1-Z and XZM2ACR45SB are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions for electronic components.