LTST-C230CBKT Equivalent & Substitute Parts

Part Overview

The LTST-C230CBKT is a blue 470nm LED indication component in 1206 (3216 Metric) surface mount package with bottom entry configuration. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The component features a clear colorless lens with 20mcd brightness rating and 3.7V forward voltage specification.

Substiute Parts

LTST-C230CBKT

Lite-On Inc.In Stock: 892LTST-C230CBKT Datasheet

Current PartRFQ

LTST-C230TBKT

Lite-On Inc.In Stock: 4675LTST-C230TBKT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of LTST-C230CBKT with LTST-C230TBKT is based on the following alignment criteria:

Matched Parameters:

• Wavelength - Dominant: 470nm (identical)
• Wavelength - Peak: 468nm (identical)
• Color: Blue (identical)
• Lens Transparency: Clear (identical)
• Lens Style: Rectangle with Flat Top (identical)
• Package / Case: 1206 (3216 Metric) (identical)
• Mounting Type: Surface Mount, Bottom Entry (identical)
• Size / Dimension: 3.20mm L x 1.60mm W (identical)
• Height (Max): 1.10mm (identical)
• Current - Test: 20mA (identical)
• Viewing Angle: 130° (identical)
• Moisture Sensitivity Level (MSL): 2A (4 Weeks) (identical)

Differing Parameters:

• Voltage - Forward (Vf) (Typ): 3.7V (main part) vs. 3.3V (substitute)
• Millicandela Rating: 20mcd (main part) vs. 104mcd (substitute)
• Product Status: Obsolete (main part) vs. Active (substitute)

The LTST-C230TBKT maintains identical optical, mechanical, and environmental specifications while offering improved brightness performance and active product status.

Parameter Comparison

Engineering Selection Recommendations

The LTST-C230TBKT is the direct substitute for LTST-C230CBKT. Selection of the substitute is driven by the obsolete status of the main part and the active product status of LTST-C230TBKT, ensuring long-term supply chain continuity.

The substitute maintains identical optical wavelength specifications (470nm dominant, 468nm peak), mechanical form factor (1206 package, 3.20mm x 1.60mm x 1.10mm), and environmental compliance (MSL 2A, REACH Unaffected, EAR99 classification). Both components share identical mounting configuration (surface mount, bottom entry) and viewing angle (130°).

The forward voltage differs at 3.3V (substitute) versus 3.7V (main part), representing a 0.4V reduction. The substitute provides enhanced brightness at 104mcd compared to 20mcd in the main part. Circuit designs must accommodate the lower forward voltage specification of the substitute through appropriate current-limiting resistor adjustment to maintain 20mA test current operation.

Both components maintain identical moisture sensitivity classification (2A, 4 weeks) and regulatory compliance status, supporting direct substitution in existing designs with forward voltage circuit recalculation.

Frequently Asked Questions (FAQ)

Q: Can LTST-C230TBKT directly replace LTST-C230CBKT without circuit modification?

A: Mechanical and optical compatibility is direct. However, the forward voltage difference (3.3V vs. 3.7V) requires recalculation of series current-limiting resistor values to maintain proper LED operation at 20mA test current. Circuit redesign is necessary.

Q: What are the key compatibility criteria for this substitution?

A: Compatibility is established through matching wavelength (470nm dominant), color (blue), lens transparency (clear), package type (1206 / 3216 Metric), mounting configuration (surface mount, bottom entry), and environmental specifications (MSL 2A). The substitute meets all these criteria.

Q: Why is the substitute brighter (104mcd vs. 20mcd)?

A: The millicandela rating difference reflects the substitute's enhanced light output performance. This is a performance improvement that does not affect mechanical or optical compatibility.

Q: Are there packaging differences between these parts?

A: The main part is listed as standard packaging, while the substitute is available in Cut Tape (CT) & Digi-Reel® packaging. Both maintain identical component dimensions and form factor.

Q: What is the impact of the 0.4V forward voltage reduction?

A: The lower forward voltage of LTST-C230TBKT (3.3V) requires adjustment of series resistor values in the circuit to maintain the same LED current. Power supply voltage and circuit topology must be evaluated during redesign.

Q: Are both parts compliant with current regulations?

A: Both components maintain REACH Unaffected status and EAR99 ECCN classification. The substitute carries ROHS3 compliance certification. Both share identical HTSUS classification (8541.41.0000).