LK202-25-USB-FB Character Display Module - Equivalent & Substitute Parts

Part Overview

The LK202-25-USB-FB is a 40-character, 20 x 2 format LCD character display module manufactured by Matrix Orbital. This monochrome LCD module features a 5 x 8 dot character format with USB interface connectivity and operates across a 4.75V to 5.25V supply voltage range. The product is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new design implementations.

Substiute Parts

LK202-25-USB-FB

Matrix OrbitalIn Stock: 831LK202-25-USB-FB Datasheet

Current PartRFQ

LK202-25-USB-FA

Matrix OrbitalIn Stock: 873LK202-25-USB-FA Datasheet

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LK202-25-USB-FG

Matrix OrbitalIn Stock: 1057LK202-25-USB-FG Datasheet

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LK202-25-USB-IY

Matrix OrbitalIn Stock: 961LK202-25-USB-IY Datasheet

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LK202-25-USB-R

Matrix OrbitalIn Stock: 998LK202-25-USB-R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LK202-25-USB-FB is determined by strict alignment across the following critical parameters:

• Character Count & Display Format: All substitutes must maintain 40 characters in 20 x 2 configuration
• Character Dot Matrix: All substitutes must use 5 x 8 dot character format
• Supply Voltage: All substitutes must operate within 4.75V ~ 5.25V range
• Interface: All substitutes must use USB connectivity
• Operating Temperature Range: All substitutes must support 0°C ~ 50°C operation
• Mechanical Compatibility: All substitutes must fit within or match the outline dimensions of 116.00mm x 37.00mm x 29.00mm (or 27.70mm for transmissive variants)
• Dot Size: All substitutes must maintain 0.60mm W x 0.65mm H dot dimensions

The substitute parts listed below meet these core electrical and mechanical requirements. Variations in display type (LCD monochrome vs. FFSTN transmissive), text color, backlight configuration, and product status are secondary parameters that do not prevent functional substitution when core parameters align.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts (LK202-25-USB-FA, LK202-25-USB-FG, LK202-25-USB-IY, LK202-25-USB-R) satisfy the core electrical and mechanical compatibility requirements for the obsolete LK202-25-USB-FB. Each substitute maintains identical character count, display format, character dot matrix, supply voltage range, USB interface, operating temperature range, and dot size specifications.

LK202-25-USB-FA is the closest functional equivalent, maintaining monochrome LCD display type with identical outline dimensions and no backlight configuration. This part carries active product status and RoHS compliance certification.

LK202-25-USB-IY provides monochrome LCD functionality with active status and RoHS compliance, differing only in text color (yellow vs. blue).

LK202-25-USB-FG and LK202-25-USB-R employ transmissive display technology with integrated LED backlighting (green and red respectively) and feature a reduced height dimension of 27.70mm. Both carry active product status and RoHS compliance certification. These variants are suitable for applications requiring enhanced visibility or operation in low-light environments.

All substitute parts are manufactured by Matrix Orbital and carry RoHS compliance certification, supporting environmental regulatory requirements for new designs and system upgrades.

Frequently Asked Questions (FAQ)

Q: Can LK202-25-USB-FA directly replace LK202-25-USB-FB in existing designs?

A: Yes. LK202-25-USB-FA maintains identical electrical specifications (40 characters, 20 x 2 format, 5 x 8 dot matrix, 4.75V ~ 5.25V supply, USB interface, 0°C ~ 50°C operating range) and mechanical dimensions (116.00mm x 37.00mm x 29.00mm). The only difference is text color (amber vs. blue) and active product status versus obsolete status.

Q: What is the difference between the monochrome LCD variants and the transmissive variants?

A: LK202-25-USB-FA and LK202-25-USB-IY use standard LCD monochrome technology without backlight. LK202-25-USB-FG and LK202-25-USB-R employ FFSTN (Double Film Super-Twisted Nematic) transmissive display technology with integrated LED backlighting (green and red respectively). Transmissive variants have a reduced height of 27.70mm versus 29.00mm for monochrome variants and provide enhanced visibility in low-light conditions.

Q: Are all substitute parts RoHS compliant?

A: Yes. All four substitute parts (LK202-25-USB-FA, LK202-25-USB-FG, LK202-25-USB-IY, LK202-25-USB-R) carry RoHS compliance certification. The original LK202-25-USB-FB does not specify RoHS status.

Q: Do the substitute parts require different power supply specifications?

A: No. All substitute parts operate within the identical 4.75V ~ 5.25V supply voltage range as the original LK202-25-USB-FB. Transmissive variants with LED backlighting (LK202-25-USB-FG and LK202-25-USB-R) operate within this same voltage specification.

Q: What is the mechanical compatibility consideration for height differences?

A: The monochrome variants (LK202-25-USB-FA, LK202-25-USB-IY) maintain the original 29.00mm height. The transmissive variants (LK202-25-USB-FG, LK202-25-USB-R) have a reduced height of 27.70mm. This 1.30mm reduction may affect mechanical fit in applications with tight vertical space constraints. Verify mounting bracket and enclosure clearances before substitution.

Q: Can I use LK202-25-USB-FG or LK202-25-USB-R as drop-in replacements if my application requires backlighting?

A: Yes, provided your mechanical design accommodates the 27.70mm height (1.30mm shorter than the original). Both transmissive variants maintain all core electrical parameters and USB interface compatibility. The integrated LED backlighting operates within the 4.75V ~ 5.25V supply range.