OK202-25-OR OLED Character Display Module – Equivalent & Substitute Parts

Part Overview

The OK202-25-OR is a 40-character OLED display module manufactured by Matrix Orbital, configured as a 20 x 2 character display with integrated communication interfaces (I2C, RS-232, TTL). The module features red text on a black background and operates across an industrial temperature range of -20°C to 70°C.

This part is classified as Obsolete. Locating equivalent or substitute units requires identification of compatible alternatives that maintain electrical and mechanical compatibility while meeting current application requirements.

Substiute Parts

OK202-25-OR

Matrix OrbitalIn Stock: 895OK202-25-OR Datasheet

Current PartRFQ

OK202-25-OW

Matrix OrbitalIn Stock: 831OK202-25-OW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OK202-25-OR is determined by strict equivalence across the following critical parameters:

• Display Configuration: 40 characters, 20 x 2 format
• Display Technology: OLED type
• Physical Dimensions: 116.00mm x 37.00mm x 25.00mm (outline); 85.00mm x 18.60mm (viewing area)
• Character Dimensions: 5.55mm H x 3.20mm W
• Electrical Interface: I2C, RS-232, TTL communication protocols
• Power Supply Range: 4.75V ~ 5.25V
• Operating Temperature Range: -20°C ~ 70°C
• Dot Pitch: 0.60mm W x 0.65mm H

The OK202-25-OW qualifies as a direct substitute based on identical values across all critical parameters. The primary difference is text color (white instead of red) and product status (Active instead of Obsolete).

Parameter Comparison

Engineering Selection Recommendations

OK202-25-OW is the qualified substitute for OK202-25-OR based on the following factors:

• All critical electrical and mechanical parameters are identical
• The substitute maintains Active product status, ensuring ongoing availability and support
• RoHS Compliance certification (OK202-25-OW) provides regulatory alignment for new designs
• The only functional difference is display text color (white vs. red), which is a visual characteristic that does not affect electrical compatibility or interface operation
• Both units share the same base product number (OK202-25), confirming design lineage and compatibility

Selection of OK202-25-OW is appropriate for applications where the original OK202-25-OR is no longer available and text color differentiation is not a critical functional requirement.

Frequently Asked Questions (FAQ)

Q: Can OK202-25-OW be used as a direct replacement for OK202-25-OR?

A: Yes. All electrical specifications, mechanical dimensions, communication interfaces, and operating parameters are identical. The substitute differs only in display text color (white instead of red) and product status (Active instead of Obsolete).

Q: Are the physical mounting dimensions identical?

A: Yes. Both modules have identical outline dimensions (116.00mm x 37.00mm x 25.00mm) and viewing area dimensions (85.00mm x 18.60mm). PCB mounting footprints and connector positions are equivalent.

Q: Do both modules support the same communication protocols?

A: Yes. Both OK202-25-OR and OK202-25-OW support I2C, RS-232, and TTL interfaces. Firmware and software integration remain unchanged.

Q: What is the significance of the product status difference?

A: OK202-25-OR is classified as Obsolete, indicating discontinued manufacturing. OK202-25-OW is Active, meaning it is currently manufactured and supported by Matrix Orbital. For new designs or long-term supply requirements, the Active status of OK202-25-OW provides supply continuity.

Q: Is the power supply voltage range the same?

A: Yes. Both modules operate within the 4.75V to 5.25V supply range. Power distribution and decoupling requirements are identical.

Q: Does the text color difference affect electrical performance?

A: No. Text color is determined by the OLED emitter material and does not affect electrical characteristics, interface timing, or communication protocols. The difference is purely visual.

Q: Are there packaging differences between the two parts?

A: OK202-25-OR packaging is listed as "-" (not specified). OK202-25-OW is supplied in Bulk packaging. Confirm packaging requirements with your procurement specification.