OK204-25-OR-E OLED Character Display Module - Equivalent & Substitute Parts

Part Overview

The OK204-25-OR-E is a 20x4 character OLED display module manufactured by Matrix Orbital, featuring an 80-character capacity with 5x8 dot matrix character format. This module supports multiple communication interfaces (I2C, RS-232, TTL) and operates across an extended temperature range of -40°C to 80°C. The product is currently classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

OK204-25-OR-E

Matrix OrbitalIn Stock: 1232OK204-25-OR-E Datasheet

Current PartRFQ

OK204-25-OW-E

Matrix OrbitalIn Stock: 1131OK204-25-OW-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OK204-25-OR-E is determined by strict equivalence across the following critical parameters:

• Display capacity and format (80 characters, 20x4 configuration)
• Character matrix resolution (5x8 dots)
• Display technology (OLED)
• Physical dimensions (98.00mm x 60.00mm x 26.10mm)
• Electrical specifications (4.75V ~ 5.25V supply voltage)
• Communication interfaces (I2C, RS-232, TTL support)
• Operating temperature range (-40°C ~ 80°C)

The OK204-25-OW-E qualifies as a direct substitute based on identical compliance across all critical parameters. The primary distinction between these parts is the text color specification (red versus white) and product status (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

The OK204-25-OW-E is the active equivalent for the obsolete OK204-25-OR-E. Selection between these parts should be based on the following criteria:

For new designs and ongoing production requiring compliance with current environmental standards, the OK204-25-OW-E is the appropriate choice due to its active product status and RoHS compliance certification.

For legacy system maintenance where the red text color is functionally required, the OK204-25-OR-E remains available in inventory (1134 units) despite its obsolete classification. The OK204-25-OW-E provides identical electrical and mechanical compatibility with the exception of text color output (white instead of red).

Both parts share identical supply voltage specifications, interface protocols, operating temperature ranges, and physical form factors, ensuring direct compatibility at the system integration level.

Frequently Asked Questions (FAQ)

Q: Can the OK204-25-OW-E directly replace the OK204-25-OR-E in existing applications?

A: Yes, the OK204-25-OW-E is electrically and mechanically compatible with the OK204-25-OR-E. Both modules share identical display format (20x4), character matrix (5x8 dots), supply voltage (4.75V ~ 5.25V), communication interfaces (I2C, RS-232, TTL), and physical dimensions (98.00mm x 60.00mm x 26.10mm). The primary difference is text color: the OK204-25-OW-E displays white text instead of red. If red text output is a functional requirement, the OK204-25-OR-E must be retained.

Q: What is the significance of the product status difference between these parts?

A: The OK204-25-OR-E is classified as obsolete, indicating it is no longer in active production. The OK204-25-OW-E maintains active product status, ensuring continued availability, technical support, and compliance with current manufacturing standards. For new designs, the active part is the recommended selection.

Q: Are there packaging differences between these parts?

A: The OK204-25-OR-E is specified with packaging listed as "-" (not specified). The OK204-25-OW-E is supplied in bulk packaging. Both parts maintain identical physical dimensions and form factor.

Q: Does the OK204-25-OW-E meet RoHS compliance requirements?

A: Yes, the OK204-25-OW-E is RoHS compliant. RoHS compliance status is not specified for the OK204-25-OR-E. For applications requiring RoHS certification, the OK204-25-OW-E is the appropriate selection.

Q: Are the communication interfaces identical between both parts?

A: Yes, both the OK204-25-OR-E and OK204-25-OW-E support identical communication protocols: I2C, RS-232, and TTL. No interface modifications are required when substituting between these parts.