OK202-25-USB-OR OLED Character Display Module

Part Overview

The OK202-25-USB-OR is a 40-digit OLED character display module manufactured by Matrix Orbital, featuring a 20 x 2 character format with USB interface connectivity. This module is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The red text on black background display provides high contrast visibility in various lighting conditions.

Substiute Parts

OK202-25-USB-OR

Matrix OrbitalIn Stock: 873OK202-25-USB-OR Datasheet

Current PartRFQ

OK202-25-USB-OW

Matrix OrbitalIn Stock: 1083OK202-25-USB-OW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Display Configuration: 40-digit capacity, 20 x 2 character format
• Display Technology: OLED type with matching character and dot dimensions
• Physical Dimensions: Identical outline (116.00mm x 37.00mm x 23.20mm) and viewing area (85.00mm x 18.60mm)
• Electrical Interface: USB connectivity with 4.75V ~ 5.25V supply voltage range
• Operating Environment: Temperature range -20°C ~ 70°C
• Mechanical Compatibility: Character size 5.55mm H x 3.20mm W and dot size 0.60mm W x 0.65mm H

The OK202-25-USB-OW qualifies as a direct substitute based on complete alignment with these parameters. The primary difference is text color (white instead of red) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The OK202-25-USB-OW is the qualified substitute for the obsolete OK202-25-USB-OR. Selection of the substitute is supported by the following factors:

Product Status: The OK202-25-USB-OW maintains active product status with current manufacturing support, whereas the OK202-25-USB-OR is obsolete and subject to supply discontinuation.

Regulatory Compliance: The OK202-25-USB-OW is RoHS Compliant, meeting current environmental and material restriction standards. The original part does not specify RoHS compliance status.

Functional Equivalence: All critical electrical, mechanical, and operational parameters are identical between the two parts, ensuring direct compatibility in existing designs and applications.

Inventory Availability: The OK202-25-USB-OW is available in higher quantity (1049 Pcs) compared to the original part (840 Pcs), providing improved supply security.

Frequently Asked Questions (FAQ)

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

A: Yes. The OK202-25-USB-OW is a direct substitute. All electrical specifications, mechanical dimensions, display format, and interface characteristics are identical. The only difference is text color (white versus red) and product status (active versus obsolete).

Q: What is the significance of the text color difference between red and white?

A: Text color affects visual contrast and readability under different lighting conditions. Red text on black background provides one contrast profile, while white text on black background provides another. Selection should be based on the specific application's lighting environment and visibility requirements.

Q: Are there any packaging differences between these parts?

A: The OK202-25-USB-OR is specified with "-" packaging notation, while the OK202-25-USB-OW is supplied in Bulk packaging. Both parts maintain identical physical dimensions and mechanical form factor.

Q: Why is RoHS compliance status different between the two parts?

A: The OK202-25-USB-OW explicitly states RoHS Compliance, reflecting current manufacturing standards. The original OK202-25-USB-OR does not specify RoHS status, which is typical for obsolete products predating current compliance documentation requirements.

Q: Will the USB interface and voltage specifications remain the same?

A: Yes. Both parts feature USB interface connectivity and operate within the identical 4.75V ~ 5.25V supply voltage range. No interface or power supply modifications are required for substitution.

Q: What is the operating temperature range for both parts?

A: Both the OK202-25-USB-OR and OK202-25-USB-OW operate across the temperature range of -20°C to 70°C, ensuring compatibility across equivalent environmental conditions.