OP231W Infrared Emitter - Equivalent & Substitute Parts

Part Overview

The OP231W is an infrared (IR) emitter operating at 890nm wavelength, designed for through-hole mounting in TO-46-2 metal can packaging. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The OP231W delivers 100mA forward current with a 2V typical forward voltage and 50° viewing angle, suitable for IR transmission applications across industrial and consumer electronics.

Substiute Parts

OP231W

TT Electronics / Optek TechnologyIn Stock: 1016OP231W Datasheet

Current PartRFQ

OP233W

TT Electronics/Optek TechnologyIn Stock: 1894OP233W Datasheet

MFR RecommendedRFQ

OP233W

TT Electronics/Optek TechnologyIn Stock: 1894OP233W Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OP231W is determined by strict equivalence across the following critical parameters:

• Wavelength: 890nm (exact match required)
• Current Rating: 100mA maximum forward current
• Voltage: 2V typical forward voltage
• Package: TO-46-2 Metal Can
• Mounting: Through Hole configuration
• Viewing Angle: 50°
• Temperature Range: -65°C ~ 125°C

The OP233W qualifies as a direct substitute based on identical electrical specifications and mechanical packaging. The primary distinction is product status: OP233W is active and available in production quantities, whereas OP231W is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OP233W is the direct equivalent for OP231W replacement. Both components share identical electrical and mechanical specifications, with OP233W offering the advantage of active product status and current manufacturing availability. Selection of OP233W eliminates obsolescence risk and ensures supply chain continuity for new production and field replacements.

Both parts maintain ROHS3 compliance and identical environmental ratings, supporting equivalent performance in applications requiring -65°C to 125°C operating temperature ranges. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either component.

Frequently Asked Questions (FAQ)

Q: Can OP233W be used as a direct replacement for OP231W in existing designs?

A: Yes. OP233W is electrically and mechanically identical to OP231W across all specified parameters: 890nm wavelength, 100mA forward current, 2V forward voltage, 50° viewing angle, and TO-46-2 metal can packaging. No circuit modifications are required.

Q: What is the primary reason to transition from OP231W to OP233W?

A: OP231W is classified as obsolete, while OP233W is an active product with current manufacturing and inventory availability. Transitioning to OP233W ensures long-term supply security and eliminates the risk of component unavailability.

Q: Are there any compliance or environmental differences between these parts?

A: No. Both OP231W and OP233W are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity ratings (MSL 1 - Unlimited). Environmental performance across the -65°C to 125°C operating range is equivalent.

Q: Does the TO-46-2 metal can package remain the same for both parts?

A: Yes. Both components use identical TO-46-2 metal can packaging with through-hole mounting configuration, ensuring mechanical compatibility in existing PCB layouts and assembly processes.

Q: Are there inventory considerations when selecting between these parts?

A: OP233W is available in active production with higher inventory levels (1846 pcs), while OP231W is obsolete with limited remaining stock (944 pcs). For new designs and ongoing production, OP233W is the recommended selection.