OPS690 Equivalent & Substitute Parts

Part Overview

The OPS690 is an optical sensor manufactured by TT Electronics/Optek Technology, designed as a through-beam phototransistor with radial packaging for through-hole mounting applications. This component is classified as an unamplified optical sensor with phototransistor output configuration. The OPS690 is currently listed as obsolete, making identification of equivalent substitute parts essential for ongoing system support and component procurement. The OPS691 serves as the direct manufacturer-recommended substitute, offering identical electrical and mechanical specifications while maintaining active product status.

Substiute Parts

OPS690

TT Electronics/Optek TechnologyIn Stock: 1043OPS690 Datasheet

Current PartRFQ

OPS691

TT Electronics/Optek TechnologyIn Stock: 1110OPS691 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPS690 is determined by strict equivalence across the following critical parameters:

• Sensing Method: Through-Beam
• Output Configuration: Phototransistor
• Current - DC Forward (If) (Max): 50 mA
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Operating Temperature Range: -40°C ~ 100°C
• Mounting Type: Through Hole
• Package / Case: Radial
• Type: Unamplified

The OPS691 meets all substitution criteria as a direct equivalent. Both components share identical electrical ratings, thermal operating range, and mechanical form factor. The primary distinction is product status: OPS690 is obsolete while OPS691 maintains active manufacturing status.

Parameter Comparison

Engineering Selection Recommendations

The OPS691 is the manufacturer-recommended substitute for the obsolete OPS690. Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The OPS691 maintains identical electrical specifications and thermal operating range, ensuring functional compatibility in existing circuit designs. Selection of the OPS691 is supported by its active product status, which ensures ongoing availability and manufacturing continuity. No design modifications are required when transitioning from OPS690 to OPS691.

Frequently Asked Questions (FAQ)

Q: Can OPS691 be used as a direct replacement for OPS690? A: Yes. The OPS691 is the manufacturer-recommended substitute with identical electrical ratings (50 mA maximum DC forward current, 30 V maximum collector-emitter breakdown voltage), operating temperature range (-40°C to 100°C), and radial through-hole package configuration.

Q: What is the primary reason for substitution? A: The OPS690 is obsolete. The OPS691 provides equivalent functionality with active manufacturing status, ensuring component availability for new procurement and system support.

Q: Are there packaging differences between OPS690 and OPS691? A: Both components use radial through-hole packaging. The OPS691 is supplied in bulk packaging, while the OPS690 packaging specification was not provided in the original documentation.

Q: Do both parts meet current compliance standards? A: Yes. Both OPS690 and OPS691 are ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Are circuit design changes necessary when substituting OPS691 for OPS690? A: No. Identical electrical specifications and thermal ratings eliminate the need for circuit redesign or board layout modifications.