OPB690 Equivalent & Substitute Parts

Part Overview

The OPB690 is an optical sensor featuring an optical flag transistor with base-emitter resistor module and connector interface. This component is classified as an unamplified optical sensor designed for slot-type optical flag sensing applications. The OPB690 is currently listed as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where this sensing technology remains applicable.

Substiute Parts

OPB690

TT Electronics/Optek TechnologyIn Stock: 760OPB690 Datasheet

Current PartRFQ

OPB690Z

TT Electronics/Optek TechnologyIn Stock: 1576OPB690Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OPB690 is determined by strict equivalence across the following critical parameters:

• Sensing Method: Optical Flag
• Output Configuration: Transistor, Base-Emitter Resistor
• Current - DC Forward (If) (Max): 50 mA
• Current - Collector (Ic) (Max): 30 mA
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Operating Temperature Range: -40°C ~ 100°C
• Mounting Type: Chassis Mount
• Package / Case: Module, Connector
• Type: Unamplified

The OPB690Z qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction is product status: OPB690Z is active and available, whereas OPB690 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OPB690Z is the direct substitute for the obsolete OPB690. Both components share identical electrical and mechanical specifications, ensuring functional equivalence in optical flag sensing applications. The OPB690Z offers the additional advantage of active product status with confirmed inventory availability (1533 pcs), whereas the OPB690 is obsolete with limited remaining stock (705 pcs).

For new designs or system replacements, OPB690Z is the appropriate selection. The OPB690Z achieves ROHS3 compliance, whereas the original OPB690 is RoHS non-compliant. Both components maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can OPB690Z directly replace OPB690 in existing applications?

A: Yes. The OPB690Z provides complete electrical and mechanical equivalence to the OPB690. All critical parameters—sensing method, output configuration, current ratings, voltage ratings, operating temperature range, mounting type, and package configuration—are identical between the two parts.

Q: What is the primary reason to transition from OPB690 to OPB690Z?

A: The OPB690 is obsolete with limited remaining inventory. The OPB690Z is the active production equivalent, ensuring long-term availability and supply chain continuity. Additionally, OPB690Z meets ROHS3 compliance requirements.

Q: Are there packaging differences between OPB690 and OPB690Z?

A: Both components use Module, Connector packaging with Chassis Mount configuration. The OPB690Z is supplied in Bulk packaging, whereas the OPB690 packaging specification is not detailed in available documentation. This distinction does not affect functional compatibility.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is based on matching: DC Forward Current (50 mA max), Collector Current (30 mA max), Collector-Emitter Breakdown Voltage (30 V max), and operating temperature range (-40°C to 100°C). The OPB690Z meets all these specifications identically to the OPB690.

Q: Is the OPB690Z suitable for new design implementations?

A: Yes. The OPB690Z is an active product with confirmed inventory and ROHS3 compliance, making it appropriate for both replacement applications and new designs requiring optical flag transistor sensing with base-emitter resistor output configuration.