OPF793 Equivalent & Substitute Parts

Part Overview

The OPF793 is a photodiode optical sensor manufactured by TT Electronics/Optek Technology, designed for 800nm wavelength detection applications. This component features a PIN diode configuration with 2ns response time and 0.55 A/W responsivity at 850nm, suitable for high-speed optical sensing in industrial and telecommunications applications. The OPF793 is classified as obsolete, making identification of active equivalent parts essential for ongoing system support and new design implementations.

Substiute Parts

OPF793

TT Electronics/Optek TechnologyIn Stock: 761OPF793 Datasheet

Current PartRFQ

OPF794

TT Electronics/Optek TechnologyIn Stock: 914OPF794 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OPF793 is determined by strict equivalence across the following critical parameters:

• Wavelength and Spectral Range: 800nm center wavelength with 800nm ~ 1000nm spectral range
• Diode Type: PIN configuration
• Responsivity: 0.55 A/W @ 850nm
• Response Time: 2ns maximum
• Reverse Voltage Rating: 50 V maximum
• Dark Current: 500pA typical
• Operating Temperature Range: -40°C ~ 85°C
• Mounting Type: Through Hole
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The OPF794 meets all specified parameters and maintains identical electrical and mechanical characteristics, qualifying it as a direct substitute. The primary distinction is product status: OPF794 is active and currently available, whereas OPF793 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The OPF794 is the direct equivalent for OPF793 applications. Both components are manufactured by TT Electronics/Optek Technology and share identical electrical specifications, optical characteristics, and regulatory compliance certifications. The OPF794 is the recommended selection for new designs and replacement applications due to its active product status and current availability. Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for industrial and commercial deployments.

Frequently Asked Questions (FAQ)

Q: Can OPF794 directly replace OPF793 in existing designs? A: Yes. The OPF794 is electrically and mechanically identical to OPF793 across all specified parameters. No circuit modifications or design changes are required for substitution.

Q: What is the primary reason for substituting OPF793? A: OPF793 is classified as obsolete. OPF794 is the active equivalent part currently manufactured and available from TT Electronics/Optek Technology.

Q: Are there any compliance differences between OPF793 and OPF794? A: No. Both parts maintain identical RoHS3 compliance and REACH unaffected status.

Q: Do both parts use the same mounting configuration? A: Yes. Both OPF793 and OPF794 use through-hole mounting and are compatible with identical PCB layouts.

Q: What are the critical parameters for photodiode substitution in this application? A: Wavelength (800nm), spectral range (800nm ~ 1000nm), diode type (PIN), responsivity (0.55 A/W @ 850nm), response time (2ns), reverse voltage rating (50 V), and operating temperature range (-40°C ~ 85°C) must remain constant for functional equivalence.