OP565B Equivalent & Substitute Parts

Part Overview

The OP565B is a 930nm side view radial phototransistor manufactured by TT Electronics/Optek Technology. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The OP565B operates as a photodetector in the near-infrared spectrum and is designed for through-hole mounting applications requiring side view optical orientation.

Substiute Parts

OP565B

TT Electronics/Optek TechnologyIn Stock: 866OP565B Datasheet

Current PartRFQ

OP560A

TT Electronics/Optek TechnologyIn Stock: 1762OP560A Datasheet

MFR RecommendedRFQ

QSE133

onsemiIn Stock: 20490QSE133 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the OP565B is determined by the following critical parameters:

• Mounting Type: Through Hole
• Orientation: Side View
• Package / Case: Radial
• Operating Temperature Range: -40°C ~ 100°C
• Power Dissipation: 100 mW maximum
• Dark Current: 100 nA maximum
• Collector-Emitter Breakdown Voltage: minimum 15 V

The substitute parts OP560A and QSE133 maintain compatibility with these core mechanical and electrical constraints. Wavelength variations (930nm, 935nm, 880nm) fall within the near-infrared detection spectrum and are acceptable for optical sensor applications where spectral sensitivity differences are within system tolerance. All substitute parts maintain identical mounting configuration, thermal operating range, and power handling capability.

Parameter Comparison

Engineering Selection Recommendations

OP560A is the primary substitute for OP565B. Both components are manufactured by TT Electronics/Optek Technology, share identical electrical ratings for collector current and dark current, and maintain the same mechanical form factor. OP560A is currently in active production status with higher inventory availability (1665 pcs) compared to OP565B (811 pcs). The wavelength difference of 5nm (935nm vs 930nm) is negligible for most optical detection applications. Both parts maintain ROHS3 compliance and REACH unaffected status.

QSE133 manufactured by onsemi is an alternative substitute with active product status and significantly higher inventory (20400 pcs). This part offers superior voltage rating (30 V vs 15 V) and maintains all critical mechanical parameters. The wavelength shift to 880nm and viewing angle reduction to 50° represent measurable differences that require application-level verification. QSE133 is suitable for designs where higher voltage headroom is beneficial and spectral sensitivity at 880nm is acceptable.

Frequently Asked Questions (FAQ)

Q: Can OP560A directly replace OP565B without circuit modification?

A: OP560A is mechanically and electrically compatible with OP565B. Both share identical collector current ratings (9.8 mA max), dark current specifications (100 nA max), voltage breakdown (15 V), and thermal operating range (-40°C to 100°C). The 5nm wavelength difference (935nm vs 930nm) does not require circuit changes for standard optical detection applications.

Q: What are the key differences between OP560A and QSE133?

A: OP560A and QSE133 differ in wavelength (935nm vs 880nm), viewing angle (56° vs 50°), and collector-emitter breakdown voltage (15 V vs 30 V). Both maintain identical dark current (100 nA), power dissipation (100 mW), and through-hole radial mounting. QSE133 provides higher voltage margin but narrower optical acceptance angle.

Q: Is the viewing angle difference between OP565B (56°) and QSE133 (50°) significant?

A: The 6° viewing angle reduction in QSE133 represents a 10.7% decrease in optical acceptance cone. This difference is application-dependent. Systems with precise optical alignment or narrow field-of-view requirements may require validation. Systems with relaxed optical geometry typically accommodate this variation.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. OP565B, OP560A, and QSE133 are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement.

Q: Which substitute part should be selected for new designs?

A: OP560A is recommended for direct replacement in existing designs due to manufacturer continuity and minimal parameter variation. For new designs, either OP560A or QSE133 are acceptable based on voltage requirements and spectral sensitivity needs. QSE133 offers higher voltage rating and superior inventory availability.