QRD1313 Equivalent & Substitute Parts

Part Overview

The QRD1313 is a reflective optical sensor manufactured by onsemi, designed for applications requiring 0.050" (1.27mm) sensing distance with radial 4-lead through-hole mounting. This component features photodarlington output technology and operates across the industrial temperature range of -40°C to 85°C. The QRD1313 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

QRD1313

onsemiIn Stock: 2377QRD1313 Datasheet

Current PartRFQ

OPB707A

TT Electronics/Optek TechnologyIn Stock: 1585OPB707A Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the QRD1313 is determined by strict alignment of the following critical parameters:

• Sensing distance: 0.050" (1.27mm) reflective operation
• Output type: Photodarlington configuration
• Voltage rating: Collector-emitter breakdown minimum 15 V
• DC forward current: 50 mA maximum
• Operating temperature: -40°C to 85°C range
• Through-hole mounting capability
• MSL rating: 1 (Unlimited)

The OPB707A meets all substitution criteria. While package configuration differs (PCB Mount versus Radial - 4 Leads), both components maintain identical sensing distance, reflective methodology, photodarlington output, voltage specifications, and operating temperature range. The OPB707A provides additional collector current capacity (125 mA maximum) without compromising compatibility with QRD1313 circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The OPB707A serves as the direct functional equivalent for QRD1313 applications. Selection between these components is determined by product availability and regulatory compliance requirements.

The QRD1313, classified as obsolete, presents supply chain constraints for new procurement. The OPB707A maintains active product status with confirmed inventory availability (1549 pcs), ensuring reliable sourcing for both replacement and new design applications.

Regulatory compliance favors the OPB707A, which carries ROHS3 certification. Both components maintain REACH Unaffected status and identical ECCN classification (EAR99), supporting equivalent export and compliance documentation requirements.

Package configuration differs between the two components: QRD1313 uses radial 4-lead configuration while OPB707A employs PCB mount design. Circuit board layout modifications are required to accommodate this physical difference. Electrical performance remains equivalent across all specified parameters.

Frequently Asked Questions (FAQ)

Q: Can OPB707A directly replace QRD1313 without circuit modification?

A: Electrical substitution is complete. Physical board layout modification is required due to different package configurations (radial versus PCB mount). Mounting hole patterns and lead positioning differ between the two components.

Q: What is the significance of the higher collector current rating on OPB707A?

A: The OPB707A maximum collector current of 125 mA exceeds QRD1313 specifications (not specified). This provides additional design margin and does not affect compatibility with existing QRD1313 circuit designs, which operate within the 50 mA DC forward current specification common to both components.

Q: Are there compliance differences between QRD1313 and OPB707A?

A: Both components maintain REACH Unaffected status and EAR99 ECCN classification. The OPB707A carries ROHS3 compliance certification, while QRD1313 RoHS status is not specified. For applications requiring RoHS compliance documentation, OPB707A is the appropriate selection.

Q: Why is QRD1313 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. OPB707A active status ensures continued availability and manufacturer support for technical documentation and supply chain reliability.

Q: Are sensing characteristics identical between these components?

A: Both components operate at 0.050" (1.27mm) sensing distance using reflective methodology with photodarlington output. Sensing performance characteristics are equivalent within the specified operating temperature range of -40°C to 85°C.