HOA1872-012 Equivalent & Substitute Parts

Part Overview

The HOA1872-012 is an optical sensor manufactured by Honeywell Sensing and Productivity Solutions, designed as a through-beam phototransistor with PCB mount configuration. This component operates at a sensing distance of 0.100" (2.54mm) and is classified as an unamplified optical sensor. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and component procurement.

Substiute Parts

HOA1872-012

Honeywell Sensing and Productivity SolutionsIn Stock: 803HOA1872-012 Datasheet

Current PartRFQ

OPB804

onsemiIn Stock: 1064OPB804 Datasheet

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OPB847

TT Electronics/Optek TechnologyIn Stock: 2013OPB847 Datasheet

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OPB848

TT Electronics / Optek TechnologyIn Stock: 1351OPB848 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HOA1872-012 are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria are:

Critical Matching Parameters:

• Sensing Distance: 0.100" (2.54mm)
• Sensing Method: Through-Beam
• Output Configuration: Phototransistor
• Mounting Type: Through Hole
• Package / Case: PCB Mount
• Type: Unamplified
• Voltage - Collector Emitter Breakdown (Max): 30 V
• Current - DC Forward (If) (Max): 50 mA
• Operating Temperature: -40°C ~ 85°C

The substitute parts OPB847 and OPB848 meet all critical electrical and mechanical parameters. Both are manufactured by TT Electronics/Optek Technology and maintain active product status with enhanced RoHS3 compliance. The OPB804 substitute, while meeting core optical sensor specifications, differs in package configuration (Slotted Module versus PCB Mount) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes: OPB847 and OPB848

The OPB847 and OPB848 optical sensors are direct functional equivalents to the HOA1872-012. Both parts maintain identical electrical specifications including 50 mA maximum DC forward current, 30 V collector-emitter breakdown voltage, and -40°C to 85°C operating temperature range. Both are configured as through-beam phototransistors with PCB mount packaging and through-hole mounting. The response time of 12µs for both OPB847 and OPB848 is superior to the original 15µs specification. Both substitute parts carry active product status and ROHS3 compliance certification, providing long-term component availability and regulatory alignment.

Secondary Substitute: OPB804

The OPB804 is functionally compatible as an optical sensor phototransistor but differs in package configuration (Slotted Module versus PCB Mount). This part is also obsolete and carries RoHS non-compliant status. Selection of OPB804 requires mechanical redesign to accommodate the slotted module package and may present regulatory compliance challenges.

Frequently Asked Questions (FAQ)

Q: Can OPB847 or OPB848 be used as direct replacements for HOA1872-012 without circuit modification?

A: Yes. Both OPB847 and OPB848 maintain identical electrical specifications and PCB mount through-hole packaging. No circuit modification is required for electrical or mechanical compatibility.

Q: What is the primary advantage of OPB847 and OPB848 over the original HOA1872-012?

A: Both substitute parts offer active product status with long-term availability, ROHS3 compliance certification, and improved response time (12µs versus 15µs).

Q: Why is OPB804 listed as a substitute if it uses a different package?

A: OPB804 meets the core optical sensor functional requirements (through-beam phototransistor operation) but requires mechanical redesign due to slotted module packaging. It is included for reference in applications where package reconfiguration is feasible.

Q: Are there differences in RoHS compliance between the substitute parts?

A: OPB847 and OPB848 carry ROHS3 compliance. OPB804 is RoHS non-compliant. For applications requiring RoHS compliance, OPB847 or OPB848 are the appropriate selections.

Q: What is the inventory status for substitute parts?

A: OPB847 has 1984 pieces in stock, OPB848 has 1280 pieces in stock, and OPB804 has 996 pieces in stock. All substitute parts are available as new original components.

Q: Do the substitute parts maintain the same operating temperature range?

A: OPB847 and OPB848 maintain the identical -40°C to 85°C operating temperature range as the HOA1872-012. OPB804 operating temperature specifications are not provided.