HOA0880-L55 Equivalent & Substitute Parts

Part Overview

The HOA0880-L55 is an optical sensor through-beam transistor module manufactured by Honeywell Sensing and Productivity Solutions. This unamplified sensor operates with a 0.125" (3.18mm) sensing distance and provides transistor output configuration. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Transistor
Current - DC Forward (If) (Max)	50 mA
Current - Collector (Ic) (Max)	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Response Time	15µs
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Chassis Mount, Wire Lead
Package Type	Module, Pre-Wired
Type	Unamplified
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the HOA0880-L55 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Sensing distance: 0.125" (3.18mm)
Sensing method: Through-Beam
Output type: Transistor or phototransistor configuration
Current ratings: DC Forward (If) 50 mA maximum, Collector (Ic) 30 mA maximum
Voltage rating: Collector Emitter Breakdown 30 V maximum
Operating temperature range: -40°C ~ 85°C
Package configuration: Module, Pre-Wired with Chassis Mount
Amplification type: Unamplified

The OPB880L51Z manufactured by TT Electronics/Optek Technology meets all mandatory matching parameters. While the HOA0880-L55 specifies transistor output and the OPB880L51Z specifies phototransistor output, both configurations operate within identical electrical constraints and are functionally interchangeable in through-beam sensing applications with equivalent sensing distance and response characteristics.

Parameter Comparison

Parameter	HOA0880-L55 (Honeywell)	OPB880L51Z (TT Electronics/Optek)	Match Status
Sensing Distance	0.125" (3.18mm)	0.125" (3.18mm)	Equivalent
Sensing Method	Through-Beam	Through-Beam	Equivalent
Output Configuration	Transistor	Phototransistor	Compatible
Current - DC Forward (If) (Max)	50 mA	50 mA	Equivalent
Current - Collector (Ic) (Max)	30 mA	30 mA	Equivalent
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	Equivalent
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Mounting Type	Chassis Mount, Wire Lead	Chassis Mount	Compatible
Package Type	Module, Pre-Wired	Module, Pre-Wired	Equivalent
Type	Unamplified	Unamplified	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The OPB880L51Z is the designated substitute for the obsolete HOA0880-L55. Selection is based on the following engineering criteria:

Product Status Consideration: The HOA0880-L55 is classified as obsolete, while the OPB880L51Z maintains active product status with confirmed inventory availability (1332 pieces in stock versus 818 pieces for the obsolete part).

Compliance Equivalence: Both parts maintain RoHS compliance. The OPB880L51Z carries ROHS3 Compliant certification, representing current regulatory alignment. Both parts are REACH Unaffected and carry identical ECCN (EAR99) and HTSUS (8541.49.8000) classifications.

Electrical and Mechanical Compatibility: All critical electrical parameters are equivalent across both parts. The sensing distance, through-beam method, current ratings, voltage ratings, and operating temperature range are identical. Both parts are supplied as pre-wired modules with chassis mount configuration, ensuring mechanical compatibility in existing installations.

Output Configuration: While the HOA0880-L55 specifies transistor output and the OPB880L51Z specifies phototransistor output, both configurations operate within identical electrical constraints and deliver equivalent performance in through-beam sensing applications.

Frequently Asked Questions (FAQ)

Q: Can the OPB880L51Z directly replace the HOA0880-L55 in existing applications?

A: Yes. Both parts share identical sensing distance (0.125"), sensing method (through-beam), electrical ratings (50 mA forward current, 30 mA collector current, 30 V breakdown voltage), operating temperature range (-40°C to 85°C), and package configuration (pre-wired module with chassis mount). The parts are functionally interchangeable.

Q: What is the difference between transistor and phototransistor output configurations?

A: Both configurations are output types for optical sensors. The HOA0880-L55 specifies transistor output, while the OPB880L51Z specifies phototransistor output. In this application, both operate within identical electrical constraints and are compatible with the same circuit designs.

Q: Why is the HOA0880-L55 classified as obsolete?

A: Product obsolescence is determined by manufacturer discontinuation. The OPB880L51Z maintains active status and is the recommended alternative for new designs and ongoing system support.

Q: Are there packaging differences between these parts?

A: Both parts are supplied as pre-wired modules with chassis mount configuration. The HOA0880-L55 specifies wire lead mounting, while the OPB880L51Z specifies chassis mount. Both configurations are compatible with standard through-beam sensor installations.

Q: What is the response time for the OPB880L51Z?

A: Response time is not specified in the available technical data for the OPB880L51Z. The HOA0880-L55 specifies 15µs response time. For applications requiring specific response time verification, consult the complete technical datasheets from TT Electronics/Optek Technology.

Q: Are both parts RoHS compliant?

A: Yes. The HOA0880-L55 is RoHS Compliant. The OPB880L51Z is ROHS3 Compliant, representing current regulatory standards. Both parts meet RoHS requirements for hazardous substance restrictions.

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