OPB817 Equivalent & Substitute Parts

Part Overview

The OPB817 is an optical sensor through-beam phototransistor module manufactured by TT Electronics/Optek Technology. This chassis-mount, pre-wired module operates with a 0.200" (5.08mm) sensing distance and provides unamplified phototransistor output. The OPB817 is classified as obsolete, necessitating identification of active equivalent parts for continued system support and procurement.

Key Parameters

Parameter	Value
Sensing Distance	0.200" (5.08mm)
Sensing Method	Through-Beam
Output Configuration	Phototransistor
Current - DC Forward (If) (Max)	50 mA
Current - Collector (Ic) (Max)	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V
Operating Temperature	-40°C ~ 80°C
Mounting Type	Chassis Mount
Package / Case	Module, Pre-Wired
Type	Unamplified
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the OPB817 are identified based on matching electrical and mechanical parameters. The critical parameters determining substitution eligibility are:

Sensing distance: 0.200" (5.08mm)
Sensing method: Through-beam
Output configuration: Phototransistor
Current ratings: If (Max) 50 mA, Ic (Max) 30 mA
Voltage rating: Collector-emitter breakdown 30 V
Mounting type: Chassis mount
Package configuration: Module, pre-wired
Type: Unamplified

Two substitute parts meet these criteria: OPB817Z (direct manufacturer equivalent with active product status) and OPB816Z (parametric equivalent with extended operating temperature range).

Parameter Comparison

Parameter	OPB817 (Main)	OPB817Z (Direct Substitute)	OPB816Z (Parametric Equivalent)
Manufacturer	TT Electronics/Optek Technology	TT Electronics/Optek Technology	TT Electronics/Optek Technology
Product Status	Obsolete	Active	Active
Sensing Distance	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Sensing Method	Through-Beam	Through-Beam	Through-Beam
Output Configuration	Phototransistor	Phototransistor	Phototransistor
Current - DC Forward (If) (Max)	50 mA	50 mA	50 mA
Current - Collector (Ic) (Max)	30 mA	30 mA	30 mA
Voltage - Collector Emitter Breakdown (Max)	30 V	30 V	30 V
Operating Temperature	-40°C ~ 80°C	-40°C ~ 80°C	-40°C ~ 85°C
Mounting Type	Chassis Mount	Chassis Mount	Chassis Mount
Package / Case	Module, Pre-Wired	Module, Pre-Wired	Module, Pre-Wired
Type	Unamplified	Unamplified	Unamplified
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

OPB817Z is the primary substitute for the obsolete OPB817. Both parts share identical electrical and thermal specifications, with OPB817Z maintaining active product status from the original manufacturer. OPB817Z is available in bulk packaging and provides direct functional equivalence.

OPB816Z serves as a parametric equivalent with an extended operating temperature range of -40°C to 85°C, compared to the OPB817's -40°C to 80°C. All other electrical and mechanical parameters remain identical. OPB816Z is also active and available in bulk packaging.

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original OPB817 specification.

Frequently Asked Questions (FAQ)

Q: Can OPB817Z be used as a direct replacement for OPB817?

A: Yes. OPB817Z matches all electrical parameters, sensing characteristics, and mechanical specifications of the OPB817. The primary difference is product status: OPB817Z is active while OPB817 is obsolete.

Q: What is the difference between OPB817Z and OPB816Z?

A: OPB817Z and OPB816Z are parametrically equivalent across all electrical and mechanical parameters. The distinction is operating temperature range: OPB817Z operates -40°C to 80°C, while OPB816Z extends to 85°C maximum. Selection depends on application thermal requirements.

Q: Are packaging differences between OPB817 and its substitutes significant?

A: The OPB817 packaging is not specified in available data. OPB817Z and OPB816Z are supplied in bulk packaging. Both maintain the module, pre-wired configuration and chassis mount type required for through-beam optical sensing applications.

Q: Do the substitute parts maintain compliance certifications?

A: Yes. Both OPB817Z and OPB816Z are ROHS3 compliant and REACH unaffected, matching the original OPB817 compliance profile.

Q: Which substitute should be selected for new designs?

A: OPB817Z is the direct equivalent. OPB816Z should be selected if the application requires operation above 80°C, up to 85°C maximum.

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