OPB960P51 Equivalent & Substitute Parts

Part Overview

The OPB960P51 is an optical sensor manufactured by TT Electronics/Optek Technology, part of the Photologic® series. This through-beam optical sensor features a 0.125" (3.18mm) sensing distance and PCB mount configuration. The part is Active in product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct replacement in applications where the original part becomes unavailable or inventory constraints require alternative sourcing.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB960P51
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Totem Pole, Buffer
Mounting Type	Through Hole
Current - Supply	15 mA
Voltage - Supply	4.75V ~ 5.25V
Response Time	70ns
Operating Temperature	-40°C ~ 70°C
Package / Case	PCB Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts for the OPB960P51 are qualified based on strict equivalence across the following critical parameters:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Totem Pole, Buffer
Mounting Type: Through Hole
Current - Supply: 15 mA
Voltage - Supply: 4.75V ~ 5.25V
Response Time: 70ns
Operating Temperature: -40°C ~ 70°C
Package / Case: PCB Mount
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

All identified substitute parts maintain identical electrical performance characteristics and mechanical compatibility with the OPB960P51. Substitutes include variants within the OPB960 base product family and the OPB930 and OPB970 series, all manufactured by TT Electronics/Optek Technology within the Photologic® product line.

Parameter Comparison

Part Number	Sensing Distance	Sensing Method	Output Configuration	Current - Supply	Voltage - Supply	Response Time	Operating Temperature	RoHS Status	Inventory (Pcs)
OPB960P51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1144
OPB930L51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1285
OPB960L51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1073
OPB960N51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	8810
OPB960N55	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1745
OPB960T11	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1065
OPB960T51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	20199
OPB960T55	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1239
OPB970N11	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	3534
OPB970N51	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	3099
OPB970N55	0.125" (3.18mm)	Through-Beam	Totem Pole, Buffer	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1330

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and full compliance with RoHS3 and REACH requirements. Selection among equivalent parts should be based on inventory availability and application-specific lead time requirements. The OPB960T51 variant offers the highest current inventory level at 20,199 units, providing optimal availability for high-volume production requirements. OPB960N51 provides secondary availability at 8,810 units. All parts are manufactured by TT Electronics/Optek Technology and carry identical electrical and mechanical specifications, ensuring direct functional interchangeability within the Photologic® optical sensor product line.

Frequently Asked Questions (FAQ)

Q: Can OPB960P51 be directly replaced with OPB960T51? A: Yes. Both parts share identical electrical parameters (15 mA supply current, 4.75V–5.25V supply voltage, 70ns response time), sensing distance (0.125"), sensing method (through-beam), output configuration (totem pole, buffer), mounting type (through hole), operating temperature range (-40°C to 70°C), and compliance certifications (RoHS3, REACH unaffected). Direct substitution is electrically and mechanically compatible.

Q: What is the difference between OPB960 and OPB970 series substitutes? A: Both OPB960 and OPB970 base product families provide equivalent optical sensor functionality with identical electrical and mechanical parameters for this application. The suffix designations (N51, T51, N55, T11, etc.) indicate packaging or configuration variants within each family, but all listed parts maintain the same core specifications required for substitution.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed carry RoHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the OPB960P51.

Q: Which substitute part has the best inventory availability? A: OPB960T51 maintains the highest inventory level at 20,199 units, followed by OPB960N51 at 8,810 units. Both provide optimal sourcing options for applications requiring immediate availability.

Q: Can substitute parts be used in the same PCB layout without modification? A: Yes. All substitute parts maintain identical through-hole mounting type and PCB mount package configuration, enabling direct PCB layout compatibility without design changes.

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