OPB962L55 Equivalent & Substitute Parts

Part Overview

The OPB962L55 is a through-beam optical sensor from TT Electronics/Optek Technology's Photologic® series, designed for 0.125" (3.18mm) PCB mount applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The sensor operates with totem pole inverted output configuration and is suitable for applications requiring precise through-beam optical detection in compact form factors.

Key Parameters

Parameter	Value
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Totem Pole, Inverted
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

Substitution for the OPB962L55 is determined by strict equivalence across the following critical parameters:

Sensing Distance: 0.125" (3.18mm)
Sensing Method: Through-Beam
Output Configuration: Totem Pole, Inverted
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

All substitute parts listed maintain identical electrical and mechanical specifications. The primary distinction between the OPB962L55 and its substitutes lies in product status (obsolete versus active) and packaging configuration (tape and reel versus bulk). The OPB962 and OPB972 base product families are functionally equivalent within this parameter set.

Parameter Comparison

Part Number	Manufacturer	Product Status	Sensing Distance	Sensing Method	Output Configuration	Current - Supply	Voltage - Supply	Response Time	Operating Temperature	RoHS Status	Inventory (Pcs)
OPB962L55	TT Electronics / Optek Technology	Obsolete	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	922
OPB962N51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1415
OPB962N55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2020
OPB962T51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	692
OPB962T55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1060
OPB972L51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2714
OPB972N51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	2905
OPB972P51	TT Electronics / Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1135
OPB972T51	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1034
OPB972T55	TT Electronics/Optek Technology	Active	0.125" (3.18mm)	Through-Beam	Totem Pole, Inverted	15 mA	4.75V ~ 5.25V	70ns	-40°C ~ 70°C	ROHS3 Compliant	1334

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical compatibility with the OPB962L55. Selection among active alternatives should prioritize parts with active product status to ensure long-term availability and supply chain stability.

OPB962 series parts (OPB962N51, OPB962N55, OPB962T51, OPB962T55) provide direct functional equivalence to the original OPB962L55 design. OPB972 series parts (OPB972L51, OPB972N51, OPB972P51, OPB972T51, OPB972T55) offer identical electrical performance and mechanical compatibility within the same parameter envelope.

All substitute parts carry ROHS3 compliance and REACH unaffected status, maintaining regulatory alignment with the original part. Packaging configuration differences (tape and reel versus bulk) do not affect electrical or mechanical performance and should be selected based on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB972 series parts directly replace OPB962L55 in existing designs?

A: Yes. OPB972 series parts maintain identical sensing distance (0.125"), sensing method (through-beam), output configuration (totem pole inverted), supply current (15 mA), supply voltage (4.75V ~ 5.25V), response time (70ns), operating temperature range (-40°C ~ 70°C), and PCB mount package configuration. No circuit modifications are required.

Q: What is the difference between OPB962 and OPB972 base product families?

A: Within the parameter set specified for this application, OPB962 and OPB972 base families are functionally equivalent. Both families provide identical electrical and mechanical specifications for through-beam optical sensing at 0.125" (3.18mm) with totem pole inverted output.

Q: Does packaging configuration (tape and reel versus bulk) affect compatibility?

A: No. Packaging configuration affects procurement and assembly logistics only. Electrical and mechanical performance remains identical across all packaging options. Part selection should be based on assembly process requirements and inventory management practices.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and REACH unaffected status, matching the regulatory profile of the original OPB962L55.

Q: Which substitute part offers the highest inventory availability?

A: OPB972N51 currently maintains the highest inventory level at 2905 pieces, followed by OPB972L51 at 2714 pieces. Both parts are active status with full regulatory compliance.

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