OPB490L11 Equivalent & Substitute Parts

Part Overview

The OPB490L11 is a through-beam optical sensor from the TT Electronics/Optek Technology Photologic® series, designed for 0.125" (3.18mm) sensing distance applications. This component features wire leads for chassis mount installation and operates across a 4.5V to 16V supply range with 50ns response time. The OPB490L11 is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring this sensing functionality.

Key Parameters

Parameter	Value
Manufacturer Part Number	OPB490L11
Manufacturer	TT Electronics/Optek Technology
Category	Optical Sensors
Series	Photologic®
Sensing Distance	0.125" (3.18mm)
Sensing Method	Through-Beam
Output Configuration	Pull-Up Resistor, Buffer
Voltage - Supply	4.5V ~ 16V
Current - Supply	7.5 mA
Response Time	50ns
Operating Temperature	-40°C ~ 85°C
Mounting Type	Chassis Mount
Package / Case	Module, Wire Leads
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the OPB490L11 is determined by strict equivalence across the following critical parameters:

Sensing distance: 0.125" (3.18mm)
Sensing method: Through-beam
Output configuration: Pull-up resistor, buffer
Supply voltage range: 4.5V ~ 16V
Supply current: 7.5 mA
Response time: 50ns
Operating temperature range: -40°C ~ 85°C
Moisture sensitivity level: 1 (Unlimited)

Substitute parts are grouped into two categories based on mounting configuration:

Category 1: Chassis Mount, Wire Leads (Direct Form Factor Match) OPB490P11Z, OPB490T11Z, OPB480L11Z, OPB480T11Z

Category 2: Through Hole PCB Mount (Functional Equivalent, Different Mounting) OPB460T11

All substitute parts maintain identical electrical specifications and are manufactured by TT Electronics/Optek Technology within the Photologic® series.

Parameter Comparison

Part Number	Sensing Distance	Sensing Method	Output Configuration	Voltage Supply	Current Supply	Response Time	Operating Temperature	Mounting Type	Package / Case	Product Status	RoHS Status
OPB490L11	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	Obsolete	RoHS non-compliant
OPB490P11Z	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	Active	ROHS3 Compliant
OPB490T11Z	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	Active	ROHS3 Compliant
OPB480L11Z	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	Active	ROHS3 Compliant
OPB480T11Z	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Chassis Mount	Module, Wire Leads	Active	ROHS3 Compliant
OPB460T11	0.125" (3.18mm)	Through-Beam	Pull-Up Resistor, Buffer	4.5V ~ 16V	7.5 mA	50ns	-40°C ~ 85°C	Through Hole	PCB Mount	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Form Factor): OPB490P11Z and OPB490T11Z are active production parts with ROHS3 compliance, providing direct electrical and mechanical compatibility with the OPB490L11. Both maintain the chassis mount, wire lead configuration and are available in high inventory quantities (3665 and 4186 units respectively).

OPB480L11Z and OPB480T11Z are functionally equivalent alternatives within the OPB480 base product line, also featuring chassis mount wire leads and ROHS3 compliance, with inventory availability of 1028 and 1100 units respectively.

For PCB Mount Applications: OPB460T11 provides functional equivalence for applications requiring through-hole PCB mounting instead of chassis mounting. This part maintains all electrical specifications and is ROHS3 compliant with 698 units in inventory.

Compliance Consideration: All substitute parts are ROHS3 compliant, whereas the OPB490L11 is RoHS non-compliant. Selection of substitute parts aligns designs with current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can OPB490P11Z or OPB490T11Z be used as direct replacements for OPB490L11? A: Yes. Both parts maintain identical electrical specifications (4.5V ~ 16V supply, 7.5 mA current, 50ns response time, -40°C ~ 85°C operating range) and identical mechanical configuration (chassis mount, module with wire leads, 0.125" sensing distance). The primary differences are product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between OPB490 and OPB480 series parts? A: Both OPB490 and OPB480 series maintain identical electrical and sensing specifications. The distinction lies in the base product line designation. OPB490P11Z and OPB490T11Z are OPB490 series variants, while OPB480L11Z and OPB480T11Z are OPB480 series variants. All four parts are functionally interchangeable for the OPB490L11 application.

Q: When should OPB460T11 be selected instead of OPB490 or OPB480 variants? A: OPB460T11 should be selected when the application requires through-hole PCB mounting rather than chassis mounting with wire leads. Electrical performance is identical; the mounting configuration differs.

Q: Are all substitute parts RoHS compliant? A: Yes. All substitute parts listed (OPB490P11Z, OPB490T11Z, OPB480L11Z, OPB480T11Z, OPB460T11) are ROHS3 compliant, whereas the OPB490L11 is RoHS non-compliant.

Q: What inventory levels are available for substitute parts? A: OPB490T11Z has the highest availability at 4186 units, followed by OPB490P11Z at 3665 units. OPB480T11Z provides 1100 units, OPB480L11Z provides 1028 units, and OPB460T11 provides 698 units.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message