T18SN6DQ Equivalent & Substitute Parts

Part Overview

The T18SN6DQ is a diffuse optical sensor manufactured by Banner Engineering Corporation, designed for 500mm (19.685") sensing distance applications with NPN output configuration. This model operates across a 10V to 30V supply range and features dark-ON/light-ON selectable output modes with infrared (880nm) light source technology.

The T18SN6DQ is classified as obsolete. Locating equivalent or substitute components is necessary to maintain system functionality, ensure continued availability for new installations, and support legacy equipment maintenance where original stock is depleted.

Substiute Parts

T18SN6DQ

Banner Engineering CorporationIn Stock: 990T18SN6DQ Datasheet

Current PartRFQ

T18-2VNDL-Q8

Banner Engineering CorporationIn Stock: 1087T18-2VNDL-Q8 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the T18SN6DQ is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Sensing method: Diffuse
• Output configuration: NPN - Dark-ON/Light-ON
• Voltage supply range: 10V ~ 30V
• Connection method: Connector
• Ingress protection rating: NEMA 6P, IEC IP67, IEC IP69K
• Operating temperature range: -40°C ~ 70°C
• RoHS compliance: ROHS3 Compliant

Allowable Variation Parameters:

• Sensing distance: Extended range acceptable (750mm vs. 500mm)
• Response time: Faster response acceptable (1.5ms vs. 3ms)
• Light source wavelength: Different infrared or visible spectrum acceptable
• Product status: Active status preferred over obsolete

The T18-2VNDL-Q8 meets all mandatory compatibility criteria while offering enhanced performance characteristics in sensing distance and response time.

Parameter Comparison

Engineering Selection Recommendations

The T18-2VNDL-Q8 is a qualified substitute for the T18SN6DQ based on the following engineering criteria:

Compliance & Regulatory Status: Both components maintain ROHS3 compliance and carry identical ECCN (EAR99) and HTSUS classifications, ensuring regulatory equivalence for procurement and export purposes.

Product Lifecycle Status: The T18-2VNDL-Q8 carries active product status, providing assured long-term availability and continued manufacturer support, whereas the T18SN6DQ is obsolete. This transition addresses supply chain continuity and reduces risk of future component unavailability.

Functional Compatibility: Both sensors share identical voltage supply ranges (10V ~ 30V), connector-based connection methods, and equivalent ingress protection ratings (NEMA 6P, IEC IP67, IEC IP69K). Operating temperature ranges are identical (-40°C ~ 70°C), ensuring thermal compatibility in existing installations.

Performance Enhancement: The T18-2VNDL-Q8 provides improved response time (1.5ms versus 3ms) and extended sensing distance capability (750mm versus 500mm), delivering superior performance characteristics without compromising backward compatibility in applications where the original 500mm range is sufficient.

Frequently Asked Questions (FAQ)

Q: Can the T18-2VNDL-Q8 directly replace the T18SN6DQ in existing installations?

A: Yes. Both components share identical voltage supply ranges, connector-based interfaces, and equivalent ingress protection ratings. The T18-2VNDL-Q8 maintains NPN output configuration with dark-ON/light-ON selectable modes, ensuring functional compatibility with existing control circuits and wiring harnesses.

Q: What are the key differences between these two sensors?

A: The primary differences are sensing distance (750mm versus 500mm), response time (1.5ms versus 3ms), light source wavelength (red 624nm versus infrared 880nm), and product status (active versus obsolete). The T18-2VNDL-Q8 offers enhanced performance while maintaining all critical compatibility parameters.

Q: Does the extended sensing distance of the T18-2VNDL-Q8 affect compatibility?

A: No. Extended sensing distance represents a performance enhancement rather than a compatibility constraint. Applications requiring the original 500mm range will function correctly with the T18-2VNDL-Q8, which simply provides additional capability for longer-distance sensing if needed.

Q: Are there packaging differences between these components?

A: The T18SN6DQ packaging information is not specified in the technical data. The T18-2VNDL-Q8 is supplied in box packaging. Verify packaging requirements against your procurement and assembly specifications.

Q: What is the significance of the light source wavelength difference?

A: The T18SN6DQ uses infrared (880nm) while the T18-2VNDL-Q8 uses red (624nm) light source technology. Both wavelengths are suitable for diffuse sensing applications. Red light sources may provide improved visibility during setup and adjustment procedures compared to infrared sources.

Q: Are both components RoHS compliant?

A: Yes. Both the T18SN6DQ and T18-2VNDL-Q8 are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.