T18SN6D Equivalent & Substitute Parts

Part Overview

The T18SN6D is a diffuse optical sensor manufactured by Banner Engineering Corporation, designed for 500mm (19.685") sensing distance applications with NPN output configuration. This sensor operates across a 10V to 30V supply range and features dark-ON/light-ON switching capability with infrared (880nm) light source detection. The product is currently obsolete, necessitating identification of functionally compatible alternatives for ongoing system support and new installations.

Substiute Parts

T18SN6D

Banner Engineering CorporationIn Stock: 793T18SN6D Datasheet

Current PartRFQ

T18-2VNDL-2M

Banner Engineering CorporationIn Stock: 838T18-2VNDL-2M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The T18-2VNDL-2M qualifies as a substitute for the T18SN6D based on the following critical parameters:

Compatible Parameters:

• Voltage supply range: Both operate at 10V ~ 30V
• Output configuration: Both feature NPN - Dark-ON/Light-ON switching
• Connection method: Both use cable connection
• Cable length: Both provide 2m (78.74") cable
• Operating temperature range: Both rated -40°C ~ 70°C
• Ingress protection: Both meet IEC IP67 and IEC IP69K standards
• RoHS compliance: Both are ROHS3 compliant
• Sensing method: Both employ diffuse optical sensing

Differing Parameters:

• Sensing distance: T18-2VNDL-2M extends to 750mm versus T18SN6D at 500mm
• Light source: T18-2VNDL-2M uses red LED versus T18SN6D infrared (880nm)
• Response time: T18-2VNDL-2M provides 1.5ms versus T18SN6D at 3ms
• Product status: T18-2VNDL-2M is active production versus T18SN6D obsolete
• Series designation: T18-2 versus T18

Parameter Comparison

Engineering Selection Recommendations

The T18-2VNDL-2M is an active production substitute for the obsolete T18SN6D. Both components maintain identical voltage supply specifications (10V ~ 30V), NPN output configuration, cable connection methodology, and operating temperature range (-40°C ~ 70°C). Both achieve ROHS3 compliance and meet critical ingress protection standards including IEC IP67 and IEC IP69K.

The T18-2VNDL-2M provides enhanced performance characteristics: extended sensing distance (750mm versus 500mm), faster response time (1.5ms versus 3ms), and improved ingress protection rating (IEC IP68 addition). The light source differs (red LED versus infrared 880nm), which may affect performance in specific optical environments but does not preclude substitution where diffuse sensing methodology is required.

Selection of the T18-2VNDL-2M is supported by active product status, ensuring ongoing availability, technical support, and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the T18-2VNDL-2M directly replace the T18SN6D in existing installations?

A: Yes, provided the application tolerates the extended sensing distance (750mm versus 500mm) and red LED light source (versus infrared 880nm). Both sensors maintain identical voltage supply ranges, NPN output configuration, cable connection type, and operating temperature specifications.

Q: What is the primary reason for substitution?

A: The T18SN6D is obsolete. The T18-2VNDL-2M is an active production component from the same manufacturer, ensuring continued availability and support.

Q: Are there compliance differences between these parts?

A: Both components are ROHS3 compliant. The T18-2VNDL-2M provides additional ingress protection (IEC IP68) beyond the T18SN6D specification.

Q: How do the response times compare?

A: The T18-2VNDL-2M responds in 1.5ms versus the T18SN6D at 3ms. This represents a 50% improvement in switching speed.

Q: Does the light source change affect compatibility?

A: The T18-2VNDL-2M uses red LED instead of infrared (880nm). This may alter detection performance in applications with specific optical characteristics or ambient light conditions. Verification in the target application environment is necessary to confirm suitability.

Q: Are the cable lengths identical?

A: Yes, both components provide 2m (78.74") cable length.