SH-31R Equivalent & Substitute Parts

Part Overview

The SH-31R is a through-beam optical sensor manufactured by Panasonic Industrial Automation Sales, designed for 1-meter (39.37") sensing distance applications. This sensor features a red LED light source, IP66 ingress protection, and a 3-meter cable connection. The product is currently obsolete, making identification of compatible substitute components essential for system maintenance, repair, and new design implementations where equivalent functionality is required.

Substiute Parts

SH-31R

Panasonic Industrial Automation SalesIn Stock: 883SH-31R Datasheet

Current PartRFQ

EX-L211

Panasonic Industrial Automation SalesIn Stock: 801EX-L211 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SH-31R is based on the following critical parameters that define functional equivalence:

Primary Matching Criteria:

• Sensing method: Through-beam configuration
• Sensing distance: 1-meter (39.37" / 39.370") range
• Light source type: Red wavelength (LED or laser diode)
• Connection method: Cable-based interface
• Ingress protection: IP66 or higher rating
• Operating temperature range: Compatibility with -25°C ~ 60°C or broader range

The EX-L211 satisfies these core substitution criteria as an active product with equivalent through-beam sensing distance, red light source (laser diode at 650nm), cable connection, and enhanced IP67 protection rating.

Parameter Comparison

Engineering Selection Recommendations

The EX-L211 is the designated substitute for the obsolete SH-31R based on functional equivalence in through-beam sensing architecture and 1-meter detection range. Both components are manufactured by Panasonic Industrial Automation Sales and maintain RoHS compliance standards.

Key Considerations for Implementation:

The EX-L211 provides enhanced specifications relative to the SH-31R: IP67 ingress protection exceeds the IP66 rating of the original component, and the red laser diode light source (650nm) offers improved beam definition compared to the red LED source. The EX-L211 is an active product with current manufacturing support and availability.

Cable length differs between components: the SH-31R provides 3-meter cable length while the EX-L211 provides 2-meter cable length. Operating temperature range of the EX-L211 (-10°C ~ 55°C) is narrower than the SH-31R (-25°C ~ 60°C); applications requiring the full original temperature range require evaluation of environmental conditions.

Frequently Asked Questions (FAQ)

Q: Why is the SH-31R being replaced? A: The SH-31R is classified as an obsolete product. The EX-L211 is the active equivalent from the same manufacturer, providing equivalent through-beam sensing functionality at 1-meter distance with enhanced specifications.

Q: Are the SH-31R and EX-L211 mechanically compatible? A: Both components use cable-based connections and adjustable mounting. Physical mounting compatibility requires verification against specific installation fixtures and enclosure designs.

Q: What is the difference between the red LED and red laser diode light sources? A: The SH-31R uses a red LED light source, while the EX-L211 uses a red laser diode at 650nm wavelength. The laser diode provides a more focused beam profile, which may improve sensing performance in certain environmental conditions.

Q: Does the shorter cable length of the EX-L211 affect substitution? A: The EX-L211 provides 2-meter cable length compared to the SH-31R's 3-meter length. Applications requiring the full 3-meter cable length must evaluate cable extension options or alternative routing strategies.

Q: Are both components RoHS compliant? A: Yes. The SH-31R is RoHS Compliant, and the EX-L211 is ROHS3 Compliant, meeting current environmental and hazardous substance restrictions.

Q: What is the operating temperature difference between these sensors? A: The SH-31R operates from -25°C to 60°C, while the EX-L211 operates from -10°C to 55°C. Applications requiring operation below -10°C or above 55°C require alternative component evaluation.