SQR322111-4 Rectangular Connector

Part Overview

The SQR322111-4 is a 4-position rectangular plug connector manufactured by Amphenol PCD, part of the Solaris series. This component features female socket contacts rated for 22 AWG discrete wire with IP67 environmental protection and latch lock fastening. The part is currently obsolete, requiring identification of suitable substitute components to maintain circuit functionality and system compatibility in applications where the original connector is no longer available.

Substiute Parts

SQR322111-4

Amphenol PCDIn Stock: 808SQR322111-4 Datasheet

Current PartRFQ

SQR422151

Amphenol PCDIn Stock: 960SQR422151 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute component identification for the SQR322111-4 is based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

• Contact type: Female socket
• Number of positions: 4
• Wire gauge: 22 AWG
• Environmental rating: IP67

Mechanical Parameters:

• Connector type: Plug
• Mounting type: Free hanging (in-line)
• Fastening type: Latch lock
• Number of rows: 1

Compliance Parameters:

• RoHS compliance
• Discrete wire termination capability

The SQR422151 is identified as a substitute part because it maintains equivalent values across all critical parameters, while offering active product status and improved compliance documentation.

Parameter Comparison

Engineering Selection Recommendations

The SQR422151 serves as a direct functional substitute for the obsolete SQR322111-4. Both components are manufactured by Amphenol PCD within the same Solaris series and share identical electrical and mechanical specifications across all critical parameters. The substitute part offers the advantage of active product status with published availability, eliminating obsolescence constraints.

Both components maintain RoHS compliance. The SQR422151 includes defined moisture sensitivity level documentation (MSL 1 - Unlimited), providing additional specification clarity for supply chain and storage requirements. The HTSUS classification of the substitute part (8536.69.8000) reflects its electrical connector category designation.

Selection of the SQR422151 is supported by equivalence across all functional parameters: 4-position configuration, 22 AWG wire gauge, female socket contact type, IP67 environmental protection, and latch lock fastening.

Frequently Asked Questions (FAQ)

Q: Can the SQR422151 directly replace the SQR322111-4 in existing applications?

A: Yes. Both connectors share identical specifications for number of positions (4), contact type (female socket), wire gauge (22 AWG), mounting type (free hanging in-line), fastening mechanism (latch lock), and environmental rating (IP67). Mechanical and electrical compatibility is maintained.

Q: Why is the original SQR322111-4 marked obsolete?

A: Obsolescence indicates the manufacturer has discontinued production and support for this part number. The SQR422151 provides equivalent functionality with active product status, ensuring ongoing availability and technical support.

Q: What is the significance of the different base product numbers (SQR32 vs SQR42)?

A: Base product numbers indicate manufacturing series designations within Amphenol's product hierarchy. The functional parameters that determine circuit compatibility (contact count, gauge, contact type, and fastening) remain equivalent between the SQR32 and SQR42 series variants.

Q: Are there differences in wire termination between these parts?

A: Both components are configured for discrete wire termination with 22 AWG wire gauge. No differences exist in termination capability or wire sizing requirements.

Q: What does IP67 protection mean for this connector?

A: IP67 rating indicates the connector provides complete dust ingress protection and can withstand temporary submersion in water up to 1 meter depth. This environmental rating is maintained in both the original and substitute part.

Q: Should moisture sensitivity level (MSL) be considered for component selection?

A: The substitute part SQR422151 is rated MSL 1 (unlimited), indicating no moisture handling restrictions for storage or assembly processes. This represents standard conditions for connectors and does not impose special moisture control requirements beyond standard manufacturing practices.