RA-2011 Rectangular Connector Housing - Equivalent & Substitute Parts

Part Overview

The RA-2011 is a 20-position rectangular connector housing manufactured by JST Sales America Inc. This receptacle housing is designed for 0.100" (2.54mm) pitch applications with a 2-row configuration and free-hanging in-line mounting. The part is actively produced and RoHS compliant, making it suitable for applications requiring standard rectangular connector solutions. Substitute parts may be required due to inventory availability, lead time considerations, or specific application requirements that align with alternative manufacturer specifications.

Substiute Parts

RA-2011

JST Sales America Inc.In Stock: 4189RA-2011 Datasheet

Current PartRFQ

102387-4

TE Connectivity AMP ConnectorsIn Stock: 4478102387-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RA-2011 is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Configuration: Must be receptacle with female socket contacts
• Position Count & Pitch: Exactly 20 positions at 0.100" (2.54mm) pitch
• Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
• Mounting & Termination: Free hanging in-line mounting with crimp termination
• Physical Properties: Black color, compatible insulation material
• Environmental Compliance: RoHS compliance and MSL rating of 1

The substitute part 102387-4 (TE Connectivity AMP Connectors) meets all critical substitution criteria across these parameters, enabling direct functional equivalence in applications designed for the RA-2011.

Parameter Comparison

Engineering Selection Recommendations

Both the RA-2011 and 102387-4 are active production parts with current RoHS compliance certifications. The RA-2011 maintains RoHS compliance, while the 102387-4 meets ROHS3 compliance, representing an equivalent or enhanced regulatory status. The 102387-4 provides an extended operating temperature range (-65°C ~ 105°C) compared to the RA-2011 (-55°C ~ 85°C), making it suitable for applications requiring broader thermal performance. Selection between these parts should be based on inventory availability, lead time requirements, and specific application thermal demands within the stated operating ranges.

Frequently Asked Questions (FAQ)

Q: Can the 102387-4 directly replace the RA-2011 in existing designs?

A: Yes. Both parts share identical critical parameters: 20-position receptacle housing, 0.100" (2.54mm) pitch, 2-row configuration, free-hanging in-line mounting, crimp termination, and black color. The mechanical and electrical interfaces are equivalent.

Q: What is the significance of the polarizing key feature on the 102387-4?

A: The 102387-4 includes a polarizing key feature, which is not listed for the RA-2011. This feature prevents incorrect mating orientation. Applications designed for the RA-2011 without polarization requirements remain compatible with the 102387-4.

Q: Are there differences in insulation material between these parts?

A: The RA-2011 specifies Polybutylene Terephthalate (PBT) glass-filled insulation, while the 102387-4 uses Thermoplastic insulation. Both materials meet the functional and environmental requirements for this connector class and MSL rating.

Q: Does the extended temperature range of the 102387-4 affect compatibility?

A: No. The extended operating temperature range of the 102387-4 (-65°C ~ 105°C) encompasses the RA-2011 specification (-55°C ~ 85°C). Applications operating within the RA-2011 temperature range function identically with the 102387-4.

Q: What packaging considerations apply to these parts?

A: The RA-2011 is supplied in standard packaging, while the 102387-4 is supplied in bulk packaging. Both are suitable for production assembly; packaging selection depends on manufacturing workflow and inventory management requirements.