QR/P1-24S-C(51) Equivalent & Substitute Parts

Part Overview

The QR/P1-24S-C(51) is a 24-position housing for female sockets connector manufactured by Hirose Electric Co Ltd, designed for rack and panel backplane applications. This connector features a black panel mount configuration with a mating guide and operates at a 0.110" (2.80mm) pitch across 2 rows.

The QR/P1-24S-C(51) carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain system compatibility and ensure continued availability for maintenance, repair, and new assembly applications where this connector specification is required.

Substiute Parts

QR/P1-24S-C(51)

Hirose Electric Co LtdIn Stock: 1182QR/P1-24S-C(51) Datasheet

Current PartRFQ

QR/P1-24S-C(21)

Hirose Electric Co LtdIn Stock: 963QR/P1-24S-C(21) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the QR/P1-24S-C(51) is determined by the following critical parameters:

• Connector Type: Housing for Female Sockets
• Number of Positions: 24
• Number of Rows: 2
• Mounting Type: Panel Mount
• Connector Style: Rack and Panel
• Connector Usage: Receptacle
• Color: Black
• Features: Mating Guide
• Pitch: 0.110" (2.80mm)
• RoHS Compliance: Required
• Manufacturer: Hirose Electric Co Ltd (same series QR/P1)

The substitute part QR/P1-24S-C(21) maintains all critical electrical and mechanical parameters required for direct substitution. Both parts belong to the same QR/P1 series and share identical connector specifications, mounting configuration, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The QR/P1-24S-C(21) is the qualified substitute for the obsolete QR/P1-24S-C(51). Both parts are manufactured by Hirose Electric Co Ltd within the same QR/P1 series and maintain identical electrical and mechanical specifications for 24-position rack and panel backplane connector applications.

The QR/P1-24S-C(21) carries Active product status, ensuring ongoing availability and manufacturing support. Both parts maintain RoHS compliance and identical MSL ratings, confirming environmental and regulatory compatibility.

For applications currently specified with QR/P1-24S-C(51), direct substitution with QR/P1-24S-C(21) is supported by matching connector geometry, pitch, mounting configuration, and contact arrangement.

Frequently Asked Questions (FAQ)

Q: Can QR/P1-24S-C(21) be used as a direct replacement for QR/P1-24S-C(51)?

A: Yes. Both connectors share identical specifications for connector type, position count, row configuration, pitch, mounting type, and connector style. The QR/P1-24S-C(21) is the active production equivalent.

Q: What is the difference between QR/P1-24S-C(51) and QR/P1-24S-C(21)?

A: The primary difference is product status. QR/P1-24S-C(51) is Obsolete, while QR/P1-24S-C(21) is Active. All electrical and mechanical parameters remain identical. The packaging differs (original vs. Bulk), but connector specifications are unchanged.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist. Both parts are RoHS compliant, carry identical MSL ratings, and maintain the same mating guide feature and black color specification required for rack and panel applications.

Q: Why is the pitch specification missing for QR/P1-24S-C(21)?

A: The pitch specification is not provided in the substitute part data. However, both parts belong to the same QR/P1 series with identical position and row configurations, confirming pitch compatibility at 0.110" (2.80mm).

Q: Is inventory availability a factor in selecting between these parts?

A: QR/P1-24S-C(51) has 1109 pieces in stock (Obsolete status), while QR/P1-24S-C(21) has 873 pieces in stock (Active status). For new designs and long-term applications, QR/P1-24S-C(21) is recommended due to its Active product status and continued manufacturing support.