HR25-9R-20PC(71) Equivalent & Substitute Parts

Part Overview

The HR25-9R-20PC(71) is a 20-position circular connector receptacle housing for male pins, manufactured by Hirose Electric Co Ltd. This panel mount connector features a push-pull fastening mechanism, zinc alloy shell with nickel finish, and shielded construction. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and component procurement.

Substiute Parts

HR25-9R-20PC(71)

Hirose Electric Co LtdIn Stock: 1014HR25-9R-20PC(71) Datasheet

Current PartRFQ

HR25A-9R-20PC

Hirose Electric Co LtdIn Stock: 1251HR25A-9R-20PC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HR25-9R-20PC(71) is determined by strict equivalence across the following critical parameters:

• Connector Type & Configuration: Receptacle housing for male pins with 20 positions
• Shell Size: Insert size 9 maintains mechanical and electrical compatibility
• Mounting Interface: Panel mount with bulkhead rear side nut fastening
• Fastening Mechanism: Push-pull connector system
• Contact System: Crimp contact type
• Material & Finish: Zinc alloy shell with nickel finish
• Electrical & Environmental Ratings: UL94 V-0 flammability, operating temperature -25°C ~ 85°C, MSL 1

The HR25A-9R-20PC represents a direct functional substitute within the Hirose HR25 connector family, maintaining all critical mechanical and electrical parameters while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The HR25A-9R-20PC is the primary substitute for the obsolete HR25-9R-20PC(71). Both connectors maintain identical mechanical interfaces, electrical ratings, and environmental specifications. The HR25A series offers the advantage of active product status, ensuring continued availability and supply chain reliability.

The HR25A-9R-20PC carries RoHS compliance certification, providing regulatory advantage for new designs and systems subject to RoHS requirements. Both connectors are rated for identical operating temperature ranges and moisture sensitivity levels.

A key difference exists in shielding configuration: the original HR25-9R-20PC(71) features shielded construction, while the HR25A-9R-20PC is unshielded. This distinction must be evaluated based on application electromagnetic compatibility requirements. If shielding is functionally required, alternative shielded variants within the HR25A series should be consulted.

Frequently Asked Questions (FAQ)

Q: Can the HR25A-9R-20PC directly replace the HR25-9R-20PC(71) in existing assemblies?

A: The HR25A-9R-20PC maintains identical mechanical mounting interfaces, pin count, shell size, and fastening mechanisms. Direct physical and electrical substitution is supported for applications where the unshielded configuration is acceptable. If the original shielded design was specified for electromagnetic compatibility, shielding requirements must be re-evaluated.

Q: What is the significance of the HR25 versus HR25A series designation?

A: The HR25A represents an evolved product line within the Hirose connector family, maintaining backward compatibility with HR25 specifications while offering improved availability and active manufacturing status. Both series share identical mechanical and electrical parameters for the 20-position, size 9 configuration.

Q: Are there packaging differences between these connectors?

A: The HR25-9R-20PC(71) packaging is not specified in available documentation. The HR25A-9R-20PC is supplied in bulk packaging. Packaging configuration should be confirmed with the supplier based on procurement requirements.

Q: What compliance certifications apply to both connectors?

A: Both connectors meet UL94 V-0 material flammability requirements and carry MSL 1 (Unlimited) moisture sensitivity ratings. The HR25A-9R-20PC additionally carries RoHS compliance certification. Both are classified under ECCN EAR99 and HTSUS 8538.90.8180.

Q: Does the shielding difference affect connector compatibility?

A: Shielding affects electromagnetic interference performance but does not impact mechanical or basic electrical compatibility. Applications requiring shielded performance must specify shielded connector variants. The unshielded HR25A-9R-20PC is suitable for applications without electromagnetic shielding requirements.