TE Connectivity 1-66506-0 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-66506-0 is a pin contact for the AMPLIMITE HDP-20 connector series, designed for 20-24 AWG wire gauges with gold-plated crimp termination. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing procurement and assembly operations. The part is constructed from stamped brass with gold flash finish and is fully ROHS3 compliant with MSL 1 rating.

Substiute Parts

1-66506-0

TE Connectivity AMP ConnectorsIn Stock: 12791-66506-0 Datasheet

Current PartRFQ

1658539-1

TE Connectivity AMP ConnectorsIn Stock: 903811658539-1 Datasheet

DirectRFQ

1658539-2

TE Connectivity AMP ConnectorsIn Stock: 384351658539-2 Datasheet

DirectRFQ

66506-4

TE Connectivity AMP ConnectorsIn Stock: 5188066506-4 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-66506-0 is determined by strict equivalence across the following parameters: connector series (AMPLIMITE HDP-20), contact type (pin), termination method (crimp), wire gauge range (20-24 AWG), contact material (brass), contact finish (gold), construction method (stamped), and regulatory compliance (ROHS3). Parts meeting all these criteria are classified as direct substitutes regardless of packaging configuration or product status transition. The substitute parts 1658539-1, 1658539-2, and 66506-4 satisfy all substitution criteria and are available in active product status with higher inventory levels than the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (1658539-1, 1658539-2, and 66506-4) are functionally equivalent to the 1-66506-0 and are suitable for direct replacement in AMPLIMITE HDP-20 connector applications. The primary distinction among substitutes is product status: all three are active components with significantly higher inventory availability compared to the obsolete main part. Selection between substitutes should be based on packaging requirements and internal supply chain protocols. Parts 1658539-1 and 1658539-2 share the same base product number (1658539) and differ only in contact finish thickness specification. Part 66506-4 maintains the original base product number (66506) while offering active status and improved availability. All substitutes maintain full ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility with the original specification.

Frequently Asked Questions (FAQ)

Q: Can 1658539-1, 1658539-2, and 66506-4 be used interchangeably with 1-66506-0?

A: Yes. All three parts meet the complete electrical and mechanical specification requirements for AMPLIMITE HDP-20 pin contacts with 20-24 AWG crimp termination. Functional compatibility is confirmed across all critical parameters including contact material, finish type, wire gauge range, and termination method.

Q: What is the difference between 1658539-1 and 1658539-2?

A: Both parts are identical except for contact finish thickness. Part 1658539-1 specifies 30.0µin (0.76µm) gold plating, while 1658539-2 specifies flash gold finish. The 1-66506-0 main part also uses flash finish, making 1658539-2 the closest specification match.

Q: Why is packaging different between the main part and substitutes?

A: The main part 1-66506-0 is supplied in bulk packaging, while all active substitutes are supplied in cut tape (CT) packaging. This reflects current manufacturing and distribution practices for active products. Bulk and cut tape packaging contain identical components and do not affect electrical or mechanical performance.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts carry ROHS3 compliance certification, matching the regulatory status of the original 1-66506-0 component.

Q: Which substitute has the highest inventory availability?

A: Part 1658539-1 has the highest inventory level at 90,300 pieces, followed by 66506-4 at 51,810 pieces, and 1658539-2 at 38,366 pieces.

Q: Can I mix different substitute parts in the same assembly?

A: Yes. All substitute parts are electrically and mechanically equivalent and can be used together in the same connector assembly without compatibility issues.