Phoenix Contact 1780477 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1780477 is a 2-position terminal block plug with female sockets, 0.098" (2.50mm) pitch, designed for 180° free-hanging in-line applications. This component features IDC (insulation displacement connector) termination and is rated for 2A at 160V per IEC standards. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system maintenance and new designs requiring equivalent functionality.

Substiute Parts

1780477

Phoenix ContactIn Stock: 7901780477 Datasheet

Current PartRFQ

1778832

Phoenix ContactIn Stock: 74681778832 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1780477 is determined by the following critical parameters:

Mechanical Compatibility:

• Number of positions: 2
• Pitch spacing: 0.098" (2.50mm)
• Plug wire entry orientation: 180°
• Mounting configuration: Free Hanging (In-Line)
• Connector type: Plug with female sockets

Electrical Compatibility:

• Wire gauge support: minimum 26 AWG / 0.14mm²
• Current rating: minimum 2A
• Voltage rating: minimum 160V

Material & Compliance:

• Contact mating finish: Tin
• Color: Black
• RoHS compliance required

The substitute part 1778832 maintains mechanical compatibility across all critical dimensions and orientation parameters. However, it introduces enhanced electrical ratings and an alternative termination method (Screwless - Spring Cage, Tension Clamp versus IDC), which expands application capability while preserving the core form factor and connector interface.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Mechanical & Electrical Compatibility):

The Phoenix Contact 1778832 serves as a direct substitute for the 1780477 in applications where the original part is no longer available. Both components share identical mechanical interfaces (2-position, 2.50mm pitch, 180° orientation, free-hanging configuration) and maintain compatibility with existing mating connectors and PCB layouts.

Electrical Upgrade Path:

The 1778832 provides enhanced electrical performance with 6A current capacity and 320V voltage rating compared to the 1780477's 2A/160V specification. This upgrade is suitable for applications operating within the original 2A/160V envelope, as the substitute maintains backward compatibility while offering increased design margin.

Termination Method Transition:

The 1780477 uses IDC termination, while the 1778832 employs Screwless - Spring Cage, Tension Clamp termination. Both methods achieve equivalent electrical and mechanical connections. The spring cage approach in the 1778832 eliminates the need for specialized IDC tooling and supports a broader wire gauge range (20-26 AWG versus 26 AWG only).

Compliance & Availability:

The 1778832 holds Active product status with ROHS3 compliance and REACH Unaffected designation, ensuring long-term availability and regulatory alignment. The 1780477, classified as Obsolete, should be transitioned to the 1778832 for new designs and ongoing procurement.

Frequently Asked Questions (FAQ)

Q: Can the 1778832 directly replace the 1780477 in existing assemblies?

A: Yes. Both components maintain identical mechanical form factors, pitch spacing (2.50mm), orientation (180°), and mounting configuration (free-hanging in-line). Existing mating connectors and PCB layouts are compatible without modification.

Q: What is the difference between IDC and Spring Cage termination?

A: IDC (insulation displacement connector) termination pierces wire insulation during assembly, requiring specialized tooling. Spring Cage termination uses a tension clamp mechanism that secures stripped wire without piercing insulation. Both methods achieve equivalent electrical performance and mechanical retention.

Q: Does the 1778832 support the same wire gauges as the 1780477?

A: The 1780477 is specified for 26 AWG / 0.14mm² only. The 1778832 supports a broader range: 20-26 AWG / 0.14-0.5mm². Designs using 26 AWG wire are fully compatible with the substitute.

Q: Are there any compliance differences between the two parts?

A: The 1780477 is RoHS Compliant. The 1778832 is ROHS3 Compliant and REACH Unaffected, representing current regulatory standards. Both parts are tin-plated with identical contact mating finishes.

Q: What is the current and voltage rating difference?

A: The 1780477 is rated 2A at 160V (IEC). The 1778832 is rated 6A at 320V (IEC) and 5A at 150V (UL). Applications operating at the original 2A/160V specification operate well within the 1778832's capability envelope.

Q: Is the 1778832 available in the same packaging as the 1780477?

A: The 1780477 packaging is listed as unspecified. The 1778832 is supplied in Bulk packaging. Both are available as new original stock from Phoenix Contact.