Phoenix Contact 1678923 Male Insert 10 Position Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1678923 is a male insert 10 position terminal block connector with straight push-in termination, rated for 600V and 10A operation across -40°C to 125°C. This component belongs to the HEAVYCON® QA series and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing system maintenance, design updates, and procurement continuity.

Substiute Parts

1678923

Phoenix ContactIn Stock: 9641678923 Datasheet

Current PartRFQ

1648403

Phoenix ContactIn Stock: 9031648403 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1648403 qualifies as a direct substitute for the 1678923 based on the following critical parameters:

Matching Parameters:

• Manufacturer: Phoenix Contact
• Connector Type: Insert (Male)
• Number of Positions: 10
• Size: B10
• Termination Style: Terminal Block, Straight - Push In
• Voltage Rating: 600V
• Operating Temperature Range: -40°C to 125°C
• Housing Material: Polyamide (PA), Nylon
• Contact Material: Copper Alloy
• Contact Finish: Silver
• Material Flammability Rating: UL94 V-0
• RoHS Status: RoHS Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Difference:

• Current Rating: 1648403 is rated for 13A versus 1678923 at 10A. The substitute part provides higher current capacity, making it suitable for applications requiring the original 10A specification.

The 1648403 belongs to the HEAVYCON® B10 series and maintains active product status, ensuring ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1648403 is the appropriate substitute for the obsolete 1678923 based on functional equivalence and compliance alignment. Both components maintain identical electrical ratings (600V), mechanical configuration (10 position, B10 size, straight push-in termination), and environmental specifications (-40°C to 125°C operation). The 1648403 provides enhanced current capacity (13A versus 10A), which does not compromise compatibility with applications designed for the original 10A specification.

The 1648403 holds active product status, ensuring procurement availability and manufacturer support. Both parts maintain RoHS compliance and UL94 V-0 flammability certification, meeting regulatory and safety requirements. The transition from the HEAVYCON® QA series to the HEAVYCON® B10 series represents a product line evolution while preserving mechanical and electrical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the 1648403 directly replace the 1678923 in existing applications?

A: Yes. Both components share identical connector type, position count, size designation, termination method, voltage rating, and operating temperature range. The 1648403 provides higher current capacity (13A), which is compatible with circuits designed for 10A operation.

Q: What is the significance of the series change from HEAVYCON® QA to HEAVYCON® B10?

A: The series designation reflects product line evolution within Phoenix Contact's heavy duty connector portfolio. The B10 series represents the active continuation of the QA series functionality, with the 1648403 maintaining mechanical and electrical compatibility while offering improved current handling.

Q: Are there packaging differences between these parts?

A: The 1678923 was supplied with unspecified packaging, while the 1648403 is supplied in bulk packaging. Both components are suitable for integration into assemblies and systems.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 1678923 and 1648403 are RoHS compliant and carry UL94 V-0 material flammability certification. Moisture sensitivity level is identical at MSL 1 (Unlimited).

Q: Why should I transition from the 1678923 to the 1648403?

A: The 1678923 is classified as obsolete, which creates long-term procurement risk. The 1648403 is an active product with guaranteed availability, manufacturer support, and technical documentation. Transitioning to the active equivalent ensures supply chain continuity and design longevity.