Phoenix Contact 1948721 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1948721 is a 3-position terminal block plug with female sockets, 0.200" (5.08mm) pitch, designed for 180° free-hanging in-line applications. This component features screw-type rising cage clamp termination and is rated for 12A at 250V (IEC) or 10A at 300V (UL). The part is currently obsolete, making identification of compatible substitutes essential for ongoing system maintenance and component sourcing.

Substiute Parts

1948721

Phoenix ContactIn Stock: 10811948721 Datasheet

Current PartRFQ

1777992

Phoenix ContactIn Stock: 25101777992 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1777992 qualifies as a direct substitute based on the following critical parameters:

• Electrical Compatibility: Both parts maintain the same 3-position configuration with 0.200" (5.08mm) pitch and identical wire gauge acceptance (12-30 AWG / 0.2-2.5mm²)
• Mechanical Compatibility: Identical screw-type rising cage clamp termination, M3 screw size, and free-hanging in-line mounting orientation
• Connector Type: Both are plug-type connectors with female sockets and 180° wire entry
• Material Standards: Both meet UL94 V-0 flammability requirements
• Series Alignment: Both belong to the COMBICON MSTB series

The 1777992 represents an active product status alternative to the obsolete 1948721, with enhanced electrical ratings (15A UL, 630V IEC) that exceed the original specifications, ensuring backward compatibility in existing applications.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1777992 is the appropriate substitute for the obsolete 1948721 based on product lifecycle and compliance status. The 1777992 maintains full mechanical and electrical compatibility while offering enhanced electrical performance specifications. The active product status of the 1777992 ensures continued availability and manufacturing support, eliminating supply chain risk associated with the obsolete 1948721.

Both components meet identical flammability and moisture sensitivity requirements. The 1777992 carries ROHS3 compliance, representing current regulatory alignment. The enhanced current and voltage ratings of the 1777992 provide additional design margin without requiring any modifications to existing connector interfaces or mounting configurations.

Frequently Asked Questions (FAQ)

Q: Can the 1777992 be used as a direct replacement for the 1948721 in existing applications?

A: Yes. The 1777992 maintains identical mechanical dimensions, pitch, termination method, and wire gauge compatibility. The enhanced electrical ratings (15A UL, 630V IEC) exceed the original specifications, ensuring full backward compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are product status (1948721 is obsolete; 1777992 is active), electrical ratings (1777992 provides higher current and voltage capacity), and regulatory compliance (1777992 carries ROHS3 certification). Mechanical form factor and connector interface remain identical.

Q: Are there any packaging considerations when switching from 1948721 to 1777992?

A: The 1948721 was supplied in standard packaging, while the 1777992 is available in bulk packaging. This difference affects order quantities and storage but does not impact component functionality or compatibility.

Q: Do both parts use the same screw torque specifications?

A: The 1948721 does not specify torque values. The 1777992 specifies 0.5-0.6 Nm (4.4-5.3 Lb-In) for M3 screw termination. This specification applies to the active substitute and should be used for all new installations and replacements.

Q: Are there any compliance or certification differences?

A: Both parts meet UL94 V-0 flammability requirements and carry MSL 1 (Unlimited) moisture sensitivity ratings. The 1777992 carries ROHS3 compliance, representing current regulatory standards, while the 1948721 carries RoHS compliance. Both are EAR99 classified.