Phoenix Contact 1770445 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1770445 is a 7-position wire-to-board terminal block with 0.394" (10.00mm) pitch, designed for horizontal mounting through PCB holes. This component features screwless spring cage termination with lever actuation and supports wire gauges from 6-18 AWG at 51 A and 300 V ratings. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

1770445

Phoenix ContactIn Stock: 9661770445 Datasheet

Current PartRFQ

1119816

Phoenix ContactIn Stock: 9031119816 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1770445 is determined by the following critical parameters:

• Position Count & Pitch: Both main and substitute parts must maintain 7 positions at 0.394" (10.00mm) pitch to ensure PCB layout compatibility
• Mounting Configuration: Horizontal with board through-hole mounting is required for mechanical fit
• Wire Gauge Compatibility: The substitute must accommodate the wire gauge range of the original part
• Termination Type: Screwless spring-based termination systems are functionally equivalent
• Electrical Ratings: Current and voltage ratings must meet or exceed the original specifications
• Housing Material: Polyamide (PA) nylon construction ensures consistent mechanical and thermal properties

The Phoenix Contact 1119816 qualifies as a substitute based on matching position count, pitch, mounting orientation, and termination methodology. Both components are manufactured by Phoenix Contact and share identical PCB footprints and electrical interface requirements.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1119816 is the designated substitute for the obsolete 1770445 based on the following engineering criteria:

Mechanical Compatibility: Both components share identical PCB footprints with 7 positions at 10mm pitch and through-hole mounting, ensuring direct replacement without PCB redesign.

Electrical Performance: The 1119816 supports wire gauges from 4-18 AWG, which encompasses the original 6-18 AWG specification. This expanded range provides additional flexibility for wire selection without compromising the electrical interface.

Termination Methodology: Both parts employ screwless spring-based wire termination with lever actuation. The 1119816 uses leg spring and push-in spring technology, which is functionally equivalent to the original tension clamp design for reliable wire retention and electrical contact.

Compliance Status: The 1119816 is ROHS3 compliant and carries active product status, ensuring long-term availability and supply chain stability. The original 1770445 is RoHS compliant but obsolete, making the 1119816 the preferred choice for new designs and ongoing production.

Operating Environment: The 1119816 specifies an operating temperature range of -40°C to 105°C, providing defined thermal performance parameters for system design validation.

Frequently Asked Questions (FAQ)

Q: Can the 1119816 directly replace the 1770445 on existing PCBs?

A: Yes. Both components maintain identical 7-position configuration at 0.394" (10.00mm) pitch with through-hole mounting. The PCB footprint is compatible without modification.

Q: What is the difference in wire termination between these parts?

A: The 1770445 uses spring cage tension clamp termination, while the 1119816 uses leg spring and push-in spring termination. Both are screwless spring-based systems that provide equivalent wire retention and electrical contact performance.

Q: Does the 1119816 support the same wire gauge range?

A: The 1119816 supports 4-18 AWG, which exceeds the original 1770445 specification of 6-18 AWG. This expanded range maintains full backward compatibility while offering additional wire size options.

Q: Why is the 1770445 listed as obsolete?

A: The 1770445 belongs to the COMBICON PLH series, which has been superseded by the LPT series represented by the 1119816. Phoenix Contact has transitioned production to the newer LPT platform.

Q: Are there any compliance differences between these parts?

A: The 1770445 is RoHS compliant, while the 1119816 is ROHS3 compliant. Both meet current environmental and regulatory requirements. The 1119816's ROHS3 status reflects updated compliance standards.

Q: What is the current rating difference?

A: The 1770445 specifies 51 A current rating. The 1119816 does not provide an explicit current rating in the available documentation. Verify current handling requirements against application specifications before selection.