OSTH417705A Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The OSTH417705A is a 17-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.197" (5.00mm) pitch spacing. This component is designed for free-hanging (in-line) applications with screwless push-in spring termination. The product is currently obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and component sourcing.

Substiute Parts

OSTH417705A

On Shore Technology Inc.In Stock: 1146OSTH417705A Datasheet

Current PartRFQ

1974889

Phoenix ContactIn Stock: 11181974889 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 1974889 (Phoenix Contact COMBICON FKCS series) qualifies as a substitute based on the following critical parameters:

• Position Count & Pitch: Both parts feature 17 positions at 0.197" (5.00mm) pitch, ensuring mechanical and electrical compatibility with mating connectors
• Termination Technology: Both employ screwless push-in spring termination, maintaining identical wire connection methodology
• Mounting Configuration: Both are free-hanging (in-line) designs with female socket plugs
• Voltage Rating: The substitute meets or exceeds the UL voltage requirement of 300 V
• Wire Gauge Compatibility: Both accept 12-26 AWG wire, preserving existing wiring specifications
• Contact Finish: Tin plating on both parts ensures compatible mating surfaces
• Flammability Compliance: Both achieve UL94 V-0 rating
• RoHS Compliance: The substitute is RoHS Compliant, meeting modern environmental standards

The primary difference is plug wire entry orientation (90° vs. 180°), which is a mechanical consideration dependent on installation space constraints rather than electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 1974889 (Phoenix Contact) is the designated substitute for the obsolete OSTH417705A. Selection is based on:

• Functional Equivalence: Identical position count, pitch, and termination methodology ensure direct compatibility with existing mating connectors and wiring harnesses
• Active Product Status: The substitute is currently in active production, ensuring long-term availability and supply chain reliability
• Compliance Alignment: Both parts meet UL94 V-0 flammability requirements and relevant voltage/current specifications for the application
• Environmental Standards: The substitute maintains RoHS compliance, satisfying modern regulatory requirements
• Electrical Specifications: Voltage and wire gauge parameters are identical, eliminating the need for circuit redesign or wiring modifications

The primary consideration during implementation is the plug wire entry orientation difference (90° vs. 180°). This affects physical installation geometry but does not impact electrical performance or connector compatibility. Installation space and cable routing requirements should determine whether the 180° entry orientation of the substitute is acceptable for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the 1974889 directly replace the OSTH417705A without modifications?

A: Yes, from an electrical and mechanical standpoint. Both parts share identical position count (17), pitch (5.00mm), termination style (push-in spring), and voltage rating (300 V UL). The primary difference is wire entry angle (90° vs. 180°), which is a physical installation consideration. Verify that the 180° entry orientation accommodates your cable routing and installation space before deployment.

Q: Are the mating connectors compatible between these two parts?

A: Yes. Both the OSTH417705A and 1974889 feature identical 17-position, 5.00mm pitch female socket configurations. Existing mating plugs and connectors designed for the original part will interface correctly with the substitute.

Q: What is the significance of the wire entry angle difference?

A: The OSTH417705A features 90° wire entry, while the 1974889 features 180° entry. This affects the physical orientation of incoming cables relative to the connector body. The choice depends on available installation space, cable routing paths, and enclosure design. Electrically, both configurations are equivalent.

Q: Does the substitute meet the same compliance standards?

A: The 1974889 meets or exceeds the compliance requirements of the original part. Both achieve UL94 V-0 flammability rating and maintain RoHS compliance. The substitute is actively manufactured and certified to current standards.

Q: What wire gauges are supported by the substitute?

A: The 1974889 accepts 12-26 AWG wire, identical to the OSTH417705A. No changes to existing wiring specifications are required.

Q: Is the substitute available in the same packaging?

A: The OSTH417705A was supplied in standard packaging, while the 1974889 is available in bulk packaging. Verify packaging requirements with your procurement process, as this may affect order quantities and handling procedures.