OSTH418705C Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The OSTH418705C is an 18-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

OSTH418705C

On Shore Technology Inc.In Stock: 1161OSTH418705C Datasheet

Current PartRFQ

1017410000

WeidmüllerIn Stock: 11651017410000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 1017410000 (Weidmüller Omnimate BL series) qualifies as a substitute based on the following critical parameters:

• Position Count & Pitch: Both parts feature 18 positions at 0.197" (5.00mm) pitch, ensuring mechanical and electrical compatibility with mating connectors
• Socket Type: Both are plug configurations with female sockets, maintaining interface compatibility
• Termination Method: Both employ screwless push-in spring termination, allowing identical wire insertion procedures
• Mounting Configuration: Both are free-hanging, in-line designs with mating flanges and retention latches
• Voltage Rating: The substitute meets or exceeds the UL voltage requirement of 300 V
• Wire Gauge Compatibility: Both accept 12-26 AWG wire, supporting identical conductor sizes
• Contact Finish & Material: Both use tin-plated contacts with compatible contact materials (phosphor bronze vs. copper alloy)
• Flammability Compliance: Both achieve UL94 V-0 rating
• RoHS Compliance: The substitute is RoHS compliant, meeting modern regulatory requirements

The primary difference is plug wire entry orientation (90° vs. 180°), which affects physical installation geometry but not electrical function or mating compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 1017410000 is a direct functional substitute for the obsolete OSTH418705C. Selection should be based on the following engineering criteria:

Compatibility Factors: The substitute maintains electrical and mechanical compatibility through identical position count, pitch, socket type, and termination method. Both parts interface with the same mating connectors and accept identical wire gauges.

Regulatory Compliance: The 1017410000 is RoHS compliant and currently in active production, ensuring long-term availability and compliance with modern procurement standards. The OSTH418705C, while ROHS3 compliant, is obsolete and subject to supply discontinuation.

Operational Parameters: The substitute operates across a comparable temperature range (-50°C ~ 100°C vs. -30°C ~ 105°C). The OSTH418705C's upper temperature limit of 105°C is marginally higher; applications requiring sustained operation above 100°C should evaluate thermal requirements against the substitute's specification.

Installation Geometry: The wire entry orientation differs (90° vs. 180°). Physical installation space and cable routing must accommodate the 180° entry configuration of the substitute. This is a mechanical consideration only and does not affect electrical performance.

Availability: The 1017410000 has 1124 units in stock versus 1053 units of the obsolete part, providing superior supply security for ongoing production and repair applications.

Frequently Asked Questions (FAQ)

Q: Can the 1017410000 directly replace the OSTH418705C in existing assemblies?

A: Yes, electrically and mechanically. Both parts feature identical 18-position, 5.00mm pitch configurations with female sockets and push-in spring termination. Mating connectors designed for the OSTH418705C will interface with the 1017410000 without modification. Physical installation space must accommodate the 180° wire entry orientation of the substitute.

Q: What is the significance of the different wire entry angles (90° vs. 180°)?

A: Wire entry angle affects cable routing and installation geometry only. A 90° entry directs wires perpendicular to the connector body, while 180° entry directs wires in line with the connector body. This is a spatial consideration for PCB layout and enclosure design, not an electrical parameter.

Q: Are both parts compatible with the same mating connectors?

A: Yes. Both the OSTH418705C and 1017410000 are plug configurations with 18 female sockets at 0.197" (5.00mm) pitch. They mate with identical receptacle connectors designed for this pitch and position count.

Q: Does the operating temperature difference affect substitution suitability?

A: The OSTH418705C specifies -30°C ~ 105°C, while the 1017410000 specifies -50°C ~ 100°C. The substitute has a lower upper temperature limit by 5°C. Applications operating continuously above 100°C should evaluate whether this difference impacts thermal performance requirements.

Q: What wire gauges are supported by both parts?

A: Both parts accept 12-26 AWG wire. No gauge conversion or adapter is required when substituting.

Q: Is the RoHS compliance difference significant?

A: The OSTH418705C is ROHS3 compliant (obsolete designation), while the 1017410000 is RoHS compliant (current designation). Both meet RoHS requirements. The current designation on the substitute reflects its active production status and alignment with modern regulatory frameworks.

Q: What is the contact material difference between the two parts?

A: The OSTH418705C uses phosphor bronze contacts, while the 1017410000 uses copper alloy contacts. Both materials are tin-plated and provide equivalent electrical conductivity and contact reliability for this application class.