OSTT7180151 Equivalent & Substitute Parts

Part Overview

The OSTT7180151 is an 18-position wire-to-board terminal block manufactured by On Shore Technology Inc., featuring a 45° (135°) angle orientation with 0.250" (6.35mm) pitch and through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The part operates at 30 A and 300 V with screw-based wire termination using a rising cage clamp mechanism.

Substiute Parts

OSTT7180151

On Shore Technology Inc.In Stock: 1093OSTT7180151 Datasheet

Current PartRFQ

KZ1870510000G

Amphenol AnytekIn Stock: 807KZ1870510000G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the OSTT7180151 is constrained by the following critical parameters: 18-position configuration, 45° board angle orientation, through-hole mounting, and screw-based termination. The substitute part KZ1870510000G maintains functional equivalence in position count, orientation, mounting method, and termination type. However, the substitute operates at a reduced current rating (15 A versus 30 A) and uses a different pitch specification (0.197" / 5.00mm versus 0.250" / 6.35mm). These differences require circuit-level evaluation to confirm suitability for the intended application.

Parameter Comparison

Engineering Selection Recommendations

The KZ1870510000G serves as an active substitute for the obsolete OSTT7180151 based on matching position count, board angle orientation, through-hole mounting, and screw termination architecture. Both components maintain ROHS3 compliance and operate within 300 V specifications. The substitute part is currently in active production status with 722 units in stock, providing supply continuity for the obsolete original.

Critical design considerations include the 50% reduction in current capacity (15 A versus 30 A) and the pitch change from 6.35mm to 5.00mm. These parameter differences necessitate verification that the application circuit operates within the reduced current envelope and that PCB layout accommodates the tighter pitch spacing. The substitute's extended operating temperature range (-40°C to 115°C) provides broader environmental coverage compared to the original (-30°C to 105°C).

Frequently Asked Questions (FAQ)

Q: Can KZ1870510000G directly replace OSTT7180151 without PCB modification?

A: No. The pitch difference (6.35mm versus 5.00mm) requires PCB layout changes. The mounting hole spacing and connector footprint are not interchangeable. PCB redesign is necessary.

Q: What is the impact of the current rating reduction from 30 A to 15 A?

A: Applications requiring current levels between 15 A and 30 A per position cannot use the substitute without circuit redesign. Verify that your application operates within the 15 A maximum per-position specification.

Q: Are both parts electrically compatible at 300 V?

A: Yes. Both components are rated for 300 V operation and maintain ROHS3 compliance. Voltage compatibility is confirmed.

Q: Does the wire gauge range difference affect compatibility?

A: The substitute accepts 12-26 AWG while the original accepts 10-24 AWG. The substitute does not accommodate 10 AWG or 11 AWG wire sizes. Verify that your wiring specification falls within 12-26 AWG range.

Q: What is the difference between rising cage clamp and leaf spring termination?

A: Both are screw-based termination methods. The original uses a rising cage clamp; the substitute uses a leaf spring with wire guard. Both provide secure wire retention through screw torque application. The substitute includes an additional wire guard feature.

Q: Is the substitute available in the same packaging as the original?

A: The substitute is supplied in bulk packaging. Original packaging specifications are not provided for comparison.