OSTHM049080 Equivalent & Substitute Parts

Part Overview

The OSTHM049080 is a 4-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical PCB mounting with 7.5mm pitch spacing. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The terminal block accommodates wire gauges from 12 to 28 AWG with a rated current capacity of 8A at 250V, utilizing screwless push-in spring termination technology.

Substiute Parts

OSTHM049080

On Shore Technology Inc.In Stock: 1180OSTHM049080 Datasheet

Current PartRFQ

HM0490800000G

Amphenol AnytekIn Stock: 926HM0490800000G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHM049080 is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Current rating (8A), voltage rating (250V), and wire gauge compatibility (12-28 AWG) must be identical or exceed the original specification
• Physical Configuration: Position count (4), pitch spacing (7.50mm), and mating orientation (vertical with board) must match exactly
• Termination Technology: Wire termination method must be screwless push-in spring type
• Mounting Interface: Through-hole mounting type and PCB compatibility must be maintained
• Material Composition: Housing material (thermoplastic), contact material (brass-based), and clamp material (steel/stainless) must be equivalent
• Compliance Standards: RoHS3 compliance and REACH unaffected status must be maintained

The substitute part HM0490800000G manufactured by Amphenol Anytek meets all substitution criteria while offering active product status and improved operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The HM0490800000G from Amphenol Anytek is a direct functional equivalent to the OSTHM049080. Both components maintain identical electrical ratings, physical dimensions, and termination characteristics. The substitute part offers the following advantages:

• Active Product Status: HM0490800000G is actively manufactured and supported, eliminating obsolescence risk associated with the OSTHM049080
• Enhanced Operating Range: Extended temperature capability (-40°C to 115°C versus -30°C to 105°C) provides broader application flexibility
• Improved Contact Plating: Tin-plated brass contacts on the substitute part offer enhanced corrosion resistance compared to unplated brass
• Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment

Selection of HM0490800000G is appropriate for new designs and replacement applications where the OSTHM049080 is no longer available.

Frequently Asked Questions (FAQ)

Q: Can HM0490800000G be used as a direct replacement for OSTHM049080 in existing designs?

A: Yes. Both components share identical electrical ratings (8A, 250V), physical configuration (4 positions, 7.50mm pitch), mounting type (through-hole), and termination technology (screwless push-in spring). PCB layouts and assembly processes require no modification.

Q: What is the difference in operating temperature range between these parts?

A: The OSTHM049080 operates from -30°C to 105°C, while the HM0490800000G operates from -40°C to 115°C. The substitute part provides a 10°C lower minimum and 10°C higher maximum operating temperature, expanding application scope.

Q: Are there packaging differences between OSTHM049080 and HM0490800000G?

A: The OSTHM049080 is supplied in standard packaging, while HM0490800000G is supplied in bulk packaging. Both formats are suitable for production assembly; packaging selection depends on order quantity and inventory management requirements.

Q: Does the tin plating on HM0490800000G contacts affect compatibility?

A: No. Tin plating on brass contacts is a standard enhancement that improves corrosion resistance and contact reliability. It does not affect electrical performance or mechanical compatibility with the original design.

Q: Are both components RoHS3 compliant?

A: Yes. Both OSTHM049080 and HM0490800000G are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What wire gauges are supported by HM0490800000G?

A: HM0490800000G accommodates wire gauges from 12 to 28 AWG, identical to the OSTHM049080, ensuring compatibility with existing wiring specifications.