OSTHM045080 Equivalent & Substitute Parts

Part Overview

The OSTHM045080 is a 4-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical PCB mounting with 0.200" (5.08mm) pitch spacing. This component features screwless push-in spring termination and is rated for 8 A at 250 V, accommodating wire gauges from 12-28 AWG.

The OSTHM045080 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this terminal block configuration.

Substiute Parts

OSTHM045080

On Shore Technology Inc.In Stock: 1156OSTHM045080 Datasheet

Current PartRFQ

HM0450800000G

Amphenol AnytekIn Stock: 738HM0450800000G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHM045080 is determined by strict equivalence across the following critical parameters:

• Electrical Performance: Current rating (8 A), voltage rating (250 V), and wire gauge compatibility (12-28 AWG) must be maintained or exceeded
• Physical Configuration: 4 positions per level, 0.200" (5.08mm) pitch, vertical with board mating orientation, and through-hole mounting type must be identical
• Termination Method: Screwless push-in spring termination is required
• Environmental Compliance: RoHS3 compliance and MSL 1 rating must be present
• Material Specifications: Thermoplastic housing with brass contact plating ensures functional equivalence

The substitute part HM0450800000G manufactured by Amphenol Anytek meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The HM0450800000G from Amphenol Anytek is a qualified substitute for the obsolete OSTHM045080. Both components maintain identical electrical ratings, physical dimensions, and termination characteristics. The substitute part offers an extended operating temperature range (-40°C ~ 115°C versus -30°C ~ 105°C) and tin-plated brass contacts, which provide enhanced corrosion resistance compared to the original part's unplated brass contacts.

Both parts carry ROHS3 compliance and MSL 1 ratings, ensuring regulatory and environmental compatibility. The HM0450800000G maintains active product status, providing assured long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can HM0450800000G be used as a direct replacement for OSTHM045080 in existing designs?

A: Yes. Both components share identical electrical ratings (8 A, 250 V), physical configuration (4 positions, 5.08mm pitch), mounting type (through-hole), and termination method (screwless push-in spring). PCB footprints and connector interfaces are compatible.

Q: What is the significance of the extended temperature range in HM0450800000G?

A: The HM0450800000G operates from -40°C to 115°C, compared to the OSTHM045080 range of -30°C to 105°C. This extended range provides additional thermal margin for applications operating at temperature extremes, though both parts meet standard industrial specifications.

Q: Does the tin plating on HM0450800000G 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 existing wire terminations or PCB designs.

Q: Are both parts RoHS3 compliant?

A: Yes. Both OSTHM045080 and HM0450800000G are ROHS3 compliant and carry MSL 1 (unlimited moisture sensitivity) ratings, meeting current regulatory requirements for electronic component manufacturing and assembly.

Q: What wire gauges are supported by the substitute part?

A: The HM0450800000G accommodates wire gauges from 12-28 AWG, identical to the original OSTHM045080, ensuring compatibility with existing wiring specifications and assembly processes.