OSTHM079080 Equivalent & Substitute Parts

Part Overview

The OSTHM079080 is a 7-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 12-28 AWG with a rated current capacity of 8A at 250V, utilizing screwless push-in spring termination technology.

Key Parameters

Parameter	Value
Positions Per Level	7
Pitch	0.295" (7.5mm)
Mating Orientation	Vertical with Board
Current Rating	8 A
Voltage Rating	250 V
Wire Gauge	12-28 AWG
Mounting Type	Through Hole
Wire Termination	Screwless - Leg Spring, Push-In Spring
Operating Temperature Range	-30°C ~ 105°C
Housing Material	Thermoplastic
Contact Material	Brass
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHM079080 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
Physical Configuration: 7 positions per level, 7.5mm pitch spacing, and vertical-with-board mating orientation are non-negotiable
Termination Technology: Screwless push-in spring termination must be maintained
Mounting Method: Through-hole PCB mounting is required
Material Compliance: RoHS3 compliance and thermoplastic housing are mandatory

The substitute part HM0790800000G by Amphenol Anytek meets all these criteria, providing functional and mechanical equivalence while offering active product status and extended operating temperature range.

Parameter Comparison

Parameter	OSTHM079080	HM0790800000G	Match Status
Manufacturer	On Shore Technology Inc.	Amphenol Anytek	Different
Positions Per Level	7	7	Equivalent
Pitch	0.295" (7.5mm)	0.295" (7.5mm)	Equivalent
Mating Orientation	Vertical with Board	Vertical with Board	Equivalent
Current Rating	8 A	8 A	Equivalent
Voltage Rating	250 V	250 V	Equivalent
Wire Gauge	12-28 AWG	12-28 AWG	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Wire Termination	Screwless - Leg Spring, Push-In Spring	Screwless - Leg Spring, Push-In Spring	Equivalent
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C	Substitute Extended
Housing Material	Thermoplastic	Thermoplastic	Equivalent
Contact Material - Plating	Brass	Brass - Tin Plated	Substitute Enhanced
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The HM0790800000G from Amphenol Anytek is a direct functional equivalent to the obsolete OSTHM079080. Both components maintain identical electrical ratings, physical dimensions, and termination characteristics required for PCB-level wire-to-board connections in 7-position configurations.

The substitute part offers the following advantages:

Active Product Status: HM0790800000G is currently in active production, ensuring long-term availability and supply chain continuity
Enhanced Operating Range: Extended temperature specification (-40°C to 115°C versus -30°C to 105°C) provides broader application flexibility
Improved Contact Plating: Tin-plated brass contacts enhance corrosion resistance compared to unplated brass
Regulatory Compliance: Both components maintain ROHS3 compliance and REACH unaffected status

Selection of HM0790800000G eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can HM0790800000G be used as a direct replacement for OSTHM079080 on existing PCBs?

A: Yes. Both components share identical pitch spacing (7.5mm), position count (7), mounting method (through-hole), and electrical ratings (8A, 250V). PCB footprints are compatible without modification.

Q: What is the difference in contact plating between these parts?

A: OSTHM079080 uses unplated brass contacts, while HM0790800000G features tin-plated brass. Tin plating provides enhanced corrosion resistance and is suitable for all applications where the original part was specified.

Q: Does the extended operating temperature range of HM0790800000G affect compatibility?

A: No. The extended range (-40°C to 115°C) is a superset of the original specification (-30°C to 105°C). Applications designed for the original part operate within the substitute's rated range.

Q: Are there packaging differences between these parts?

A: OSTHM079080 packaging is not specified in available data. HM0790800000G is supplied in bulk packaging. Confirm packaging requirements with your procurement department.

Q: What certifications apply to both parts?

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

Q: Is the screwless push-in termination identical between both parts?

A: Yes. Both components utilize identical screwless leg spring and push-in spring termination technology, supporting wire gauges 12-28 AWG without modification to assembly procedures.

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