OSTHM084081 Equivalent & Substitute Parts

Part Overview

The OSTHM084081 is an 8-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical mounting with 0.300" (7.62mm) pitch spacing. This component features press-fit termination and accommodates wire gauges from 12-28 AWG with a rated current of 8 A and voltage of 250 V. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Key Parameters

Parameter	Value
Positions Per Level	8
Pitch	0.300" (7.62mm)
Mating Orientation	Vertical with Board
Current Rating	8 A
Voltage Rating	250 V
Wire Gauge	12-28 AWG
Mounting Type	Press Fit
Wire Termination	Screwless - Leg Spring, Push-In Spring
Operating Temperature Range	-30°C ~ 105°C
Housing Material	Thermoplastic
Contact Material - Plating	Brass
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the OSTHM084081 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Positions per level (8), pitch spacing (0.300"/7.62mm), current rating (8 A minimum), voltage rating (250 V minimum), and wire gauge acceptance (12-28 AWG)
Mechanical Compatibility: Mating orientation (vertical with board), wire termination method (screwless push-in spring), and housing material (thermoplastic)
Environmental & Regulatory: Operating temperature range, RoHS3 compliance, and REACH status

The substitute part HM0840810000G meets all critical electrical and mechanical parameters while offering enhanced specifications in voltage rating (300 V) and operating temperature range (-40°C ~ 115°C). Both parts maintain identical pitch, position count, wire gauge compatibility, and termination methodology.

Parameter Comparison

Parameter	OSTHM084081	HM0840810000G	Compatibility
Manufacturer	On Shore Technology Inc.	Amphenol Anytek	Different manufacturers
Positions Per Level	8	8	Equivalent
Pitch	0.300" (7.62mm)	0.300" (7.62mm)	Equivalent
Mating Orientation	Vertical with Board	Vertical with Board	Equivalent
Current Rating	8 A	8 A	Equivalent
Voltage Rating	250 V	300 V	Substitute exceeds requirement
Wire Gauge	12-28 AWG	12-28 AWG	Equivalent
Mounting Type	Press Fit	Through Hole, Press-Fit	Substitute supports additional mounting option
Wire Termination	Screwless - Leg Spring, Push-In Spring	Screwless - Leg Spring, Push-In Spring	Equivalent
Operating Temperature	-30°C ~ 105°C	-40°C ~ 115°C	Substitute exceeds range
Housing Material	Thermoplastic	Thermoplastic	Equivalent
Contact Material - Plating	Brass	Brass - Tin Plated	Substitute includes additional plating
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is currently manufactured

Engineering Selection Recommendations

The HM0840810000G from Amphenol Anytek is a direct functional substitute for the obsolete OSTHM084081. Both components maintain identical electrical ratings for current (8 A) and wire gauge compatibility (12-28 AWG), with equivalent mechanical configuration and pitch spacing. The substitute part offers enhanced voltage rating (300 V versus 250 V) and extended operating temperature range (-40°C ~ 115°C versus -30°C ~ 105°C), providing superior performance margins for demanding applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The HM0840810000G is currently in active production with 836 units in stock, providing supply continuity for the obsolete OSTHM084081. The substitute's support for both through-hole and press-fit mounting provides additional design flexibility while maintaining full backward compatibility with existing press-fit applications.

Frequently Asked Questions (FAQ)

Q: Can HM0840810000G directly replace OSTHM084081 in existing designs?

A: Yes. Both components share identical pitch spacing (0.300"/7.62mm), position count (8), current rating (8 A), wire gauge range (12-28 AWG), and wire termination method (screwless push-in spring). The substitute meets or exceeds all electrical and mechanical requirements of the original part.

Q: What are the key differences between these parts?

A: The HM0840810000G provides enhanced voltage rating (300 V versus 250 V), extended operating temperature range (-40°C ~ 115°C versus -30°C ~ 105°C), and tin-plated brass contacts versus unplated brass. The substitute also supports through-hole mounting in addition to press-fit termination.

Q: Are there packaging differences?

A: The OSTHM084081 packaging specification is not provided in the original documentation. The HM0840810000G is supplied in bulk packaging. Confirm packaging requirements with your procurement specification.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the OSTHM084081 and HM0840810000G are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the inventory status for the substitute part?

A: The HM0840810000G has 836 units in stock as new original inventory, ensuring availability for immediate procurement.

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