OSTHM024080 Equivalent & Substitute Parts

Part Overview

The OSTHM024080 is a 2-position wire-to-board terminal block manufactured by On-Shore Technology, designed for vertical PCB mounting with 0.300" (7.62mm) pitch spacing. This component features screwless push-in spring termination and is rated for 8A at 250V across wire gauges 12-28 AWG. The product is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing applications and new designs.

Key Parameters

Parameter	Value
Positions Per Level	2
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	Through Hole
Wire Termination	Screwless - Leg Spring, Push-In Spring
Operating Temperature Range	-30°C ~ 105°C
Housing Material	Thermoplastic
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHM024080 is determined by strict equivalence across the following critical parameters:

Positions and Pitch: 2-position configuration at 0.300" (7.62mm) spacing ensures PCB footprint compatibility
Mating Orientation: Vertical with board mounting maintains assembly compatibility
Wire Termination Method: Screwless push-in spring termination provides identical connection interface
Mounting Type: Through-hole PCB mounting preserves board integration
Wire Gauge Compatibility: 12-28 AWG acceptance range must be maintained or exceeded
Electrical Ratings: Current and voltage ratings must meet or exceed the original specification
Environmental Compliance: RoHS3 compliance and operating temperature range support equivalent regulatory and operational requirements

The substitute part HM0240800000G by Amphenol Anytek meets all critical substitution criteria while offering enhanced electrical performance and active product status.

Parameter Comparison

Parameter	OSTHM024080 (On-Shore Technology)	HM0240800000G (Amphenol Anytek)
Positions Per Level	2	2
Pitch	0.300" (7.62mm)	0.300" (7.62mm)
Mating Orientation	Vertical with Board	Vertical with Board
Current Rating	8 A	8 A
Voltage Rating	250 V	300 V
Wire Gauge	12-28 AWG	12-28 AWG
Mounting Type	Through Hole	Through Hole
Wire Termination	Screwless - Leg Spring, Push-In Spring	Screwless - Leg Spring, Push-In Spring
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C
Housing Material	Thermoplastic	Thermoplastic
Contact Plating	Brass	Brass - Tin Plated
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active

Engineering Selection Recommendations

The HM0240800000G represents a direct functional equivalent to the OSTHM024080 with measurable performance advantages. Both components maintain identical mechanical and electrical interfaces across all critical substitution parameters. The HM0240800000G offers enhanced voltage rating (300V vs. 250V), extended operating temperature range (-40°C to 115°C vs. -30°C to 105°C), and active product status ensuring long-term availability and supply chain continuity. Both components satisfy ROHS3 compliance and MSL 1 moisture sensitivity requirements. The tin-plated brass contact material in the HM0240800000G provides improved corrosion resistance compared to unplated brass. Selection of the HM0240800000G eliminates obsolescence risk while maintaining full backward compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Will the HM0240800000G fit the same PCB footprint as the OSTHM024080?

A: Yes. Both components share identical 2-position configuration, 0.300" (7.62mm) pitch spacing, and through-hole mounting type. PCB footprints are directly compatible without modification.

Q: Are the wire termination methods identical?

A: Yes. Both components use screwless push-in spring termination with leg spring contact design, providing identical wire insertion and retention characteristics across the 12-28 AWG wire gauge range.

Q: What is the voltage rating difference, and does it affect compatibility?

A: The HM0240800000G is rated for 300V compared to the OSTHM024080 at 250V. This represents enhanced performance capability. Applications operating at or below 250V experience no compatibility issues; the higher rating provides additional design margin.

Q: Does the extended temperature range of the HM0240800000G affect compatibility?

A: No. The HM0240800000G operating range of -40°C to 115°C encompasses the original -30°C to 105°C specification. Applications within the original temperature range operate identically on both components.

Q: Are both components RoHS3 compliant?

A: Yes. Both the OSTHM024080 and HM0240800000G are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity classification, meeting equivalent regulatory requirements.

Q: What is the significance of tin plating on the HM0240800000G contacts?

A: Tin plating provides enhanced corrosion resistance and improved contact reliability compared to unplated brass. This represents a material upgrade that does not affect electrical or mechanical compatibility.

Q: Why is the OSTHM024080 marked as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The HM0240800000G maintains active product status, ensuring continued availability and manufacturing support for new applications and replacements.

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