OSTHM048080 Equivalent & Substitute Parts

Part Overview

The OSTHM048080 is a 4-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for vertical PCB mounting with 10mm pitch spacing. This component features screwless push-in spring termination and supports wire gauges from 12-28 AWG at 8A/250V ratings. The part is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity.

Key Parameters

Parameter	Value
Positions Per Level	4
Pitch	0.394" (10.00mm)
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
Housing Material	Thermoplastic
Contact Material	Brass
Operating Temperature Range	-30°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHM048080 is determined by strict equivalence across the following critical parameters:

Electrical Performance: Current (8A), voltage (250V), and wire gauge acceptance (12-28 AWG) must match exactly
Physical Configuration: 4 positions per level, 10mm pitch, vertical board orientation, and through-hole mounting must be identical
Termination Method: Screwless push-in spring termination is mandatory for form-fit compatibility
Material Specifications: Thermoplastic housing with brass contacts ensures mechanical and electrical consistency
Regulatory Compliance: RoHS3 compliance and REACH unaffected status required for equivalent substitution

The HM0480800000G from Amphenol Anytek meets all substitution criteria across these parameters.

Parameter Comparison

Parameter	OSTHM048080 (On Shore)	HM0480800000G (Amphenol Anytek)	Match Status
Positions Per Level	4	4	Equivalent
Pitch	0.394" (10.00mm)	0.394" (10.00mm)	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
Housing Material	Thermoplastic	Thermoplastic	Equivalent
Contact Material	Brass	Brass - Tin Plated	Compatible
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C	Amphenol Exceeds
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Product Status	Obsolete	Active	Substitute is Active

Engineering Selection Recommendations

The HM0480800000G from Amphenol Anytek is a direct functional equivalent for the obsolete OSTHM048080. Both components maintain identical electrical ratings, physical dimensions, and termination characteristics required for PCB-level wire-to-board connections.

The Amphenol part offers extended operating temperature range (-40°C to 115°C versus -30°C to 105°C) and tin-plated brass contacts, providing enhanced environmental performance. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

The active product status of HM0480800000G ensures ongoing availability and supply chain continuity, eliminating obsolescence risk associated with the original OSTHM048080.

Frequently Asked Questions (FAQ)

Q: Can HM0480800000G be used as a direct replacement for OSTHM048080 in existing designs?

A: Yes. Both components share identical electrical ratings (8A/250V), physical configuration (4 positions, 10mm pitch), mounting method (through-hole), and termination type (screwless push-in spring). No PCB layout or schematic modifications are required.

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

A: Tin plating on brass contacts improves corrosion resistance and enhances contact reliability in humid or corrosive environments. This is a material enhancement that does not affect electrical performance or compatibility with the original design.

Q: Does the extended temperature range of HM0480800000G affect compatibility?

A: No. The extended operating range (-40°C to 115°C) of the Amphenol part encompasses the original specification (-30°C to 105°C). Applications operating within the original temperature limits experience no functional difference.

Q: Are packaging differences between these parts significant?

A: The OSTHM048080 is listed with unspecified packaging, while HM0480800000G is supplied in bulk packaging. Packaging format does not affect component performance or PCB integration. Verify bulk packaging meets your procurement and handling requirements.

Q: What compliance certifications apply to both parts?

A: Both OSTHM048080 and HM0480800000G are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification and 8536.90.4000 HTSUS code, ensuring regulatory equivalence for international applications.

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