OSTHB082180 Equivalent & Substitute Parts

Part Overview

The OSTHB082180 is an 8-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for horizontal PCB mounting with 7.5mm pitch spacing. This component features screwless push-button clamp termination and supports wire gauges from 14-20 AWG at 10A/300V ratings. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Positions Per Level	8
Pitch	0.295" (7.50mm)
Mating Orientation	Horizontal with Board
Current Rating	10 A
Voltage Rating	300 V
Wire Gauge	14-20 AWG
Mounting Type	Through Hole
Wire Termination	Screwless - Push Button Clamp
Features	Interlocking (Side)
Housing Material	Thermoplastic
Contact Material - Plating	Brass
Operating Temperature Range	-30°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTHB082180 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Identical current (10A) and voltage (300V) ratings
Mechanical Compatibility: Matching pitch (7.50mm), position count (8), and through-hole mounting configuration
Termination Method: Screwless push-button clamp wire termination
Physical Form Factor: Horizontal with board mating orientation and side interlocking features
Wire Gauge Support: 14-20 AWG acceptance range
Material Specifications: Thermoplastic housing with brass-plated contacts
Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The substitute part HB0821800000G manufactured by Amphenol Anytek meets all these criteria and qualifies as a direct functional equivalent.

Parameter Comparison

Parameter	OSTHB082180 (On Shore)	HB0821800000G (Amphenol Anytek)	Match Status
Positions Per Level	8	8	Identical
Pitch	0.295" (7.50mm)	0.295" (7.50mm)	Identical
Mating Orientation	Horizontal with Board	Horizontal with Board	Identical
Current Rating	10 A	10 A	Identical
Voltage Rating	300 V	300 V	Identical
Wire Gauge	14-20 AWG	14-20 AWG	Identical
Mounting Type	Through Hole	Through Hole	Identical
Wire Termination	Screwless - Push Button Clamp	Screwless - Push Button Clamp	Identical
Features	Interlocking (Side)	Interlocking (Side)	Identical
Housing Material	Thermoplastic	Thermoplastic	Identical
Contact Material - Plating	Brass	Brass - Tin Plated	Compatible
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C	Substitute Exceeds
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Product Status	Obsolete	Active	Substitute Active

Engineering Selection Recommendations

The HB0821800000G from Amphenol Anytek is a direct functional substitute for the obsolete OSTHB082180. Both components maintain identical electrical and mechanical specifications across all critical parameters. The substitute part offers the following advantages:

Active Product Status: HB0821800000G is currently in active production, ensuring long-term availability and supply chain stability
Enhanced Temperature Range: Operating range of -40°C to 115°C exceeds the original -30°C to 105°C specification, providing broader application flexibility
Improved Contact Plating: Tin-plated brass contacts provide enhanced corrosion resistance compared to standard brass plating
Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental standards
Inventory Availability: 1043 units in stock provide immediate procurement capability

Selection of HB0821800000G eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can HB0821800000G be used as a direct replacement for OSTHB082180 without PCB redesign?

A: Yes. Both components share identical pitch (7.50mm), position count (8), mounting type (through hole), and termination method (screwless push-button clamp). PCB footprints are compatible without modification.

Q: What is the difference between brass and brass tin-plated contacts?

A: Tin plating provides enhanced corrosion resistance and improved contact reliability in humid or corrosive environments. Both materials meet the electrical requirements of this application.

Q: Does the extended temperature range of HB0821800000G affect compatibility?

A: No. The extended range (-40°C to 115°C versus -30°C to 105°C) represents a superset of the original specification. Applications within the original temperature range operate identically.

Q: Are the wire termination methods identical between both parts?

A: Yes. Both components use screwless push-button clamp termination and accept 14-20 AWG wire gauges without modification to assembly procedures.

Q: What is the significance of the side interlocking feature?

A: Side interlocking prevents accidental component separation during assembly and operation, maintaining mechanical stability on the PCB. Both parts incorporate this feature identically.

Q: Is packaging type a consideration for substitution?

A: Packaging (bulk for HB0821800000G) does not affect electrical or mechanical performance. Packaging selection is determined by procurement and inventory management requirements rather than functional compatibility.

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