OSTHR065081 Equivalent & Substitute Parts

Part Overview

The OSTHR065081 is a 2-position wire-to-board terminal block manufactured by On Shore Technology Inc., designed for angled PCB mounting with 0.300" (7.62mm) pitch spacing. This component features screwless push-in spring termination and supports wire gauges from 12-28 AWG at 10A/300V ratings. The product is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs or new production requirements.

Key Parameters

Parameter	Value
Positions Per Level	2
Pitch	0.300" (7.62mm)
Current Rating	10 A
Voltage Rating	300 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
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the OSTHR065081 is based on strict equivalence across the following critical parameters:

Electrical Compatibility: Current (10A), voltage (300V), and wire gauge range (12-28 AWG) must be identical
Mechanical Compatibility: Pitch spacing (0.300"/7.62mm), positions per level (2), and through-hole mounting type must match
Termination Method: Screwless push-in spring termination is required
Environmental Compliance: RoHS3 compliance and MSL rating must be maintained
Housing and Contact Materials: Thermoplastic housing with brass contacts ensures functional equivalence

The substitute part HR0650810000G by Amphenol Anytek meets all these criteria. The primary difference is mating orientation (45° angle versus straight angled configuration), which represents a geometric variation that does not affect electrical performance or PCB footprint compatibility for applications where wire entry angle is not design-critical.

Parameter Comparison

Parameter	OSTHR065081 (On Shore)	HR0650810000G (Amphenol Anytek)	Compatibility
Positions Per Level	2	2	Equivalent
Pitch	0.300" (7.62mm)	0.300" (7.62mm)	Equivalent
Current Rating	10 A	10 A	Equivalent
Voltage Rating	300 V	300 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	-30°C ~ 105°C	-40°C ~ 115°C	Substitute Exceeds
Mating Orientation	Angled	45° (135°) Angle with Board	Geometric Variation
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
MSL Rating	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Obsolete	Active	Substitute Available

Engineering Selection Recommendations

The HR0650810000G from Amphenol Anytek is the direct functional equivalent for OSTHR065081 applications. Selection is supported by:

Regulatory Compliance: Both parts maintain ROHS3 compliance and identical MSL ratings, ensuring no additional supply chain or manufacturing constraints
Active Product Status: HR0650810000G is currently in active production with confirmed inventory availability (1071 pcs), eliminating obsolescence risk associated with the OSTHR065081
Enhanced Operating Range: The substitute part extends the upper operating temperature limit to 115°C (versus 105°C), providing additional thermal margin for demanding applications
Electrical and Mechanical Equivalence: All critical parameters—current, voltage, wire gauge, pitch, and termination method—are identical, ensuring direct functional replacement without circuit redesign

The geometric difference in mating orientation (45° angle versus straight angle) is a design consideration only for applications where wire entry angle is physically constrained. For standard PCB-mounted configurations, this variation does not impact electrical performance or signal integrity.

Frequently Asked Questions (FAQ)

Q: Can HR0650810000G be used as a direct drop-in replacement for OSTHR065081?

A: Yes, for electrical and mechanical functionality. The HR0650810000G maintains identical current, voltage, wire gauge, pitch, and termination specifications. The mating orientation difference (45° versus straight angle) is a geometric consideration that does not affect electrical compatibility. Physical board layout must accommodate the wire entry angle.

Q: What is the significance of the tin plating on the HR0650810000G contacts?

A: Tin plating on brass contacts improves corrosion resistance and solderability compared to bare brass. This enhancement does not affect electrical performance in push-in spring termination applications and provides superior long-term reliability in humid or corrosive environments.

Q: Does the extended operating temperature range of HR0650810000G affect compatibility?

A: No. The HR0650810000G operating range (-40°C to 115°C) encompasses the OSTHR065081 range (-30°C to 105°C). Applications designed for the original part will operate within the substitute's rated temperature envelope.

Q: Are there packaging differences between these parts?

A: The OSTHR065081 packaging is not specified in available data. The HR0650810000G is supplied in bulk packaging. Confirm packaging requirements with your procurement department if tape-and-reel or alternative formats are required.

Q: What compliance certifications apply to both parts?

A: Both OSTHR065081 and HR0650810000G are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.90.4000. No additional compliance documentation is required for substitution.

Q: Is the wire termination method identical between the two parts?

A: Yes. Both parts use screwless push-in spring termination with leg spring mechanisms, supporting identical wire gauge ranges (12-28 AWG) and requiring no tool changes or operator retraining.

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