OSTET120252 Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The OSTET120252 is a 12-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.300" (7.62mm) pitch spacing and screw termination. This component is classified as obsolete, making equivalent substitutes necessary for ongoing procurement and system maintenance. The part operates within a temperature range of -33°C to 105°C and supports wire gauges from 8-24 AWG with a rated voltage of 300V UL.

Key Parameters

Parameter	OSTET120252
Number of Positions	12
Pitch	0.300" (7.62mm)
Type	Plug, Female Sockets
Termination Style	Screw
Mounting Type	Free Hanging (In-Line)
Wire Gauge Range	8-24 AWG
Voltage Rating (UL)	300V
Operating Temperature	-33°C ~ 105°C
Material Flammability	UL94 V-0
Torque Specification	0.79 Nm (7.0 Lb-In)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTET120252 is determined by the following critical parameters:

Primary Compatibility Criteria:

12-position configuration with 0.300" (7.62mm) pitch spacing
Screw-based termination style
Free hanging (in-line) mounting orientation
Female socket contact type
Wire gauge compatibility: 8-24 AWG
UL94 V-0 flammability rating
ROHS3 compliance

Substitute Parts Identified:

ET1202520000G (Amphenol Anytek) – Direct functional equivalent with enhanced specifications
ET1201520000G (Amphenol Anytek) – Manufacturer-recommended alternative with blade socket configuration

Both substitutes maintain the core 12-position, 7.62mm pitch architecture and screw termination methodology required for mechanical and electrical compatibility with the original OSTET120252 design.

Parameter Comparison

Parameter	OSTET120252	ET1202520000G	ET1201520000G
Manufacturer	On Shore Technology Inc.	Amphenol Anytek	Amphenol Anytek
Number of Positions	12	12	12
Pitch	0.300" (7.62mm)	0.300" (7.62mm)	0.300" (7.62mm)
Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Blade Sockets
Termination Style	Screw	Screw	Screw - Rising Cage Clamp
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Wire Gauge Range	8-24 AWG	8-24 AWG	8-24 AWG
Voltage Rating (UL)	300V	600V	300V
Operating Temperature	-33°C ~ 105°C	-40°C ~ 115°C	-40°C ~ 115°C
Material Flammability	UL94 V-0	UL94 V-0	UL94 V-0
Torque Specification	0.79 Nm (7.0 Lb-In)	0.79 Nm (7.0 Lb-In)	0.79 Nm (7.0 Lb-In)
Product Status	Obsolete	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ET1202520000G Selection Criteria: This substitute maintains identical socket type (female) and termination methodology (screw) to the OSTET120252. The part offers enhanced voltage rating (600V vs. 300V) and extended operating temperature range (-40°C to 115°C vs. -33°C to 105°C). Both components carry ROHS3 compliance and UL94 V-0 flammability certification. This part is recommended for direct replacement in applications where the original OSTET120252 specifications are sufficient, with the added benefit of higher voltage margin and active product status.

ET1201520000G Selection Criteria: This manufacturer-recommended alternative employs blade socket contacts instead of female sockets, requiring verification of mating connector compatibility. The rising cage clamp termination provides an alternative to standard screw termination. Voltage rating matches the original (300V), and operating temperature range is extended. This option is suitable only when blade socket configuration is compatible with existing mating connectors and when rising cage clamp termination is acceptable for the application.

Both substitutes are active products with current manufacturing support, addressing the obsolescence status of the OSTET120252.

Frequently Asked Questions (FAQ)

Q: Can ET1202520000G directly replace OSTET120252 without modification? A: Yes. Both parts share identical 12-position, 7.62mm pitch configuration, female socket type, and screw termination. The ET1202520000G operates at higher voltage (600V) and extended temperature range, making it functionally compatible for applications rated at the original 300V specification.

Q: What is the key difference between ET1202520000G and ET1201520000G? A: The primary difference is socket type. ET1202520000G uses female sockets (matching OSTET120252), while ET1201520000G uses blade sockets. Additionally, ET1201520000G employs rising cage clamp termination rather than standard screw termination. Socket type compatibility must be verified against mating connectors before selection.

Q: Are both substitutes ROHS3 compliant? A: Yes. Both ET1202520000G and ET1201520000G are ROHS3 compliant and carry UL94 V-0 flammability certification, matching the compliance profile of the obsolete OSTET120252.

Q: What wire gauge compatibility exists across all three parts? A: All three parts support 8-24 AWG wire gauge range, ensuring consistent wire termination capability across substitution options.

Q: Does the higher voltage rating of ET1202520000G affect compatibility? A: No. The ET1202520000G 600V rating is a superset of the original 300V specification. Applications designed for 300V operation remain fully compatible. The higher rating provides additional safety margin without requiring circuit redesign.

Q: What is the torque specification for screw termination? A: All three parts specify 0.79 Nm (7.0 Lb-In) screw torque, ensuring consistent installation methodology across the OSTET120252 and both substitutes.

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