OSTV7201250 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The OSTV7201250 is a 20-position terminal block header manufactured by On Shore Technology Inc., featuring female sockets with 0.138" (4.60mm) vertical pitch and through-hole solder termination. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing design support and procurement continuity. The part operates within a 300V UL rating and -30°C to 105°C temperature range, with UL94 V-0 flammability compliance and full RoHS3 compliance.

Key Parameters

Parameter	Value
Number of Positions	20
Pitch	0.138" (4.60mm)
Header Orientation	Vertical
Termination Style	Solder
Mounting Type	Through Hole
Type	Header, Female Sockets
Voltage - UL	300 V
Operating Temperature Range	-30°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the OSTV7201250 is determined by strict equivalence across the following critical parameters:

20-position configuration with 0.138" (4.60mm) pitch spacing
Vertical header orientation with female socket type
Through-hole solder termination method
300V UL voltage rating
UL94 V-0 flammability classification
RoHS3 compliance status

The substitute part V72012500000G (Amphenol Anytek) meets all mandatory electrical and mechanical parameters. Variations in current rating (8A vs. 4A UL), operating temperature range (-30°C~105°C vs. -40°C~115°C), and contact mating finish do not preclude substitution when the application requirements fall within the substitute's specifications.

Parameter Comparison

Parameter	OSTV7201250 (On Shore Technology)	V72012500000G (Amphenol Anytek)	Compatibility
Number of Positions	20	20	Equivalent
Pitch	0.138" (4.60mm)	0.138" (4.60mm)	Equivalent
Header Orientation	Vertical	Vertical	Equivalent
Type	Header, Female Sockets	Header, Female Sockets	Equivalent
Termination Style	Solder	Solder	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Voltage - UL	300 V	300 V	Equivalent
Current - UL	8 A	4 A	Substitute rated lower; verify application current requirements
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C	Substitute has wider range
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Contact Material	Phosphor Bronze	Phosphor Bronze	Equivalent
Housing Material	Thermoplastic	Thermoplastic	Equivalent
Contact Tail Length	0.134" (3.40mm)	0.134" (3.40mm)	Equivalent
Insulation Height	0.571" (14.50mm)	0.571" (14.50mm)	Equivalent
Product Status	Obsolete	Active	Substitute is actively manufactured

Engineering Selection Recommendations

The V72012500000G from Amphenol Anytek is a direct functional equivalent for the obsolete OSTV7201250. Both components maintain identical mechanical footprints, electrical ratings at 300V UL, and regulatory compliance (UL94 V-0, RoHS3). The substitute part is currently in active production status, ensuring long-term availability and supply chain continuity.

The primary consideration is the reduced UL current rating of the substitute (4A vs. 8A). Applications operating at or below 4A UL current present no compatibility issues. Designs requiring the full 8A capacity of the original part must evaluate whether the substitute's 4A rating meets circuit requirements.

Both parts carry identical contact material (Phosphor Bronze), housing material (Thermoplastic), and mechanical dimensions, confirming direct PCB compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can V72012500000G be used as a direct replacement for OSTV7201250 in existing designs?

A: Yes, provided the application current does not exceed 4A UL. The mechanical footprint, pitch spacing (4.60mm), vertical orientation, and electrical ratings (300V) are identical. No PCB layout changes are required.

Q: What is the impact of the lower current rating on the substitute part?

A: The V72012500000G is rated for 4A UL versus the original 8A UL. If your circuit operates below 4A, the substitute is fully compatible. If your design requires 8A capacity, the substitute does not meet those specifications.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS3 compliant and carry UL94 V-0 flammability ratings. Regulatory compliance is equivalent.

Q: Does the substitute part have a wider operating temperature range?

A: Yes. The V72012500000G operates from -40°C to 115°C, compared to the original -30°C to 105°C. This provides additional thermal margin for applications in extreme environments.

Q: What is the packaging difference between these parts?

A: The original OSTV7201250 packaging is listed as unspecified. The substitute V72012500000G is supplied in bulk packaging. Confirm bulk packaging meets your procurement and handling requirements.

Q: Are the contact materials and housing materials identical?

A: Yes. Both use Phosphor Bronze contacts and Thermoplastic housing, ensuring consistent electrical and mechanical performance.

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