OSTV7211151 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The OSTV7211151 is a 21-position terminal block header manufactured by On Shore Technology Inc., featuring female sockets with 0.138" (4.60mm) pitch and 90° right-angle orientation for through-hole mounting. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The substitute part V72111510000G from Amphenol Anytek provides functional equivalence while maintaining active product status.

Key Parameters

Parameter	Value
Number of Positions	21
Pitch	0.138" (4.60mm)
Header Orientation	90°, Right Angle
Mounting Type	Through Hole
Termination Style	Solder
Type	Header, Female Sockets
Voltage - UL	300 V
Operating Temperature Range	-30°C ~ 105°C (Main Part)
Housing Material	Thermoplastic
Contact Material	Phosphor Bronze
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of OSTV7211151 with V72111510000G is based on strict equivalence of the following critical parameters:

Position Count & Pitch: Both parts feature 21 positions at 0.138" (4.60mm) pitch, ensuring mechanical and electrical compatibility in PCB layouts
Orientation & Mounting: Both employ 90° right-angle through-hole mounting, maintaining identical form factor and installation method
Electrical Ratings: Both rated at 300 V UL, supporting equivalent voltage applications
Material Specifications: Identical phosphor bronze contacts and thermoplastic housing with UL94 V-0 flammability rating
Compliance: Both ROHS3 compliant and REACH unaffected, meeting regulatory requirements
Termination: Both use solder termination, compatible with standard PCB assembly processes

The primary distinction is current rating: OSTV7211151 supports 8 A (UL), while V72111510000G supports 4 A (UL). This difference must be evaluated against application requirements.

Parameter Comparison

Parameter	OSTV7211151 (On Shore Technology)	V72111510000G (Amphenol Anytek)
Manufacturer Part Number	OSTV7211151	V72111510000G
Series	OSTV7	V7
Product Status	Obsolete	Active
Number of Positions	21	21
Pitch	0.138" (4.60mm)	0.138" (4.60mm)
Header Orientation	90°, Right Angle	90°, Right Angle
Mounting Type	Through Hole	Through Hole
Termination Style	Solder	Solder
Type	Header, Female Sockets	Header, Female Sockets
Current - UL	8 A	4 A
Voltage - UL	300 V	300 V
Color	Green	Green
Operating Temperature Range	-30°C ~ 105°C	-40°C ~ 115°C
Contact Material	Phosphor Bronze	Phosphor Bronze
Housing Material	Thermoplastic	Thermoplastic
Contact Tail Length	0.134" (3.40mm)	0.134" (3.40mm)
Insulation Height	0.260" (6.60mm)	0.260" (6.60mm)
Material Flammability Rating	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

V72111510000G is the designated manufacturer-recommended substitute for OSTV7211151. Selection of this substitute is supported by:

Active Product Status: V72111510000G maintains active production status, ensuring long-term availability and supply chain continuity
Regulatory Compliance: Both parts meet ROHS3 and REACH requirements, with identical ECCN and HTSUS classifications
Mechanical Compatibility: Identical pitch, position count, orientation, and mounting method ensure direct PCB layout compatibility without redesign
Electrical Equivalence: Both rated at 300 V UL with phosphor bronze contacts and UL94 V-0 housing material
Current Rating Consideration: The reduction from 8 A to 4 A in the substitute part requires application-level verification to confirm compatibility with circuit current demands

The extended operating temperature range of V72111510000G (-40°C ~ 115°C versus -30°C ~ 105°C) provides additional thermal margin for demanding environments.

Frequently Asked Questions (FAQ)

Q: Can V72111510000G be used as a direct replacement for OSTV7211151 in existing designs?

A: Yes, provided the application current requirement does not exceed 4 A per contact. The 21-position, 4.60mm pitch, 90° right-angle configuration is identical, and both parts use solder termination on through-hole PCBs. No PCB layout modification is required.

Q: What is the significance of the current rating difference between the two parts?

A: OSTV7211151 supports 8 A per contact, while V72111510000G supports 4 A per contact. Applications requiring current levels between 4 A and 8 A per contact cannot use V72111510000G as a substitute. Circuit analysis must confirm that maximum per-contact current remains at or below 4 A.

Q: Are the mechanical dimensions identical between these parts?

A: Yes. Both parts share identical contact tail length (0.134"), insulation height (0.260"), pitch (0.138"), and position count (21). Physical mounting and PCB footprint compatibility is confirmed.

Q: Why is OSTV7211151 classified as obsolete?

A: On Shore Technology Inc. has discontinued this product line. V72111510000G from Amphenol Anytek represents the active equivalent, ensuring continued component availability for new production and field replacements.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8536.69.4040) classifications. Material flammability rating (UL94 V-0) and moisture sensitivity level (MSL 1) are identical.

Q: What is the packaging difference between these parts?

A: OSTV7211151 packaging is not specified in available data. V72111510000G is supplied in bulk packaging. Confirm packaging requirements with your procurement department for order specifications.

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