OSTTJ077150 Terminal Block Plug - Equivalent & Substitute Parts

Part Overview

The OSTTJ077150 is a 7-position terminal block plug manufactured by On Shore Technology Inc., featuring female sockets with 0.197" (5.00mm) pitch spacing. This component is designed for free-hanging in-line applications with screw termination and operates across -40°C to 115°C. The part is currently active in production with 753 units in stock.

Substitute parts are identified when they maintain compatibility across critical electrical and mechanical parameters including pitch, number of positions, voltage rating, wire gauge compatibility, termination style, and operating temperature range.

Key Parameters

Parameter	Value
Manufacturer Part Number	OSTTJ077150
Manufacturer	On Shore Technology Inc.
Category	Terminal Blocks
Type	Plug, Female Sockets
Number of Positions	7
Pitch	0.197" (5.00mm)
Voltage - UL	300 V
Wire Gauge - AWG	12-30 AWG
Wire Gauge - mm²	0.34-2.5mm²
Termination Style	Screw
Mounting Type	Free Hanging (In-Line)
Operating Temperature	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0
Torque - Screw	0.56 Nm (5.0 Lb-In)
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the OSTTJ077150 is determined by strict alignment across the following critical parameters:

Mandatory Matching Parameters:

Number of Positions: 7
Pitch: 0.197" (5.00mm)
Voltage - UL: 300 V
Termination Style: Screw
Mounting Type: Free Hanging (In-Line)
Operating Temperature Range: -40°C ~ 115°C
Material Flammability Rating: UL94 V-0
Torque - Screw: 0.56 Nm (5.0 Lb-In)

Compatible Wire Gauge Ranges: Substitute parts must support wire gauges within or overlapping the 12-30 AWG (0.34-2.5mm²) range.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance and active product status.

The two identified substitutes meet these criteria while accommodating variations in contact material, housing material, wire entry orientation, and wire strip length specifications.

Parameter Comparison

Parameter	OSTTJ077150 (On Shore)	0395200007 (Molex)	TJ0771500000G (Amphenol Anytek)
Number of Positions	7	7	7
Pitch	0.197" (5.00mm)	0.197" (5.00mm)	0.197" (5.00mm)
Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets
Voltage - UL	300 V	300 V	300 V
Wire Gauge - AWG	12-30 AWG	12-30 AWG	12-24 AWG
Termination Style	Screw	Screw - Rising Cage Clamp	Screw
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Operating Temperature	-40°C ~ 115°C	-40°C ~ 115°C	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Torque - Screw	0.56 Nm (5.0 Lb-In)	0.56 Nm (5.0 Lb-In)	0.56 Nm (5.0 Lb-In)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Contact Material	Brass	Phosphor Bronze	Copper
Housing Material	Brass	Polyamide (PA66), Nylon 6/6	Thermoplastic
Wire Strip Length	7-8mm	6.5mm	7-8mm

Engineering Selection Recommendations

All three parts maintain active product status and ROHS3 compliance, qualifying them for direct substitution based on the provided electrical and mechanical parameters.

OSTTJ077150 (On Shore Technology Inc.): Primary specification. Brass contact and housing materials. Wire strip length 7-8mm. Supports 12-30 AWG wire gauge range.

0395200007 (Molex): Meets all mandatory substitution criteria. Features rising cage clamp termination mechanism with retention latches. Polyamide housing with phosphor bronze contacts. Wire strip length 6.5mm. Supports 12-30 AWG wire gauge range. Current rating specified at 18 A UL.

TJ0771500000G (Amphenol Anytek): Meets all mandatory substitution criteria. Copper contacts with thermoplastic housing. Wire strip length 7-8mm. Supports 12-24 AWG wire gauge range (narrower than primary part). Current rating specified at 20 A IEC and 20 A UL. Includes retention latches.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0395200007 directly replace the OSTTJ077150?

A: Yes. Both parts share identical pitch (5.00mm), position count (7), voltage rating (300V UL), operating temperature range (-40°C to 115°C), flammability rating (UL94 V-0), and screw torque specification (0.56 Nm). Wire gauge compatibility spans 12-30 AWG for both parts. The Molex part features a rising cage clamp termination mechanism and retention latches, which are functional enhancements that do not prevent substitution.

Q: Can the Amphenol Anytek TJ0771500000G directly replace the OSTTJ077150?

A: Yes. Both parts share identical pitch (5.00mm), position count (7), voltage rating (300V), operating temperature range (-40°C to 115°C), flammability rating (UL94 V-0), and screw torque specification (0.56 Nm). The Amphenol part supports 12-24 AWG wire gauge, which overlaps the primary part's 12-30 AWG range. Applications requiring wire gauges larger than 24 AWG (2.5mm²) should use the primary OSTTJ077150 or Molex 0395200007.

Q: What are the key differences between these three parts?

A: Contact material varies: brass (OSTTJ077150), phosphor bronze (Molex), and copper (Amphenol). Housing material differs: brass (OSTTJ077150), polyamide nylon (Molex), and thermoplastic (Amphenol). Wire strip length is 7-8mm for OSTTJ077150 and Amphenol, versus 6.5mm for Molex. The Molex and Amphenol parts include retention latches; the primary part does not specify this feature. Wire gauge support is 12-30 AWG for OSTTJ077150 and Molex, versus 12-24 AWG for Amphenol.

Q: Are all three parts RoHS3 compliant?

A: Yes. OSTTJ077150, 0395200007, and TJ0771500000G are all ROHS3 compliant and carry active product status.

Q: What is the screw torque specification for all three parts?

A: All three parts specify identical screw torque: 0.56 Nm (5.0 Lb-In).

Q: Do these parts support the same operating temperature range?

A: Yes. All three parts operate across -40°C to 115°C.

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