A-TB381-TJ07U Terminal Block Plug Equivalent & Substitute Parts

Part Overview

The A-TB381-TJ07U is a 7-position terminal block plug manufactured by Assmann WSW Components, featuring female sockets with 0.150" (3.81mm) pitch spacing and 180° free-hanging in-line mounting. This component is rated for 10 A at 300 V (UL) and accepts wire gauges from 16-28 AWG with screw termination. The part maintains active product status and is RoHS3 compliant with UL94 V-0 flammability rating.

Equivalent and substitute parts are identified based on matching core electrical and mechanical specifications: 7-position configuration, 3.81mm pitch, female socket type, 300 V rating, screw termination, and free-hanging in-line mounting. Substitutes must accommodate the specified wire gauge range and maintain compatible dimensional characteristics.

Key Parameters

Parameter	A-TB381-TJ07U
Manufacturer	Assmann WSW Components
Number of Positions	7
Pitch	0.150" (3.81mm)
Type	Plug, Female Sockets
Plug Wire Entry	180°
Termination Style	Screw
Mounting Type	Free Hanging (In-Line)
Current - UL	10 A
Voltage - UL	300 V
Wire Gauge - AWG	16-28 AWG
Wire Gauge - mm²	1.5mm²
Operating Temperature	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Core Compatibility Requirements:

7-position configuration with 0.150" (3.81mm) pitch spacing
Female socket plug type with 180° wire entry orientation
Free-hanging in-line mounting configuration
Screw-based termination mechanism
300 V UL voltage rating
Wire gauge acceptance range compatible with 16-28 AWG minimum
UL94 V-0 flammability rating
RoHS3 compliance status

All identified substitute parts meet these core requirements. Variations in current rating (8 A vs. 10 A), wire gauge upper limits (26-30 AWG), torque specifications, and housing material composition do not preclude substitution when the application does not demand the specific higher current or extended wire gauge capability of the original part.

Parameter Comparison

Parameter	A-TB381-TJ07U (Assmann)	0395100007 (Molex)	0395105007 (Molex)	1803620 (Phoenix Contact)	1871410000 (Weidmüller)	5447913 (Phoenix Contact)	OSTTJ0731530 (On Shore)	TJ0731530000G (Amphenol)
Number of Positions	7	7	7	7	7	7	7	7
Pitch	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)	0.150" (3.81mm)
Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets
Plug Wire Entry	180°	180°	180°	180°	180°	180°	Not specified	180°
Termination Style	Screw	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp	Screw - Clamping Yoke (Tension Sleeve)	Screw	Screw	Screw - Rising Cage Clamp
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Current - UL	10 A	8 A	8 A	8 A	10 A	8 A	Not specified	10 A
Voltage - UL	300 V	300 V	300 V	300 V	300 V	300 V	300 V	300 V
Wire Gauge - AWG	16-28 AWG	16-30 AWG	16-30 AWG	14-30 AWG	16-28 AWG	14-30 AWG	16-26 AWG	16-26 AWG
Operating Temperature	-40°C ~ 115°C	-40°C ~ 115°C	-40°C ~ 115°C	Not specified	-50°C ~ 120°C	Not specified	-40°C ~ 115°C	-40°C ~ 115°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	Not specified	UL94 V-0
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS3 Compliant	RoHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain active product status and meet the core electrical and mechanical specifications of the A-TB381-TJ07U. Selection among substitutes should be based on application-specific requirements:

For applications requiring 10 A UL current rating: The 1871410000 (Weidmüller Omnimate BC) and TJ0731530000G (Amphenol Anytek) maintain the 10 A specification. The 1871410000 additionally provides extended operating temperature range (-50°C ~ 120°C) and IP20 ingress protection rating.

For applications with extended wire gauge requirements: The 0395100007, 0395105007 (Molex Eurostyle ESE 39510), 1803620 (Phoenix Contact COMBICON MC), and 5447913 (Phoenix Contact BCP) accept wire gauges up to 30 AWG or 14 AWG minimum, providing flexibility for smaller or larger conductor sizes.

For RoHS3 compliance requirement: The A-TB381-TJ07U, 0395100007, 0395105007, 1803620, OSTTJ0731530, and TJ0731530000G are explicitly RoHS3 compliant. The 1871410000 and 5447913 are RoHS compliant without specific RoHS3 designation.

For standard applications: All eight parts are functionally equivalent for typical 7-position, 3.81mm pitch terminal block applications operating within 300 V and moderate current requirements.

Frequently Asked Questions (FAQ)

Q: Can I substitute a Molex 0395100007 for the Assmann A-TB381-TJ07U?

A: Yes, the 0395100007 is functionally equivalent. Both are 7-position, 3.81mm pitch female socket plugs with 300 V UL rating and free-hanging in-line mounting. The Molex part accepts wire gauges 16-30 AWG (compared to 16-28 AWG for the Assmann) and is rated for 8 A UL (compared to 10 A). Substitution is valid for applications not requiring the higher 10 A current rating.

Q: What is the difference between screw termination and screw with rising cage clamp?

A: Both are screw-based termination mechanisms. The rising cage clamp design (used in Molex, Phoenix Contact COMBICON MC, and Amphenol parts) provides an additional mechanical feature that may improve wire retention and contact pressure consistency. Standard screw termination (Assmann, Weidmüller, Phoenix Contact BCP, On Shore) relies on direct screw clamping. Both are mechanically and electrically compatible for the specified applications.

Q: Does the wire gauge range difference affect substitution?

A: Wire gauge range differences do not preclude substitution if your application operates within the overlapping range. All parts accept 16-26 AWG minimum. If your application uses 27-28 AWG wire, the A-TB381-TJ07U, 1871410000, or TJ0731530000G are required. If your application uses 14-15 AWG wire, the 1803620 or 5447913 (Phoenix Contact) are required.

Q: Are all substitute parts RoHS3 compliant?

A: Six of the eight substitute parts are explicitly RoHS3 compliant: 0395100007, 0395105007, 1803620, OSTTJ0731530, and TJ0731530000G. The 1871410000 (Weidmüller) and 5447913 (Phoenix Contact BCP) are RoHS compliant without specific RoHS3 designation. Verify compliance requirements for your specific application.

Q: Can I use the Weidmüller 1871410000 in high-temperature applications?

A: Yes, the 1871410000 operates across -50°C ~ 120°C, providing a wider temperature range than the A-TB381-TJ07U (-40°C ~ 115°C). It is suitable for applications requiring extended low-temperature operation or temperatures approaching 120°C.

Q: What is the significance of the M2 screw size specification?

A: The M2 screw size indicates the metric diameter of the clamping screw. The A-TB381-TJ07U, 1803620, 1871410000, 5447913, and TJ0731530000G all specify M2 screws. The Molex parts (0395100007, 0395105007) and On Shore OSTTJ0731530 do not specify screw size but are mechanically compatible. Torque specifications vary slightly (0.2-0.34 Nm range) and should be observed during installation.

Q: Is the On Shore OSTTJ0731530 a suitable substitute despite missing specifications?

A: The OSTTJ0731530 meets the core functional requirements: 7-position, 3.81mm pitch, female socket, 300 V rating, screw termination, and free-hanging mounting. However, several parameters are not specified (plug wire entry orientation, flammability rating, contact mating finish). Substitution is valid for applications where these unspecified parameters are not critical to system performance.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message