TA3FB Equivalent & Substitute Parts

Part Overview

The TA3FB is a 3-position circular connector plug with female sockets designed for solder termination. Manufactured by Switchcraft Inc., this Mini XLR connector is part of the Tini Q-G® TA series and is classified as obsolete. The connector features a shielded design with latch lock fastening, suitable for audio applications requiring reliable signal transmission in environments ranging from -55°C to 85°C.

Due to its obsolete product status, locating replacement inventory may present supply chain challenges. The TA3FBX serves as an active production equivalent that maintains functional compatibility while offering improved availability and current compliance certifications.

Key Parameters

Parameter	Value
Connector Type	Plug, Female Sockets
Number of Positions	3
Shell Size - Insert	Mini XLR
Termination	Solder
Fastening Type	Latch Lock
Shielding	Shielded
Current Rating	5A
Voltage Rating	125VAC
Operating Temperature	-55°C to 85°C
Cable Opening	0.065" ~ 0.155" (1.65mm ~ 3.94mm)
Features	Backshell, Cable Clamp, Strain Relief

Substitute Part Grouping Explanation

The TA3FBX qualifies as a direct substitute for the TA3FB based on identical electrical and mechanical parameters. Both connectors share the same core specifications: 3-position Mini XLR configuration, female socket plug design, solder termination, latch lock fastening, shielded construction, 5A current rating, 125VAC voltage rating, and identical operating temperature range. The cable opening dimensions and physical features including backshell, cable clamp, and strain relief are equivalent across both parts.

The substitution is valid based on these matching parameters:

Connector type and gender
Position count and shell size
Termination method
Electrical ratings (current and voltage)
Operating temperature range
Mechanical fastening and orientation
Shielding configuration

Parameter Comparison

Parameter	TA3FB	TA3FBX
Manufacturer	Switchcraft Inc.	Switchcraft Inc.
Series	Tini Q-G® TA	Tini Q-G® TA-X
Product Status	Obsolete	Active
Connector Type	Plug, Female Sockets	Plug, Female Sockets
Number of Positions	3	3
Shell Size - Insert	Mini XLR	Mini XLR
Termination	Solder	Solder
Fastening Type	Latch Lock	Latch Lock
Shielding	Shielded	Shielded
Current Rating (Amps)	5A	5A
Voltage Rating	125VAC	125VAC
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C
Cable Opening	0.065" ~ 0.155" (1.65mm ~ 3.94mm)	0.065" ~ 0.155" (1.65mm ~ 3.94mm)
Features	Backshell, Cable Clamp, Strain Relief	Backshell, Cable Clamp, Strain Relief
Shell Material	Copper Alloy	Copper Alloy
Shell Finish	Chrome	Chrome
Contact Finish - Mating	Silver	Silver
Color	Black	Black
RoHS Status	RoHS non-compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The TA3FBX is the appropriate selection for new designs and replacement applications. While the TA3FB remains functionally equivalent in electrical and mechanical performance, its obsolete status creates supply chain risk. The TA3FBX maintains identical connector specifications and is currently in active production with improved inventory availability.

A significant distinction exists in regulatory compliance: the TA3FBX carries ROHS3 certification, whereas the TA3FB is RoHS non-compliant. For applications subject to RoHS requirements or future regulatory compliance mandates, the TA3FBX is the required choice. Both parts maintain equivalent REACH and ECCN classifications.

For legacy system maintenance where original TA3FB inventory is available, direct substitution with TA3FBX is permissible due to identical functional parameters. No design modifications or re-qualification are necessary for this substitution.

Frequently Asked Questions (FAQ)

Q: Can TA3FBX directly replace TA3FB in existing assemblies?

A: Yes. Both connectors share identical electrical ratings (5A, 125VAC), mechanical configuration (3-position Mini XLR, solder termination, latch lock fastening), and operating temperature range (-55°C to 85°C). Physical dimensions and cable opening specifications are equivalent.

Q: What is the primary reason to transition from TA3FB to TA3FBX?

A: The TA3FB is classified as obsolete, creating long-term supply availability concerns. The TA3FBX is in active production status, ensuring reliable procurement. Additionally, TA3FBX carries ROHS3 compliance certification, addressing regulatory requirements that TA3FB does not meet.

Q: Are there packaging differences between these parts?

A: The TA3FB is supplied in standard packaging, while TA3FBX is available in bulk packaging. This distinction affects order quantities and logistics but does not impact connector functionality or performance.

Q: Do both connectors support the same cable specifications?

A: Yes. Both parts accommodate cable openings of 0.065" to 0.155" (1.65mm to 3.94mm) and include identical strain relief, cable clamp, and backshell features.

Q: Is re-qualification required when substituting TA3FB with TA3FBX?

A: No. Identical electrical, mechanical, and thermal specifications eliminate the need for design re-qualification or performance re-testing for this substitution.

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