TA3F Mini XLR 3-Position Circular Connector Plug - Equivalent & Substitute Parts

Part Overview

The TA3F is a 3-position circular connector plug with female sockets designed for audio applications. Manufactured by Switchcraft Inc. as part of the Tini Q-G® TA series, this connector features solder termination, shielded construction, and latch lock fastening. The TA3F is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations where this connector type is specified.

Key Parameters

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

Substitute Part Grouping Explanation

Substitute parts for the TA3F are identified based on matching the following critical parameters: connector type (plug with female sockets), number of positions (3), shell size (Mini XLR), fastening mechanism (latch lock), and keyed orientation. These parameters ensure mechanical and electrical compatibility within audio applications.

Two substitute parts meet these criteria:

TA3FX (Direct Manufacturer Equivalent): Manufactured by Switchcraft Inc., this part maintains identical mechanical and electrical specifications to the TA3F while representing the active production variant within the Tini Q-G® TA-X series. The primary distinction is product status and RoHS compliance level.

AG3F (Cross-Manufacturer Alternative): Manufactured by Amphenol Audio, this part shares the same connector type, position count, shell size, fastening type, and orientation. Differences exist in shell material composition, contact finish, shielding configuration, and operating temperature range, which must be evaluated for specific application requirements.

Parameter Comparison

Parameter	TA3F	TA3FX	AG3F
Manufacturer	Switchcraft Inc.	Switchcraft Inc.	Amphenol Audio
Connector Type	Plug, Female Sockets	Plug, Female Sockets	Plug, Female Sockets
Number of Positions	3	3	3
Shell Size - Insert	Mini XLR	Mini XLR	Mini XLR
Termination	Solder	Solder	Solder Cup
Fastening Type	Latch Lock	Latch Lock	Latch Lock
Orientation	Keyed	Keyed	Keyed
Shell Material	Copper Alloy	Copper Alloy	Brass
Shell Finish	Nickel	Nickel	Nickel
Contact Finish - Mating	Silver	Silver	Gold
Shielding	Shielded	Shielded	Unshielded
Current Rating	5A	5A	5A
Voltage Rating	125VAC	125VAC	Not Specified
Cable Opening	0.065" ~ 0.155" (1.65mm ~ 3.94mm)	0.065" ~ 0.155" (1.65mm ~ 3.94mm)	0.138" (4.60mm)
Operating Temperature Range	-55°C ~ 85°C	-55°C ~ 85°C	-30°C ~ 80°C
Product Status	Obsolete	Active	Active
RoHS Status	RoHS Non-Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TA3FX Selection: For applications requiring direct functional equivalence with active product availability and modern compliance standards, the TA3FX is the primary substitute. This part maintains identical electrical and mechanical specifications while offering ROHS3 compliance and active manufacturing status. The TA3FX is suitable for new designs and legacy system replacements where Switchcraft connectors are specified.

AG3F Selection: The AG3F presents a cross-manufacturer alternative where Amphenol Audio connectors are acceptable. This part is appropriate for applications where the unshielded configuration is compatible with system requirements and the narrower operating temperature range (-30°C ~ 80°C) meets environmental specifications. The gold contact finish provides enhanced corrosion resistance compared to silver finishes. Cable opening tolerance differences must be evaluated against specific cable specifications.

Selection between TA3FX and AG3F depends on manufacturer preference, supply chain considerations, and specific application environmental and electrical requirements.

Frequently Asked Questions (FAQ)

Q: Can TA3FX directly replace TA3F in existing assemblies? A: Yes. The TA3FX maintains identical connector type, position count, shell size, fastening mechanism, and electrical ratings. Both parts are keyed Mini XLR 3-position plugs with female sockets rated for 5A at 125VAC. Physical and electrical compatibility is confirmed.

Q: What are the key differences between TA3FX and AG3F? A: Primary differences include: shell material (copper alloy vs. brass), contact finish (silver vs. gold), shielding (shielded vs. unshielded), operating temperature range (-55°C ~ 85°C vs. -30°C ~ 80°C), and cable opening tolerance (0.065" ~ 0.155" vs. 0.138"). Both maintain 3-position Mini XLR configuration with latch lock fastening and 5A current rating.

Q: Is the AG3F suitable for shielded audio applications? A: No. The AG3F is unshielded, while the TA3F and TA3FX are shielded. For applications requiring electromagnetic interference protection, the TA3FX is the appropriate selection.

Q: What is the significance of the cable opening differences? A: Cable opening specifications define the acceptable cable diameter range for proper strain relief and backshell engagement. TA3F and TA3FX accept cables from 0.065" to 0.155" diameter. AG3F accepts 0.138" diameter cables. Cable specifications must be verified against connector requirements before substitution.

Q: Are all three parts RoHS compliant? A: No. The TA3F is RoHS non-compliant. Both TA3FX and AG3F are ROHS3 compliant. For applications subject to RoHS requirements, TA3FX or AG3F must be selected.

Q: What is the difference between solder and solder cup termination? A: Both TA3F and TA3FX use solder termination. AG3F uses solder cup termination. Both methods provide permanent wire connections suitable for audio applications. Termination method selection depends on assembly process and equipment availability.

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