TA4M Mini XLR 4-Position Circular Connector Receptacle

Part Overview

The TA4M is a 4-position circular connector receptacle with male pins, manufactured by Switchcraft Inc. as part of the Tini Q-G® TA series. This component is designed for audio applications requiring shielded connections with solder termination. The TA4M is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and component procurement.

Substiute Parts

TA4M

Switchcraft Inc.In Stock: 1218TA4M Datasheet

Current PartRFQ

TA4MX

Switchcraft Inc.In Stock: 857TA4MX Datasheet

DirectRFQ

AG4M

Amphenol AudioIn Stock: 1918AG4M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TA4M are identified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Connector type: Receptacle with male pins
• Position count: 4 positions
• Shell size: Mini XLR form factor
• Termination: Solder-based connection
• Current and voltage ratings: 5A at 125VAC minimum
• Operating temperature range: Must encompass or match -55°C to 85°C
• Orientation: Keyed configuration
• Mounting: Free hanging (in-line)

Substitute Classification:

Direct Substitute (TA4MX): Switchcraft Inc. TA4MX maintains identical electrical and mechanical specifications to the TA4M. The TA4MX is part of the Tini Q-G® TA-X series and is currently in active production status with RoHS3 compliance, making it the primary replacement for obsolete TA4M units.

Similar Substitute (AG4M): Amphenol Audio AG4M provides functional equivalence as a 4-position mini XLR receptacle with male pins and solder termination. Differences exist in shell material (brass vs. copper alloy), contact finish (gold vs. silver), shielding configuration (unshielded vs. shielded), and operating temperature range (-30°C to 80°C vs. -55°C to 85°C). The AG4M is suitable for applications where the narrower temperature range and unshielded design are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: The TA4MX is the recommended substitute for the obsolete TA4M. Both components share identical electrical specifications, mechanical dimensions, and operating parameters. The TA4MX is currently in active production with RoHS3 compliance, ensuring long-term availability and regulatory alignment. No design modifications are required for TA4MX substitution.

For Alternative Applications: The AG4M may be considered in applications where the following conditions are met: operating temperature range does not exceed -30°C to 80°C, unshielded operation is acceptable, and gold-plated contacts are compatible with the circuit design. The AG4M's solder cup termination provides equivalent electrical connection capability to the TA4M's solder termination. The AG4M is also RoHS3 compliant and actively produced.

Compliance Considerations: Both substitute parts carry RoHS3 compliance status, whereas the TA4M is non-compliant. For applications subject to RoHS regulations, either substitute part satisfies compliance requirements. The TA4MX maintains the TA4M's UL94 V-0 flammability rating, while the AG4M carries a UL94 HB rating, which may impact suitability for applications with specific flammability requirements.

Frequently Asked Questions (FAQ)

Q: Can the TA4MX be used as a direct drop-in replacement for the TA4M?

A: Yes. The TA4MX maintains identical specifications across all critical parameters including connector type, position count, shell size, termination method, current and voltage ratings, operating temperature range, and mechanical dimensions. No circuit modifications or mechanical redesign is required.

Q: What are the key differences between the TA4MX and AG4M?

A: The TA4MX is manufactured by Switchcraft Inc. and maintains the TA4M's shielded design, copper alloy shell material, and silver contact finish. The AG4M is manufactured by Amphenol Audio with an unshielded design, brass shell material, and gold contact finish. The AG4M's operating temperature range is narrower (-30°C to 80°C versus -55°C to 85°C). The TA4MX is the preferred substitute when shielding and extended temperature range are required.

Q: Is the AG4M suitable for applications requiring shielded connections?

A: No. The AG4M is specified as unshielded, whereas the TA4M and TA4MX are shielded. For applications requiring electromagnetic interference rejection or shielded signal transmission, the TA4MX is the appropriate choice.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both the TA4MX and AG4M are RoHS3 compliant. The original TA4M is non-compliant. Substitution with either part satisfies RoHS regulatory requirements.

Q: What is the difference between solder and solder cup termination?

A: Both the TA4M and TA4MX use solder termination, while the AG4M uses solder cup termination. Both methods provide equivalent electrical connection through solder joints. Solder cup termination may offer slightly different mechanical handling characteristics during assembly but maintains electrical compatibility.

Q: Can the AG4M be used in applications with operating temperatures below -30°C or above 80°C?

A: No. The AG4M is rated for -30°C to 80°C operation. Applications requiring the TA4M's extended range of -55°C to 85°C must use the TA4MX.

Q: What is the cable opening specification, and does it affect substitution?

A: The TA4M and TA4MX accept cable diameters from 0.065" to 0.155" (1.65mm to 3.94mm). The AG4M accepts 0.138" (4.60mm) cable diameter. Verify cable diameter compatibility with the selected substitute part before assembly.