Switchcraft C12AZ Equivalent & Substitute Parts

Part Overview

The Switchcraft C12AZ is a 6.35mm (0.250", 1/4") headphone phone jack mono connector with panel mount termination via solder eyelets. This connector is part of the LITTEL-JAX® series and features a single internal switch, nickel-plated copper alloy contacts, and includes mounting hardware with thread lock. The C12AZ is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Phone Jack
Signal Configuration	Mono
Mating Diameter	6.35mm (0.250", 1/4") - Headphone
Number of Positions/Contacts	2 Conductors, 3 Contacts
Internal Switch(s)	Single Switch
Mounting Type	Panel Mount
Termination Method	Solder Eyelet(s)
Shielding	Unshielded
Panel Hole Size	0.375" (9.52mm)
Thread Size	3/8"-32
Voltage Rating	25VDC
Current Rating	1 A
Operating Temperature Range	-20°C ~ 65°C
Contact Material	Copper Alloy with Nickel Plating
Features	Mounting Hardware, Thread Lock

Substitute Part Grouping Explanation

The C12AX serves as a direct substitute for the obsolete C12AZ based on strict parameter equivalence. Both connectors share identical electrical and mechanical specifications across all critical substitution criteria:

Key Parameters for Substitution Compatibility:

Connector type and signal configuration (Phone Jack, Mono)
Mating diameter and contact count (6.35mm, 2 Conductors, 3 Contacts)
Internal switch configuration (Single Switch)
Mounting and termination method (Panel Mount, Solder Eyelet)
Electrical ratings (25VDC, 1 A)
Operating temperature range (-20°C ~ 65°C)
Contact material and plating (Copper Alloy, Nickel)
Panel hole size and thread size (0.375", 3/8"-32)

The C12AX maintains full functional and mechanical compatibility with the C12AZ while offering active product status and current manufacturing availability.

Parameter Comparison

Parameter	C12AZ (Main Part)	C12AX (Substitute)
Manufacturer	Switchcraft Inc.	Switchcraft Inc.
Series	LITTEL-JAX®	LITTEL-JAX®
Product Status	Obsolete	Active
Connector Type	Phone Jack	Phone Jack
Gender	Female	Female
Signal Lines	Mono	Mono
Mating Diameter	6.35mm (0.250", 1/4")	6.35mm (0.250", 1/4")
Number of Positions/Contacts	2 Conductors, 3 Contacts	2 Conductors, 3 Contacts
Internal Switch(s)	Single Switch	Single Switch
Mounting Type	Panel Mount	Panel Mount
Termination	Solder Eyelet(s)	Solder Eyelet(s)
Shielding	Unshielded	Unshielded
Features	Mounting Hardware, Thread Lock	Mounting Hardware, Thread Lock
Voltage - Rated	25VDC	25VDC
Current Rating	1 A	1 A
Operating Temperature	-20°C ~ 65°C	-20°C ~ 65°C
Contact Material - Plating	Nickel	Nickel
Contact Material	Copper Alloy	Copper Alloy
Panel Hole Size	0.375" (9.52mm)	0.375" (9.52mm)
Thread Size	3/8"-32	3/8"-32
Includes	3 pcs - 1 Connector, 1 Nut, 1 Washer	3 pcs - 1 Connector, 1 Nut, 1 Washer
RoHS Status	Not specified	ROHS3 Compliant
REACH Status	Not specified	REACH Unaffected

Engineering Selection Recommendations

The C12AX is the direct equivalent for the obsolete C12AZ. Selection of the C12AX is based on:

Product Status: The C12AZ is obsolete with no ongoing manufacturing. The C12AX maintains active product status with current inventory availability (817 pcs in stock).
Regulatory Compliance: The C12AX carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for new designs and production runs.
Electrical and Mechanical Equivalence: All critical parameters including connector type, mating diameter, contact configuration, electrical ratings, and mounting specifications are identical between the two parts.
Packaging: The C12AX is supplied in bulk packaging, suitable for production environments.

Frequently Asked Questions (FAQ)

Q: Can the C12AX be used as a direct replacement for the C12AZ in existing designs?

A: Yes. The C12AX is electrically and mechanically equivalent to the C12AZ across all specified parameters. Panel hole size, thread size, termination method, and electrical ratings are identical, enabling direct substitution in existing PCB layouts and mechanical assemblies.

Q: What is the primary reason for substituting the C12AZ?

A: The C12AZ is classified as obsolete and no longer manufactured. The C12AX provides an active, in-stock alternative from the same manufacturer and series with identical specifications.

Q: Are there any compliance differences between the C12AZ and C12AX?

A: The C12AX carries ROHS3 compliance and REACH unaffected certification, which are not specified for the obsolete C12AZ. These certifications ensure compliance with current environmental regulations for new production and design implementations.

Q: What are the key parameters that define substitution compatibility for this connector type?

A: Substitution compatibility is determined by: connector type and signal configuration (Phone Jack, Mono), mating diameter (6.35mm), contact count (2 Conductors, 3 Contacts), internal switch configuration (Single Switch), mounting type (Panel Mount), termination method (Solder Eyelet), electrical ratings (25VDC, 1 A), operating temperature range (-20°C ~ 65°C), and mechanical dimensions (panel hole size 0.375", thread size 3/8"-32).

Q: Is the C12AX available in different packaging options?

A: The C12AX is supplied in bulk packaging. The C12AZ was supplied with a soft carrying case. For production applications, the bulk packaging of the C12AX is standard.

Q: What is the current inventory status of the C12AX?

A: The C12AX has 817 pcs of new original stock currently available.

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