Switchcraft C11 6.35mm Mono Phone Jack Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft C11 is a 6.35mm (0.250", 1/4") mono phone jack connector designed for panel mount applications with solder eyelet termination. This connector is classified as obsolete, making identification of suitable substitute parts essential for ongoing production, maintenance, and repair applications. The C11 features a two-conductor, two-contact configuration with nickel-plated copper alloy contacts and includes mounting hardware with thread lock capability.

Substiute Parts

C11
Switchcraft Inc.In Stock: 1065C11 Datasheet
C11
Current Part
C11X
Switchcraft Inc.In Stock: 2137C11X Datasheet
C11X
Direct

Key Parameters

Parameter Value
Connector Type Phone Jack
Gender Female
Signal Configuration Mono
Mating Diameter 6.35mm (0.250", 1/4")
Number of Contacts 2 Conductors, 2 Contacts
Mounting Type Panel Mount
Termination Method Solder Eyelet(s)
Voltage Rating 25VDC
Current Rating 1 A
Operating Temperature Range -20°C ~ 65°C
Panel Hole Size 0.375" (9.52mm)
Thread Size 3/8"-32
RoHS Compliance ROHS3 Compliant

Substitute Part Grouping Explanation

The Switchcraft C11X qualifies as a direct substitute for the C11 based on identical electrical and mechanical parameters. Substitution is determined by the following critical parameters:

  • Connector type, gender, and signal configuration (Phone Jack, Female, Mono)
  • Mating diameter specification (6.35mm / 0.250" / 1/4")
  • Contact count and configuration (2 Conductors, 2 Contacts)
  • Mounting methodology (Panel Mount)
  • Termination approach (Solder Eyelet)
  • Electrical ratings (25VDC, 1 A)
  • Operating temperature range (-20°C ~ 65°C)
  • Physical mounting dimensions (Panel Hole Size: 0.375", Thread Size: 3/8"-32)
  • Regulatory compliance (ROHS3 Compliant)

The C11X maintains identical specifications across all these parameters, establishing it as a functionally equivalent replacement.

Parameter Comparison

Parameter C11 (Main Part) C11X (Substitute) Match Status
Connector Type Phone Jack Phone Jack Identical
Gender Female Female Identical
Signal Lines Mono Mono Identical
Mating Diameter 6.35mm (0.250", 1/4") 6.35mm (0.250", 1/4") Identical
Number of Positions/Contacts 2 Conductors, 2 Contacts 2 Conductors, 2 Contacts Identical
Mounting Type Panel Mount Panel Mount Identical
Termination Solder Eyelet(s) Solder Eyelet(s) Identical
Voltage - Rated 25VDC 25VDC Identical
Current Rating 1 A 1 A Identical
Operating Temperature -20°C ~ 65°C -20°C ~ 65°C Identical
Panel Hole Size 0.375" (9.52mm) 0.375" (9.52mm) Identical
Thread Size 3/8"-32 3/8"-32 Identical
Contact Material - Plating Nickel Nickel Identical
Body Material Copper Alloy Copper Alloy Identical
Body Color Silver Silver Identical
RoHS Status ROHS3 Compliant ROHS3 Compliant Identical
ECCN EAR99 EAR99 Identical
HTSUS 8536.69.4030 8536.69.4030 Identical
Product Status Obsolete Active Substitute is Active

Engineering Selection Recommendations

The Switchcraft C11X is the appropriate substitute for the obsolete C11 connector. Both parts are ROHS3 compliant and carry identical EAR99 export classification and HTSUS codes. The C11X maintains active product status, ensuring continued availability and supply chain reliability. All electrical specifications, mechanical dimensions, and material compositions are identical between the two parts, supporting direct substitution in existing designs and applications. The C11X is available in bulk packaging with higher inventory levels (2095 pcs) compared to the C11 (967 pcs).

Frequently Asked Questions (FAQ)

Q: Can the C11X be used as a direct replacement for the C11?

A: Yes. The C11X is electrically and mechanically identical to the C11 across all specified parameters, including connector type, mating diameter, contact configuration, electrical ratings, operating temperature range, and physical mounting dimensions.

Q: What is the primary difference between the C11 and C11X?

A: The C11 is classified as obsolete, while the C11X maintains active product status. The C11X is supplied in bulk packaging, whereas the C11 packaging specification is not defined. Both parts are manufactured by Switchcraft Inc. and belong to the LITTEL-JAX® series.

Q: Are there any compliance or certification differences?

A: No. Both the C11 and C11X are ROHS3 compliant, carry EAR99 export classification, and share identical HTSUS codes (8536.69.4030). Moisture sensitivity level is not applicable to either part.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: connector type (Phone Jack), gender (Female), signal configuration (Mono), mating diameter (6.35mm), contact count (2 Conductors, 2 Contacts), mounting type (Panel Mount), termination method (Solder Eyelet), electrical ratings (25VDC, 1 A), operating temperature range (-20°C ~ 65°C), and physical mounting specifications (Panel Hole Size: 0.375", Thread Size: 3/8"-32).

Q: Does the C11X include the same accessories as the C11?

A: Yes. Both parts include 3 pcs: 1 Connector, 1 Nut, and 1 Washer. Both feature mounting hardware with thread lock capability.

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