Switchcraft L113B Barrel Connector - Equivalent & Substitute Parts

Part Overview

The Switchcraft L113B is a 6.35mm (0.250", 1/4") stereo headphone jack connector designed for panel mount applications. This connector features a 3-conductor TRS (Tip-Ring-Sleeve) configuration with solder eyelet termination, commonly used in audio equipment, musical instruments, and professional audio systems. The L113B belongs to the Hi-D JAX® series and is currently in active production with 1,097 units available in stock.

Identifying equivalent and substitute parts is necessary when the primary part is unavailable, when supply chain requirements demand alternative sourcing, or when design flexibility permits component standardization across product lines.

Key Parameters

Parameter	L113B Specification
Connector Type	Phone Jack (Stereo)
Gender	Female
Signal Configuration	Stereo (3 Conductor, TRS)
Mating Diameter	6.35mm (0.250", 1/4") - Headphone
Number of Contacts	3 Conductors, 4 Contacts
Mounting Type	Panel Mount
Termination Method	Solder Eyelet(s)
Internal Switch(s)	Single Switch
Shielding	Unshielded
Contact Material - Plating	Gold
Body Material	Steel
Operating Temperature Range	-20°C ~ 65°C

Substitute Part Grouping Explanation

Substitution eligibility for the Switchcraft L113B is determined by strict equivalence across the following critical parameters:

Connector Type & Gender: Must be a female phone jack for stereo applications
Signal Configuration: Must support 3-conductor TRS (Tip-Ring-Sleeve) configuration with 4 total contacts
Mating Diameter: Must be 6.35mm (0.250", 1/4") headphone standard
Mounting Configuration: Must be panel mount with solder eyelet termination
Internal Switching: Must include single switch functionality
Electrical & Mechanical Compatibility: Contact material, body construction, and operating temperature range must align with the original specification

The Switchcraft MT333B meets all substitution criteria as a functionally equivalent alternative within the same manufacturer's product portfolio.

Parameter Comparison

Parameter	L113B (Main Part)	MT333B (Substitute)	Compatibility
Manufacturer	Switchcraft Inc.	Switchcraft Inc.	Same
Category	Barrel Connectors	Barrel Connectors	Same
Connector Type	Phone Jack (Stereo)	Phone Jack (Stereo)	Equivalent
Gender	Female	Female	Equivalent
Signal Configuration	Stereo (3 Conductor, TRS)	Stereo (3 Conductor, TRS)	Equivalent
Mating Diameter	6.35mm (0.250", 1/4")	6.35mm (0.250", 1/4")	Equivalent
Number of Contacts	3 Conductors, 4 Contacts	3 Conductors, 4 Contacts	Equivalent
Mounting Type	Panel Mount	Panel Mount	Equivalent
Termination	Solder Eyelet(s)	Solder Eyelet(s)	Equivalent
Internal Switch(s)	Single Switch	Single Switch	Equivalent
Shielding	Unshielded	Unshielded	Equivalent
Contact Material - Plating	Gold	Gold	Equivalent
Contact Material	Palladium (Pd)	Palladium (Pd)	Equivalent
Body Material	Steel	Steel	Equivalent
Body Color	Silver	Silver	Equivalent
Operating Temperature	-20°C ~ 65°C	-20°C ~ 65°C	Equivalent
Product Status	Active	Active	Both Active
RoHS Status	RoHS non-compliant	RoHS non-compliant	Same Compliance Status
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Same
Series	Hi-D JAX®	MT-JAX®	Different Series
Inventory	1,097 Pcs	814 Pcs	Both In Stock

Engineering Selection Recommendations

Both the L113B and MT333B are active products from Switchcraft Inc. with identical electrical and mechanical specifications for 6.35mm stereo headphone jack applications. The MT333B serves as a direct functional equivalent with equivalent compliance status (RoHS non-compliant, REACH Unaffected).

Selection between these parts should be based on:

Availability: The L113B has higher inventory (1,097 units) compared to MT333B (814 units)
Series Preference: The L113B belongs to the Hi-D JAX® series, while MT333B belongs to the MT-JAX® series; both are Switchcraft product lines
Supply Chain Requirements: Either part satisfies identical design requirements for panel-mount stereo audio jack applications

Both parts are suitable for direct substitution in applications requiring 6.35mm TRS stereo connectors with panel mount configuration and solder eyelet termination.

Frequently Asked Questions (FAQ)

Q: Can the MT333B replace the L113B in existing designs?

A: Yes. The MT333B is electrically and mechanically equivalent to the L113B. Both connectors feature identical 6.35mm TRS stereo configuration, panel mount design, solder eyelet termination, and operating specifications. No circuit or mechanical modifications are required.

Q: Are there differences in contact reliability between these parts?

A: No. Both parts use identical contact materials (Palladium plating with Gold finish) and body construction (Steel). Operating temperature ranges are identical (-20°C ~ 65°C), and both have MSL rating of 1 (Unlimited).

Q: What is the difference between the Hi-D JAX® and MT-JAX® series?

A: Both are Switchcraft product series for barrel connectors. The L113B belongs to the Hi-D JAX® series and the MT333B belongs to the MT-JAX® series. For this specific 6.35mm stereo jack application, both series provide equivalent performance and specifications.

Q: Do these connectors have any RoHS compliance considerations?

A: Both the L113B and MT333B are RoHS non-compliant. If RoHS compliance is required for your application, alternative components must be sourced.

Q: Are there any differences in solder eyelet design between these parts?

A: No. Both connectors use identical solder eyelet termination methods suitable for standard PCB assembly processes.

Q: Which part should I select if both are available?

A: Selection can be based on inventory availability, preferred series designation, or supply chain logistics. Both parts are functionally identical for 6.35mm stereo headphone jack applications with panel mount configuration.

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