Equivalent & Substitute Parts for Molex 0022503155

Part Overview

The Molex 0022503155 is a 15-position rectangular receptacle connector with IDC termination, designed for 24-26 AWG discrete wire applications. This connector features a 0.100" (2.54mm) pitch, tin contact finish, and feed-through capability in a free-hanging in-line configuration. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring compatible interconnect solutions.

Key Parameters

Parameter	Value
Manufacturer Part Number	0022503155
Manufacturer	Molex
Series	KK254, 7720
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	15
Pitch	0.100" (2.54mm)
Number of Rows	1
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Gauge	24-26 AWG
Contact Finish	Tin
Contact Finish Thickness	100.0µin (2.54µm)
Features	Feed Through
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the Molex 0022503155 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Connector type: Receptacle with female socket contacts
Number of positions: 15
Pitch: 0.100" (2.54mm)
Number of rows: 1
Cable termination method: IDC
Contact finish: Tin
Features: Feed Through capability

Wire Gauge Compatibility: The original part accommodates 24-26 AWG wire. Substitute parts are grouped by specific wire gauge ratings (22 AWG, 24 AWG, 26 AWG, 28 AWG). Selection depends on the actual wire gauge used in the application. Parts rated for 22 AWG or 24 AWG are suitable for applications using 24-26 AWG wire, as these gauges fall within or overlap the specified range. Parts rated for 26 AWG or 28 AWG represent alternatives for applications with finer wire requirements.

Mounting and Fastening: TE Connectivity MTA-100 series substitutes feature right-angle mounting capability with locking ramp fastening, providing enhanced mechanical stability compared to the original free-hanging configuration.

Compliance Considerations: RoHS3 compliance status varies among substitutes. Active product status indicates ongoing availability and manufacturing support.

Parameter Comparison

Parameter	Molex 0022503155	TE 1-640620-5	TE 4-640620-5	TE 4-640621-5	TE 4-640622-5	TE 4-640623-5	TE 4-644540-5	TE 4-644564-5	TE 4-644565-5
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	15	15	15	15	15	15	15	15	15
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1	1	1	1	1	1	1	1
Cable Termination	IDC	IDC	IDC	IDC	IDC	IDC	IDC	IDC	IDC
Wire Gauge	24-26 AWG	22 AWG	22 AWG	24 AWG	26 AWG	28 AWG	22 AWG	26 AWG	28 AWG
Contact Finish	Tin	Tin-Lead	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Finish Thickness	100.0µin (2.54µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)	80.0µin (2.03µm)
Features	Feed Through	Feed Through	Feed Through	Feed Through	Feed Through	Feed Through	Feed Through	Feed Through	Feed Through
Product Status	Obsolete	Active	Active	Active	Active	Obsolete	Obsolete	Active	Obsolete
RoHS Status	ROHS3 Compliant	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Active Product Status with RoHS3 Compliance:

TE Connectivity 4-640621-5 is the primary substitute for applications using 24 AWG wire. This part maintains active product status, ROHS3 compliance, and tin contact finish matching the original specification. The MTA-100 series design provides enhanced mechanical stability through right-angle mounting and locking ramp fastening.

TE Connectivity 4-640620-5 serves applications requiring 22 AWG wire compatibility, offering active status and ROHS3 compliance with identical electrical and mechanical characteristics to the 4-640621-5.

TE Connectivity 4-644564-5 addresses 26 AWG wire applications with active product status and ROHS3 compliance.

For Legacy System Support:

TE Connectivity 1-640620-5 and 1-640621-5 provide tin-lead contact finish alternatives for systems where lead-based finishes are acceptable. These parts carry active product status but are RoHS non-compliant.

For Obsolete Product Replacement:

TE Connectivity 4-640623-5, 4-644540-5, and 4-644565-5 are obsolete alternatives. While currently in stock, these parts should not be selected for new designs. They are suitable only for legacy system maintenance where exact form-fit-function replacement is required.

Frequently Asked Questions (FAQ)

Q: Can I use a 22 AWG rated connector with 24-26 AWG wire?

A: Yes. The 22 AWG rating indicates the connector is designed for wire gauges up to 22 AWG. Using it with 24-26 AWG wire (finer gauges) is electrically and mechanically compatible, as the IDC termination mechanism accommodates smaller wire diameters.

Q: What is the difference between tin and tin-lead contact finishes?

A: Both finishes provide corrosion resistance and electrical conductivity. Tin-lead finishes (1-640620-5, 1-640621-5) are RoHS non-compliant but historically used in legacy systems. Tin finishes (4-640620-5, 4-640621-5, etc.) are ROHS3 compliant and suitable for current manufacturing standards.

Q: Why do some substitutes have right-angle mounting when the original is free-hanging?

A: TE Connectivity MTA-100 series connectors offer both free-hanging and right-angle mounting configurations. The right-angle capability provides design flexibility for space-constrained applications. Electrical and mechanical compatibility remains unchanged.

Q: Can I mix wire gauges in a single connector?

A: No. Each connector is rated for a specific wire gauge range. The IDC termination mechanism is calibrated for the specified gauge. Using mixed gauges within one connector may result in incomplete termination or contact damage.

Q: What does "Feed Through" mean?

A: Feed Through indicates the connector allows wire to pass through the termination point, enabling daisy-chain or multi-point connections without requiring separate termination blocks.

Q: Are obsolete parts suitable for new designs?

A: No. Obsolete parts (4-640623-5, 4-644540-5, 4-644565-5) should be used only for maintenance of existing systems. Active products (4-640620-5, 4-640621-5, 4-644564-5) are recommended for new designs to ensure long-term availability and manufacturing support.

Q: What is the significance of contact finish thickness?

A: Contact finish thickness affects durability and mating cycle life. The original part specifies 100.0µin (2.54µm), while substitutes provide 80.0µin (2.03µm). Both thicknesses meet industry standards for IDC connectors and provide equivalent performance in typical applications.

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