AWP50-7540-T-R Equivalent & Substitute Parts

Part Overview

The AWP50-7540-T-R is a 50 position rectangular socket connector manufactured by Assmann WSW Components, designed for IDC (Insulation Displacement Connector) termination with ribbon cable applications. This connector features a tin contact finish, feed-through design, and polarizing key for secure mating. The part is currently listed as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity for applications requiring this connector specification.

Key Parameters

Parameter	Value
Connector Type	Socket
Contact Type	Female Socket
Number of Positions	50
Pitch	0.100" (2.54mm)
Number of Rows	2
Row Spacing	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)
Cable Termination	IDC
Wire Type	Ribbon Cable
Features	Feed Through, Polarizing Key
Contact Finish	Tin
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AWP50-7540-T-R is determined by strict alignment with the following critical parameters:

Connector Type & Contact Configuration: Socket with female socket contacts
Position Count & Pitch: 50 positions at 0.100" (2.54mm) pitch
Row Configuration: 2 rows with 0.100" (2.54mm) row spacing
Termination Method: IDC cable termination for ribbon cable
Mechanical Features: Feed through design with polarizing key
Environmental Rating: MSL 1 (Unlimited)

Two substitute parts meet these core electrical and mechanical requirements. The direct manufacturer substitute maintains identical specifications with active product status. The manufacturer-recommended alternative from CW Industries provides functional equivalence with minor contact finish variation (tin-lead vs. tin) and different connector terminology (receptacle vs. socket), both acceptable for IDC ribbon cable applications with identical pitch and position configurations.

Parameter Comparison

Parameter	AWP50-7540-T-R (Main)	AWP 50-7540-T (Direct)	CWR-227-50-0003 (MFR Recommended)
Manufacturer	Assmann WSW Components	Assmann WSW Components	CW Industries
Product Status	Obsolete	Active	Active
Connector Type	Socket	Socket	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	50	50	50
Pitch	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2
Row Spacing	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Cable Termination	IDC	IDC	IDC
Wire Type	Ribbon Cable	Ribbon Cable	Ribbon Cable
Features	Feed Through, Polarizing Key	Feed Through, Polarizing Key	Feed Through, Polarizing Key
Contact Finish	Tin	Tin	Tin-Lead
Color	Gray	Gray	Blue
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	Not specified	ROHS3 Compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: AWP 50-7540-T

The AWP 50-7540-T is the direct equivalent from Assmann WSW Components. This part maintains identical electrical and mechanical specifications to the obsolete AWP50-7540-T-R while offering active product status and ROHS3 compliance. The only difference is packaging format (tray vs. unspecified). This substitute is the preferred selection for direct replacement in new designs and production continuity.

Alternative Substitute: CWR-227-50-0003

The CWR-227-50-0003 from CW Industries provides functional equivalence with all critical parameters aligned: 50 positions, 0.100" pitch, 2-row configuration, IDC termination, and ribbon cable compatibility. The contact finish differs (tin-lead vs. tin) and RoHS compliance status is non-compliant. This alternative is suitable for applications where CW Industries connector ecosystem integration is preferred or where tin-lead contact finish is acceptable. Connector terminology variation (receptacle vs. socket) does not affect functional compatibility in IDC ribbon cable applications.

Frequently Asked Questions (FAQ)

Q: Can AWP 50-7540-T directly replace AWP50-7540-T-R?

A: Yes. Both parts share identical electrical and mechanical specifications: 50 positions, 0.100" pitch, 2-row configuration, IDC termination, tin contact finish, and feed-through design with polarizing key. The primary difference is product status (active vs. obsolete) and packaging format.

Q: What is the difference between socket and receptacle terminology in these connectors?

A: In IDC ribbon cable connector applications, socket and receptacle terminology both refer to the mating half that accepts the cable termination. Both AWP50-7540-T-R and CWR-227-50-0003 are designed for IDC ribbon cable termination and are mechanically and electrically compatible.

Q: Is the tin-lead contact finish of CWR-227-50-0003 compatible with tin-finished mating connectors?

A: Yes. Both tin and tin-lead finishes are compatible in IDC ribbon cable applications. The contact finish difference does not affect mechanical mating or electrical performance in this connector category.

Q: Does RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory and procurement consideration rather than a functional compatibility factor. AWP 50-7540-T is ROHS3 compliant, while CWR-227-50-0003 is non-compliant. Selection depends on application regulatory requirements and customer specifications.

Q: Are there packaging differences between these substitutes?

A: AWP50-7540-T-R packaging is unspecified. AWP 50-7540-T is supplied in tray packaging. CWR-227-50-0003 packaging is unspecified. Packaging format does not affect connector functionality but may impact procurement and handling procedures.

Q: Can these connectors be used interchangeably in existing designs?

A: Yes, all three parts are mechanically and electrically interchangeable for IDC ribbon cable applications. Mating with standard 0.100" pitch 50-position connectors is identical across all three parts.

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