AWP26-8540-T-R Equivalent & Substitute Parts

Part Overview

The AWP26-8540-T-R is a 26-position rectangular socket connector manufactured by Assmann WSW Components, designed for IDC (Insulation Displacement Connector) termination with ribbon cable applications. This connector features a feed-through design with tin contact finish and is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is essential for system maintenance, repair, and new design implementations where this connector type is required.

Key Parameters

Parameter	Value
Connector Type	Socket
Contact Type	Female Socket
Number of Positions	26
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
Contact Finish	Tin
Color	Gray
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution for the AWP26-8540-T-R is determined by strict equivalence across the following critical parameters:

Connector Type & Contact Configuration: Socket with female socket contacts
Electrical Interface: 26-position, 2-row configuration with 0.100" (2.54mm) pitch and row spacing
Termination Method: IDC termination for ribbon cable
Mechanical Design: Free hanging in-line mounting with feed-through capability
Environmental Compliance: MSL 1 rating and REACH unaffected status

Two substitute parts meet these criteria:

AWP 26-8540-T (Direct Assmann WSW equivalent): Identical electrical and mechanical specifications with active product status and RoHS3 compliance
CWR-220-26-0003 (CW Industries alternative): Functionally equivalent across all critical parameters with active product status, though featuring tin-lead contact finish instead of tin

Parameter Comparison

Parameter	AWP26-8540-T-R (Main)	AWP 26-8540-T (Direct Substitute)	CWR-220-26-0003 (Alternative)
Manufacturer	Assmann WSW Components	Assmann WSW Components	CW Industries
Connector Type	Socket	Socket	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	26	26	26
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	Feed Through	Feed Through
Contact Finish	Tin	Tin	Tin-Lead
Color	Gray	Gray	Blue
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	RoHS3 Compliant	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Primary Substitute: AWP 26-8540-T

The AWP 26-8540-T is the recommended direct substitute for the obsolete AWP26-8540-T-R. This part maintains identical electrical and mechanical specifications while offering active product status and RoHS3 compliance. The transition from the obsolete variant to the active production part involves only packaging format change (from unspecified to tray packaging), with no functional impact on connector performance or compatibility.

Alternative Substitute: CWR-220-26-0003

The CWR-220-26-0003 from CW Industries provides functional equivalence across all critical electrical and mechanical parameters. This alternative is suitable for applications where cross-manufacturer sourcing is acceptable. The primary differences are contact finish (tin-lead versus tin), connector color (blue versus gray), and RoHS compliance status (non-compliant versus compliant). The tin-lead finish may present considerations for applications with specific environmental or regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can AWP 26-8540-T directly replace AWP26-8540-T-R without modification?

A: Yes. The AWP 26-8540-T is electrically and mechanically identical to the obsolete AWP26-8540-T-R. The only difference is packaging format (tray versus unspecified), which does not affect connector functionality or compatibility with existing ribbon cable assemblies.

Q: What are the key differences between the two substitute options?

A: Both substitutes maintain the same 26-position, 2-row IDC socket configuration. The primary differences are: (1) AWP 26-8540-T uses tin contact finish and is RoHS3 compliant; (2) CWR-220-26-0003 uses tin-lead contact finish and is RoHS non-compliant. Contact finish selection depends on application requirements and environmental specifications.

Q: Are there compatibility concerns with the CWR-220-26-0003 alternative?

A: The CWR-220-26-0003 maintains full electrical and mechanical compatibility with the original part across all critical parameters: 26-position configuration, 0.100" pitch, 2-row layout, IDC termination, and feed-through design. Connector color and contact finish differ but do not affect functional compatibility.

Q: Which substitute should be selected for new designs?

A: For new designs, the AWP 26-8540-T is the preferred choice due to active product status and RoHS3 compliance. The CWR-220-26-0003 is suitable as an alternative when cross-manufacturer sourcing or specific tin-lead contact finish requirements are necessary.

Q: How does packaging format affect part selection?

A: Packaging format (tray versus other formats) affects handling, storage, and supply chain logistics but does not impact connector electrical or mechanical performance. Selection should be based on manufacturing process requirements and inventory management practices.

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