3240-12-00 Equivalent & Substitute Parts

Part Overview

The 3240-12-00 is a 12-position ribbon cable DIP header connector with IDC termination, manufactured by CNC Tech. This through-hole mounted connector features a 0.025" (0.64mm) cable pitch and 0.050" (1.27mm) board-side pitch across 2 rows with 0.050" (1.27mm) row spacing. The connector is marked as obsolete, making identification of functionally equivalent active alternatives essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Ribbon Cable, DIP Header
Number of Positions	12
Cable Pitch	0.025" (0.64mm)
Board-Side Pitch	0.050" (1.27mm)
Number of Rows	2
Row Spacing	0.050" (1.27mm)
Mounting Type	Through Hole
Cable Termination	IDC
Contact Finish	Gold
Features	Feed Through
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 3240-12-00 is determined by strict equivalence across the following critical parameters:

Connector Type: Ribbon Cable, DIP Header (identical form factor and function)
Position Count: 12 positions (electrical interface requirement)
Cable Pitch: 0.025" (0.64mm) (ribbon cable compatibility)
Board-Side Pitch: 0.050" (1.27mm) (PCB footprint compatibility)
Row Configuration: 2 rows with 0.050" (1.27mm) spacing (mechanical alignment)
Mounting Type: Through Hole (assembly method)
Cable Termination: IDC (connection technology)
Contact Finish: Gold (electrical performance and reliability)
Features: Feed Through (functional requirement)

The M50-3800642 manufactured by Harwin Inc. meets all these criteria, establishing it as a direct functional equivalent for the obsolete 3240-12-00.

Parameter Comparison

Parameter	3240-12-00 (CNC Tech)	M50-3800642 (Harwin Inc.)
Connector Type	Ribbon Cable, DIP Header	Ribbon Cable, DIP Header
Number of Positions	12	12
Cable Pitch	0.025" (0.64mm)	0.025" (0.64mm)
Board-Side Pitch	0.050" (1.27mm)	0.050" (1.27mm)
Number of Rows	2	2
Row Spacing	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Through Hole	Through Hole
Cable Termination	IDC	IDC
Contact Finish	Gold	Gold
Features	Feed Through	Feed Through
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Active

Engineering Selection Recommendations

The M50-3800642 is the appropriate substitute for the obsolete 3240-12-00. Both connectors are ROHS3 compliant and carry MSL rating 1 (Unlimited), ensuring equivalent environmental and regulatory performance. The M50-3800642 maintains active product status with Harwin Inc., providing ongoing availability and supply chain continuity. All critical electrical and mechanical parameters are identical, ensuring direct functional compatibility in existing PCB designs and cable assemblies.

Frequently Asked Questions (FAQ)

Q: Can the M50-3800642 be used as a direct replacement for the 3240-12-00 in existing designs?

A: Yes. The M50-3800642 matches all critical parameters including connector type, position count, pitch specifications, mounting method, and contact finish. No design modifications are required.

Q: Are there differences in wire gauge specifications?

A: The 3240-12-00 does not specify wire gauge in the provided data. The M50-3800642 is rated for 30 AWG. Wire gauge compatibility must be verified against the specific ribbon cable assembly used in the application.

Q: What is the packaging difference between these parts?

A: The 3240-12-00 packaging is not specified. The M50-3800642 is supplied in Tube packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the 3240-12-00 and M50-3800642 are ROHS3 compliant, meeting current environmental regulations.

Q: What is the MSL rating for these connectors?

A: Both connectors carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

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