TE Connectivity AMP Connectors 641211-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 641211-2 is a rectangular connector header designed for through-hole mounting applications. This connector is a vertical 2-position header with 0.100" (2.54mm) pitch spacing, part of the MTA-100 series. The connector features male pin contacts with gold-plated mating surfaces and tin-lead plated posts for solder termination.

The 641211-2 is classified as obsolete, necessitating identification of equivalent substitute components for ongoing design support and procurement. The availability of direct substitutes ensures continuity for applications requiring this connector type while accommodating modern compliance requirements.

Substiute Parts

641211-2

TE Connectivity AMP ConnectorsIn Stock: 971641211-2 Datasheet

Current PartRFQ

3-641211-2

TE Connectivity AMP ConnectorsIn Stock: 9723-641211-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 641211-2 is determined by strict equivalence across the following critical parameters:

Electrical Compatibility Parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (2)
• Pitch spacing (0.100" / 2.54mm)
• Voltage rating (250VAC)
• Operating temperature range (-55°C to 105°C)

Mechanical Compatibility Parameters:

• Mounting type (Through Hole)
• Termination method (Solder)
• Contact shape (Square)
• Insulation material (Thermoplastic)
• Contact material (Copper Alloy)

Certification Parameters:

• Material flammability rating (UL94 V-0)
• Moisture sensitivity level (MSL 1)

The substitute part 3-641211-2 maintains full equivalence across all electrical and mechanical parameters. Differences in RoHS compliance status and contact finish post material (Tin versus Tin-Lead) do not affect functional interchangeability for the specified application requirements.

Parameter Comparison

Engineering Selection Recommendations

The 3-641211-2 serves as a direct functional equivalent to the 641211-2 across all electrical and mechanical parameters. Both connectors are classified as unavailable through standard distribution channels, with the 641211-2 marked obsolete and the 3-641211-2 discontinued at DiGi Electronics.

The primary distinction between these parts is regulatory compliance status. The 3-641211-2 is RoHS compliant and REACH unaffected, whereas the 641211-2 is RoHS non-compliant with undefined REACH status. For applications subject to RoHS or REACH requirements, the 3-641211-2 is the appropriate selection.

The contact finish post material differs between the two parts: the 641211-2 uses tin-lead plating while the 3-641211-2 uses tin plating. Both finishes provide equivalent solder joint reliability and electrical performance at the specified operating temperature range and voltage rating. This difference does not affect functional interchangeability.

For new designs or procurement requiring MTA-100 series 2-position 0.100" pitch headers, alternative current-production connectors from the same series should be evaluated if availability of either substitute part cannot be secured.

Frequently Asked Questions (FAQ)

Q: Are the 641211-2 and 3-641211-2 electrically interchangeable?

A: Yes. Both connectors maintain identical electrical specifications including 250VAC voltage rating, -55°C to 105°C operating temperature range, and equivalent current-carrying capacity based on wire gauge. The gold-plated mating contacts and copper alloy contact material are identical across both parts.

Q: What is the difference in contact finish between these two parts?

A: The 641211-2 features tin-lead plating on the post (solder tail), while the 3-641211-2 uses tin plating. Both finishes provide equivalent solder joint formation and electrical performance. The tin finish on the 3-641211-2 reflects its RoHS compliance status.

Q: Can I use the 3-641211-2 as a direct replacement for the 641211-2 in existing designs?

A: Yes. The 3-641211-2 is mechanically and electrically compatible with the 641211-2. All contact dimensions, pitch spacing, mounting configuration, and termination method are identical. The connector will function identically in the same PCB footprint and mating interface.

Q: Why are both parts listed as unavailable?

A: The 641211-2 is classified as obsolete, indicating end-of-life status. The 3-641211-2 is discontinued at DiGi Electronics, a major distribution channel. Both parts are legacy components from the MTA-100 series. Current-production alternatives should be evaluated for new procurement requirements.

Q: Does the RoHS compliance difference affect performance?

A: No. RoHS compliance is a regulatory and material composition requirement, not a performance specification. Both parts meet identical electrical and mechanical performance criteria. The RoHS status is relevant only for applications subject to RoHS regulations or customer requirements.

Q: Are the mechanical dimensions identical between these connectors?

A: Yes. Both connectors share identical mechanical specifications: 2-position, 1-row configuration with 0.100" (2.54mm) pitch spacing, 0.295" (7.49mm) mating contact length, 0.140" (3.56mm) post length, and 0.100" (2.54mm) insulation height. The connectors are mechanically interchangeable.

Q: What is the moisture sensitivity level for these connectors?

A: Both the 641211-2 and 3-641211-2 are rated MSL 1 (Unlimited), indicating no moisture sensitivity. These connectors do not require special moisture control during storage, handling, or assembly.

Q: Can these connectors be used in high-temperature applications?

A: Yes. Both connectors are rated for continuous operation from -55°C to 105°C. The thermoplastic insulation material and copper alloy contacts maintain their electrical and mechanical properties throughout this temperature range.