TE Connectivity AMP Connectors 643960-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 643960-1 is an active rectangular connector header designed for through-hole mounting applications. This shrouded, single-wall header connector operates in the MTA-156 series and accommodates 3 positions at 0.156" (3.96mm) pitch. The connector features male pin contacts with solder termination and friction lock fastening, suitable for general purpose and industrial applications requiring board-to-cable or board-to-wire connections.

Substitute parts are identified to address inventory availability, extended lead times, or specific application requirements while maintaining electrical and mechanical compatibility within the MTA-156 connector family and equivalent pitch standards.

Substiute Parts

643960-1

TE Connectivity AMP ConnectorsIn Stock: 1187643960-1 Datasheet

Current PartRFQ

640445-3

TE Connectivity AMP ConnectorsIn Stock: 2756640445-3 Datasheet

SimilarRFQ

0026482035

MolexIn Stock: 15520026482035 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector headers is determined by alignment of critical electrical and mechanical parameters. The primary substitution criteria for the 643960-1 include:

Critical Matching Parameters:

• Pitch - Mating: 0.156" (3.96mm)
• Number of Positions: 3
• Number of Rows: 1
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Fastening Type: Friction Lock
• Shrouding: Shrouded - 1 Wall
• Operating Temperature Range: -55°C ~ 105°C
• Voltage Rating: 600VAC
• Material Flammability Rating: UL94 V-0

The identified substitute parts 640445-3 and 0026482035 maintain these core electrical and mechanical specifications, enabling direct functional replacement in applications designed for the 643960-1. Variations in contact dimensions, contact finish materials, and insulation material composition do not preclude substitution when the mating interface and electrical performance remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity AMP Connectors 640445-3

The 640445-3 is the primary equivalent substitute for the 643960-1. Both connectors are manufactured by TE Connectivity within the MTA-156 series and share identical electrical and mechanical specifications across all critical parameters. The 640445-3 maintains the same pitch, position count, contact geometry, operating temperature range, voltage rating, and flammability certification. Both parts are RoHS Compliant with MSL 1 rating. The 640445-3 is currently active in production with higher inventory availability (2649 pcs) compared to the 643960-1 (1121 pcs), making it suitable for direct substitution in applications where the 643960-1 is specified.

Molex 0026482035

The 0026482035 is an alternative substitute from Molex within the KK396 and 41671 series. This connector maintains the critical mating pitch of 0.156" (3.96mm), 3-position single-row configuration, male pin contacts, through-hole solder termination, and friction lock fastening. The 0026482035 is UL94 V-0 rated and ROHS3 Compliant with MSL 1 rating. Dimensional variations exist in contact length and insulation height, and the contact finish differs (gold mating surface versus tin). The operating temperature range and voltage rating are not specified for this part. The 0026482035 is suitable for applications where cross-manufacturer compatibility is acceptable and dimensional tolerance permits the increased contact and insulation heights.

Frequently Asked Questions (FAQ)

Q: Can the 640445-3 be used as a direct replacement for the 643960-1?

A: Yes. The 640445-3 and 643960-1 are both TE Connectivity MTA-156 series connectors with identical pitch (0.156"), position count (3), contact type (male pin), mounting method (through-hole solder), and operating specifications (600VAC, -55°C to 105°C, UL94 V-0). Direct substitution is supported.

Q: What are the key differences between the 643960-1 and the Molex 0026482035?

A: Both connectors share the same 0.156" (3.96mm) pitch, 3-position configuration, and core electrical ratings. The 0026482035 differs in contact dimensions (longer mating and post lengths), insulation height (0.500" versus 0.425"), contact finish material (gold versus tin), base material (brass versus copper alloy), and insulation material (polyester versus thermoplastic glass-filled). Operating temperature and voltage specifications are not provided for the 0026482035.

Q: Are there any compatibility concerns when substituting the 643960-1 with the 0026482035?

A: The increased contact length and insulation height of the 0026482035 may affect board layout and mating depth. Applications with tight vertical clearance constraints should evaluate the dimensional differences. The gold contact finish of the 0026482035 provides enhanced corrosion resistance compared to the tin finish of the 643960-1, which may be beneficial in certain environmental conditions.

Q: What is the significance of the "Number of Positions Loaded" specification?

A: The 643960-1 specifies 2 positions loaded, while both substitute parts (640445-3 and 0026482035) specify all positions loaded. This indicates the number of contact positions that are pre-installed in the connector housing. Applications requiring only 2 active positions can use any of these parts; unused positions remain empty.

Q: Are all three connectors RoHS compliant?

A: Yes. The 643960-1 and 640445-3 are RoHS Compliant. The 0026482035 is ROHS3 Compliant. All three parts meet RoHS requirements for hazardous substance restrictions.

Q: What is the Moisture Sensitivity Level (MSL) for these connectors?

A: All three connectors carry MSL 1 (Unlimited), indicating unlimited shelf life without moisture control requirements during storage and handling.