TE Connectivity 644611-5 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 644611-5 is a rectangular connector header, through-hole mounted, with 5 positions at 0.156" (3.96mm) pitch. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for new designs and ongoing production requirements. The connector features shrouded single-wall construction with friction lock fastening, suitable for board-to-cable/wire applications in general-purpose environments.

Substiute Parts

644611-5

TE Connectivity AMP ConnectorsIn Stock: 1213644611-5 Datasheet

Current PartRFQ

3-644611-5

TE Connectivity AMP ConnectorsIn Stock: 9233-644611-5 Datasheet

DirectRFQ

0026604050

MolexIn Stock: 311590026604050 Datasheet

SimilarRFQ

0026624050

MolexIn Stock: 7150026624050 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 644611-5 is determined by the following critical parameters:

Primary Matching Criteria:

• Connector type: Header
• Contact type: Male Pin
• Pitch - mating: 0.156" (3.96mm)
• Number of positions: 5
• Number of rows: 1
• Mounting type: Through Hole
• Termination: Solder
• Shrouding: Shrouded - 1 Wall
• Fastening type: Friction Lock
• Contact shape: Square
• Material flammability rating: UL94 V-0

Secondary Compatibility Factors:

• Operating temperature range: -55°C ~ 105°C
• Voltage rating: 600VAC
• Moisture sensitivity level: 1 (Unlimited)
• RoHS compliance status

The substitute parts identified maintain all primary matching criteria. Variations in contact finish composition (Tin versus Tin-Lead), contact finish thickness, insulation material composition, and insulation height represent acceptable engineering tolerances within the rectangular connector category and do not preclude functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent - TE Connectivity 3-644611-5:

The 3-644611-5 is the direct equivalent to the obsolete 644611-5. Both components share identical mechanical and electrical specifications within the MTA-156 series. The primary distinction is product status: 3-644611-5 is active with 851 units in stock, whereas 644611-5 is obsolete. The 3-644611-5 features Tin contact finish compared to Tin-Lead in the original part. Both maintain ROHS3 compliance and UL94 V-0 flammability rating. This part is the preferred selection for direct replacement in new designs and production continuity.

Cross-Manufacturer Alternatives - Molex 0026604050 and 0026624050:

The Molex KK396 series connectors (0026604050 and 0026624050) provide functional substitution with the following considerations:

The 0026604050 maintains all critical mating parameters and is fully loaded with 5 positions. This part is active with 31,054 units in stock, providing superior availability. Contact post length is 0.140" (3.56mm) versus 0.125" (3.18mm) in the TE parts, and insulation height is 0.446" (11.33mm) versus 0.545" (13.84mm). These dimensional variations are within acceptable tolerances for board-to-cable/wire applications. Contact finish thickness is 60.0µin (1.52µm) compared to 150.0µin (3.81µm) in TE parts. Both maintain UL94 V-0 rating and ROHS3 compliance.

The 0026624050 is identical to 0026604050 with the exception of loaded positions: only 4 of 5 positions are loaded. This part is not suitable for applications requiring all 5 positions to be populated.

Compliance Summary:

All substitute parts maintain UL94 V-0 material flammability rating and Moisture Sensitivity Level 1 (Unlimited). RoHS compliance is confirmed for all active parts. REACH status is unaffected for TE and Molex parts, with the exception of 3-644611-5 which shows vendor undefined status.

Frequently Asked Questions (FAQ)

Q: Can the 3-644611-5 be used as a direct replacement for the obsolete 644611-5?

A: Yes. The 3-644611-5 is the direct equivalent with identical connector type, pitch, position count, mounting method, and termination. The primary difference is product status (active versus obsolete) and contact finish composition (Tin versus Tin-Lead). Both maintain equivalent electrical and mechanical performance for general-purpose applications.

Q: What are the key differences between TE Connectivity and Molex substitute options?

A: The TE Connectivity 3-644611-5 maintains the same series designation (MTA-156) and identical dimensional specifications as the original 644611-5. The Molex 0026604050 and 0026624050 belong to the KK396 series and feature slightly different contact post length (0.140" versus 0.125") and insulation height (0.446" versus 0.545"). All parts share the same 0.156" (3.96mm) pitch, 5-position configuration, and friction lock fastening. The Molex parts offer significantly higher inventory availability.

Q: Why is the Molex 0026624050 not recommended as a substitute?

A: The 0026624050 has only 4 of 5 positions loaded, whereas the original 644611-5 and all other substitutes have all 5 positions loaded. This part is suitable only for applications requiring 4-position connectors and cannot serve as a direct substitute for 5-position requirements.

Q: Are there any compliance or certification concerns with cross-manufacturer substitution?

A: All substitute parts maintain UL94 V-0 flammability rating and Moisture Sensitivity Level 1 (Unlimited). RoHS compliance is confirmed for all active parts. The 3-644611-5 shows vendor undefined REACH status, whereas TE Connectivity 644611-5 and Molex parts show REACH Unaffected status. This does not preclude substitution but should be noted for regulatory documentation purposes.

Q: What dimensional variations exist between the TE and Molex substitutes?

A: Contact post length differs: TE parts measure 0.125" (3.18mm) while Molex parts measure 0.140" (3.56mm). Insulation height differs: TE parts measure 0.545" (13.84mm) while Molex parts measure 0.446" (11.33mm). Overall contact length differs: TE parts measure 0.700" (17.78mm) while Molex parts measure 0.720" (18.29mm). These variations are within acceptable tolerances for board-to-cable/wire connector applications and do not affect mating compatibility at the 0.156" (3.96mm) pitch.

Q: What is the contact finish thickness difference between TE and Molex parts?

A: TE Connectivity parts feature 150.0µin (3.81µm) contact finish thickness on both mating and post surfaces. Molex parts feature 60.0µin (1.52µm) contact finish thickness. Both finishes are Tin or Tin-Lead compositions and provide equivalent electrical conductivity and corrosion resistance for general-purpose applications.

Q: Which substitute part offers the best inventory availability?

A: The Molex 0026604050 provides the highest inventory availability with 31,054 units in stock. The TE Connectivity 3-644611-5 has 851 units available. The Molex 0026624050 has 643 units available but is not recommended due to partial position loading.