TE Connectivity AMP Connectors 1744071-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1744071-3 is an active rectangular connector header designed for through-hole mounting applications. This shrouded, single-wall header connector accommodates 3 positions at 0.156" (3.96mm) pitch and features male pin contacts with gold-plated mating surfaces. The connector is specified for general purpose and industrial applications with an operating temperature range of -55°C to 105°C and a voltage rating of 600VAC.

Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when design requirements permit equivalent connector configurations that maintain functional compatibility within the specified electrical and mechanical parameters.

Substiute Parts

1744071-3

TE Connectivity AMP ConnectorsIn Stock: 11961744071-3 Datasheet

Current PartRFQ

0417910850

MolexIn Stock: 67030417910850 Datasheet

SimilarRFQ

1718130003

MolexIn Stock: 137351718130003 Datasheet

SimilarRFQ

1718133003

MolexIn Stock: 16651718133003 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of rectangular connector headers is determined by alignment of critical electrical and mechanical parameters. The following parameters establish substitution validity for the 1744071-3:

Primary Matching Criteria:

• 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

Secondary Compatibility Factors:

• Contact Shape (Circular vs. Square) affects mating interface geometry
• Contact Finish - Mating (Gold vs. Tin) affects electrical performance and corrosion resistance
• Insulation Material composition affects thermal and chemical resistance
• Material Flammability Rating (UL94 V-0 vs. V-2) affects safety compliance
• Contact Length dimensions affect insertion depth and mechanical fit
• Insulation Height affects board-level clearance

All identified substitute parts maintain the core pitch, position count, and mounting configuration. Variations in contact geometry, finish specifications, and insulation materials are documented to enable informed selection based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and comply with RoHS and REACH regulations. Selection among the 1744071-3 and its substitutes is based on the following engineering considerations:

TE Connectivity 1744071-3:

• Circular contact geometry with gold mating finish (15.0µin thickness)
• UL94 V-0 flammability rating
• 600VAC voltage rating specification
• Polyamide (PA) nylon insulation material
• Insulation height of 0.545" (13.84mm)
• 2 positions loaded configuration

Molex 0417910850 (KK396 Series):

• Square contact geometry with gold mating finish (30.0µin thickness)
• UL94 V-0 flammability rating
• Polyester glass-filled insulation material
• Insulation height of 0.446" (11.33mm)
• All positions loaded configuration
• Bulk packaging

Molex 1718130003 (KK396 Series):

• Square contact geometry with tin mating finish (60.0µin thickness)
• UL94 V-2 flammability rating
• Polyamide (PA) nylon insulation material
• Insulation height of 0.446" (11.33mm)
• All positions loaded configuration
• Bulk packaging

Molex 1718133003 (KK396 Series):

• Square contact geometry with tin mating finish (60.0µin thickness)
• UL94 V-2 flammability rating
• Polyamide (PA) nylon insulation material
• Insulation height of 0.446" (11.33mm)
• All positions loaded configuration
• Cut Tape (CT) packaging with Pick and Place feature

Applications requiring UL94 V-0 compliance should prioritize the 1744071-3 or 0417910850. Applications with standard flammability requirements may utilize 1718130003 or 1718133003. Contact finish selection (gold vs. tin) affects corrosion resistance and electrical performance in specific environmental conditions. Insulation height variations require verification against PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0417910850 directly replace the TE Connectivity 1744071-3?

A: The 0417910850 maintains pitch, position count, mounting type, and fastening mechanism compatibility. However, the square contact geometry differs from the circular contacts of the 1744071-3. Both feature gold mating finishes and UL94 V-0 ratings. Mechanical fit with existing mating connectors must be verified, as contact shape affects insertion force and alignment characteristics.

Q: What is the significance of the contact finish thickness difference between parts?

A: Contact finish thickness affects durability and electrical performance. The 1744071-3 specifies 15.0µin (0.38µm) gold thickness, while the 0417910850 provides 30.0µin (0.76µm). Thicker finishes provide extended corrosion resistance and contact life in high-cycle mating applications. The tin-finished Molex parts (1718130003 and 1718133003) at 60.0µin (1.52µm) offer maximum thickness for demanding industrial environments.

Q: How do insulation height differences affect board-level compatibility?

A: The 1744071-3 specifies 0.545" (13.84mm) insulation height, while all Molex substitutes specify 0.446" (11.33mm). This 0.099" (2.51mm) difference affects clearance above the PCB surface. Applications with height-constrained layouts may require the lower-profile Molex options. Conversely, applications requiring maximum insulation clearance should retain the 1744071-3.

Q: What is the difference between the two Molex 1718130003 and 1718133003 parts?

A: Both parts are electrically and mechanically identical, featuring the same contact geometry, finish specifications, and insulation materials. The primary difference is packaging: 1718130003 is supplied in bulk, while 1718133003 is supplied in Cut Tape (CT) format with Pick and Place capability. Selection depends on assembly process requirements and volume considerations.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 1744071-3 is RoHS Compliant, while all Molex substitutes are ROHS3 Compliant. Both designations indicate compliance with RoHS Directive requirements. ROHS3 represents the current regulatory standard. All parts are REACH Unaffected.

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

A: The 1744071-3 specifies 2 positions loaded, indicating that only 2 of the 3 available positions contain contacts. All Molex substitutes specify all positions loaded, meaning all 3 positions contain contacts. This affects the connector's functional capacity and must align with application requirements.

Q: How do the operating temperature ranges compare?

A: The 1744071-3 specifies -55°C to 105°C operating temperature. The Molex substitutes do not provide explicit operating temperature specifications in the available data. Applications with defined temperature requirements should prioritize the 1744071-3 or request temperature specifications from Molex for the substitute parts.

Q: What is the difference between UL94 V-0 and UL94 V-2 flammability ratings?

A: UL94 V-0 represents the highest flammability classification, indicating the material extinguishes within 10 seconds after flame removal with no flaming drips. UL94 V-2 allows up to 60 seconds for self-extinguishing and permits limited flaming drips. Applications requiring maximum fire safety compliance should specify UL94 V-0 rated parts (1744071-3 or 0417910850).

Q: Can contact material differences affect substitution decisions?

A: The 1744071-3 specifies Copper Alloy contact material. The 0417910850 does not specify contact material. The Molex 1718130003 and 1718133003 specify Brass contact material. Both copper alloy and brass are suitable for general purpose and industrial applications. Contact material affects electrical conductivity and corrosion resistance minimally in standard operating conditions.