TE Connectivity AMP Connectors 4-1971905-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 4-1971905-2 is a rectangular connector housing plug assembly from the Grace Inertia GIC series. This component is a 4-position plug housing with 3.30mm pitch, designed for free-hanging in-line mounting applications. The part is currently active in production and maintains full RoHS3 compliance with MSL Level 1 rating. Substitute parts are identified when inventory constraints, packaging requirements, or application-specific color specifications necessitate alternative sourcing while maintaining identical electrical and mechanical performance characteristics.

Substiute Parts

4-1971905-2

TE Connectivity AMP ConnectorsIn Stock: 12544-1971905-2 Datasheet

Current PartRFQ

2-1827385-1

TE Connectivity AMP ConnectorsIn Stock: 60672-1827385-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector housings is determined by strict equivalence across all critical electrical and mechanical parameters. The primary part 4-1971905-2 and its identified substitute 2-1827385-1 share identical specifications across the following determinative parameters:

• Connector type classification (Plug)
• Contact type configuration (Female Socket)
• Position count and arrangement (4 positions, 2 rows)
• Pitch and row spacing dimensions (0.130" / 3.30mm pitch, 0.205" / 5.20mm row spacing)
• Mounting methodology (Free Hanging In-Line)
• Termination approach (Crimp)
• Fastening mechanism (Latch Lock)
• Dielectric material composition (Polyamide PA66, Glass Filled)
• Thermal operating envelope (-30°C ~ 105°C)
• Series designation (Grace Inertia GIC)
• Regulatory compliance status (RoHS3, MSL Level 1)

The sole differentiating factor between these parts is the housing color (Yellow for 4-1971905-2 versus Blue for 2-1827385-1), which does not affect electrical or mechanical performance. Both parts are manufactured by TE Connectivity AMP Connectors and maintain active product status.

Parameter Comparison

Engineering Selection Recommendations

Both 4-1971905-2 and 2-1827385-1 are active production parts manufactured by TE Connectivity AMP Connectors within the Grace Inertia GIC series. Selection between these parts is based on application requirements and supply chain considerations rather than electrical or mechanical performance differences.

4-1971905-2 (Yellow Housing) is appropriate for applications where color coding is specified as yellow or where existing inventory in bulk packaging format is preferred.

2-1827385-1 (Blue Housing) is appropriate for applications where color coding is specified as blue or where bag packaging format is required for smaller quantity requirements.

Both parts maintain identical RoHS compliance status (RoHS3 for the main part, RoHS for the substitute, both meeting current regulatory requirements), MSL Level 1 rating, and operating temperature specifications. The choice between these parts does not impact electrical performance, mechanical fit, or regulatory compliance in applications where color differentiation is not a functional requirement.

Frequently Asked Questions (FAQ)

Q: Are 4-1971905-2 and 2-1827385-1 electrically interchangeable?

A: Yes. Both parts are identical in all electrical and mechanical parameters including connector type, contact configuration, pitch, row spacing, termination method, and fastening mechanism. They differ only in housing color and packaging format.

Q: What is the significance of the color difference between these parts?

A: The housing color (Yellow for 4-1971905-2 and Blue for 2-1827385-1) is a visual identifier only and does not affect electrical performance, mechanical compatibility, or thermal characteristics. Color selection is determined by application-specific requirements or industry standards for circuit identification.

Q: Can I substitute 2-1827385-1 for 4-1971905-2 in an existing design?

A: Substitution is valid from an electrical and mechanical standpoint. If the original design specifies yellow housing for identification purposes, the blue housing of 2-1827385-1 would not be suitable. If color is not a functional requirement, direct substitution is permissible.

Q: What is the difference between Bulk and Bag packaging?

A: Bulk packaging is used for larger quantity orders, while Bag packaging is used for smaller quantity orders. Both packaging formats contain the same component with identical specifications. Packaging selection depends on order quantity and inventory management requirements.

Q: Are both parts RoHS compliant?

A: Yes. The main part 4-1971905-2 carries RoHS3 compliance certification, and the substitute part 2-1827385-1 carries RoHS compliance certification. Both meet current regulatory requirements for restricted substances.

Q: What does MSL Level 1 mean for these connectors?

A: MSL (Moisture Sensitivity Level) Level 1 indicates unlimited shelf life with no special moisture control requirements during storage or handling. These parts do not require desiccant packaging or controlled humidity environments.

Q: Are contacts included with these housing parts?

A: No. Both 4-1971905-2 and 2-1827385-1 are housing assemblies only. Contacts must be sourced separately and crimped into the housing according to TE Connectivity specifications.

Q: What is the operating temperature range for these connectors?

A: Both parts operate across the temperature range of -30°C to 105°C, suitable for industrial and commercial applications with standard thermal requirements.