TE Connectivity AMP Connectors 178125-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 178125-2 is a 2-position rectangular connector plug housing with a 0.312" (7.92mm) pitch, designed for the Universal Power series. This connector features a red polyamide (PA66) insulation body, crimp contact termination, and latch lock fastening. The part is classified as active product status and is RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the connector family, allowing for functional interchangeability in applications where housing color differentiation is not a critical design requirement.

Substiute Parts

178125-2

TE Connectivity AMP ConnectorsIn Stock: 1063178125-2 Datasheet

Current PartRFQ

178125-1

TE Connectivity AMP ConnectorsIn Stock: 5128178125-1 Datasheet

Parametric EquivalentRFQ

178125-4

TE Connectivity AMP ConnectorsIn Stock: 3101178125-4 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 178125-2 are identified based on strict electrical and mechanical parameter equivalence within the Universal Power connector series. The following parameters determine substitution eligibility:

Critical Equivalence Parameters:

• Connector Type: Plug
• Contact Type: Female Socket
• Number of Positions: 2
• Pitch: 0.312" (7.92mm)
• Number of Rows: 1
• Mounting Type: Free Hanging (In-Line)
• Contact Termination: Crimp
• Fastening Type: Latch Lock
• Insulation Material: Polyamide (PA66), Nylon 6/6
• Operating Temperature Range: -30°C ~ 105°C
• Base Product Number: 178125

Variable Parameter (Non-Critical for Substitution):

• Housing Color: Red (178125-2), Natural (178125-1), Yellow (178125-4)

The identified substitute parts 178125-1 and 178125-4 maintain identical electrical and mechanical specifications. Housing color variation does not affect connector functionality, electrical performance, or mechanical compatibility. All substitute parts are active product status with RoHS compliance and MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

All three parts—178125-2, 178125-1, and 178125-4—are active product status with full regulatory compliance. Selection between these parts is determined by application-specific color coding requirements or inventory availability.

178125-2 (Red Housing): Primary selection when red color coding is specified for circuit identification, power distribution, or system documentation standards.

178125-1 (Natural Housing): Alternative selection offering equivalent electrical and mechanical performance with natural polyamide coloring. Provides higher inventory availability (5026 pcs) compared to the main part (964 pcs).

178125-4 (Yellow Housing): Alternative selection offering equivalent electrical and mechanical performance with yellow color coding. Suitable for applications requiring yellow identification per industry standards or internal documentation protocols.

All parts maintain RoHS compliance and MSL 1 rating. The 178125-1 carries RoHS Compliant status while 178125-2 and 178125-4 carry RoHS3 Compliant status. Both compliance levels are acceptable for equivalent substitution in active product applications.

Frequently Asked Questions (FAQ)

Q: Can 178125-1 and 178125-4 be used interchangeably with 178125-2 in the same circuit?

A: Yes. All three parts maintain identical electrical and mechanical specifications including connector type, contact configuration, pitch, termination method, and operating temperature range. Housing color is the only variable parameter and does not affect electrical performance or mechanical compatibility.

Q: What is the significance of the housing color difference?

A: Housing color serves as a visual identification marker for circuit organization, power distribution classification, or system documentation purposes. The color variation does not alter connector functionality, electrical characteristics, or mechanical fit.

Q: Are there any compliance differences between the substitute parts?

A: The 178125-1 carries RoHS Compliant status while 178125-2 and 178125-4 carry RoHS3 Compliant status. Both compliance levels are valid for active product applications. All parts maintain MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification.

Q: Do the substitute parts require different contact pins or mating connectors?

A: No. All parts use identical crimp contact termination and latch lock fastening. The 2-position, 0.312" (7.92mm) pitch configuration is consistent across all variants, ensuring compatibility with the same contact pins and mating receptacles.

Q: What inventory considerations apply when selecting between these parts?

A: The 178125-1 (Natural) offers the highest inventory availability at 5026 pcs. The 178125-4 (Yellow) provides 3032 pcs, while the 178125-2 (Red) has 964 pcs in stock. Selection based on color requirements should account for inventory levels to optimize supply chain efficiency.

Q: Are all parts suitable for the full operating temperature range?

A: Yes. All three parts operate across the identical temperature range of -30°C to 105°C, maintaining electrical and mechanical performance throughout this specification window.