TE Connectivity 176278-4 Rectangular Connector Plug Housing Equivalent & Substitute Parts

Part Overview

The TE Connectivity 176278-4 is a 12-position rectangular connector plug housing manufactured by TE Connectivity AMP Connectors. This component is classified as a Universal Power series connector with female socket contact type, designed for crimp termination and latch lock fastening. The part is currently in active product status with 1,039 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across alternative configurations, primarily differing in housing color or connector series designation while preserving core functional specifications.

Substiute Parts

176278-4

TE Connectivity AMP ConnectorsIn Stock: 1092176278-4 Datasheet

Current PartRFQ

176278-1

TE Connectivity AMP ConnectorsIn Stock: 12092176278-1 Datasheet

Parametric EquivalentRFQ

176278-9

TE Connectivity AMP ConnectorsIn Stock: 2053176278-9 Datasheet

Parametric EquivalentRFQ

177905-1

TE Connectivity AMP ConnectorsIn Stock: 3399177905-1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 176278-4 are identified based on strict equivalence of the following core electrical and mechanical parameters:

• Number of Positions: 12
• Pitch: 0.156" (3.96mm)
• Number of Rows: 3
• Row Spacing: 0.181" (4.60mm)
• Contact Type: Female Socket
• Connector Type: Plug
• 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

Substitute parts maintain all electrical and mechanical specifications while differing in housing color or connector series designation. The 176278-4 (Yellow) is substitutable with 176278-1 (Natural) and 176278-9 (Black), which share identical Universal Power series specifications. The 177905-1 (Natural) represents an alternative from the Power Double Lock series with equivalent dimensional and electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full compliance with RoHS regulations. The 176278-1 and 176278-9 are direct equivalents within the Universal Power series, differing only in housing color (Natural and Black respectively). Both maintain RoHS Compliant certification identical to the main part 176278-4.

The 177905-1 represents an alternative from the Power Double Lock series with equivalent electrical and mechanical specifications. This part carries ROHS3 Compliant certification, indicating compliance with the most current RoHS directive requirements.

Selection between substitute parts should be based on application-specific requirements including housing color specification, series compatibility with existing connector systems, and inventory availability. All parts maintain identical contact configuration, pitch, row spacing, operating temperature range, and termination method.

Frequently Asked Questions (FAQ)

Q: Can 176278-1 be used as a direct replacement for 176278-4?

A: Yes. The 176278-1 maintains identical electrical and mechanical specifications including 12 positions, 0.156" pitch, 3 rows with 0.181" row spacing, female socket contacts, crimp termination, and latch lock fastening. The primary difference is housing color (Natural versus Yellow). Both parts are Active status and RoHS Compliant.

Q: What is the difference between 176278-9 and 176278-4?

A: The 176278-9 differs from 176278-4 only in housing color (Black versus Yellow). All electrical and mechanical parameters are identical: 12 positions, 0.156" pitch, 3-row configuration, female socket contacts, crimp termination, and latch lock fastening. The 176278-9 carries ROHS3 Compliant certification.

Q: Is 177905-1 compatible with 176278-4?

A: The 177905-1 maintains all critical electrical and mechanical specifications equivalent to 176278-4: 12 positions, 0.156" pitch, 3 rows with 0.181" row spacing, female socket contacts, crimp termination, and latch lock fastening. The primary distinction is series designation (Power Double Lock versus Universal Power). Both are Active status with full RoHS compliance.

Q: Do all substitute parts require the same contact specifications?

A: Yes. All substitute parts listed use identical contact type (Female Socket), contact termination method (Crimp), and fastening type (Latch Lock). Contacts are not included with any of these housing parts and must be sourced separately according to application requirements.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -30°C to 105°C. This specification is maintained across 176278-1, 176278-9, and 177905-1.

Q: Are there differences in moisture sensitivity between substitute parts?

A: No. All substitute parts maintain Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Which substitute part has the highest inventory availability?

A: The 176278-1 (Natural color) has the highest inventory with 12,030 units in stock, compared to 2,025 units for 176278-9 and 3,367 units for 177905-1.