TE Connectivity AMP Connectors 176381-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 176381-4 is a 100 position rectangular connector plug with center strip contacts, right angle mounting, and gold plating. This connector is designed for through-hole applications requiring board lock features and operates at a 0.050" (1.27mm) pitch across 2 rows.

The 176381-4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this connector specification.

Substiute Parts

176381-4

TE Connectivity AMP ConnectorsIn Stock: 770176381-4 Datasheet

Current PartRFQ

5176381-4

TE Connectivity AMP ConnectorsIn Stock: 30515176381-4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 176381-4 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to function as a direct substitute:

• Connector type (Plug, Center Strip Contacts)
• Number of positions (100)
• Pitch specification (0.050" / 1.27mm)
• Number of rows (2)
• Mounting type (Through Hole, Right Angle)
• Contact finish material (Gold)
• Contact finish thickness (11.8µin / 0.30µm)
• Height above board (0.335" / 8.50mm)
• Board lock feature presence
• Series designation (Free Height)
• Moisture sensitivity level (1)

The substitute part 5176381-4 meets all these criteria and is therefore classified as a direct equivalent substitute for the 176381-4.

Parameter Comparison

Engineering Selection Recommendations

The 176381-4 is classified as obsolete, which necessitates transition to an active equivalent part for new designs and ongoing production support.

The substitute part 5176381-4 is functionally identical to the 176381-4 across all critical electrical and mechanical parameters. The 5176381-4 maintains the same connector specifications, contact configuration, and physical dimensions required for direct board-level compatibility.

A significant distinction exists in regulatory compliance status. The 5176381-4 is ROHS3 compliant, whereas the 176381-4 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the 5176381-4 is the appropriate selection.

The 5176381-4 is currently in active production status with substantially higher inventory availability (3000 pieces versus 682 pieces), supporting improved supply chain continuity and lead time performance.

Both parts carry identical moisture sensitivity level (MSL 1) and ECCN/HTSUS classifications, indicating equivalent handling and regulatory trade requirements.

Frequently Asked Questions (FAQ)

Q: Can the 5176381-4 be used as a direct replacement for the 176381-4 in existing designs?

A: Yes. The 5176381-4 is electrically and mechanically identical to the 176381-4. All critical parameters including connector type, position count, pitch, mounting configuration, contact finish, and board dimensions are equivalent. No design modifications are required for substitution.

Q: What is the primary difference between these two parts?

A: The 176381-4 is obsolete and RoHS non-compliant, while the 5176381-4 is an active production part with ROHS3 compliance. Functionally, they are identical.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical or mechanical performance. Both parts deliver identical electrical characteristics and physical compatibility.

Q: Are there packaging differences between the 176381-4 and 5176381-4?

A: The 5176381-4 is supplied in bulk packaging. The original packaging specification for the 176381-4 was not provided. Confirm packaging requirements with your procurement process.

Q: Which part should be selected for new production designs?

A: The 5176381-4 is the appropriate selection for new designs. It is in active production, offers superior inventory availability, and meets current RoHS compliance requirements.

Q: Are the contact finish specifications identical?

A: Yes. Both parts feature gold contact finish with identical thickness specification of 11.8µin (0.30µm).

Q: Do both parts support the same board lock feature?

A: Yes. Both the 176381-4 and 5176381-4 include board lock features and are functionally equivalent in this regard.