TE Connectivity 1658043-3 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1658043-3 is a 120-position surface mount rectangular connector receptacle with center strip contacts and gold plating. This connector is part of the MICTOR SB series and is designed for high-density interconnect applications requiring reliable signal and power distribution. The part maintains Active product status with full RoHS3 compliance and MSL 1 rating, indicating broad applicability across industrial and commercial electronics manufacturing. Substitute parts are identified to provide design flexibility, inventory optimization, and supply chain continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Substiute Parts

1658043-3

TE Connectivity AMP ConnectorsIn Stock: 7531658043-3 Datasheet

Current PartRFQ

2-1658043-3

TE Connectivity AMP ConnectorsIn Stock: 15542-1658043-3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 1658043-3 are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• Connector Type and Series: Receptacle configuration within the MICTOR SB series
• Position Count and Pitch: 120 positions at 0.031" (0.80mm) pitch
• Row Configuration: 2-row arrangement
• Mounting Technology: Surface mount compatibility
• Contact Specifications: Gold flash finish on center strip contacts
• Physical Dimensions: Height above board and mated stacking height compatibility
• Compliance Standards: RoHS3 compliance and MSL 1 rating
• Mechanical Features: Board guide and ground bus plane integration

The substitute part 2-1658043-3 maintains complete parametric alignment with the primary part number across all specified dimensions, electrical characteristics, and environmental ratings. This part shares the identical base product number (1658043) and differs only in the connector variant designation, indicating it is a direct functional equivalent within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Both the primary part number 1658043-3 and the substitute part number 2-1658043-3 are Active products manufactured by TE Connectivity AMP Connectors with full RoHS3 compliance and MSL 1 rating. The parts are electrically and mechanically equivalent across all specified parameters, including connector type, position count, pitch, mounting configuration, contact finish, and physical dimensions.

Selection between these part numbers should be based on inventory availability and supply chain requirements. The substitute part 2-1658043-3 currently maintains higher inventory levels (1520 pieces) compared to the primary part (740 pieces), making it suitable for high-volume production requirements or when extended lead times are a concern.

Both parts are suitable for applications requiring 120-position surface mount rectangular connectors with gold-plated center strip contacts, board guide features, and ground bus plane integration. The identical mated stacking height options (5mm through 30mm) ensure compatibility with existing connector mating interfaces and PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Are the 1658043-3 and 2-1658043-3 connectors fully interchangeable?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications. They share identical connector type, position count, pitch, mounting technology, contact finish, physical dimensions, and compliance ratings. Direct substitution is supported without design modification.

Q: What is the difference between part numbers 1658043-3 and 2-1658043-3?

A: The part numbers differ only in the connector variant designation (the "2-" prefix on the substitute part). Both parts share the same base product number (1658043) and are manufactured to identical specifications within the MICTOR SB series. The variant designation does not affect electrical or mechanical performance.

Q: Can these connectors be used in applications requiring RoHS compliance?

A: Yes. Both the primary and substitute parts are ROHS3 compliant and suitable for applications subject to RoHS regulations. The gold flash contact finish and lead-free construction meet all RoHS3 requirements.

Q: What is the moisture sensitivity level for these connectors?

A: Both parts carry an MSL 1 rating, indicating unlimited moisture sensitivity level. These connectors do not require special moisture control during storage, handling, or assembly and are suitable for standard manufacturing environments.

Q: Are the mated stacking heights the same for both part numbers?

A: Yes. Both the 1658043-3 and 2-1658043-3 support identical mated stacking heights of 5mm, 8mm, 11mm, 14mm, 16mm, 19mm, 22mm, 25mm, and 30mm. This ensures compatibility with existing connector mating interfaces and PCB assembly designs.

Q: What surface mount assembly considerations apply to these connectors?

A: Both parts are designed for surface mount assembly with a height above board of 0.128" (3.25mm). The board guide and ground bus plane features provide mechanical stability and electrical performance during reflow soldering and thermal cycling. Standard SMD assembly processes are applicable.

Q: Can these 120-position connectors be used as direct replacements in existing designs?

A: Yes. The parametric equivalence of both part numbers ensures direct replacement capability in existing designs without PCB layout modifications, connector footprint changes, or mating interface adjustments. The identical pitch, row configuration, and physical dimensions maintain full compatibility.