SMB Connector Plug 0734042310 Equivalent & Substitute Parts

Part Overview

The Molex 0734042310 is an SMB straight plug connector with female socket configuration, designed for 50-ohm coaxial cable termination. This connector is engineered for free-hanging (in-line) applications using crimp termination on both center contact and shield. The part is currently active in production and maintains a stock inventory of 681 pieces.

Substitute parts are identified when electrical specifications, mechanical compatibility, and functional parameters remain equivalent across the connector series, allowing for interchangeability in circuit design and assembly operations.

Substiute Parts

0734042310

MolexIn Stock: 7400734042310 Datasheet

Current PartRFQ

0734040710

MolexIn Stock: 9460734040710 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for SMB coaxial connectors is determined by equivalence across the following critical parameters:

Electrical Parameters: Impedance (50 Ohms), frequency rating (4 GHz maximum), and voltage rating (335 V) must be identical.

Mechanical Parameters: Connector style (SMB), connector type (plug with female socket), contact termination method (crimp), shield termination method (crimp), and mounting configuration (free hanging in-line) must match exactly.

Cable Compatibility: Compatible cable groups (RG-174, RG-188, RG-316) must be supported.

Material Specifications: Body material (brass), body finish (nickel), center contact material (phosphor bronze), center contact plating (gold), and dielectric material (PTFE) must be consistent.

The substitute part 0734040710 meets all these criteria and is classified as a parametric equivalent within the 73404 series.

Parameter Comparison

Engineering Selection Recommendations

Both 0734042310 and 0734040710 are active production parts within the Molex 73404 series and maintain identical electrical and mechanical specifications for SMB coaxial connector applications.

The substitute part 0734040710 provides additional documented specifications including operating temperature range (-55°C ~ 155°C), mating cycle rating (500 cycles), and insertion loss (0.2 dB). This part carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement.

Selection between these parts may be determined by packaging requirements (bag versus tray format) and inventory availability. Both parts are suitable for direct substitution in 50-ohm RF applications operating at frequencies up to 4 GHz with RG-174, RG-188, or RG-316 cable termination.

Frequently Asked Questions (FAQ)

Q: Can 0734040710 be used as a direct replacement for 0734042310?

A: Yes. Both connectors are parametric equivalents within the 73404 series with identical electrical specifications (50 Ohms, 4 GHz maximum frequency, 335 V rating), mechanical configuration (SMB plug with female socket, crimp termination), and material composition (brass body with nickel finish, phosphor bronze center contact with gold plating, PTFE dielectric).

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format (0734042310 supplied in bags; 0734040710 supplied in trays) and documented performance specifications. Part 0734040710 includes specified operating temperature range, mating cycle rating, and insertion loss values, along with ROHS3 and REACH compliance documentation.

Q: Are there any cable compatibility differences?

A: No. Both connectors support identical cable groups: RG-174, RG-188, and RG-316. Crimp termination specifications are equivalent for both center contact and shield termination.

Q: Which part should be selected for new designs?

A: Selection should be based on packaging requirements and compliance documentation needs. For applications requiring documented environmental specifications and regulatory compliance records, 0734040710 is the appropriate choice. Both parts are active in production and suitable for new design implementation.

Q: Can these connectors be used interchangeably in existing assemblies?

A: Yes, provided the assembly design accommodates the packaging format difference. The electrical and mechanical performance characteristics are equivalent, allowing direct substitution in circuit applications without design modification.