Molex 0347970402 Rectangular Connector Plug Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0347970402 is a 4-position rectangular connector plug housing with 0.138" (4.60mm) pitch, designed for crimp contact termination in free-hanging inline applications. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance requirements. The natural color housing variant has limited current availability compared to active production alternatives within the same series.

Substiute Parts

0347970402

MolexIn Stock: 7150347970402 Datasheet

Current PartRFQ

0347970401

MolexIn Stock: 60420347970401 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0347970402 is determined by strict equivalence across the following critical parameters:

• Connector Type & Contact Configuration: Plug housing with male blade contacts
• Electrical Interface: 4-position, 0.138" (4.60mm) pitch, single row
• Mechanical Interface: Free-hanging inline mounting with crimp termination and locking ramp fastening
• Series Compatibility: MX150 34797 series housing
• Regulatory Compliance: ROHS3 compliance and MSL 1 rating

The substitute part 0347970401 maintains identical electrical and mechanical specifications. The primary difference is housing color (black versus natural) and product status (active versus obsolete). Both parts share the same base product number (034797) and are functionally interchangeable within the MX150 series ecosystem.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0347970401 is the direct active equivalent for the obsolete 0347970402. Both parts maintain identical electrical and mechanical specifications within the MX150 34797 series. Selection between these parts should be based on:

Product Status: The 0347970401 is active production with significantly higher inventory availability (5966 pcs versus 701 pcs), ensuring supply chain continuity and reducing lead time risk.

Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL 1 rating, meeting current environmental and moisture sensitivity requirements.

Housing Color Differentiation: The 0347970402 features natural color housing while the 0347970401 is black. Color selection should be determined by application requirements and visual identification needs within the end assembly.

Material Specification: The 0347970401 specifies Polybutylene Terephthalate (PBT) insulation material with operating temperature range of -40°C to 105°C. These parameters should be confirmed as compatible with the original design intent.

Frequently Asked Questions (FAQ)

Q: Are the 0347970402 and 0347970401 mechanically interchangeable?

A: Yes. Both parts share identical connector type, contact configuration, pitch, mounting method, and fastening mechanism. They are housed within the same MX150 34797 series and use the same base product number (034797).

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

A: The 0347970402 has natural color housing and is obsolete. The 0347970401 has black color housing and is in active production. All electrical and mechanical specifications are identical.

Q: Can I use the 0347970401 as a direct replacement for the 0347970402?

A: The 0347970401 is functionally equivalent and maintains all critical electrical and mechanical parameters. Housing color is the only visual difference. Confirm that black housing is acceptable for your application requirements.

Q: What does "Contacts Not Included" mean?

A: Both the main part and substitute are connector housings only. Male blade contacts must be sourced separately and crimped into the housing according to Molex specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0347970402 and 0347970401 are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: Why is the 0347970402 listed as obsolete?

A: The natural color variant has been discontinued in favor of the active black housing variant (0347970401). The black version provides equivalent functionality with better supply availability.

Q: What is the pitch specification and why does it matter?

A: The pitch is 0.138" (4.60mm), which defines the center-to-center spacing between contact positions. This specification must match the mating connector and contact design to ensure proper electrical and mechanical connection.