Molex 0393550013 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Molex 0393550013 is a 13-position terminal block header with male pins, shrouded design, and 4.6mm pitch configured for 90° right-angle through-hole mounting. This component is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and procurement planning. The part operates at 300V UL with 10A current capacity and is housed in black polyamide (PA46) material with tin-plated brass contacts.

Substiute Parts

0393550013

MolexIn Stock: 8450393550013 Datasheet

Current PartRFQ

0395021013

MolexIn Stock: 39650395021013 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0393550013 is determined by the following critical parameters:

• Electrical Compatibility: Voltage rating (300V UL), current capacity (minimum 8A UL acceptable), and contact material (brass with tin plating)
• Mechanical Compatibility: 13 positions, 4.6mm pitch, 90° right-angle orientation, through-hole mounting, and shrouded (4-side) design
• Physical Dimensions: Contact tail length, insulation height, and overall form factor must accommodate existing PCB layouts
• Material & Compliance: Polyamide housing, RoHS3 compliance, and MSL rating (1 - Unlimited)

The substitute part Molex 0395021013 meets these criteria while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0395021013 is a direct functional substitute for the obsolete 0393550013 based on electrical and mechanical parameter alignment. Selection should be guided by the following factors:

Electrical Considerations: The substitute's 8A UL current rating is 2A lower than the original 10A rating. Applications requiring the full 10A capacity must evaluate whether the 8A limit presents a constraint. For most standard terminal block applications, 8A is sufficient.

Material & Thermal Performance: The substitute uses PA66 (nylon 6/6) housing versus PA46 (nylon 4/6) in the original. PA66 provides superior thermal stability and mechanical strength. The substitute's operating temperature range (-40°C to 105°C) is narrower than the original's 140°C maximum, requiring verification against application thermal requirements.

Dimensional Compatibility: Minor differences exist in contact tail length (0.004" variance) and insulation height (0.010" variance). These differences are within typical manufacturing tolerances but must be verified against specific PCB hole sizing and clearance requirements.

Compliance & Availability: The substitute carries active product status with ROHS3 compliance and documented UL94 V-0 flammability rating, providing superior long-term supply chain security and regulatory documentation compared to the obsolete original.

Frequently Asked Questions (FAQ)

Q: Can the 0395021013 directly replace the 0393550013 in existing designs?

A: Electrical and mechanical compatibility is confirmed for standard applications. Verify that the 8A current rating meets your circuit requirements and that the minor dimensional variations (contact tail length and insulation height) are compatible with your PCB hole specifications and assembly clearances.

Q: What is the significance of the housing material change from PA46 to PA66?

A: PA66 (nylon 6/6) offers improved thermal stability, mechanical strength, and creep resistance compared to PA46 (nylon 4/6). This change generally represents an enhancement for reliability and performance in industrial applications.

Q: Does the substitute have the same voltage rating?

A: Yes, both parts are rated for 300V UL. Voltage compatibility is confirmed.

Q: Why is the operating temperature range different?

A: The original part specifies a maximum of 140°C without a defined lower limit. The substitute specifies a range of -40°C to 105°C. If your application requires operation above 105°C, the original specification must be retained or an alternative source identified.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant. The substitute includes a documented UL94 V-0 flammability rating, whereas the original does not specify this parameter. This represents improved documentation for regulatory compliance.

Q: What is the inventory status of each part?

A: The original 0393550013 has 799 units in stock (obsolete status). The substitute 0395021013 has 3,877 units in stock with active product status, providing superior long-term availability.