Molex 0395354021 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Molex 0395354021 is a 21-position terminal block header featuring male pins with 4-side shrouding, designed for vertical through-hole mounting with 0.200" (5.08mm) pitch spacing. This component is part of the Eurostyle ESE 39535 series and is rated for 15 A at 300 V per UL standards. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

0395354021

MolexIn Stock: 9580395354021 Datasheet

Current PartRFQ

0395350021

MolexIn Stock: 11700395350021 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Molex 0395354021 is determined by strict equivalence across the following critical parameters:

• Number of positions: 21
• Pitch spacing: 0.200" (5.08mm)
• Header type: Male pins with 4-side shrouding
• Mounting configuration: Vertical through-hole
• Electrical ratings: 15 A (UL), 300 V (UL)
• Series compatibility: Eurostyle ESE 39535

The substitute part Molex 0395350021 maintains identical mechanical and electrical specifications while offering active product status and improved availability. Both components share the same base product number (039535) and are fully interchangeable within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0395350021 is the direct active equivalent for the obsolete Molex 0395354021. Both components are ROHS3 compliant and maintain identical electrical and mechanical specifications across all critical parameters. The substitute part offers the following advantages:

• Active product status with established supply chain availability
• Extended operating temperature range (-40°C to 115°C versus -40°C to 105°C)
• Housing material upgraded to PA66 (Nylon 6/6) from PA46 (Nylon 4/6), providing enhanced thermal and chemical resistance
• Identical electrical ratings, contact materials, and mechanical dimensions ensure direct PCB compatibility

Selection of the 0395350021 eliminates obsolescence risk while maintaining full functional and dimensional equivalence.

Frequently Asked Questions (FAQ)

Q: Are the 0395354021 and 0395350021 mechanically interchangeable?

A: Yes. Both components share identical pitch spacing (0.200"/5.08mm), position count (21), mounting type (vertical through-hole), and physical dimensions including contact tail length (0.150"/3.81mm) and insulation height (0.472"/12.00mm). PCB footprints are identical.

Q: What is the difference in housing material between these parts?

A: The main part uses PA46 (Nylon 4/6) while the substitute uses PA66 (Nylon 6/6). PA66 offers superior thermal stability and chemical resistance, making it suitable for a wider range of operating conditions.

Q: Does the extended temperature range of the substitute part affect compatibility?

A: No. The substitute's operating range (-40°C to 115°C) encompasses the main part's range (-40°C to 105°C). This represents an improvement with no compatibility concerns.

Q: Are both parts RoHS compliant?

A: Yes. Both the 0395354021 and 0395350021 are ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: What is the electrical capacity of these terminal blocks?

A: Both components are rated for 15 A at 300 V per UL standards, with identical contact materials (brass) and mating finish (tin).