Molex 0395215021 Terminal Block Header – Equivalent & Substitute Parts

Part Overview

The Molex 0395215021 is a 21-position terminal block header with male pins, shrouded design, and 5.00mm pitch for vertical through-hole mounting. This component is used in industrial control systems, power distribution modules, and signal routing applications requiring secure, high-density interconnection. The part is active in production with full RoHS3 compliance and UL certification. Substitute parts may be required due to supply constraints, regional availability, or design standardization across manufacturing facilities.

Substiute Parts

0395215021

MolexIn Stock: 9500395215021 Datasheet

Current PartRFQ

1758209

Phoenix ContactIn Stock: 9851758209 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Phoenix Contact 1758209 qualifies as a functional equivalent based on the following substitution criteria:

Matching Parameters:

• 21 positions, single level configuration
• Vertical through-hole mounting orientation
• Male pin header with 2-side shrouded design
• Solder termination style
• Green color housing
• Tin contact mating finish
• UL94 V-0 flammability rating
• RoHS3 compliance
• 300 V UL voltage rating
• Active product status

Allowable Variance:

• Pitch tolerance: 0.197" (5.00mm) vs. 0.200" (5.08mm) – within standard PCB layout tolerance for terminal block applications
• Current rating: 15 A (Molex) vs. 12 A (Phoenix Contact) – Phoenix Contact rating is derated but acceptable for applications not requiring maximum current capacity
• Contact tail length: 0.150" (3.81mm) vs. 0.154" (3.90mm) – within solder joint design margins
• Insulation height: 0.470" (11.94mm) vs. 0.472" (12.00mm) – negligible mechanical difference

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0395215021 and Phoenix Contact 1758209 are active, production-grade components with identical UL94 V-0 flammability certification and RoHS3 compliance. Selection between these parts should be based on:

1. Current Capacity Requirements: The Molex part supports 15 A UL rating, while the Phoenix Contact part is rated at 12 A UL. Applications requiring the full 15 A capacity must use the Molex part.

2. PCB Layout Compatibility: The pitch difference of 0.003" (0.08mm) is within standard PCB manufacturing tolerances for terminal block footprints. Verify PCB artwork accommodates the Phoenix Contact 5.08mm pitch if substituting.

3. Supply and Cost Considerations: Both parts are in active production. Selection may be driven by regional supplier availability or procurement agreements.

4. Mechanical Fit: Contact tail length and insulation height differences are within acceptable solder joint design margins for standard through-hole assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1758209 be used as a direct replacement for the Molex 0395215021?

A: The Phoenix Contact part is functionally equivalent for applications operating at or below 12 A. The 0.003" pitch difference requires PCB footprint verification. Both parts share identical connector type, position count, voltage rating, and compliance certifications.

Q: What is the impact of the pitch difference (5.00mm vs. 5.08mm)?

A: The 0.08mm difference is within standard PCB manufacturing tolerance for terminal block applications. Existing PCB artwork designed for 5.00mm pitch will accommodate 5.08mm pitch connectors without functional issues. Verify with your PCB fabricator if tight tolerances are specified.

Q: Are there current capacity limitations when using the Phoenix Contact substitute?

A: Yes. The Phoenix Contact 1758209 is rated at 12 A UL, compared to 15 A UL for the Molex part. Applications requiring continuous operation above 12 A must use the Molex 0395215021.

Q: Do both parts meet the same regulatory standards?

A: Both parts are UL94 V-0 rated, RoHS3 compliant, and carry identical UL voltage certification (300 V). Both are active production parts with equivalent compliance status.

Q: What should be verified before substituting these parts in production?

A: Confirm PCB footprint compatibility with 5.08mm pitch, verify application current requirements do not exceed 12 A, and validate solder reflow profiles accommodate the slight contact tail length variation (0.004").