Molex 0395321024 Terminal Block Header – Equivalent & Substitute Parts

Part Overview

The Molex 0395321024 is a 24-position terminal block header with male pins, shrouded on four sides, designed for right-angle through-hole mounting at 5.08mm pitch. This component is used in industrial control systems, power distribution modules, and signal routing applications requiring robust electrical connections with UL certification. The part is currently active in production with 706 units in stock. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across different manufacturer designs.

Key Parameters

Parameter	Value
Number of Positions	24
Pitch	0.200" (5.08mm)
Header Orientation	90°, Right Angle
Type	Header, Male Pins, Shrouded (4 Side)
Termination Style	Solder
Mounting Type	Through Hole
Current Rating (UL)	15 A
Voltage Rating (UL)	300 V
Operating Temperature	-40°C ~ 105°C
Contact Material	Brass
Contact Mating Finish	Tin
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0395321024 is determined by strict equivalence across the following critical parameters:

Electrical Performance: Current rating (15 A UL), voltage rating (300 V UL), and contact material (brass with tin finish) must match exactly
Mechanical Compatibility: 24 positions, 5.08mm pitch, 90° right-angle orientation, male pins with four-side shrouding, and through-hole solder termination must be identical
Thermal & Environmental: Operating temperature range (-40°C ~ 105°C) and flammability rating (UL94 V-0) must be maintained
Regulatory Compliance: RoHS compliance status and MSL rating (1 – Unlimited) must be equivalent or superior

The Amphenol PCD ELFH24210 meets all these criteria and qualifies as a direct substitute. Variations in housing material (polyamide versus polybutylene terephthalate) and insulation height do not affect functional substitutability when all electrical and mechanical parameters remain equivalent.

Parameter Comparison

Parameter	Molex 0395321024	Amphenol PCD ELFH24210	Match Status
Manufacturer Part Number	0395321024	ELFH24210	Different
Number of Positions	24	24	Equivalent
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	Equivalent
Header Orientation	90°, Right Angle	90°, Right Angle	Equivalent
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Equivalent
Termination Style	Solder	Solder	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Current Rating (UL)	15 A	15 A	Equivalent
Voltage Rating (UL)	300 V	300 V	Equivalent
Operating Temperature	-40°C ~ 105°C	-40°C ~ 105°C	Equivalent
Contact Material	Brass	Brass	Equivalent
Contact Mating Finish	Tin	Tin	Equivalent
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
RoHS Status	ROHS3 Compliant	RoHS Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Housing Material	Polyamide (PA66), Nylon 6/6	Polybutylene Terephthalate (PBT)	Different
Insulation Height	0.472" (12.00mm)	0.319" (8.10mm)	Different
Product Status	Active	Active	Equivalent
Inventory Availability	706 Pcs	858 Pcs	Both In Stock

Engineering Selection Recommendations

Both the Molex 0395321024 and Amphenol PCD ELFH24210 are active production components with equivalent electrical ratings, mechanical configurations, and regulatory compliance. Selection between these parts should be based on:

Supply Chain Continuity: The Amphenol PCD ELFH24210 offers higher current inventory (858 units versus 706 units), providing improved availability for high-volume procurement
Regulatory Compliance: Both parts meet RoHS requirements and carry UL94 V-0 flammability certification, suitable for industrial applications requiring safety compliance
Physical Footprint Considerations: The Molex part features a taller insulation height (12.00mm) compared to the Amphenol part (8.10mm). PCB layout and connector clearance must be evaluated for the specific application
Housing Material Differences: Polyamide (PA66) and polybutylene terephthalate (PBT) exhibit different thermal and chemical resistance profiles. Material selection should align with the operating environment

Frequently Asked Questions (FAQ)

Q: Can the Amphenol PCD ELFH24210 be used as a direct replacement for the Molex 0395321024 in existing designs?

A: Yes, provided that the reduced insulation height (8.10mm versus 12.00mm) does not create clearance conflicts on the PCB or in the mechanical assembly. All electrical parameters, pin configuration, and pitch are identical.

Q: Are there any differences in solder joint reliability between these two parts?

A: Both parts use identical termination styles (solder), contact materials (brass), and mating finishes (tin). Solder joint reliability is determined by PCB design, reflow profile, and assembly process rather than manufacturer differences.

Q: What is the significance of the different housing materials?

A: Polyamide (PA66) and polybutylene terephthalate (PBT) are both thermoplastic materials with UL94 V-0 ratings. PBT offers superior chemical resistance and dimensional stability at elevated temperatures, while PA66 provides lower cost. For standard industrial applications within the -40°C to 105°C operating range, both materials are functionally equivalent.

Q: Do both parts meet the same moisture sensitivity requirements?

A: Yes. Both parts carry MSL rating 1 (Unlimited), indicating no moisture sensitivity precautions are required during storage, handling, or assembly.

Q: Is there a performance difference in current-carrying capacity?

A: No. Both parts are rated for 15 A at 300 V per UL standards. Current-carrying capacity is identical.

Q: Which part should be selected for new designs?

A: Selection should be based on supply availability, PCB layout constraints related to insulation height, and preferred housing material characteristics. Both parts are equally suitable for new designs meeting the specified electrical and mechanical requirements.

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