Molex 0873322420 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0873322420 is a surface mount rectangular connector header with 24 positions arranged in 2 rows at 2.00mm pitch. This connector is designed for board-to-cable/wire applications in automotive, general purpose, and telecommunications sectors. The part is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer	Molex
Connector Type	Header
Contact Type	Male Pin
Number of Positions	24
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Finish - Mating	Gold
Insulation Material	Polyamide (PA46), Nylon 4/6, Glass Filled
Material Flammability Rating	UL94 V-0
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution compatibility for the Molex 0873322420 is determined by strict alignment of the following electrical and mechanical parameters:

Connector Type & Contact Configuration: Header with male pins, 24 positions in 2-row arrangement
Pitch Specifications: Mating pitch of 0.079" (2.00mm) and row spacing of 0.079" (2.00mm)
Mounting & Termination: Surface mount with solder termination
Physical Characteristics: Shrouded 4-wall design with square contact shape
Contact Materials & Finish: Phosphor bronze material with gold mating finish and tin-lead post finish

The Molex 0878322420 meets all these criteria and qualifies as a direct substitute. Both parts share identical connector architecture, pitch geometry, and contact configuration. The primary distinction is the product status transition from obsolete to active, along with updated compliance certifications.

Parameter Comparison

Parameter	0873322420 (Main Part)	0878322420 (Substitute)
Manufacturer	Molex	Molex
Series	Milli-Grid 87332	Milli-Grid 87832
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	24	24
Number of Rows	2	2
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Contact Length - Mating	0.141" (3.60mm)	0.141" (3.60mm)
Insulation Height	0.252" (6.40mm)	0.252" (6.40mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	15.0µin (0.38µm)
Contact Material	Phosphor Bronze	Phosphor Bronze
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Operating Temperature	Not specified	-55°C ~ 105°C
Packaging	Not specified	Tube

Engineering Selection Recommendations

The Molex 0878322420 is the appropriate substitute for the obsolete 0873322420 based on the following factors:

Product Status & Availability: The 0873322420 is obsolete with no ongoing manufacturing. The 0878322420 is active production with documented inventory availability (1709 pieces in stock), ensuring supply chain continuity.

Compliance & Regulatory Alignment: The 0878322420 achieves ROHS3 compliance, addressing modern regulatory requirements. Both parts maintain UL94 V-0 flammability certification and REACH unaffected status. The substitute provides superior compliance posture for new designs and long-term system support.

Functional Equivalence: Identical connector architecture, pitch geometry, contact configuration, and material specifications ensure direct mechanical and electrical compatibility. The 24-position, 2-row header with 2.00mm pitch and shrouded 4-wall design is preserved across both parts.

Operating Specifications: The 0878322420 provides defined operating temperature range (-55°C ~ 105°C), whereas the main part lacks this specification. This addition enhances design documentation clarity without introducing incompatibility.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0878322420 be used as a direct replacement for the 0873322420 in existing designs?

A: Yes. Both connectors share identical pitch (2.00mm), position count (24), row configuration (2 rows), mounting type (surface mount), and contact specifications. Physical and electrical compatibility is complete.

Q: What is the primary reason for substitution?

A: The 0873322420 is obsolete and no longer manufactured. The 0878322420 is the active equivalent from Molex, ensuring ongoing availability and supply chain support.

Q: Are there compliance differences between these parts?

A: The 0878322420 is ROHS3 compliant, while the 0873322420 is RoHS non-compliant. For new designs or systems requiring modern regulatory compliance, the 0878322420 is the appropriate choice.

Q: Do the parts have different packaging?

A: The 0878322420 is supplied in tube packaging. The 0873322420 packaging specification is not provided in the technical data.

Q: Are the contact finishes identical?

A: Both parts feature gold mating contact finish at 15.0µin (0.38µm) thickness. The post finish differs slightly: the 0873322420 uses tin-lead, while the 0878322420 uses tin. This difference is compatible with standard solder termination processes.

Q: What is the operating temperature range?

A: The 0878322420 operates from -55°C to 105°C. The 0873322420 does not specify an operating temperature range in available documentation.

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