Molex 0434590040 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0434590040 is a shrouded vertical header connector from the Mini-Fit BMI 43459 series, designed for through-hole board-to-board or cable applications. This connector features 10 positions arranged in 2 rows with 0.165" (4.20mm) pitch and mating row spacing. The part is classified as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	10
Number of Rows	2
Pitch - Mating	0.165" (4.20mm)
Row Spacing - Mating	0.165" (4.20mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Termination	Solder
Contact Material	Brass
Contact Finish - Mating	Tin
Insulation Material	Polyamide (PA66), Nylon 6/6
Insulation Height	0.555" (14.10mm)
RoHS Status	ROHS3 Compliant
Material Flammability Rating	UL94 V-2

Substitute Part Grouping Explanation

The Molex 0015246101 qualifies as a direct substitute for the 0434590040 based on the following critical parameters:

Connector Type & Contact Configuration: Both are shrouded vertical headers with male pin contacts
Position Count & Arrangement: Identical 10-position, 2-row configuration
Pitch Specifications: Matching 0.165" (4.20mm) mating pitch and row spacing
Mounting & Termination: Both utilize through-hole mounting with solder termination
Physical Dimensions: Identical insulation height of 0.555" (14.10mm) and contact post length of 0.138" (4.60mm)
Material & Finish Specifications: Brass contacts with tin finish on both mating and post surfaces; polyamide insulation material
Compliance & Certifications: Both are ROHS3 compliant with UL94 V-2 flammability rating

The primary distinction is product status: the 0434590040 is obsolete, while the 0015246101 is active with significantly higher inventory availability (17,799 units versus 762 units).

Parameter Comparison

Parameter	0434590040 (Main Part)	0015246101 (Substitute)
Manufacturer	Molex	Molex
Series	Mini-Fit BMI 43459	Mini-Fit BMI 42440
Product Status	Obsolete	Active
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	10	10
Number of Rows	2	2
Pitch - Mating	0.165" (4.20mm)	0.165" (4.20mm)
Row Spacing - Mating	0.165" (4.20mm)	0.165" (4.20mm)
Mounting Type	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Contact Material	Brass	Brass
Contact Finish - Mating	Tin	Tin
Contact Finish Thickness - Mating	100.0µin (2.54µm)	100.0µin (2.54µm)
Contact Finish - Post	Tin	Tin
Contact Finish Thickness - Post	100.0µin (2.54µm)	100.0µin (2.54µm)
Insulation Material	Polyamide (PA66), Nylon 6/6	Polyamide (PA66), Nylon 6/6
Insulation Height	0.555" (14.10mm)	0.555" (14.10mm)
Contact Length - Post	0.138" (4.60mm)	0.138" (4.60mm)
Material Flammability Rating	UL94 V-2	UL94 V-2
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Inventory Status	762 Pcs New Original In Stock	17,799 Pcs New Original In Stock
Packaging	-	Tray

Engineering Selection Recommendations

The Molex 0015246101 is the appropriate selection for applications currently specified with the 0434590040. The substitute part maintains electrical and mechanical compatibility across all critical parameters: identical connector geometry, contact configuration, pitch specifications, and material composition.

The 0015246101 offers the additional advantage of active product status with substantially higher inventory availability, supporting both new production and field replacement requirements. Both parts maintain equivalent compliance certifications including ROHS3 compliance and UL94 V-2 flammability rating, ensuring regulatory alignment for industrial, medical, and telecommunications applications.

Frequently Asked Questions (FAQ)

Q: Are the 0434590040 and 0015246101 mechanically interchangeable?

A: Yes. Both connectors share identical mating pitch (0.165"), row spacing (0.165"), insulation height (0.555"), and contact post length (0.138"). The 4-wall shrouded design and through-hole mounting configuration are identical, ensuring direct mechanical compatibility in PCB layouts.

Q: Do these parts have the same electrical specifications?

A: The provided specifications do not include current or voltage ratings for either part. Both connectors use identical brass contacts with tin finish and polyamide insulation material. For electrical performance verification, consult the manufacturer's detailed datasheets.

Q: What is the difference between the series designations (Mini-Fit BMI 43459 vs. Mini-Fit BMI 42440)?

A: The series designations reflect different product generations within the Molex Mini-Fit BMI connector family. Despite different series numbers, the 0015246101 maintains full compatibility with applications designed for the 0434590040 based on matching physical and electrical parameters.

Q: Why is the 0434590040 listed as obsolete?

A: The 0434590040 has been discontinued by Molex. The 0015246101 represents the active equivalent for ongoing production and maintenance applications.

Q: Does packaging differ between these parts?

A: The 0434590040 packaging is not specified in the available data. The 0015246101 is supplied in tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the 0434590040 and 0015246101 are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for industrial, medical, and telecommunications applications.

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