Molex 0452801202 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0452801202 is a shrouded header connector from the Micro-Fit 3.0 BMI CPI 45280 series, designed for through-hole board-to-board or cable applications with 12 positions arranged in 2 rows at 3.00mm pitch. This connector features male pins with gold-plated mating contacts and tin-lead post finish, suitable for general purpose, medical, military, and telecommunications applications.

The 0452801202 carries an obsolete product status. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for applications currently using this connector.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	12
Number of Rows	2
Pitch - Mating	0.118" (3.00mm)
Row Spacing - Mating	0.118" (3.00mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Insulation Height	0.457" (11.60mm)
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Series	Micro-Fit 3.0 BMI CPI 45280

Substitute Part Grouping Explanation

Substitution of the Molex 0452801202 is determined by strict equivalence across the following critical parameters:

Connector type (Header)
Contact type (Male Pin)
Position count and row configuration (12 positions, 2 rows)
Mating pitch and row spacing (0.118" / 3.00mm)
Mounting method (Through Hole)
Shrouding configuration (Shrouded - 4 Wall)
Fastening mechanism (Push-Pull)
Insulation height (0.457" / 11.60mm)
Contact shape (Square)
Flammability rating (UL94 V-0)
Series compatibility (Micro-Fit 3.0 BMI CPI 45280)

The Molex 0452801252 meets all these criteria and qualifies as a direct substitute. Differences in contact finish specifications and product status do not affect mechanical or electrical interchangeability within the defined parameter set.

Parameter Comparison

Parameter	0452801202 (Main Part)	0452801252 (Substitute)
Manufacturer	Molex	Molex
Series	Micro-Fit 3.0 BMI CPI 45280	Micro-Fit 3.0 BMI CPI 45280
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	12	12
Number of Rows	2	2
Pitch - Mating	0.118" (3.00mm)	0.118" (3.00mm)
Row Spacing - Mating	0.118" (3.00mm)	0.118" (3.00mm)
Mounting Type	Through Hole	Through Hole
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Fastening Type	Push-Pull	Push-Pull
Insulation Height	0.457" (11.60mm)	0.457" (11.60mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin-Lead	Tin
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Polyamide (PA), Nylon, Glass Filled
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The Molex 0452801252 is the appropriate substitute for the obsolete 0452801202. Both connectors maintain identical mechanical and electrical specifications across all critical parameters defined for the Micro-Fit 3.0 series.

The 0452801252 offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the 0452801252 achieves ROHS3 compliance, whereas the 0452801202 is RoHS non-compliant. This distinction is relevant for applications subject to RoHS regulatory requirements.

The contact finish difference on the post (tin-lead versus tin) reflects manufacturing evolution within the same product family and does not affect interchangeability for board-to-board or cable connection applications.

Frequently Asked Questions (FAQ)

Q: Are the 0452801202 and 0452801252 mechanically interchangeable?

A: Yes. Both connectors share identical dimensions, pitch, row spacing, shrouding configuration, and mounting method. They are mechanically interchangeable in all board-to-board and cable applications.

Q: What is the primary difference between these two parts?

A: The 0452801202 is obsolete with RoHS non-compliant status, while the 0452801252 is active and ROHS3 compliant. The contact post finish differs (tin-lead versus tin), reflecting manufacturing updates within the same series.

Q: Can I use the 0452801252 in place of the 0452801202 in existing designs?

A: Yes. The 0452801252 is a direct substitute. No design modifications are required. The connector maintains all critical electrical and mechanical parameters necessary for compatibility.

Q: Does the contact finish difference affect performance?

A: No. Both tin-lead and tin post finishes are suitable for solder termination in through-hole applications. The difference reflects manufacturing process updates and does not impact electrical or mechanical performance.

Q: What packaging differences exist between these parts?

A: The 0452801202 packaging is not specified in the available data. The 0452801252 is supplied in Tray packaging. Confirm packaging requirements with your procurement specifications.

Q: Are there any compliance considerations when switching from 0452801202 to 0452801252?

A: Yes. If your application or end-market requires RoHS compliance, the 0452801252 is the appropriate choice due to its ROHS3 compliant status. The 0452801202 does not meet RoHS requirements.

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