Molex 0010897403 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0010897403 is a vertical rectangular connector header designed for through-hole mounting applications. This 40-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-board and cable interconnection requirements across automotive, medical, telecommunications, and general-purpose applications. The part is active in production with 1032 units in current inventory. Substitute parts are identified to address supply chain continuity, specific mechanical requirements, or performance characteristics that may better suit particular application constraints.

Key Parameters

Parameter	Value
Manufacturer Part Number	0010897403
Manufacturer	Molex
Series	C-Grid 70280
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	40
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0010897403 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria (Non-Negotiable):

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 40
Number of Rows: 2
Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Style: Board to Board or Cable
Shrouding: Unshrouded
Number of Positions Loaded: All

Secondary Compatibility Parameters (Allowable Variation):

Contact Length - Mating: Variation permitted within mechanical envelope constraints
Contact Length - Post: Variation permitted based on PCB thickness accommodation
Overall Contact Length: Variation permitted within assembly space limits
Insulation Height: Variation permitted within board clearance requirements
Contact Finish - Mating: Gold finish required for signal integrity
Contact Finish - Post: Gold or Tin acceptable based on soldering process
Contact Material: Copper Alloy or Phosphor Bronze acceptable
Insulation Material: LCP or Thermoplastic acceptable
Material Flammability Rating: UL94 V-0 required
RoHS Status: ROHS3 or RoHS Compliant acceptable
MSL: Level 1 required

All six identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the Molex 0010897403 in standard applications.

Parameter Comparison

Parameter	Molex 0010897403	TE Connectivity 2-87227-0	Hirose A1-40PA-2.54DSA(71)	Samtec MTLW-120-08-G-D-280	Samtec MTLW-120-08-G-D-300	Samtec MTLW-120-08-L-D-315	Samtec MTLW-120-24-S-D-305
Manufacturer	Molex	TE Connectivity AMP Connectors	Hirose Electric Co Ltd	Samtec Inc.	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	C-Grid 70280	AMPMODU Mod II	A1	Flex Stack, MTLW	Flex Stack, MTLW	Flex Stack, MTLW	Flex Stack, MTLW
Number of Positions	40	40	40	40	40	40	40
Number of Rows	2	2	2	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.320" (8.13mm)	0.318" (8.08mm)	0.236" (6.00mm)	0.280" (7.11mm)	0.300" (7.62mm)	0.315" (8.00mm)	0.305" (7.75mm)
Contact Length - Post	0.110" (2.79mm)	0.125" (3.18mm)	0.118" (3.00mm)	0.190" (4.83mm)	0.170" (4.32mm)	0.155" (3.94mm)	0.115" (2.92mm)
Overall Contact Length	0.520" (13.21mm)	0.533" (14.65mm)	0.454" (11.54mm)	0.530" (13.46mm)	0.530" (13.46mm)	0.530" (13.46mm)	0.480" (12.19mm)
Insulation Height	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.060" (1.52mm)	0.060" (1.52mm)	0.060" (1.52mm)	0.060" (1.52mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Finish - Post	Tin	Gold	Tin	Gold	Gold	Tin	Tin
Contact Material	Copper Alloy	Phosphor Bronze	Brass	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	LCP, Glass Filled	Thermoplastic	PBT	LCP	LCP	LCP	LCP
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	Not specified	-65°C ~ 105°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating (Amps)	Not specified	3A	3A	5.2A per Contact	5.2A per Contact	5.2A per Contact	5.2A per Contact
RoHS Status	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active
Inventory (Pcs)	1032	815	813	755	661	665	785

Engineering Selection Recommendations

All substitute parts listed maintain active product status and full compliance with RoHS3 or RoHS standards. Selection between the Molex 0010897403 and its substitutes should be based on the following engineering considerations:

TE Connectivity 2-87227-0: Offers equivalent mechanical compatibility with operating temperature range of -65°C to 105°C and 3A current rating. Thermoplastic insulation material provides alternative to LCP. Suitable for general-purpose and automotive applications requiring moderate temperature performance.

Hirose A1-40PA-2.54DSA(71): Provides the most compact overall contact length at 0.454" (11.54mm) with 200V voltage rating specification. Operating temperature range of -55°C to 85°C and 3A current rating. PBT insulation material offers alternative polymer selection. Tray packaging differs from bulk packaging of primary part. Suitable for space-constrained applications.

Samtec MTLW Series (MTLW-120-08-G-D-280, MTLW-120-08-G-D-300, MTLW-120-08-L-D-315, MTLW-120-24-S-D-305): All four variants provide extended operating temperature range of -55°C to 125°C and higher current rating of 5.2A per contact. LCP insulation material matches primary part specification. Contact length variations accommodate different PCB thicknesses and assembly requirements. Gold post finish variants (MTLW-120-08-G-D-280, MTLW-120-08-G-D-300) provide enhanced solderability. Tin post finish variants (MTLW-120-08-L-D-315, MTLW-120-24-S-D-305) match primary part post finish specification. Suitable for high-reliability applications and environments requiring extended temperature performance.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the Molex 0010897403?

A: Yes. All listed substitute parts meet the critical electrical and mechanical parameters: 40-position, 2-row configuration with 0.100" (2.54mm) pitch, through-hole solder termination, push-pull fastening, and unshrouded design. Variations in contact length, insulation height, and material composition remain within acceptable substitution parameters for standard board-to-board and cable interconnection applications.

Q: What are the key differences between the Molex part and Samtec MTLW variants?

A: The primary differences are contact length specifications and operating temperature range. Samtec MTLW parts provide -55°C to 125°C operating range compared to unspecified range for Molex, and higher current rating of 5.2A per contact. Contact length variations (0.280", 0.300", 0.315", 0.305") accommodate different PCB thicknesses. Insulation height is reduced to 0.060" on Samtec parts versus 0.090" on Molex, affecting board clearance requirements.

Q: How do packaging differences affect substitution?

A: The Molex 0010897403 and most substitutes are supplied in bulk packaging. The Hirose A1-40PA-2.54DSA(71) is supplied in tray packaging. Packaging format does not affect electrical or mechanical compatibility; it impacts only handling, storage, and logistics procedures during component procurement and assembly.

Q: Which substitute part offers the best thermal performance?

A: The Samtec MTLW series (all four variants) provides the highest operating temperature range at -55°C to 125°C, compared to -65°C to 105°C for TE Connectivity and -55°C to 85°C for Hirose. Selection should align with specific application thermal requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts are either ROHS3 Compliant or RoHS Compliant, meeting regulatory requirements for restricted substances. The Molex 0010897403 is ROHS3 Compliant.

Q: What is the significance of contact finish variations (Gold vs. Tin)?

A: Contact finish on mating surfaces is gold across all parts, ensuring consistent signal integrity and corrosion resistance. Post finish variations (gold or tin) affect soldering characteristics. Gold post finish provides enhanced solderability and oxidation resistance. Tin post finish matches the Molex primary part specification and is suitable for standard wave or reflow soldering processes.

Q: Which substitute provides the lowest profile for space-constrained designs?

A: The Hirose A1-40PA-2.54DSA(71) offers the most compact overall contact length at 0.454" (11.54mm) and insulation height of 0.100" (2.54mm), making it suitable for applications with strict height limitations.

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