Molex 0901310800 Rectangular Connector Header 80-Position 2.54mm

Part Overview

The Molex 0901310800 is a vertical rectangular connector header with 80 positions at 2.54mm pitch, designed for through-hole board-to-cable applications. This C-Grid III 90131 series component features male pins with gold-plated mating contacts and tin-plated posts, suitable for general purpose and automotive applications. The part is currently active in production with 957 units in stock.

Equivalent and substitute parts are necessary when the original Molex component becomes unavailable, when design requirements shift toward alternative manufacturers, or when specific compliance certifications (such as RoHS status) must be met for new production runs.

Key Parameters

Parameter	Value
Manufacturer Part Number	0901310800
Manufacturer	Molex
Series	C-Grid III 90131
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	80
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Brass
Insulation Material	Polyester, Glass Filled
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901310800 is determined by strict alignment of the following critical parameters:

Primary Matching Criteria:

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 80
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header with male pins
Mounting Type: Through Hole
Termination: Solder
Contact Shape: Square
Fastening Type: Push-Pull

Secondary Compatibility Parameters:

Contact Length - Mating: 0.266" (6.75mm) nominal
Contact Length - Post: 0.114" (2.90mm) nominal
Insulation Height: 0.098" (2.50mm) nominal
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Moisture Sensitivity Level: 1 (Unlimited)

Substitute parts must maintain compatibility across all primary criteria. Variations in contact finish materials (gold vs. tin), contact material composition (brass vs. copper alloy), insulation material type (polyester vs. thermoplastic vs. liquid crystal polymer), and post finish composition are permissible when the mating interface and mechanical envelope remain functionally equivalent. Product status transitions from Active to Obsolete do not preclude substitution when electrical and mechanical parameters align.

Parameter Comparison

Parameter	Molex 0901310800	3M 2380-6221-TG	TE 4-102973-0	TE 4-102977-0	TE 4-103186-0	TE 4-103322-2	TE 4-146251-0	TE 4-87227-0
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)	0.100" (2.54mm)
Number of Positions	80	80	80	80	80	80	80	80
Number of Rows	2	2	2	2	2	2	2	2
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)	0.100" (2.54mm)
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Connector Type	Header, Breakaway	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Tin	Gold	Gold
Contact Finish - Post	Tin	Tin-Lead	Tin-Lead	Tin-Lead	Tin-Lead	Tin	Tin-Lead	Gold
Contact Material	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy	Phosphor Bronze
Insulation Material	Polyester, Glass Filled	Thermoplastic, Glass Filled	Thermoplastic	Thermoplastic	Thermoplastic	Thermoplastic	Liquid Crystal Polymer (LCP)	Thermoplastic
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black
Current Rating (Amps)	Not specified	3A	3A	3A	3A	3A	3A	3A
Operating Temperature	Not specified	-55°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C	-65°C ~ 105°C
RoHS Status	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	Not applicable	RoHS non-compliant	RoHS Compliant	RoHS non-compliant	Not applicable
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Obsolete	Obsolete	Obsolete	Obsolete	Obsolete	Active

Engineering Selection Recommendations

Active Production Status: TE Connectivity 4-87227-0 and 3M 2380-6221-TG maintain active product status alongside the Molex 0901310800. These parts are recommended for new designs requiring long-term supply chain stability and manufacturer support.

RoHS Compliance Alignment: The Molex 0901310800 carries ROHS3 Compliant certification. TE Connectivity 4-103322-2 is the only substitute part with RoHS Compliant status. This part is mandatory for applications subject to RoHS3 regulatory requirements in the European Union and equivalent jurisdictions.

Obsolete Part Considerations: TE Connectivity AMPMODU Mod II series parts (4-102973-0, 4-102977-0, 4-103186-0, 4-146251-0, 4-146252-0, 4-146253-0) are designated Obsolete. These parts remain electrically and mechanically compatible but carry elevated supply risk. Inventory availability is documented; however, long-term sourcing cannot be guaranteed.

Contact Finish and Material Variations: All substitute parts maintain gold-plated mating contacts except TE 4-103322-2, which features tin-plated mating contacts. Post finishes vary between tin, tin-lead, and gold formulations. These variations do not affect mechanical mating or electrical performance in standard applications.

Insulation Material Differences: The Molex part uses polyester with glass filler. Substitute parts employ thermoplastic or liquid crystal polymer (LCP) insulation. All materials meet UL94 V-0 flammability requirements. LCP-based parts (TE 4-146251-0, 4-146252-0, 4-146253-0) offer superior dimensional stability and moisture resistance.

Frequently Asked Questions (FAQ)

Q: Can TE Connectivity 4-103322-2 be used as a direct replacement for Molex 0901310800?

A: Yes. Both parts share identical pitch (0.100"), position count (80), row configuration (2 rows), and mounting method (through-hole solder). The TE part features tin-plated mating contacts versus gold on the Molex part, and thermoplastic insulation versus polyester. These differences do not affect mechanical or electrical compatibility. The TE part carries RoHS Compliant certification, making it suitable for regulated applications.

Q: What is the difference between Active and Obsolete product status?

A: Active parts are in current production with ongoing manufacturer support and guaranteed long-term availability. Obsolete parts are no longer manufactured but may remain available through existing inventory. Obsolete parts carry supply risk and should not be specified for new designs unless inventory commitments are secured.

Q: Are the TE AMPMODU Mod II series parts interchangeable with the Molex C-Grid III 90131?

A: Yes, within the constraints of the specified parameters. All AMPMODU Mod II parts listed maintain the required 0.100" pitch, 80-position, 2-row configuration with through-hole solder termination. Mechanical envelope and electrical performance are equivalent. However, most AMPMODU parts are Obsolete; verify inventory availability before design commitment.

Q: Does the contact material difference (brass vs. copper alloy) affect performance?

A: No. Both brass and copper alloy contacts meet the electrical and mechanical requirements for this connector class. Contact finish (gold or tin plating) provides the primary corrosion resistance and conductivity. Material composition differences do not impact mating force, current-carrying capacity, or reliability in standard applications.

Q: Which substitute part should be selected for new automotive designs?

A: TE Connectivity 4-87227-0 is recommended. It maintains Active product status, meets UL94 V-0 flammability requirements, carries a 3A current rating, and operates across -65°C to 105°C. The part is specified for general purpose applications and is suitable for automotive environments. Verify compliance with specific automotive qualification standards (AEC-Q, ISO 16750) as required by the vehicle manufacturer.

Q: Is the 3M 2380-6221-TG suitable for applications requiring RoHS compliance?

A: No. The 3M part carries RoHS non-compliant status. For applications subject to RoHS3 regulations, specify TE Connectivity 4-103322-2 (RoHS Compliant) or the original Molex 0901310800 (ROHS3 Compliant).

Q: What is the significance of Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture control. All listed parts carry MSL 1 rating, meaning they do not require desiccant packaging or controlled humidity storage. This simplifies inventory management and reduces handling costs.

Q: Can obsolete TE parts be used in production if inventory is available?

A: Obsolete parts may be used in production if adequate inventory is secured and documented. However, design specifications should transition to Active parts (TE 4-87227-0 or 3M 2380-6221-TG) for long-term manufacturing continuity. Obsolete parts are appropriate for repair, maintenance, or limited-run applications only.

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