Molex 0010891801 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0010891801 is a through-hole rectangular connector header with 80 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement. The part features unshrouded male pin contacts with gold-plated mating surfaces and tin-plated posts, suitable for board-to-board or cable applications across automotive, medical, telecommunications, and general-purpose industries.

Substiute Parts

0010891801

MolexIn Stock: 9220010891801 Datasheet

Current PartRFQ

2380-6121TG

3MIn Stock: 32252380-6121TG Datasheet

MFR RecommendedRFQ

4-103186-0

TE Connectivity AMP ConnectorsIn Stock: 1263394-103186-0 Datasheet

MFR RecommendedRFQ

4-87545-0

TE Connectivity AMP ConnectorsIn Stock: 11584-87545-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0010891801 is determined by the following critical parameters:

• Position Count & Row Configuration: 80 positions in 2 rows (mandatory match)
• Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing (mandatory match)
• Connector Type: Header configuration with male pin contacts (mandatory match)
• Mounting & Termination: Through-hole solder termination (mandatory match)
• Contact Finish: Gold-plated mating surface with tin-based post finish (acceptable variation in finish thickness and post material composition)
• Insulation Material: Polyester or thermoplastic glass-filled compounds (acceptable variation)
• Fastening Type: Push-pull mechanism (mandatory match)
• Shrouding: Unshrouded configuration (mandatory match)

The three substitute parts listed below satisfy these core electrical and mechanical compatibility criteria. Variations in contact length, insulation height, and operating temperature ranges do not preclude functional substitution when the above parameters align.

Parameter Comparison

Engineering Selection Recommendations

3M 2380-6121TG (Active Status)

The 3M 2380-6121TG is the primary recommended substitute. It maintains active product status, ensuring long-term availability and manufacturer support. All critical electrical and mechanical parameters align with the Molex 0010891801. The part carries UL94 V-0 flammability certification and operates across -55°C to 105°C. Current rating is specified at 3A. RoHS non-compliance status matches the original part, eliminating regulatory transition concerns for legacy designs. REACH status is listed as affected, requiring compliance verification for new applications.

TE Connectivity 4-87545-0 (Active Status, RoHS3 Compliant)

The TE Connectivity 4-87545-0 offers active product status with ROHS3 compliance, making it suitable for designs requiring modern environmental standards. All core position, pitch, and connector type specifications match the original. Contact length and insulation height differ from the Molex part, requiring PCB layout verification. Flammability rating and operating temperature range are not specified for this variant. This part is optimal for new designs or redesigns where RoHS3 compliance is mandatory.

TE Connectivity 4-103186-0 (Obsolete Status)

The TE Connectivity 4-103186-0 shares obsolete product status with the original Molex part. While electrically and mechanically compatible, its obsolescence status provides no long-term procurement advantage. This part is suitable only for short-term replacement scenarios or when existing inventory is available. Operating temperature range extends to -65°C, providing broader thermal capability than the original.

Frequently Asked Questions (FAQ)

Q: Can I use these substitute parts interchangeably with the Molex 0010891801 on existing PCBs?

A: Substitution requires verification of contact length and insulation height compatibility with your PCB design. The Molex 0010891801 specifies contact length of 0.240" (6.10mm) and insulation height of 0.090" (2.29mm). The 3M 2380-6121TG has contact length of 0.230" (5.84mm) and insulation height of 0.100" (2.54mm). The TE Connectivity 4-103186-0 matches the insulation height at 0.090" (2.29mm) with contact length of 0.230" (5.84mm). The TE Connectivity 4-87545-0 has significantly longer contacts at 0.608" (15.44mm), which may not be compatible with standard PCB designs. Measure your PCB mounting holes and clearances before substitution.

Q: What is the difference between the two TE Connectivity options?

A: The 4-103186-0 is obsolete with higher inventory availability (126,300 pcs), while the 4-87545-0 is active with lower inventory (1,142 pcs). The 4-87545-0 is RoHS3 compliant, whereas the 4-103186-0 is RoHS non-compliant. The 4-87545-0 has significantly longer contact posts (0.318" vs. 0.120"), making it unsuitable for standard PCB applications. The 4-103186-0 is the more practical TE option for direct replacement.

Q: Are there compliance differences I should consider?

A: The Molex 0010891801 and TE Connectivity 4-103186-0 are RoHS non-compliant. The 3M 2380-6121TG is also RoHS non-compliant but has REACH affected status. The TE Connectivity 4-87545-0 is ROHS3 compliant, making it the only option for applications requiring modern environmental compliance. All parts carry EAR99 export classification and share the same HTSUS code (8536.69.4040).

Q: What is the impact of contact finish differences?

A: The Molex 0010891801 uses tin-plated posts (74.8µin thickness). The 3M 2380-6121TG and TE Connectivity 4-103186-0 use tin-lead plating (100.0µin thickness), providing enhanced corrosion resistance and solderability. The TE Connectivity 4-87545-0 does not specify post finish. All parts use gold-plated mating surfaces with varying thickness (10.0µin to 30.0µin), which does not affect electrical performance within standard connector applications.

Q: Which substitute offers the best long-term availability?

A: The 3M 2380-6121TG is the recommended choice for long-term availability, with active product status and 3,118 pcs in current inventory. The TE Connectivity 4-87545-0 is also active but has lower inventory (1,142 pcs). Both obsolete options (Molex original and TE 4-103186-0) should not be relied upon for future procurement.