Molex 0901210771 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0901210771 is an 11-position, right-angle rectangular connector header designed for through-hole mounting with 0.100" (2.54mm) pitch spacing. This connector operates in the C-Grid III 90121 series and features male pin contacts with gold-plated mating surfaces and tin-plated posts. The part is actively produced and widely used in automotive and general-purpose applications where board-to-board or cable interconnection is required.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements allow for alternative contact materials, insulation heights, or operating temperature ranges while maintaining core functional compatibility.

Substiute Parts

0901210771

MolexIn Stock: 7130901210771 Datasheet

Current PartRFQ

1-825437-1

TE Connectivity AMP ConnectorsIn Stock: 8831-825437-1 Datasheet

MFR RecommendedRFQ

PBC11SBAN

Sullins Connector SolutionsIn Stock: 1101PBC11SBAN Datasheet

MFR RecommendedRFQ

PEC11SBBN

Sullins Connector SolutionsIn Stock: 1417PEC11SBBN Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901210771 is determined by strict adherence to the following core parameters:

Critical Parameters (Must Match):

• Connector type: Header, Breakaway
• Contact type: Male Pin
• Pitch - Mating: 0.100" (2.54mm)
• Number of positions: 11
• Number of rows: 1
• Mounting type: Through Hole, Right Angle
• Termination: Solder
• Fastening type: Push-Pull
• Style: Board to Board or Cable
• Shrouding: Unshrouded
• Material Flammability Rating: UL94 V-0

Allowable Variations:

• Contact material: Brass or Phosphor Bronze
• Insulation material: Polyester Glass Filled or Polybutylene Terephthalate (PBT)
• Insulation height: 0.100" to 0.142" (2.54mm to 3.60mm)
• Contact length - Mating: 0.230" to 0.266" (5.84mm to 6.75mm)
• Contact length - Post: 0.100" to 0.126" (2.54mm to 3.20mm)
• Contact finish - Mating: Gold or Tin
• Operating temperature range: -65°C to 125°C
• Current rating: 3A to 5A
• RoHS compliance: ROHS3 or RoHS Compliant

All three substitute parts meet these criteria and are functionally interchangeable with the Molex 0901210771 in standard applications.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are actively produced and maintain full compliance with UL94 V-0 flammability standards and RoHS regulations, ensuring regulatory compatibility with the Molex 0901210771.

TE Connectivity 1-825437-1 provides the closest dimensional alignment to the original part, with contact lengths and insulation height within 0.002" to 0.042" of the Molex specification. This part operates across a -65°C to 105°C temperature range and supports 5A current rating. The AMPMODU Mod II series offers established compatibility in existing designs.

Sullins PBC11SBAN and Sullins PEC11SBBN both utilize Phosphor Bronze contacts instead of Brass, offering extended operating temperature capability to 125°C. The PBC11SBAN maintains contact geometry closer to the original part, while the PEC11SBBN features extended post length (0.200" vs. 0.114") suitable for applications requiring deeper PCB penetration. Both Sullins parts carry ROHS3 compliance and are available in higher inventory quantities.

Selection between these substitutes depends on specific application requirements: thermal environment, current demands, PCB thickness, and mating contact depth. All parts maintain the critical 0.100" (2.54mm) pitch and 11-position, single-row configuration essential for mechanical and electrical interchangeability.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-825437-1 be used as a direct replacement for the Molex 0901210771?

A: Yes. Both parts share identical pitch (0.100"), position count (11), row configuration (1), mounting type (through-hole right-angle), and fastening mechanism (push-pull). The TE part operates within -65°C to 105°C and supports 5A current, meeting standard application requirements. Minor dimensional variations in contact length and insulation height fall within allowable substitution parameters.

Q: What is the primary difference between the Sullins PBC11SBAN and PEC11SBBN?

A: The primary difference is contact post length. The PBC11SBAN features 0.100" (2.54mm) posts, while the PEC11SBBN provides 0.200" (5.08mm) posts. Both use Phosphor Bronze contacts and operate to 125°C. Selection depends on PCB thickness and required mating depth. Both maintain identical pitch, position count, and mounting configuration.

Q: Are there any temperature limitations when substituting these parts?

A: The Molex 0901210771 does not specify an operating temperature range. The TE Connectivity part operates to 105°C, while both Sullins parts operate to 125°C. For applications requiring operation above 105°C, the Sullins parts provide extended thermal capability. For standard room-temperature to moderate-temperature applications, all substitutes are suitable.

Q: Do all substitute parts meet RoHS compliance?

A: Yes. The TE Connectivity 1-825437-1 is RoHS Compliant. Both Sullins parts (PBC11SBAN and PEC11SBBN) are ROHS3 Compliant. All parts meet UL94 V-0 flammability standards. Regulatory compliance is maintained across all substitutes.

Q: What is the difference between Gold and Tin mating contact finishes?

A: The Molex 0901210771, TE Connectivity 1-825437-1, and Sullins PBC11SBAN feature Gold-plated mating contacts, providing superior corrosion resistance and lower contact resistance. The Sullins PEC11SBBN features Tin-plated mating contacts, which offer adequate performance in standard environments but with slightly higher contact resistance. Gold-plated contacts are preferred for critical applications or harsh environments.

Q: Can these connectors be used interchangeably in automotive applications?

A: Yes. All four parts are rated for automotive and general-purpose applications and maintain UL94 V-0 flammability compliance. The core mechanical and electrical parameters—pitch, position count, contact type, and mounting configuration—are identical, ensuring functional interchangeability in automotive interconnection designs.

Q: What is the significance of Phosphor Bronze versus Brass contact material?

A: Both materials are acceptable for this connector category. Brass contacts (Molex and TE Connectivity parts) provide standard performance. Phosphor Bronze contacts (Sullins parts) offer enhanced mechanical durability and extended operating temperature range to 125°C. Material selection does not affect pitch or position compatibility.