Würth Elektronik 61303611021 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 61303611021 is a rectangular connector header designed for through-hole, right-angle mounting applications. This connector features 36 positions at 0.100" (2.54mm) pitch with male pin contacts and solder termination. The component is classified as Active product status and serves board-to-board or cable interconnection requirements in general-purpose and specialized applications. Equivalent substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within specified parameter tolerances.

Substiute Parts

61303611021

Würth ElektronikIn Stock: 124661303611021 Datasheet

Current PartRFQ

0022288360

MolexIn Stock: 109680022288360 Datasheet

MFR RecommendedRFQ

0022288362

MolexIn Stock: 67900022288362 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Würth Elektronik 61303611021 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Primary Matching Criteria:

• Connector type (Header)
• Contact type (Male Pin)
• Pitch specification (0.100" / 2.54mm)
• Position count (36 positions)
• Row configuration (1 row)
• Mounting style (Through Hole, Right Angle)
• Termination method (Solder)
• Fastening type (Push-Pull)
• Contact shape (Square)
• Flammability rating (UL94 V-0)

The Molex KK254 series parts 0022288360 and 0022288362 satisfy all primary matching criteria. Both substitute parts maintain identical pitch, position count, mounting configuration, and termination specifications. Variations in contact finish (Tin vs. Gold) and insulation material composition (glass-filled polyamide vs. standard polyamide) represent acceptable parameter differences within the rectangular connector category for equivalent substitution.

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and full compliance with ROHS3 and REACH regulations. The Würth Elektronik 61303611021 features gold mating contact finish, while Molex 0022288360 provides tin finish and Molex 0022288362 provides gold finish. Contact finish selection depends on application-specific corrosion resistance and solderability requirements.

Minor dimensional variations exist in contact length and insulation height between the Würth part and Molex substitutes. The Würth 61303611021 specifies 0.236" (6.00mm) mating contact length and 0.100" (2.54mm) insulation height, while both Molex parts specify 0.244" (6.20mm) mating contact length and 0.098" (2.50mm) insulation height. These dimensional differences fall within acceptable tolerance ranges for 2.54mm pitch connector systems and do not affect functional compatibility in standard board-to-board applications.

Insulation material composition differs between the Würth part (PA6T polyamide) and Molex substitutes (glass-filled polyamide). Both material specifications achieve UL94 V-0 flammability rating and are suitable for equivalent thermal and mechanical performance in the specified operating temperature range of -40°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can Molex 0022288360 and 0022288362 be used interchangeably with Würth Elektronik 61303611021?

A: Yes. Both Molex parts satisfy all primary matching criteria including pitch, position count, mounting configuration, and termination method. The primary difference is contact finish: 0022288360 features tin finish while 0022288362 features gold finish. Selection between these options depends on application solderability and corrosion resistance requirements.

Q: What is the significance of the contact finish difference between the three parts?

A: The Würth 61303611021 and Molex 0022288362 both feature gold mating contact finish, providing enhanced corrosion resistance and solderability. Molex 0022288360 features tin finish, which is suitable for general-purpose applications but may require different soldering parameters. Contact finish selection should align with PCB surface finish and assembly process specifications.

Q: Are there dimensional compatibility concerns when substituting these parts?

A: Minor dimensional variations exist in contact length and insulation height. The Würth part specifies 0.236" mating contact length versus 0.244" for Molex parts, and 0.100" insulation height versus 0.098" for Molex parts. These differences are within acceptable tolerance ranges for 2.54mm pitch connector systems and do not affect functional compatibility in standard applications.

Q: Do all three parts meet the same regulatory and compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and rated UL94 V-0 for flammability. All maintain Active product status and are suitable for equivalent regulatory compliance in applications requiring these certifications.

Q: What is the difference between standard polyamide and glass-filled polyamide insulation material?

A: The Würth part uses PA6T polyamide while Molex substitutes use glass-filled polyamide. Both materials achieve identical UL94 V-0 flammability rating and operate within the specified -40°C to 125°C temperature range. Glass-filled polyamide provides enhanced mechanical strength and dimensional stability, while PA6T offers standard performance characteristics. Both are functionally equivalent for this connector application.

Q: Are current and voltage ratings specified for all substitute parts?

A: The Würth 61303611021 specifies 3A current rating and 250V voltage rating. The Molex substitute parts do not provide explicit current and voltage ratings in their specifications. For applications requiring specific electrical performance verification, consult manufacturer datasheets or contact technical support for Molex KK254 series electrical specifications.