3M 929834-01-21 Equivalent & Substitute Parts

Part Overview

The 3M 929834-01-21 is a rectangular connector header designed for through-hole mounting applications. This 21-position, single-row connector operates at 2.54mm pitch and is rated for 2.5A continuous current across an operating temperature range of -40°C to 105°C. The connector features tin-lead plated copper alloy contacts with a square profile and is constructed from glass-filled polybutylene terephthalate (PBT) insulation material. The product maintains Active status within the 3M 929 series. Identifying equivalent substitute parts becomes necessary when addressing component availability, supply chain constraints, or design flexibility requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

929834-01-21

3MIn Stock: 779929834-01-21 Datasheet

Current PartRFQ

4-103327-0

TE Connectivity AMP ConnectorsIn Stock: 33704-103327-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part identification for the 3M 929834-01-21 is based on the following critical parameters that define functional and mechanical compatibility:

Primary Compatibility Criteria:

• Pitch - Mating: 0.100" (2.54mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Contact Material: Copper Alloy
• Contact Finish: Tin-Lead
• Connector Type: Header, Breakaway
• Material Flammability Rating: UL94 V-0

Secondary Consideration Parameters:

• Operating Temperature Range
• Current Rating
• Number of Positions
• Insulation Material composition

The substitute part TE Connectivity AMP Connectors 4-103327-0 shares the core electrical and mechanical characteristics required for functional substitution, including identical pitch spacing, contact type, mounting methodology, and termination approach. However, this substitute differs in position count (40 positions versus 21 positions) and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 4-103327-0 functions as an electrical and mechanical substitute for the 3M 929834-01-21 based on matching pitch spacing, contact configuration, mounting methodology, and termination approach. Both connectors maintain UL94 V-0 flammability certification and utilize tin-lead contact finishes on copper alloy substrates.

Selection considerations include the following:

Product Status: The 3M 929834-01-21 maintains Active product status, ensuring ongoing manufacturer support and availability. The TE Connectivity 4-103327-0 is classified as Obsolete, indicating discontinued production and potential supply limitations.

Position Count Variance: The substitute part provides 40 positions compared to the 21-position configuration of the main part. Applications requiring exactly 21 positions may necessitate selective loading or custom configuration of the 40-position substitute.

Operating Temperature Range: The TE Connectivity substitute extends the lower operating temperature limit to -65°C, compared to -40°C for the 3M connector, providing enhanced performance in colder environments.

Current Rating: The substitute part supports 3A continuous current, exceeding the 2.5A rating of the main part, allowing for higher current applications without derating.

Compliance Status: The 3M connector is RoHS non-compliant, while the TE Connectivity part carries Not applicable status. Design requirements mandating RoHS compliance may necessitate alternative sourcing.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 4-103327-0 directly replace the 3M 929834-01-21 in existing designs?

A: Direct replacement is possible from an electrical and mechanical standpoint due to matching pitch spacing (2.54mm), contact type (male pin), mounting methodology (through hole), and termination approach (solder). However, the 40-position configuration of the substitute differs from the 21-position main part. Applications must accommodate this position count difference through selective loading or circuit board redesign.

Q: What are the critical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: pitch spacing (0.100" / 2.54mm), contact type (male pin), connector type (header breakaway), mounting type (through hole), termination method (solder), contact material (copper alloy), and contact finish (tin-lead). Deviations in these parameters eliminate substitution viability.

Q: Does the TE Connectivity substitute meet the same flammability standards?

A: Yes. Both the 3M 929834-01-21 and TE Connectivity 4-103327-0 maintain UL94 V-0 material flammability certification, ensuring equivalent fire performance characteristics.

Q: Are there temperature range differences between these connectors?

A: The TE Connectivity substitute operates across -65°C to 105°C, while the 3M connector operates across -40°C to 105°C. The substitute provides extended low-temperature capability, making it suitable for applications requiring operation below -40°C.

Q: What is the significance of the product status difference?

A: The 3M 929834-01-21 maintains Active status, ensuring continued manufacturer production, technical support, and supply availability. The TE Connectivity 4-103327-0 is Obsolete, indicating discontinued production. Active status parts are preferred for new designs and long-term production requirements.

Q: How do the current ratings compare?

A: The 3M connector is rated for 2.5A continuous current, while the TE Connectivity substitute supports 3A. The substitute provides higher current capacity, allowing use in applications requiring current levels between 2.5A and 3A without component derating.

Q: What packaging format is available for both connectors?

A: Both connectors are supplied in Bulk packaging format, suitable for high-volume manufacturing and assembly operations.