3M 929700-01-28 Equivalent & Substitute Parts

Part Overview

The 3M 929700-01-28 is a rectangular connector header designed for through-hole mounting applications. This 28-position, single-row connector operates at 0.100" (2.54mm) pitch and is rated for 2.5A continuous current with an operating temperature range of -40°C to 105°C. The part is currently active in production status. Identification of equivalent and substitute parts becomes necessary when addressing inventory constraints, supply chain disruptions, or when design requirements permit functional alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

929700-01-28

3MIn Stock: 938929700-01-28 Datasheet

Current PartRFQ

4-103321-0

TE Connectivity AMP ConnectorsIn Stock: 10234-103321-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for rectangular connector headers is determined by the following critical parameters:

• Pitch - Mating: 0.100" (2.54mm) — must match exactly for PCB compatibility
• Contact Type: Male Pin — determines mating interface
• Mounting Type: Through Hole — establishes board integration method
• Termination: Solder — specifies connection technique
• Material Flammability Rating: UL94 V-0 — ensures safety compliance
• Operating Temperature Range: must encompass or exceed -40°C to 105°C
• Current Rating: must meet or exceed 2.5A

The substitute part 4-103321-0 (TE Connectivity AMP Connectors) shares the same pitch, contact type, mounting method, termination, and flammability rating. However, this part differs in position count (40 vs. 28), insulation height (0.090" vs. 0.100"), contact length specifications, and current rating (3A vs. 2.5A). These differences indicate that direct one-to-one substitution is not supported by the provided parameters.

Parameter Comparison

Engineering Selection Recommendations

The 3M 929700-01-28 is an active product with current manufacturing support. The TE Connectivity 4-103321-0 is classified as obsolete, indicating discontinued production and limited availability for new designs.

From a compliance perspective, the 3M part is RoHS non-compliant, while the TE Connectivity part has not applicable RoHS status due to its obsolete classification. Both parts carry UL94 V-0 flammability certification and share identical contact geometry for mating surfaces.

The critical distinction lies in position count: the 3M part provides 28 positions while the TE Connectivity substitute provides 40 positions. This difference precludes direct substitution in applications where the 28-position configuration is a design requirement. Additionally, the TE Connectivity part exhibits a lower insulation height (0.090" vs. 0.100"), which may affect board layout and clearance considerations.

For new designs, the active status of the 3M 929700-01-28 ensures long-term supply availability and continued manufacturing support. The TE Connectivity 4-103321-0 should be considered only in legacy system maintenance scenarios where the 40-position configuration is acceptable and inventory is available.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 4-103321-0 be used as a direct replacement for the 3M 929700-01-28?

A: No. While both connectors share the same 0.100" (2.54mm) pitch, contact type, and mounting method, the TE Connectivity part has 40 positions compared to 28 positions in the 3M part. This difference makes direct substitution incompatible with designs requiring exactly 28 positions.

Q: What are the key parameters that determine connector substitutability?

A: Substitution eligibility is determined by: mating pitch (0.100" / 2.54mm), contact type (male pin), mounting method (through hole), termination technique (solder), and flammability rating (UL94 V-0). Position count, insulation height, and contact post length are application-specific parameters that must align with design requirements.

Q: Why is the TE Connectivity part listed as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production. This classification affects long-term availability and may limit sourcing options for new applications. The 3M 929700-01-28 maintains active status with ongoing production support.

Q: Are there compliance differences between these parts?

A: The 3M part is RoHS non-compliant, while the TE Connectivity part has not applicable RoHS status due to obsolescence. Both parts meet UL94 V-0 flammability requirements. For applications requiring RoHS compliance, neither part is suitable.

Q: What is the significance of the insulation height difference?

A: The 3M part has 0.100" (2.54mm) insulation height while the TE Connectivity part has 0.090" (2.29mm). This 0.010" difference may affect PCB layout, component spacing, and clearance calculations. Design verification is necessary if substitution is considered.

Q: Can the higher current rating of the TE Connectivity part (3A vs. 2.5A) be advantageous?

A: The TE Connectivity part's 3A rating exceeds the 3M part's 2.5A specification. However, this advantage is negated by the position count mismatch and obsolete status. Current rating alone does not justify substitution when other critical parameters diverge.