TE Connectivity 1-104432-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 1-104432-4 is a rectangular connector header manufactured under the AMPMODU Mod II series. This through-hole connector features 28 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing, designed for board-to-board or cable applications. The connector utilizes male pin contacts with gold-plated mating surfaces and tin-lead plated posts for solder termination.

The 1-104432-4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production and repair requirements for legacy systems utilizing this connector specification.

Substiute Parts

1-104432-4

TE Connectivity AMP ConnectorsIn Stock: 12831-104432-4 Datasheet

Current PartRFQ

78548-128

Amphenol ICC (FCI)In Stock: 123278548-128 Datasheet

SimilarRFQ

78548-228H

Amphenol ICC (FCI)In Stock: 82878548-228H Datasheet

SimilarRFQ

892-18-028-10-002101

Preci-DipIn Stock: 1118892-18-028-10-002101 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1-104432-4 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 28
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Fastening Type: Push-Pull
• Contact Shape: Square
• Style: Board to Board or Cable

Acceptable Variation Parameters:

• Contact Material: Copper Alloy, Phosphor Bronze, or Brass
• Contact Finish - Mating: Gold or Gold, GXT™
• Insulation Material: Thermoplastic, Polycyclohexylenedimethylene Terephthalate (PCT), or Polyamide (PA)
• Termination: Press-Fit, Solder, or Kinked Pin with Solder
• Product Status: Active or Obsolete
• Operating Temperature Range: Must encompass or exceed the application requirements
• Current Rating: Must meet or exceed 3A
• Voltage Rating: Must meet or exceed 30VAC

Three substitute parts meet these criteria and are listed as direct equivalents for the 1-104432-4.

Parameter Comparison

Engineering Selection Recommendations

Amphenol ICC 78548-128 and 78548-228H (BERGSTIK® II Series)

Both Amphenol ICC parts are active products with current manufacturing support. The 78548-128 and 78548-228H are functionally equivalent to the 1-104432-4 across all critical mating and mechanical parameters. Both maintain the same 28-position, 2-row configuration with 0.100" pitch spacing and push-pull fastening. The primary difference between these two Amphenol options is the contact finish thickness on the mating surface: 78548-128 provides 30.0µin (0.76µm) gold plating, matching the original specification, while 78548-228H provides 15.0µin (0.38µm) gold plating with PCT insulation material.

Both Amphenol parts are RoHS non-compliant, consistent with the original 1-104432-4. Current and voltage ratings are not specified for these parts; applications requiring verification of electrical performance characteristics should reference manufacturer datasheets.

Preci-Dip 892-18-028-10-002101 (892 Series)

The Preci-Dip 892-18-028-10-002101 is an active product offering ROHS3 compliance, providing an alternative for applications with RoHS requirements. This part maintains identical mechanical and mating parameters to the 1-104432-4. The 892-18-028-10-002101 specifies a 3A current rating and 150VDC voltage rating, exceeding the original 30VAC specification. Operating temperature range extends to -55°C ~ 125°C, providing broader thermal coverage than the original -65°C ~ 105°C range.

Contact finish thickness on the mating surface is 10.0µin (0.25µm), lower than the original specification. Brass contact material and polyamide insulation differ from the original copper alloy and thermoplastic materials.

Selection Criteria Summary

For direct replacement in legacy systems without RoHS requirements, the Amphenol ICC 78548-128 provides the closest electrical and material specification match to the 1-104432-4. For applications requiring RoHS3 compliance, the Preci-Dip 892-18-028-10-002101 is the appropriate selection, with verification that the extended operating temperature range and higher voltage rating are compatible with the application.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 78548-128 directly replace the TE Connectivity 1-104432-4?

A: Yes. Both connectors share identical mating pitch (0.100"), position count (28), row configuration (2 rows), row spacing (0.100"), contact type (male pin), mounting method (through hole), and fastening mechanism (push-pull). Physical and electrical compatibility is established through these matching parameters. The 78548-128 maintains the same 30.0µin gold plating thickness on mating contacts as the original part.

Q: What is the difference between Amphenol ICC 78548-128 and 78548-228H?

A: Both parts are mechanically and electrically equivalent with identical position count, pitch, and row spacing. The primary difference is contact finish thickness: 78548-128 provides 30.0µin (0.76µm) gold plating, while 78548-228H provides 15.0µin (0.38µm) gold plating. Additionally, 78548-228H specifies polycyclohexylenedimethylene terephthalate (PCT) insulation material, while 78548-128 does not specify insulation material. For applications sensitive to contact resistance or wear characteristics, the thicker gold plating of 78548-128 is preferred.

Q: Is the Preci-Dip 892-18-028-10-002101 suitable for all applications using the 1-104432-4?

A: The Preci-Dip part maintains mechanical compatibility through identical pitch, position count, and row spacing. However, material differences exist: brass contacts and polyamide insulation replace the original copper alloy and thermoplastic materials. Contact finish thickness is reduced to 10.0µin (0.25µm). The part offers ROHS3 compliance and extended operating temperature range (-55°C ~ 125°C versus -65°C ~ 105°C). Applications requiring the original material specifications or contact finish thickness should use Amphenol ICC alternatives.

Q: What does RoHS compliance status mean for connector selection?

A: RoHS non-compliant parts (1-104432-4, 78548-128, 78548-228H) contain materials or finishes restricted under RoHS directives. ROHS3 compliant parts (892-18-028-10-002101) meet current RoHS3 standards. Selection depends on regulatory requirements for the end application. Legacy systems may continue using RoHS non-compliant components; new designs or applications subject to RoHS regulations require compliant alternatives.

Q: Are current and voltage ratings critical for substitution?

A: Yes. The original 1-104432-4 specifies 3A current rating and 30VAC voltage rating. Amphenol ICC parts do not specify these ratings; applications requiring electrical performance verification should obtain manufacturer datasheets. The Preci-Dip 892-18-028-10-002101 specifies 3A and 150VDC, exceeding the original requirements. For applications operating at or near the original electrical limits, parts with specified ratings meeting or exceeding these values are required.

Q: What is the significance of contact finish thickness differences?

A: Contact finish thickness affects contact resistance, wear resistance, and service life. The original 1-104432-4 specifies 30.0µin (0.76µm) gold plating on mating contacts. Amphenol ICC 78548-128 matches this specification. The 78548-228H provides 15.0µin (0.38µm), and Preci-Dip 892-18-028-10-002101 provides 10.0µin (0.25µm). Thicker plating generally provides superior contact durability and lower contact resistance. Applications with high cycle counts or stringent contact resistance requirements should prioritize parts with thicker gold plating.

Q: Can these connectors be used interchangeably in existing PCB designs?

A: Yes, provided the PCB footprint accommodates the connector's physical dimensions. All four parts share identical mating pitch (0.100"), position count (28), and row spacing (0.100"). Variations in overall contact length and insulation height exist but do not affect PCB footprint compatibility for standard through-hole mounting. Verify that post length and termination method (solder versus kinked pin) are compatible with the PCB design and assembly process.

Q: What is Moisture Sensitivity Level (MSL) and why is it relevant?

A: MSL indicates the connector's sensitivity to moisture absorption during storage and handling. All four parts specify MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors can be stored and handled without special humidity control or baking procedures prior to assembly.