AT04-3P Equivalent & Substitute Parts

Part Overview

The AT04-3P is a 3-position rectangular connector receptacle housing manufactured by Amphenol Sine Systems Corp. This connector is designed for applications requiring free-hanging, in-line mounting with crimp termination and latch holder fastening. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when inventory constraints, lead time requirements, or specific application features necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

AT04-3P

Amphenol Sine Systems CorpIn Stock: 3962AT04-3P Datasheet

Current PartRFQ

DT04-3P

TE Connectivity Deutsch ConnectorsIn Stock: 2459DT04-3P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The DT04-3P from TE Connectivity Deutsch Connectors qualifies as a substitute for the AT04-3P based on the following alignment of critical parameters:

Matching Parameters:

• Connector Type: Receptacle
• Contact Type: Male Pin
• Number of Positions: 3
• Mounting Type: Free Hanging (In-Line)
• Contact Termination: Crimp
• Fastening Type: Latch Holder
• Color: Gray
• Operating Temperature Range: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Differing Parameters:

• Number of Rows: AT04-3P has 1 row; DT04-3P has 2 rows
• Insulation Material: AT04-3P uses Thermoplastic; DT04-3P uses Polyamide (PA), Nylon, Glass Filled
• Features: DT04-3P includes IP68 and IP6K9K ratings; AT04-3P has no specified features

The DT04-3P substitution is valid for applications where the 2-row configuration and enhanced environmental protection ratings (IP68, IP6K9K) are compatible with or beneficial to the intended use case.

Parameter Comparison

Engineering Selection Recommendations

Both the AT04-3P and DT04-3P are Active product status components with full regulatory compliance under RoHS3 and REACH unaffected designations. Selection between these parts is determined by application-specific requirements:

AT04-3P Selection Criteria:

• Applications requiring 1-row configuration
• Thermoplastic insulation material specification
• Standard environmental protection requirements
• Primary inventory availability (3900 units in stock)

DT04-3P Selection Criteria:

• Applications compatible with 2-row configuration
• Enhanced environmental protection required (IP68, IP6K9K ratings)
• Glass-filled polyamide insulation material compatibility
• Alternative sourcing for lead time or supply chain optimization

Both parts support identical operating temperature ranges (-55°C ~ 125°C), crimp termination, and latch holder fastening. The substitution is valid when mechanical layout and environmental protection requirements align with the DT04-3P specifications.

Frequently Asked Questions (FAQ)

Q: Can the DT04-3P directly replace the AT04-3P in all applications?

A: The DT04-3P qualifies as a substitute when the 2-row configuration and IP68/IP6K9K environmental protection ratings are compatible with the application design. The 1-row configuration of the AT04-3P cannot be replicated by the DT04-3P; therefore, applications with strict 1-row layout requirements must use the AT04-3P.

Q: What is the significance of the row configuration difference?

A: The AT04-3P has 1 row of 3 positions, while the DT04-3P has 2 rows of 3 positions. This affects the physical footprint and mating interface geometry. Connector housings and mating plugs must be compatible with the specific row configuration.

Q: Are the insulation materials interchangeable?

A: The AT04-3P uses Thermoplastic insulation, while the DT04-3P uses Polyamide (PA), Nylon, Glass Filled insulation. Both materials operate within the same temperature range (-55°C ~ 125°C). Material selection depends on application requirements for chemical resistance, mechanical strength, and environmental exposure.

Q: Do both parts support the same contact termination method?

A: Yes. Both the AT04-3P and DT04-3P use crimp termination for contact attachment. Crimp tooling and contact specifications must be verified against the specific connector series documentation.

Q: What does the "Contacts Not Included" note mean?

A: Both the AT04-3P and DT04-3P are connector housings only. Male pin contacts must be sourced separately and are not included with the housing purchase. Contact part numbers are determined by the specific series and wire gauge requirements.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the AT04-3P and DT04-3P are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for restricted substances in electrical and electronic equipment.

Q: What are the IP68 and IP6K9K ratings on the DT04-3P?

A: IP68 indicates protection against dust ingress and temporary immersion in water. IP6K9K indicates protection against high-pressure water jets. These ratings are specific to the DT04-3P and provide enhanced environmental protection compared to the AT04-3P, which has no specified environmental protection features.