AT04-3P-MM03 Equivalent & Substitute Parts Reference

Part Overview

The AT04-3P-MM03 is a 3-position rectangular connector housing manufactured by Amphenol Sine Systems Corp, classified within the AT Series™ product line. This receptacle housing is designed for wire gauges 14-20 AWG and operates across an industrial temperature range of -55°C to 125°C. The part is currently Active in product status with 732 units in stock inventory.

Substitute parts are identified when equivalent functional performance can be achieved through alternative manufacturers while maintaining critical electrical and mechanical compatibility parameters. The AT04-3P-MM03 operates as a housing component; contacts are supplied separately.

Substiute Parts

AT04-3P-MM03

Amphenol Sine Systems CorpIn Stock: 779AT04-3P-MM03 Datasheet

Current PartRFQ

DT04-3P-CE04

TE Connectivity Deutsch ConnectorsIn Stock: 1124DT04-3P-CE04 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT04-3P-MM03 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Number of Positions: 3 positions (fixed requirement)
• Operating Temperature Range: -55°C ~ 125°C (must match or exceed)
• Regulatory Compliance: ROHS3 Compliant and REACH Unaffected status
• Connector Category: Rectangular Connectors

Secondary Compatibility Considerations:

• Insulation Material composition (thermoplastic or equivalent polymeric materials)
• Moisture Sensitivity Level classification
• Product Status (Active preferred for ongoing availability)

The substitute part DT04-3P-CE04 meets these criteria through equivalent operating temperature range, matching position count, and identical regulatory compliance certifications. Variations in row configuration, contact termination method, and fastening type do not preclude substitution when the core functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (AT04-3P-MM03): Select the AT04-3P-MM03 when Amphenol Sine Systems Corp sourcing is required or when the specific single-row configuration is mandated by system design. This part maintains Active product status with established supply chain availability (732 units in stock). Full ROHS3 compliance and REACH Unaffected status confirm regulatory alignment for industrial applications.

Substitute Part Selection (DT04-3P-CE04): The DT04-3P-CE04 serves as a functional equivalent when TE Connectivity Deutsch Connectors supply chain is preferred or when enhanced environmental protection features (IP68, IP6K9K ratings) are required. This substitute maintains identical operating temperature specifications and regulatory certifications. The two-row configuration and integrated latch holder fastening represent design variations that do not compromise core substitution eligibility. Inventory availability is higher (1061 units in stock).

Compliance Verification: Both parts satisfy ROHS3 Compliant and REACH Unaffected requirements, confirming suitability for regulated markets. MSL ratings differ (1 versus Not Applicable), reflecting different moisture sensitivity classifications appropriate to respective product designs.

Frequently Asked Questions (FAQ)

Q: Can DT04-3P-CE04 directly replace AT04-3P-MM03 in existing assemblies?

A: Substitution is valid when the 3-position count and -55°C to 125°C operating range are the primary functional requirements. The DT04-3P-CE04 differs in row configuration (2 rows versus 1 row) and includes integrated fastening features. Physical form factor compatibility must be verified against specific PCB or harness mounting requirements before implementation.

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

A: The AT04-3P-MM03 uses a single-row layout, while the DT04-3P-CE04 employs a two-row configuration. This affects physical dimensions and mounting footprint. System design specifications must confirm that the two-row housing is mechanically compatible with the intended application space and connector interface.

Q: Are contacts included with these housing parts?

A: No. Both the AT04-3P-MM03 and DT04-3P-CE04 are housing components supplied without contacts. Contacts must be sourced separately and selected based on wire gauge (14-20 AWG for the primary part) and termination method (crimp termination specified for the substitute).

Q: How do the insulation materials compare?

A: The AT04-3P-MM03 uses thermoplastic insulation, while the DT04-3P-CE04 specifies polyamide (PA) nylon with glass reinforcement. Both are thermoplastic polymers suitable for the -55°C to 125°C temperature range. The glass-filled nylon in the substitute provides enhanced mechanical strength and thermal stability.

Q: What do the IP68 and IP6K9K ratings on the substitute part indicate?

A: These are environmental protection classifications. IP68 indicates dust-tight and water-immersion protection. IP6K9K specifies high-pressure water jet resistance. These features are specified for the DT04-3P-CE04 but not listed for the AT04-3P-MM03, representing an enhanced capability in the substitute part.

Q: Are both parts suitable for the same temperature applications?

A: Yes. Both parts operate across the identical -55°C to 125°C range, confirming thermal compatibility for equivalent industrial applications.

Q: What packaging differences exist between these parts?

A: The AT04-3P-MM03 packaging is not specified in available data. The DT04-3P-CE04 is supplied in Bulk packaging. Packaging format should be confirmed with suppliers based on procurement volume requirements.