AT04-4P Equivalent & Substitute Parts

Part Overview

The AT04-4P is a 4-position rectangular connector housing manufactured by Amphenol Sine Systems Corp, classified as a receptacle with male pin contacts. This connector is designed for applications requiring free-hanging, in-line mounting with crimp termination and latch holder fastening. The part is currently active in production with 1,685 units in stock.

Substitute parts become necessary when the primary part experiences supply constraints, discontinuation, or when design requirements permit the use of alternative connector housings that maintain electrical and mechanical compatibility. The DT04-4P represents a direct functional alternative from TE Connectivity Deutsch Connectors, though it carries a discontinued status at DiGi Electronics.

Substiute Parts

AT04-4P

Amphenol Sine Systems CorpIn Stock: 1717AT04-4P Datasheet

Current PartRFQ

DT04-4P

TE Connectivity Deutsch ConnectorsIn Stock: 2276DT04-4P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT04-4P is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle
• Contact Type: Male Pin
• Number of Positions: 4
• Number of Rows: 2
• Mounting Type: Free Hanging (In-Line)
• Contact Termination: Crimp
• Fastening Type: Latch Holder
• Operating Temperature Range: -55°C ~ 125°C
• Moisture Sensitivity Level: 1 (Unlimited)
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

The DT04-4P from TE Connectivity Deutsch Connectors satisfies all mandatory matching parameters and qualifies as a direct substitute. Variations in insulation material (Polyamide/Nylon Glass Filled versus Thermoplastic) and the presence of additional IP68/IP6K9K ratings on the substitute part do not preclude substitution, as these represent enhanced or alternative material specifications within the same functional category.

Parameter Comparison

Engineering Selection Recommendations

AT04-4P (Primary Selection)

The AT04-4P is the recommended primary selection for new designs and procurement. This part maintains active product status with robust inventory availability (1,685 units in stock), ensuring supply chain continuity. Full ROHS3 compliance and REACH unaffected status satisfy regulatory requirements for industrial and commercial applications.

DT04-4P (Substitute Selection)

The DT04-4P qualifies as a functional equivalent when AT04-4P availability is constrained. This part satisfies all mandatory electrical and mechanical parameters. However, the discontinued status at DiGi Electronics indicates reduced long-term availability. The DT04-4P incorporates enhanced insulation material (Polyamide/Nylon Glass Filled) and IP68/IP6K9K ratings, which provide additional environmental protection suitable for applications requiring higher ingress protection levels. Current inventory of 2,200 units supports near-term substitution requirements.

Both parts maintain identical operating temperature ranges, termination methods, and regulatory compliance profiles, supporting direct substitution in applications where connector housing interchangeability is permitted by design specifications.

Frequently Asked Questions (FAQ)

Q: Can the DT04-4P directly replace the AT04-4P in existing assemblies?

A: Yes. Both parts share identical connector type (receptacle), contact type (male pin), position count (4), row configuration (2), mounting method (free hanging in-line), termination method (crimp), and fastening mechanism (latch holder). Operating temperature ranges and regulatory compliance are equivalent.

Q: What is the significance of the different insulation materials between these parts?

A: The AT04-4P uses Thermoplastic insulation, while the DT04-4P uses Polyamide (PA) Nylon Glass Filled insulation. Both materials satisfy the operating temperature range of -55°C to 125°C. The glass-filled polyamide in the DT04-4P provides enhanced mechanical strength and thermal stability. Material selection should align with specific application environmental requirements.

Q: Does the IP68/IP6K9K rating on the DT04-4P affect substitution compatibility?

A: No. The IP68/IP6K9K ratings on the DT04-4P represent enhanced environmental protection specifications. These ratings do not create incompatibility; rather, they indicate the substitute part offers additional ingress protection capabilities. Applications not requiring these ratings remain fully compatible.

Q: Are contacts included with either part?

A: No. Both the AT04-4P and DT04-4P are connector housings only. Contacts must be procured separately and are not included with either part.

Q: What is the current availability status of each part?

A: The AT04-4P is active in production with 1,685 units in stock. The DT04-4P is discontinued at DiGi Electronics with 2,200 units currently available. For long-term supply assurance, the AT04-4P is the preferred selection.

Q: Do both parts comply with RoHS and REACH regulations?

A: Yes. Both the AT04-4P and DT04-4P are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for industrial and commercial applications in regulated markets.