AT04-4P-BRN Equivalent & Substitute Parts

Part Overview

The AT04-4P-BRN is a 4-position rectangular connector receptacle housing manufactured by Amphenol Sine Systems Corp in the AT Series™. This component is a receptacle housing designed for male pin contacts with crimp termination and latch holder fastening. The part is actively produced and stocked with 1929 units available in new original condition.

Substitute parts are necessary when specific color coding requirements differ from the primary specification, when inventory availability fluctuates, or when system design requires color-coded connector identification for circuit tracing and assembly documentation purposes.

Key Parameters

Parameter	Value
Manufacturer Part Number	AT04-4P-BRN
Manufacturer	Amphenol Sine Systems Corp
Series	AT Series™
Category	Rectangular Connectors
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
Color	Brown
Features	Sealed
Insulation Material	Thermoplastic
Operating Temperature Range	-55°C ~ 125°C
Product Status	Active
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS Code	8538.90.6000
Packaging	Box
Base Product Number	AT04-4P

Substitute Part Grouping Explanation

All substitute parts for the AT04-4P-BRN share the identical base product number AT04-4P and differ only in color designation. Substitution is valid when the following parameters remain constant across all equivalent parts:

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
Features: Sealed
Insulation Material: Thermoplastic
Operating Temperature Range: -55°C ~ 125°C
Product Status: Active
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
REACH Status: REACH Unaffected
ECCN: EAR99
HTSUS Code: 8538.90.6000
Packaging: Box

The only variable parameter across the substitute family is color. All parts are manufactured by Amphenol Sine Systems Corp within the AT Series™ and maintain functional and electrical equivalence.

Parameter Comparison

Part Number	Color	Connector Type	Positions	Rows	Termination	Fastening	Operating Temp	RoHS Status	Inventory (Pcs)
AT04-4P-BRN	Brown	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1929
AT04-4P-BLU	Blue	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1657
AT04-4P-GRN	Green	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1913
AT04-4P-ORG	Orange	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1619
AT04-4P-RED	Red	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1354
AT04-4P-WHT	White	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1202
AT04-4P-YEL	Yellow	Receptacle	4	2	Crimp	Latch Holder	-55°C ~ 125°C	ROHS3 Compliant	1065

Engineering Selection Recommendations

All substitute parts listed maintain active product status with Amphenol Sine Systems Corp and carry ROHS3 compliance certification. Each part is REACH Unaffected and classified under ECCN EAR99 with identical HTSUS coding (8538.90.6000).

Selection between AT04-4P-BRN and its color-variant substitutes should be based on:

System Design Requirements: Color coding serves as a visual identifier for circuit tracing, assembly documentation, and field maintenance. Select the color variant that matches the documented system specification.
Inventory Availability: Current stock levels vary across the color family. AT04-4P-BRN maintains the highest inventory at 1929 units, while AT04-4P-YEL has the lowest at 1065 units.
Compliance Continuity: All parts maintain identical regulatory compliance profiles, ensuring no additional qualification or testing is required when substituting between color variants.
Functional Equivalence: The sealed thermoplastic housing, crimp termination method, and latch holder fastening mechanism are identical across all variants, ensuring mechanical and electrical compatibility with mating connectors and contact sets.

Frequently Asked Questions (FAQ)

Q: Can AT04-4P-BRN be directly replaced with AT04-4P-BLU in an existing assembly?

A: Yes. Both parts share identical electrical and mechanical specifications. The only difference is the housing color. Replacement is valid provided the system design does not require specific color coding for circuit identification or assembly tracing.

Q: Are contacts included with these rectangular connector housings?

A: No. All parts in this family are housings only. Contacts are not included and must be sourced separately. The part note specifies "Contacts Not Included."

Q: What is the significance of the base product number AT04-4P?

A: The base product number AT04-4P identifies the core connector housing design. The suffix (BRN, BLU, GRN, ORG, RED, WHT, YEL) designates the color variant. All variants share the same base design and are functionally equivalent.

Q: Do all substitute parts have the same operating temperature range?

A: Yes. All parts in the AT04-4P family operate across the identical temperature range of -55°C to 125°C, ensuring thermal compatibility across all color variants.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. This applies uniformly across all substitute parts.

Q: Are there any differences in RoHS or REACH compliance between color variants?

A: No. All parts maintain ROHS3 compliance and REACH Unaffected status. Regulatory compliance is identical across the entire AT04-4P color family.

Q: Can I use AT04-4P-GRN as a substitute if my design specifies AT04-4P-BRN?

A: Functionally and electrically, yes. However, if the design specification includes color coding for circuit identification, assembly documentation, or field maintenance procedures, the specified color should be used to maintain system integrity and traceability.

Q: What is the difference between "Receptacle" and "Male Pin" designation?

A: The connector type "Receptacle" refers to the housing configuration. The contact type "Male Pin" indicates the internal contact gender. This part is a receptacle housing designed to accept male pin contacts through crimp termination.

Q: Are all substitute parts packaged identically?

A: Yes. All parts are supplied in Box packaging, ensuring consistent handling and storage requirements across the entire substitute family.

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