AT04-3P-YEL Equivalent & Substitute Parts

Part Overview

The AT04-3P-YEL is a 3-position rectangular connector receptacle housing manufactured by Amphenol Sine Systems Corp as part of the AT Series™ product line. This connector housing is designed for free-hanging, in-line applications with crimp contact termination and latch holder fastening. The yellow housing variant is currently active and available with 882 pieces in stock.

Substitute parts are necessary when specific color coding requirements differ from the primary yellow specification, while maintaining identical electrical and mechanical functionality across the AT Series™ connector housing family.

Key Parameters

Parameter	Value
Manufacturer	Amphenol Sine Systems Corp
Series	AT Series™
Category	Rectangular Connectors
Connector Type	Receptacle
Contact Type	Male Pin
Number of Positions	3
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
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
REACH Status	REACH Unaffected
Packaging	Box

Substitute Part Grouping Explanation

Substitute parts within the AT04-3P family are determined by color variants of the connector housing. All substitute parts share identical electrical and mechanical specifications with the main part AT04-3P-YEL:

Key Parameters for Substitution:

Base Product Number: AT04-3P
Connector Type: Receptacle
Number of Positions: 3
Number of Rows: 2
Mounting Type: Free Hanging (In-Line)
Contact Termination: Crimp
Fastening Type: Latch Holder
Operating Temperature Range: -55°C ~ 125°C
Insulation Material: Thermoplastic
Features: Sealed
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

The only variable parameter across the substitute family is the housing color. All variants are manufactured by Amphenol Sine Systems Corp and belong to the AT Series™ product line. Color selection does not affect electrical performance, mechanical compatibility, or environmental ratings.

Parameter Comparison

Part Number	Color	Connector Type	Positions	Rows	Mounting Type	Termination	Fastening Type	Operating Temperature	Insulation Material	Features	RoHS Status	Inventory (Pcs)
AT04-3P-YEL	Yellow	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	882
AT04-3P-BLU	Blue	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	1045
AT04-3P-BRN	Brown	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	887
AT04-3P-GRN	Green	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	1776
AT04-3P-ORG	Orange	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	792
AT04-3P-RED	Red	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	1614
AT04-3P-WHT	White	Receptacle	3	2	Free Hanging (In-Line)	Crimp	Latch Holder	-55°C ~ 125°C	Thermoplastic	Sealed	ROHS3 Compliant	828

Engineering Selection Recommendations

All substitute parts listed are active products manufactured by Amphenol Sine Systems Corp and maintain full compliance with ROHS3 and REACH requirements. Each variant is packaged in boxes and carries identical electrical and mechanical specifications.

Selection between AT04-3P color variants should be based on application-specific color coding requirements. All variants operate across the identical temperature range of -55°C to 125°C and feature sealed thermoplastic housings with crimp termination and latch holder fastening.

Inventory availability varies across color options, with AT04-3P-GRN currently showing the highest stock level at 1776 pieces, while AT04-3P-ORG shows the lowest at 792 pieces. All variants are suitable for direct substitution where color coding is the only differentiating factor.

Frequently Asked Questions (FAQ)

Q: Can AT04-3P color variants be used interchangeably in the same application?

A: Yes. All AT04-3P color variants share identical electrical and mechanical specifications. Substitution is valid when color coding requirements are the only difference between design specifications.

Q: Does housing color affect the connector's electrical performance?

A: No. Housing color is a cosmetic and identification feature only. All electrical characteristics, including contact type, termination method, and operating temperature range, remain identical across all color variants.

Q: Are contacts included with these connector housings?

A: No. All AT04-3P variants are housings only. Contacts must be sourced separately and are not included with the housing purchase.

Q: What is the significance of the 2-row configuration in a 3-position connector?

A: The 3-position, 2-row configuration defines the physical arrangement of contact positions within the housing. This mechanical layout is consistent across all AT04-3P color variants.

Q: Are all AT04-3P variants suitable for sealed applications?

A: Yes. All variants feature sealed housing design, providing protection against environmental contamination.

Q: What is the Moisture Sensitivity Level (MSL) rating for these connectors?

A: All AT04-3P variants carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these connectors be used in temperature-critical applications?

A: Yes. All variants operate across the temperature range of -55°C to 125°C, suitable for both high and low temperature environments within this specification.

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