AT06-4S-YEL Equivalent & Substitute Parts

Part Overview

The AT06-4S-YEL is a 4-position rectangular connector plug housing manufactured by Amphenol Sine Systems Corp, part of the AT Series™ product line. This sealed, thermoplastic connector housing features female socket contacts with crimp termination and latch lock fastening, designed for free-hanging in-line mounting applications. The connector operates across a temperature range of -55°C to 125°C and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when specific color coding requirements differ from the primary specification, when inventory availability requires alternative sourcing, or when packaging format (Box versus Bulk) must be accommodated within system design constraints.

Key Parameters

Parameter	Value
Manufacturer Part Number	AT06-4S-YEL
Manufacturer	Amphenol Sine Systems Corp
Category	Rectangular Connectors
Series	AT Series™
Connector Type	Plug
Number of Positions	4
Number of Rows	2
Contact Type	Female Socket
Contact Termination	Crimp
Fastening Type	Latch Lock
Mounting Type	Free Hanging (In-Line)
Insulation Material	Thermoplastic
Features	Sealed
Operating Temperature Range	-55°C ~ 125°C
Color	Yellow
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the AT06-4S-YEL is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Parameters:

Connector Type: Plug
Number of Positions: 4
Number of Rows: 2
Contact Type: Female Socket
Contact Termination: Crimp
Fastening Type: Latch Lock

Mechanical Compatibility Parameters:

Mounting Type: Free Hanging (In-Line)
Insulation Material: Thermoplastic
Features: Sealed
Operating Temperature Range: -55°C ~ 125°C

Regulatory & Environmental Parameters:

RoHS Status: ROHS3 Compliant
MSL Rating: 1 (Unlimited)
REACH Status: REACH Unaffected
Product Status: Active

All substitute parts listed maintain identical electrical and mechanical specifications. Substitution is permitted based on color variation and packaging format differences. The base product number AT06-4S remains constant across all variants, confirming functional interchangeability.

Parameter Comparison

Part Number	Color	Packaging	Inventory (Pcs)	Connector Type	Positions	Rows	Contact Type	Termination	Fastening	Mounting	Material	Features	Temp Range	RoHS	MSL
AT06-4S-YEL	Yellow	Box	1633	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S	Gray	Bulk	15077	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-BLU	Blue	Box	1100	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-BRN	Brown	Box	1788	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-GRN	Green	Box	2153	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-ORG	Orange	Box	1520	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-RED	Red	Box	2757	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1
AT06-4S-WHT	White	Box	1675	Plug	4	2	Female Socket	Crimp	Latch Lock	Free Hanging (In-Line)	Thermoplastic	Sealed	-55°C ~ 125°C	ROHS3	1

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the AT06-4S-YEL. Selection between equivalent parts is determined by application-specific requirements:

Color-Based Selection: The AT06-4S-YEL is functionally identical to AT06-4S-WHT, AT06-4S-BLU, AT06-4S-BRN, AT06-4S-GRN, AT06-4S-ORG, and AT06-4S-RED. Color differentiation serves circuit identification and wiring harness organization purposes only and does not affect electrical performance or mechanical interface.

Packaging Format: The AT06-4S (Gray, Bulk packaging) provides equivalent functionality with higher inventory availability (15,077 pieces) compared to the boxed variants. Bulk packaging selection is appropriate for high-volume production environments where individual unit packaging is not required.

Regulatory Compliance: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1). All parts are Active product status, ensuring continued manufacturer support and availability.

Inventory Considerations: Part availability varies across color options. The AT06-4S (Gray, Bulk) offers the highest stock level. Selection of alternative colors should account for current inventory levels and supply chain lead times.

Frequently Asked Questions (FAQ)

Q: Can AT06-4S-YEL be replaced with AT06-4S-WHT or other color variants?

A: Yes. All color variants of the AT06-4S series maintain identical electrical and mechanical specifications. Substitution is functionally valid. Color selection is determined by circuit identification requirements or wiring harness organization standards, not by electrical compatibility.

Q: What is the difference between AT06-4S (Bulk, Gray) and AT06-4S-YEL (Box, Yellow)?

A: The primary differences are color (Gray versus Yellow) and packaging format (Bulk versus Box). Electrical and mechanical specifications are identical. The Bulk variant offers higher inventory availability and is suitable for high-volume applications where individual unit packaging is not required.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Can I use AT06-4S-YEL in applications requiring a different color connector?

A: Yes, provided the application does not specify color as a functional requirement. All color variants are electrically and mechanically interchangeable. Color coding serves identification and organization purposes only.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical temperature range of -55°C to 125°C, ensuring thermal compatibility across all variants.

Q: Are contacts included with these connector housings?

A: No. All AT06-4S series connector housings are supplied without contacts. Contacts must be sourced separately and crimped into the housing according to application requirements.

Q: Which substitute part has the highest inventory availability?

A: The AT06-4S (Gray, Bulk packaging) has the highest inventory level at 15,077 pieces, compared to boxed variants ranging from 1,100 to 2,757 pieces.

Q: Is the MSL rating identical across all substitute parts?

A: Yes. All substitute parts maintain MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.

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