AT16-18PC-EKSR02 Equivalent & Substitute Parts

Part Overview

The AT16-18PC-EKSR02 is an 18-position rectangular connector receptacle housing manufactured by Amphenol Sine Systems Corp. This component belongs to the AT Series™ family and is classified as a free-hanging, in-line receptacle with crimp termination and latch holder fastening. The housing features sealed construction with strain relief and thermoplastic insulation material rated for -55°C to 125°C operation.

Substitute parts are necessary when the original green housing color is unavailable or when alternative connector variants within the same electrical and mechanical specifications are required for procurement flexibility, inventory management, or design standardization across product lines.

Key Parameters

Parameter	Value
Manufacturer	Amphenol Sine Systems Corp
Series	AT Series™
Base Product Number	AT16
Connector Type	Receptacle
Contact Type	Male Pin
Number of Positions	18
Number of Rows	3
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Holder
Features	Sealed, Strain Relief
Insulation Material	Thermoplastic
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)
REACH Status	REACH Unaffected
Product Status	Active

Substitute Part Grouping Explanation

All substitute parts listed for AT16-18PC-EKSR02 maintain identical electrical and mechanical specifications across the following critical parameters:

Connector Configuration: 18-position receptacle with 3-row arrangement
Contact Interface: Male pin contact type with crimp termination
Mechanical Mounting: Free-hanging, in-line configuration with latch holder fastening
Environmental Protection: Sealed housing with strain relief
Material Composition: Thermoplastic insulation
Thermal Performance: -55°C to 125°C operating temperature range
Regulatory Compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The substitute parts differ only in housing color designation (identified by the alphanumeric suffix in the part number). This color variation does not affect electrical performance, mechanical compatibility, or thermal characteristics. All substitutes are manufactured by the same supplier and share the same base product number (AT16), confirming functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Connector Type	Positions	Rows	Contact Type	Termination	Fastening	Mounting	Features	Insulation Material	Operating Temperature	RoHS Status	MSL	Product Status
AT16-18PC-EKSR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active
AT16-18PA-SR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active
AT16-18PB-SR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active
AT16-18PC-SR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active
AT16-18PD-SR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active
AT16-18PE-SR02	Amphenol Sine Systems Corp	Receptacle	18	3	Male Pin	Crimp	Latch Holder	Free Hanging (In-Line)	Sealed, Strain Relief	Thermoplastic	-55°C ~ 125°C	ROHS3 Compliant	1	Active

Engineering Selection Recommendations

All substitute parts listed are Active products manufactured by Amphenol Sine Systems Corp and maintain full compliance with ROHS3 and REACH regulatory requirements. Each substitute part carries identical electrical specifications, mechanical interface dimensions, and thermal operating characteristics as the primary part AT16-18PC-EKSR02.

Selection among substitute parts should be based on:

Inventory Availability: Substitute parts maintain varying stock levels. AT16-18PC-SR02 maintains the highest inventory at 2,147 pieces, while AT16-18PB-SR02 maintains 867 pieces.
Regulatory Compliance: All parts share identical RoHS and REACH compliance status, ensuring equivalent environmental and safety certification across all options.
Moisture Sensitivity: All parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.
Product Lifecycle Status: All substitute parts maintain Active product status, confirming ongoing manufacturer support and availability.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts electrically equivalent to AT16-18PC-EKSR02?

A: Yes. All substitute parts maintain identical contact type (male pin), number of positions (18), row configuration (3 rows), termination method (crimp), and fastening mechanism (latch holder). Electrical performance and signal integrity are equivalent across all listed substitutes.

Q: What is the primary difference between AT16-18PC-EKSR02 and its substitutes?

A: The primary difference is the housing color designation. AT16-18PC-EKSR02 features a green housing, while substitute parts feature alternative color designations. This color variation does not affect mechanical compatibility, electrical performance, or thermal characteristics.

Q: Can substitute parts be used interchangeably in existing designs?

A: Yes. All substitute parts share identical mechanical mounting interfaces (free-hanging, in-line configuration), contact termination specifications (crimp), and fastening mechanisms (latch holder). Physical dimensions and mating interfaces are equivalent, enabling direct substitution.

Q: Are there any thermal performance differences between the main part and substitutes?

A: No. All parts, including AT16-18PC-EKSR02 and all substitutes, operate across the identical temperature range of -55°C to 125°C with thermoplastic insulation material.

Q: Do all parts require the same contact specifications?

A: Yes. All parts are 18-position receptacles with male pin contacts and crimp termination. Contacts are not included with any housing variant and must be sourced separately to match the specified termination method.

Q: What is the significance of the MSL Rating 1 designation?

A: MSL Rating 1 (Unlimited) indicates that these components have no moisture sensitivity limitations. Storage and handling do not require special humidity-controlled environments, and parts can be used immediately upon receipt without baking or conditioning procedures.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts, including AT16-18PC-EKSR02, AT16-18PA-SR02, AT16-18PB-SR02, AT16-18PC-SR02, AT16-18PD-SR02, and AT16-18PE-SR02, maintain full ROHS3 compliance and REACH Unaffected status.

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