Eaton SMS3SE3K9 Plastic Rectangular Connector - IP30

Part Number: SMS3SE3K9
Manufacturer
Eaton
Part number
SMS3SE3K9

Quick Summary

Eaton SMS3SE3K9 is a quick-mating plastic rectangular connector for compact PCB-to-board and front-mount panel applications. Design teams often struggle with space constraints, mating reliability, and inventory complexity in harsh industrial environments. This connector delivers RoHS, REACH, and UL94 V0 flammability ratings with IP30 protection, making it suitable for automotive controls and rugged machinery panels. Its 3-position layout and gold-plated PCB contacts support tight routing and low contact resistance over time. The front-mount receptacle design simplifies assembly, while the loaded contact option reduces downtime by ensuring ready-to-wire deployment.

Product Information

Extended Description

SMS3SE3K9 Eaton: Straight boardmount with short PCB female contacts (Gold & Tin plating); SMS3SE3K9
Product Name
Eaton Souriau SMS series quick mating plastic rectangular connector
Catalog Number
SMS3SE3K9
Product Length/Depth
13.4 mm
Product Height
16.2 mm
Product Width
5.9 mm
Product Weight
2.5 g
Environmental conditions
RoHS Flammability rating UL94 V0 REACH
Connector accessory option
No backshell possibility
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact plating
Gold
Contact type
PCB
Coupling type
Push-Pull
Degree of protection
IP30
Layout
3
Shell material
Plastic
Operating temperature - max
125 °C
Operating temperature - min
-55 °C
Receptacle type
Front Mount Panel
Number Of Contacts
3
Number of cavity #16
3
Feature: 3-position, 3 cavities provide compact, organized wiring that fits narrow control panels. Business Impact: Enables smaller enclosures and reduced harness length, lowering overall system cost. Application: Ideal for dense 12-24 VDC control circuits in industrial automation. Feature: Push-Pull coupling offers quick, secure mating with repeatable reliability. Business Impact: Decreases installation time and maintenance effort while maintaining high mating integrity in vibration-prone environments. Application: On assembly lines and mobile equipment where fast field service is critical. Feature: Gold-plated PCB contacts minimize contact resistance and corrosion over the life of the product. Business Impact: Extends connector life, reduces maintenance cycles, and improves signal integrity in harsh factories. Application: High-reliability control logic and sensor networks in automation systems. Feature: Front Mount Panel receptacle and loaded contact delivery streamline wiring and reduce assembly steps. Business Impact: Cut installation time, minimize error-prone hand-wiring, and simplify spare parts management. Application: Panel-mounted junctions and PCB-to-panel harness assemblies in machinery. Feature: RoHS, REACH, and UL94 V0 compliance with IP30 protection ensure regulatory alignment and safe operation. Business Impact: Lowers risk of regulatory penalties and supports certification-ready builds. Application: Industrial control panels, automotive interfaces, and equipment housings where safety and sustainability matter. Additional context: The SMS series remains compatible with straight boardmount configurations and 3-contact payloads, delivering a cost-effective, space-saving solution for compact automation projects. The plastic shell keeps weight low and supports economical production without compromising performance in typical factory environments.

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FAQs

SMS3SE3K9 is a front-mount panel receptacle with a 3-contact configuration and loaded contacts, making it ideal for front-panel wiring. It also supports straight boardmount configurations with PCB contacts, enabling flexible integration into compact control panels. The design excludes backshell accessory options, simplifying inventory and installation steps.
The connector offers 3 positions and 3 cavities, with a depth of 13.4 mm, height of 16.2 mm, and width of 5.9 mm. It uses gold-plated PCB contacts, is IP30 rated, and operates from -55 °C to 125 °C. The coupling type is Push-Pull, and it is a receptacle with front-mount panel compatibility.
Yes. It carries RoHS and REACH compliance, UL94 V0 flammability rating, and an IP30 protection class, making it appropriate for rugged automation panels and automotive-style control interfaces where reliability and safety are critical.
The SMS3SE3K9 adheres to RoHS and REACH requirements and UL94 V0 flammability. Its IP30 rating provides a baseline level of protection for general-purpose industrial use, while the front-mount panel design supports compliant, compact assemblies.
The 3-contact, gold-plated PCB configuration reduces contact resistance and improves longevity, while the front-mount receptacle and loaded contacts shorten wiring time. The Push-Pull coupling enables quick mating, lowering service time and reducing field failure exposure in automation environments.