SM04B-SRSS-TB(LF)(SN)

The SM04B-SRSS-TB(LF)(SN) is a specific type of connector manufactured by JST (Japan Solderless Terminal), a well-known company in the field of electronic connectors. Here’s a detailed description of this connector:

General Overview

The SM04B-SRSS-TB(LF)(SN) is a 4-position, surface-mount connector designed for reliable electrical connections in various electronic applications. It is part of JST's SM series, which is known for its compact design and versatility in use.

Physical Characteristics

• Type: This connector is a wire-to-board type, meaning it is designed to connect wires to a printed circuit board (PCB).
• Number of Contacts: It features 4 contacts, allowing for the connection of multiple wires.
• Pitch: The connector has a pitch (the distance between the centers of adjacent contacts) of 2.0 mm, which is standard for many compact electronic applications.
• Mounting Style: It is a surface-mount device (SMD), which means it is designed to be mounted directly onto the surface of a PCB, facilitating automated assembly processes.
• Material: The housing is typically made from a durable plastic material that provides insulation and protection for the internal contacts. The contacts themselves are usually made from a conductive metal, often plated with nickel or tin for enhanced conductivity and corrosion resistance.

Electrical Characteristics

• Current Rating: The connector is rated for a specific current capacity, typically around 2A per contact, making it suitable for low to moderate power applications.
• Voltage Rating: It can handle a voltage rating of up to 250V, which is adequate for many electronic devices.
• Contact Resistance: The contact resistance is low, ensuring efficient electrical performance and minimal power loss.

Features

• LF (Lead-Free): The designation (LF) indicates that the connector is lead-free, complying with environmental regulations such as RoHS (Restriction of Hazardous Substances).
• SN (Tin-Plated): The (SN) suffix signifies that the contacts are tin-plated, which enhances their resistance to oxidation and improves solderability.
• Locking Mechanism: The connector may feature a locking mechanism to ensure a secure connection, preventing accidental disconnection during operation.

Applications

The SM04B-SRSS-TB(LF)(SN) connector is commonly used in various applications, including:

• Consumer electronics (e.g., audio devices, home appliances)
• Automotive electronics
• Industrial equipment
• Telecommunications devices

Summary

In summary, the SM04B-SRSS-TB(LF)(SN) from JST is a compact, reliable, and versatile 4-position surface-mount connector designed for efficient wire-to-board connections in a variety of electronic applications. Its lead-free and tin-plated features make it suitable for modern manufacturing processes while ensuring durability and performance.