BM04B-SRSS-TB(LF)(SN) Rectangular Connectors - Headers, Male Pins by JST

The BM04B-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. This connector is part of JST's series of wire-to-board connectors, which are designed for reliable connections in various electronic applications.

Detailed Description:

1. Type and Configuration:
   • The BM04B-SRSS-TB(LF)(SN) is a 4-position, wire-to-board connector. It features a male header configuration, which means it is designed to connect to a female counterpart, typically found on a PCB (Printed Circuit Board).
2. Pin Count:
   • The connector has 4 pins, allowing for the connection of four individual wires or circuits. This makes it suitable for applications requiring multiple signal or power connections.
3. Pitch:
   • The pin pitch (the distance between the centers of adjacent pins) is typically 2.0 mm. This compact pitch allows for a smaller footprint on the PCB, making it ideal for space-constrained designs.
4. Material:
   • The housing of the connector is made from high-quality thermoplastic material, which provides durability and resistance to heat and chemicals. The contacts are usually made from copper alloy, ensuring good electrical conductivity.
5. Surface Finish:
   • The "(LF)" in the part number indicates that the connector has a lead-free finish, which is compliant with RoHS (Restriction of Hazardous Substances) standards. This is important for environmentally friendly manufacturing processes.
6. Contact Plating:
   • The contacts are typically plated with a nickel layer followed by a gold layer (often referred to as "SN" for "tin" plating), which enhances corrosion resistance and ensures reliable electrical connections over time.
7. Mounting Style:
   • The BM04B-SRSS-TB(LF)(SN) is designed for through-hole mounting, which means it is inserted into holes on the PCB and soldered in place. This provides a strong mechanical connection and is suitable for various applications.
8. Current Rating:
   • The connector is rated for a specific current capacity, typically around 3A per pin, depending on the application and wire gauge used. This makes it suitable for low to moderate power applications.
9. Temperature Range:
   • The operating temperature range for this connector is generally from -25°C to +85°C, making it suitable for a variety of environments, including consumer electronics, automotive, and industrial applications.
10. Applications:
    • The BM04B-SRSS-TB(LF)(SN) connector is commonly used in applications such as LED lighting, automotive electronics, consumer appliances, and other electronic devices where reliable wire-to-board connections are required.

In summary, the BM04B-SRSS-TB(LF)(SN) from JST is a versatile and reliable connector designed for efficient wire-to-board connections in a variety of electronic applications, characterized by its compact size, durable materials, and compliance with environmental standards.