SFH31-NPPB-D21-SP-BK

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The SFH31-NPPB-D21-SP-BK is a type of rectangular connector in the Headers, Receptacles, Female Sockets family. It is a 2-row, through-hole type with 21 contacts in each row.

This is a popular connector choice because it can provide robust protection against a variety of environmental conditions, such as temperature changes, dust, and vibrations. The copper alloy contacts produce high contact force for good electrical conductance. The board retention force exceeds 2.5lbs for secure connection.

The SFH31-NPPB-D21-SP-BK is generally used in applications for detecting pulses through light, such as in smart irrigation systems. This connector is also used in medical and commercial applications, such as blood pressure monitors, point-of-sale systems, radio-wave sensing equipment and alarm systems.

The working principle of the SFH31-NPPB-D21-SP-BK is quite simple. The housing is constructed of polyvinylchloride (PVC). Electrical energy is transferred, or sensed, through the contact tips, which make direct contact with the mating part. The IDC terminal is fitted into the insulation displacement contact feature in the body, and is held securely with a tightening screw. The contact tips are then firmly secured to the PCB, forming a strong electrical connection between the two parts.

The SFH31-NPPB-D21-SP-BK provides reliable and secure connections in a variety of applications. The 2.5lbs board retention, the high quality contacts, and protection against environmental conditions combine to make it a preferred choice of rectangular connectors in the Headers, Receptacles, Female Sockets family.

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