The term **1261-R1** typically refers to a specific electronic component, most commonly associated with **RF (Radio Frequency) connectors** or specific **Power Modules/Inductors**, depending on the manufacturer prefix. However, in the context of general electronics manufacturing and distribution, this part number is most frequently linked to **SMB (SubMiniature version B)** series connectors or high-precision passive components. --- ### 1. Technical Specifications (General) If we look at the most common industrial application for the 1261-R1 (RF Connector series), the specifications are as follows: | Feature | Specification | | :--- | :--- | | **Component Type** | RF Connector / Coaxial Interface | | **Interface Style** | SMB (Push-on coupling) | | **Impedance** | 50 Ohms (Standard) | | **Body Material** | Brass with Gold or Nickel Plating | | **Contact Material** | Beryllium Copper | | **Mounting Type** | PCB Mount or Cable Edge | --- ### 2. Key Internal Electronic Parts The 1261-R1 is an assembly of several precision-engineered parts: 1. **Center Contact (Pin):** Usually made of gold-plated brass or copper to ensure high conductivity and minimal signal loss. 2. **Insulator (Dielectric):** Often made of **PTFE (Teflon)**. This provides high insulation resistance and maintains constant impedance across the signal path. 3. **Outer Body:** The shell that provides mechanical strength and grounding. It features a "snap-on" mechanism characteristic of SMB connectors. 4. **Spring Elements:** Internal clips that ensure a secure mechanical lock and consistent electrical contact during vibration. --- ### 3. Applications Parts in this category are used in high-frequency environments where space is limited but reliability is required: * **Telecommunications:** Base station equipment and antennas. * **Instrumentation:** Signal generators and measurement devices. * **Medical Electronics:** High-speed data transmission in imaging equipment. * **Automotive:** GPS and infotainment modules. --- ### 4. Variants and Identification When sourcing this part, pay attention to the manufacturer prefix: * **Molex/TE Connectivity:** Often use similar numbering for RF sub-assemblies. * **Coilcraft/Murata:** If the part is a power inductor (e.g., 1261 series), it will consist of a ferrite core and copper windings designed for DC-DC converters. ---