The part number **B65807-J-R97** refers to a high-quality ferrite core manufactured by **TDK Electronics (formerly EPCOS)**. Specifically, this is an **RM6 (Rectangular Modul)** core made from the **N97** power material. --- ## 1. Technical Specifications The following table outlines the key physical and magnetic characteristics of the B65807-J-R97: | Property | Specification | Details | | :--- | :--- | :--- | | **Core Shape** | RM6 | Rectangular Modul, optimized for PCB space | | **Material Grade** | N97 | Low-loss power material | | **Magnetic Value ($A_L$)** | 2400 nH (+30% / -20%) | Inductance factor for ungapped core | | **Effective Length ($l_e$)** | 28.6 mm | Path of the magnetic flux | | **Effective Area ($A_e$)** | 36.6 $mm^2$ | Cross-sectional area | | **Effective Volume ($V_e$)** | 1050 $mm^3$ | Total volume of the core | | **Weight** | ~5.1 g per set | Approximate mass | --- ## 2. Material Characteristics (N97) The **N97 material** is a MnZn (Manganese-Zinc) ferrite designed for power transformers and switch-mode power supplies (SMPS). Its primary advantages include: * **Low Power Loss:** Optimized for frequencies up to **500 kHz**. * **Saturation:** High magnetic flux density saturation point (approx. 490 mT at 25°C). * **Temperature Stability:** Minimum power losses are typically reached at around **100°C**, making it ideal for industrial applications where heat is generated. --- ## 3. Applications and Usage The RM6 core shape is highly popular because it provides a balance between high packing density on a circuit board and excellent electromagnetic shielding. ### Common Use Cases: 1. **SMPS Transformers:** Used in DC-DC converters and AC-DC power supplies. 2. **Inductors:** Used in filter circuits to reduce electromagnetic interference (EMI). 3. **Telecommunications:** Pulse transformers and signal coupling. ### Required Accessories: To use this core in a design, you typically require: * **Bobbins:** (e.g., B65808 series) to hold the copper windings. * **Clamps/Clips:** To hold the two halves of the core together securely. --- ## 4. Ordering Note The "R97" suffix indicates that this is a **set of two matched core halves** (ungapped) delivered as a single unit. If you require a specific air gap for energy storage (Chokes), you would look for a different suffix (e.g., A or S).