The **CTM3F-R82J** is a high-performance, molded unshielded surface-mount (SMD) inductor. It is commonly used in RF circuits, telecommunications, and high-frequency power filtering applications where stability and compact size are critical. --- ### ## Technical Specifications The part number "R82J" indicates its core electrical properties. Here is a breakdown of the key specifications: | Parameter | Value / Range | | :--- | :--- | | **Inductance** | 0.82 µH | | **Tolerance** | ±5% (indicated by the 'J' suffix) | | **Test Frequency** | 25.2 MHz | | **Self-Resonant Frequency (SRF)** | 225 MHz (Minimum) | | **DC Resistance (DCR)** | 0.35 Ω (Maximum) | | **Rated Current** | 760 mA | | **Operating Temperature** | -55°C to +105°C | --- ### ## Key Electronic Features 1. **Molded Construction:** The component is encapsulated in a rugged thermoset plastic. This provides excellent physical durability and protection against environmental factors like moisture and mechanical shock. 2. **High Self-Resonant Frequency (SRF):** With an SRF of 225 MHz, this inductor remains efficient at high frequencies before parasitic capacitance causes it to behave like a capacitor. 3. **Low DC Resistance (DCR):** The maximum resistance of 0.35 Ω ensures minimal power loss and heat generation, making it suitable for compact battery-powered devices. 4. **SMD Design:** The "CTM3F" series is designed for automated "pick and place" assembly, utilizing high-quality solder terminations for reliable connectivity on PCBs. --- ### ## Typical Applications Due to its high Q-factor and stable inductance, the CTM3F-R82J is found in: * **RF Tuning:** Used in resonant circuits for wireless communication. * **Decoupling:** Filtering out high-frequency noise from power supply lines. * **Signal Conditioning:** Maintaining signal integrity in telecommunication base stations. * **Consumer Electronics:** Power management modules in tablets and notebooks. ---