The part number **5MV-154-R** typically refers to a **radial leaded metalized polyester film capacitor**. These components are widely used in general-purpose electronic circuits for blocking, bypassing, and decoupling. --- ### 1. Key Technical Specifications Based on standard industry nomenclature for this part series, here are the primary specifications: | Parameter | Specification | Details | | :--- | :--- | :--- | | **Capacitance** | 0.15 µF | Indicated by "154" (15 followed by 4 zeros in pF) | | **Tolerance** | ±10% (K) or ±20% (M) | Usually standard commercial tolerance | | **Dielectric** | Metalized Polyester | Known for self-healing properties | | **Voltage Rating** | 50V - 100V | Depending on the specific manufacturer sub-series | | **Mounting Type** | Through-Hole | Radial lead configuration (R) | --- ### 2. Decoding the Part Number To understand the component, we break down the alphanumeric code: * **5MV / MV:** Refers to the series type (Metalized Vertical/Radial Polyester). * **154:** The capacitance value in Picofarads (pF). * $15 \times 10^4 = 150,000 \text{ pF}$ * $150,000 \text{ pF} = 150 \text{ nF} = \mathbf{0.15 \mu F}$ * **R:** Indicates **Radial** lead packaging or **RoHS** compliance (Lead-free), depending on the specific vendor (like Topmay or Lelon). --- ### 3. Physical & Operational Characteristics #### **Self-Healing Property** One of the most important features of the metalized polyester film used in the 5MV-154-R is its ability to "self-heal." If a dielectric breakdown occurs due to a voltage spike, the thin metal layer evaporates around the short circuit, clearing the fault and allowing the capacitor to continue functioning. #### **Applications** * **Coupling/Decoupling:** Used to pass AC signals while blocking DC. * **Timing Circuits:** Found in multivibrators and oscillators. * **Filtering:** Used in low-frequency filters for audio equipment. * **Noise Suppression:** Reducing electromagnetic interference in power lines. --- ### 4. Typical Dimensions (Approximate) Since these are radial components, they usually follow a standard footprint: * **Lead Spacing:** 5mm or 7.5mm. * **Body Height:** 7mm to 11mm. * **Body Width:** 10mm to 13mm.