The part number **DM10DY102KO3-RHR02** corresponds to a specialized **Ceramic Disc Capacitor**, typically manufactured by companies like **DECO** or similar high-voltage component specialists. These capacitors are engineered for durability in power supply and suppression circuits. --- ### 1. Technical Specifications | Parameter | Specification | |:---|:---| | **Capacitance** | 1000 pF (1 nF) | | **Capacitance Code** | 102 (10 + 00) | | **Voltage Rating** | High Voltage (Commonly 1kV - 10kV depending on series) | | **Tolerance** | ±10% (Code: K) | | **Temperature Coefficient** | Y5P or similar (indicated by "DY") | | **Mounting Type** | Through-hole (Radial Leads) | --- ### 2. Breakdown of the Part Number * **DM**: Series identifier (often refers to a specific disc material or safety rating). * **DY**: Dielectric material code. "Y" typically denotes a Class II ceramic (like Y5P), which offers high volumetric efficiency. * **102**: Capacitance value. The first two digits (10) are significant figures, and the third (2) is the multiplier ($10^2$). Result: $1000$ pF. * **K**: Tolerance code, representing ±10%. * **O3**: Internal manufacturer code for lead spacing or lead length. * **RHR02**: Packaging and compliance suffix (often denotes RoHS compliance and specific reel/bulk packaging styles). --- ### 3. Key Applications These capacitors are designed for high-stress environments and are commonly found in: 1. **Switch-Mode Power Supplies (SMPS):** Used for snubber circuits to protect against voltage spikes. 2. **EMI/RFI Filtering:** Used to bypass high-frequency noise to the ground. 3. **Lighting Ballasts:** Found in high-intensity discharge or LED driver circuits. 4. **TV/Monitor Circuits:** Used in horizontal resonance or high-voltage coupling. --- ### 4. Characteristics and Behavior * **Stability:** Since it uses a Class II dielectric (DY/Y5P), the capacitance will fluctuate based on temperature changes. It is not suitable for precision timing but excellent for decoupling. * **Voltage Robustness:** These parts are tested to withstand transient surges significantly higher than their rated DC voltage.