The part number **HT-50V331MIEQ-R5** refers to a specific **Aluminum Electrolytic Capacitor**. Based on standard industry naming conventions (common for brands like Lelon, Samxon, or similar manufacturers), here is the detailed breakdown of its specifications. --- ### 1. Technical Specifications | Parameter | Specification | | :--- | :--- | | **Capacitance** | 330 µF (Microfarads) | | **Voltage Rating** | 50V DC | | **Type** | Aluminum Electrolytic | | **Mounting Type** | Radial (Through-Hole) | | **Temperature Range** | Usually -40°C to +105°C (HT often denotes High Temp) | | **Tolerance** | ±20% (Standard for "M" code) | | **Package/Case** | Cylindrical Can | --- ### 2. Part Number Breakdown Breaking down the alphanumeric code: * **HT**: Likely refers to the **Series**. In many catalogs, HT indicates a high-temperature or long-life series (105°C). * **50V**: Represents the **Rated Voltage** (50 Volts). * **331**: Represents the **Capacitance**. The first two digits (33) are significant figures, and the third (1) is the multiplier ($10^1$). $33 \times 10 = 330$ µF. * **M**: Represents the **Tolerance** (M = ±20%). * **IEQ**: This is a manufacturer-specific code for **Case Size** (e.g., 10x12.5mm or 8x11mm) and lead spacing. * **R5**: Often indicates the **Packaging Style** (e.g., Bulk, Ammo Pack, or specific lead forming) and a Revision or RoHS compliance marker. --- ### 3. Key Applications This capacitor is designed for general-purpose electronic filtering and power management: 1. **Power Supplies:** Used for smoothing output ripples in DC-DC converters. 2. **Audio Circuits:** Coupling and decoupling in amplifiers to block DC while passing AC. 3. **Industrial Controls:** Filtering noise in 24V or 48V control systems. 4. **Consumer Electronics:** Standard bypass capacitor on PCB motherboards. --- ### 4. Critical Considerations * **Polarity:** As an electrolytic capacitor, it is **polarized**. The negative lead (shorter lead/stripe on the body) must be connected to the lower potential. * **ESR (Equivalent Series Resistance):** If used in high-frequency switching power supplies, ensure the HT series meets your ESR requirements to prevent overheating. * **Voltage Margin:** It is best practice to run the capacitor at 80% or less of its rated voltage (e.g., using a 50V cap for a 40V line) to increase lifespan. ---