The part number **SH331M035ST** refers to a specific **Aluminum Electrolytic Capacitor**. These components are widely used in power supplies, audio equipment, and general electronics for energy storage and filtering. --- ### 1. Part Number Breakdown The nomenclature for this part (common in brands like Cornell Dubilier or Yageo/Yageo-Teapo) typically breaks down as follows: | Segment | Code | Meaning | |:---|:---|:---| | **Series** | SH | Standard Series (usually 105°C rated) | | **Capacitance** | 331 | **330 µF** (33 followed by 1 zero) | | **Tolerance** | M | **±20%** (Industry standard) | | **Voltage** | 035 | **35 Volts** (DC working voltage) | | **Case Size/Type** | ST | Standard Termination / Specific Case Dimensions | --- ### 2. Key Technical Specifications Based on standard manufacturer datasheets for this specific configuration: * **Capacitance:** 330 Microfarads (µF). * **Voltage Rating:** 35V DC (Surge voltage usually around 44V). * **Temperature Range:** -40°C to +105°C (The "SH" series is often the high-temp variant compared to 85°C series). * **Polarity:** Polarized (Has a specific negative and positive lead). * **Mounting Type:** Through-hole (Radial leads). * **Load Life:** Typically 2,000 hours at 105°C. --- ### 3. Physical Characteristics | Attribute | Typical Value | |:---|:---| | **Shape** | Cylindrical (Can) | | **Leads** | Radial (Both leads come out of the bottom) | | **Marking** | White stripe on the sleeve indicates the **Negative (-)** terminal | | **Electrolyte** | Liquid / Wet Aluminum | --- ### 4. Common Applications Due to its capacitance and voltage rating, the SH331M035ST is frequently found in: 1. **Filtering:** Smoothing out ripple voltage in 12V or 24V DC power supplies. 2. **Decoupling:** Preventing electrical noise from affecting sensitive integrated circuits. 3. **Audio Circuits:** Used in signal coupling or power rails for amplifiers. 4. **Adaptors:** Found inside consumer electronics chargers and AC/DC bricks. --- ### 5. Equivalent Replacement Tips If you are looking for a replacement, ensure the new part meets these criteria: * **Capacitance:** Must be 330 µF. * **Voltage:** Must be **35V or higher** (e.g., 50V is fine, but 25V is dangerous). * **Temperature:** 105°C is preferred; an 85°C rated part may fail prematurely in hot environments. * **Lead Spacing:** Ensure the physical distance between pins matches your PCB holes.