The part number **RTZ-25V102MJHTQ-R5** corresponds to a high-performance **Aluminum Electrolytic Capacitor**, typically manufactured by companies like **Suncon (Sanyo)** or similar specialists in the "RTZ" series. These are often used in automotive or high-reliability industrial power supplies. --- ### 1. Specification Breakdown The alphanumeric string defines the component's physical and electrical characteristics: | Component Code | Meaning | Detailed Specification | | :--- | :--- | :--- | | **RTZ** | Series Name | Low impedance, high ripple current, long life (often 105°C). | | **25V** | Rated Voltage | Maximum DC operating voltage of **25 Volts**. | | **102** | Capacitance | **1000 µF** (10 followed by 2 zeros in pF, converted to µF). | | **M** | Tolerance | **±20%** (Standard industry tolerance). | | **JHT** | Case Size/Form | Refers to specific dimensions (e.g., 10mm x 12.5mm or 10mm x 16mm). | | **Q-R5** | Packaging/Lead | Lead-free (RoHS) and Taped/Reeled for automated assembly. | --- ### 2. Technical Features This specific series is designed for "Low ESR" (Equivalent Series Resistance) applications. * **Operating Temperature:** Generally rated for **-55°C to +105°C**. * **Endurance:** Often rated for **2,000 to 5,000 hours** at maximum temperature. * **High Ripple Current:** Capable of handling significant AC current superimposed on the DC, preventing overheating. * **Form Factor:** Usually a Radial Lead (through-hole) type, though some variations exist in SMD. --- ### 3. Applications Due to the 1000µF capacity and low impedance, this part is commonly found in: 1. **DC-DC Converters:** Filtering input/output noise. 2. **Automotive Electronics:** Powering ECUs or infotainment systems where vibration and heat resistance are required. 3. **Motherboards/PSUs:** Stabilizing voltage rails for processors. --- ### 4. Equivalent Comparison If you are looking for a replacement, consider these parameters: ```yaml Comparison_Checklist: - Capacitance: 1000uF (Must match) - Voltage: 25V (Can be higher, e.g., 35V, but never lower) - Temperature: 105C (Do not downgrade to 85C) - ESR: Low ESR (Critical for switching power supplies) - Size: Diameter and Lead Spacing (Must fit the PCB footprint) ```