The **MLPS861M250EB0C** is a high-performance electrolytic capacitor, part of the **MLPS (Flatpack)** series manufactured by **Cornell Dubilier (CDE)**. This component is specifically designed for high-reliability aerospace, military, and industrial applications where space is at a premium but high energy density is required. --- ### ## Technical Specifications Below are the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Capacitance** | 860 µF (Microfarads) | | **Voltage Rating** | 250 VDC | | **Tolerance** | ±20% | | **Operating Temperature** | -55°C to +105°C | | **ESR (Equivalent Series Resistance)** | Low (optimized for high ripple currents) | | **Case Style** | EB (Flatpack Profile) | | **Life Expectancy** | 5,000 hours at 105°C | | **Dimensions** | Roughly 1.5" x 1.5" x 0.5" (Standard Flatpack size) | --- ### ## Key Construction Features ### 1. Flatpack Form Factor Unlike traditional cylindrical electrolytic capacitors, the MLPS series uses a rectangular, flat design. - **Space Efficiency:** It can be mounted flat against a PCB or chassis, significantly reducing the height of the electronic assembly. - **Heat Dissipation:** The flat surface area allows for better thermal contact with heatsinks or cold plates. ### 2. Hermetic-like Ruggedness While often used in commercial-off-the-shelf (COTS+) applications, the MLPS construction is designed to withstand: - High vibration and mechanical shock. - Low atmospheric pressure (high-altitude environments). ### 3. Electrolyte Chemistry The part uses a high-stability electrolyte that allows it to maintain a long life (5,000 hours) at its maximum rated temperature (105°C), which is superior to many standard 85°C rated flat capacitors. --- ### ## Common Applications The **MLPS861M250EB0C** is typically found in power electronics where "bulk storage" or "decoupling" is needed in a constrained volume: * **Military/Aerospace:** Power supplies for avionics and radar systems. * **DC-DC Converters:** Providing energy reservoirs for high-power switching regulators. * **Pulse Power:** Used in systems requiring rapid discharges of stored energy. * **UPS Systems:** In compact, high-reliability backup power units. --- ### ## Identification Code Breakdown `MLPS` `861` `M` `250` `EB` `0` `C` * **MLPS:** Series name (Flatpack Aluminum Electrolytic). * **861:** Capacitance code (86 + 1 zero = 860 µF). * **M:** Tolerance (M = ±20%). * **250:** Rated Voltage (250 VDC). * **EB:** Case code (denotes specific physical dimensions). * **0:** Insulation/Mounting style. * **C:** Manufacturing/Design Revision.