MP050
AI

The **MP050** is commonly associated with a specific series of high-voltage resistors or small-scale power modules, most notably the **Caddock MP050 series**. These are Kool-Pak® Power Film Resistors designed for high-density power electronic applications.
### 1. Key Technical Specifications
The MP050 series is defined by its ability to dissipate significant power within a small TO-220 style package.
| Feature | Specification |
| :--- | :--- |
| **Package Type** | TO-220 Style |
| **Power Rating** | 50 Watts (at 25°C case temperature) |
| **Resistance Range** | 0.020 $\Omega$ to 10.0 k$\Omega$ |
| **Tolerance** | Generally ±1% (Standard) |
| **Operating Temp** | -55°C to +150°C |
---
### 2. Core Electronic Characteristics
The "electronic parts" of the MP050 are engineered to handle high thermal loads while maintaining electrical stability.
* **Non-Inductive Design:** These resistors are designed to be non-inductive. This is critical in high-speed switching power supplies where inductance can cause signal noise or voltage spikes.
* **Heat Sink Requirement:** While rated at 50W, this is only achievable when the part is mounted to a proper heat sink. Without a heat sink (in free air), the power rating drops significantly (usually to around 2.25W).
* **Insulated Case:** The ceramic mounting surface provides high dielectric strength, meaning the resistor is electrically isolated from the heat sink it is bolted to.
---
### 3. Common Applications
Due to their precision and power density, MP050 components are typically found in:
1. **Switching Power Supplies:** Used as snubbers or load resistors.
2. **Motor Control:** Used for current sensing or braking circuits.
3. **Test Equipment:** High-wattage dummy loads for circuit testing.
4. **Industrial RF:** Used in high-frequency amplifiers where low inductance is required.
---
### 4. Installation Example (Generic Wiring)
When integrating an MP050 into a circuit, thermal management is the priority.
```cpp
// Logic for Thermal Protection in a system using MP050
if (heatsink_temp > 100) {
shutdown_power(); // Prevent thermal runaway of the MP050
Serial.println("Thermal Limit Reached");
}
```
- ⤷What is the difference between the MP050 and the MP850 models?
- ⤷ How do you calculate the required heat sink size for a 50W load?
- ⤷ What are the common failure modes of power film resistors?