The **MT1-6-R** is a specific type of **Micro Fuse** belonging to the subminiature, radial-leaded category. These are commonly used in power supplies, chargers, and consumer electronics where space is limited but circuit protection is critical. --- ### 1. Technical Specifications The part number "MT1-6-R" typically follows industry-standard naming conventions for time-delay fuses. | Parameter | Specification | | :--- | :--- | | **Current Rating** | 6 Amperes (6A) | | **Voltage Rating** | Typically 250V AC | | **Fuse Type** | Time-Delay (Slow Blow) | | **Form Factor** | Radial Lead (Through-hole) | | **Body Material** | Thermoplastic (usually UL 94-V0 rated) | | **Termination** | Tin-plated Copper | | **Compliance** | RoHS Compliant, Lead-Free | --- ### 2. Physical Characteristics The "MT" series usually features a small, rectangular or cylindrical plastic body. * **Dimensions:** Often roughly 8.5mm x 8mm x 4mm (though this varies by manufacturer). * **Pitch:** Standard 5.08mm lead spacing for easy PCB mounting. * **Markings:** The top or side of the component usually indicates the current rating (6A) and the voltage (250V). --- ### 3. Functional behavior (Time-Delay) As a **Time-Delay (Slow Blow)** fuse, the MT1-6-R is designed to: 1. **Withstand Inrush Current:** It will not blow immediately when high-current surges occur (like when a device is first plugged in). 2. **Sustained Overcurrent Protection:** It will only open (break the circuit) if the 6A threshold is exceeded for a specific duration defined by its "Time-Current Curve." --- ### 4. Common Applications Due to its small footprint and 6A capacity, it is frequently found in: * **Switch Mode Power Supplies (SMPS)** * **Battery Chargers** * **LED Drivers** * **Industrial Controllers** * **Consumer Appliances** (Televisions, printers, etc.) --- ### 5. Identification Code Breakdown | Segment | Meaning | | :--- | :--- | | **MT** | Series series (Micro Time-delay) | | **1** | Often indicates physical size or version | | **6** | Current rating (6 Amperes) | | **R** | RoHS Compliant / Lead-free | ---