The term **1262** usually refers to a specific package size for Surface Mount Devices (SMD) or a specific component model number. In the electronics industry, this most commonly relates to high-power resistors or specific integrated circuits. --- ## 1. The 1262 Package (SMD) In the world of Surface Mount Technology (SMT), numbers typically represent the dimensions of the component. A **1262 package** is a large-form factor SMD component often used for power applications. ### Dimensions and Characteristics | Feature | Description | | :--- | :--- | | **Length** | Approximately 12.0 mm | | **Width** | Approximately 6.2 mm | | **Power Rating** | High (often 3W to 10W depending on cooling) | | **Common Use** | Current sensing, power distribution, and load resistors | --- ## 2. Common Components with "1262" Designation Below are the most frequent electronic parts that carry the 1262 label: ### A. Power Resistors (e.g., Ohmite 1262 Series) These are thick-film resistors designed to be mounted on a heatsink or a PCB with large copper planes. * **Non-Inductive:** Ideal for high-frequency applications. * **Heat Dissipation:** Often features a TO-263 (D2PAK) style footprint but follows 1262 sizing. * **Tolerance:** Typically available in 1% or 5%. ### B. Voltage Regulators (e.g., LT1262) The **LT1262** is a specific integrated circuit manufactured by Analog Devices (formerly Linear Technology). * **Function:** Fixed 12V output, 30mA flash memory programming supply. * **Input Voltage:** Can handle up to 30V. * **Purpose:** Specifically designed to provide the regulated voltage needed to program flash EPROMs. --- ## 3. Comparison of 1262 vs. Standard Sizes How the 1262 compares to standard hobbyist SMD sizes: | Size Code | Dimensions (mm) | Common Usage | | :--- | :--- | :--- | | **0805** | 2.0 x 1.25 | General purpose / low power | | **1206** | 3.2 x 1.6 | Standard resistor/capacitor | | **2512** | 6.3 x 3.2 | Power resistor (1W) | | **1262** | **12.6 x 6.2** | **High Power / Industrial** | --- ## Summary When dealing with "1262" parts: 1. **Check the brand:** If it is a resistor, you are looking for a high-power SMD component. 2. **Check the function:** If it is an IC (like the LT1262), it is likely a voltage regulator for legacy memory programming. 3. **Thermal Management:** Because 1262 parts are physically large, they usually generate significant heat; ensure your PCB has adequate copper "pour" to act as a heatsink.