Based on current electronic component catalogs and industry standards, "2087" typically refers to specific parts within the semiconductor or power electronics categories. Below is an explanation of the most common components associated with this number. --- ## 1. Primary Component: 2N2087 (Transistor) The most frequent reference for "2087" in electronics is the **2N2087**, which is a vintage NPN Silicon transistor. While largely replaced by modern components, it is still referenced in legacy documentation and hobbyist circles. ### Specifications Table | Feature | Description | | :--- | :--- | | **Type** | NPN Silicon Transistor | | **Package** | TO-5 (Metal Can) | | **Max Voltage (Vceo)** | 35V | | **Max Current (Ic)** | 500mA | | **Applications** | General purpose switching and amplification | --- ## 2. Integrated Circuits (IC) Variants There are specific ICs and peripheral chips that utilize the number 2087, often within the communications or timing sectors: ### MX2087 (Power Management) Used frequently in mobile devices and small consumer electronics, the MX2087 is often a **Lithium-Ion Battery Protection IC**. * **Function:** Prevents overcharging, over-discharging, and over-current scenarios. * **Package:** SOT-23-6. ### LTC2087 (Hypothetical/Naming Series) In the Linear Technology (Analog Devices) naming convention, parts in the 2000 series (like LTC2057 or LTC2081) are high-precision **Operational Amplifiers**. While a specific "LTC2087" may be a specialized variant or regional part number, it generally fits the category of low-noise, zero-drift instrumentation. --- ## 3. Passive Components: 2087 Footprints In Surface Mount Technology (SMT), "2087" can occasionally refer to a custom or non-standard metric package size for high-power resistors or capacitors. * **Metric 2087:** Represents dimensions of approximately **2.0mm x 8.7mm**. * **Usage:** Often found in specialized shunt resistors used for current sensing in power supplies. --- ## Summary of Use Cases 1. **Repair/Restoration:** Looking for 2N2087 transistors to fix vintage radio or audio equipment. 2. **Battery Tech:** Implementing MX2087 for safety circuits in portable electronics. 3. **Industrial:** Utilizing precision 2000-series ICs for sensor signal conditioning.