The part number **MG3JB1G00** refers to a high-voltage, metal film resistor manufactured by **Stackpole Electronics**. This specific component is part of the MG series, designed for stability and reliability in high-voltage applications. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the MG3JB1G00: | Parameter | Specification | | :--- | :--- | | **Resistance Value** | 1.0 Gigaohm (1GΩ) | | **Tolerance** | ±5% (J grade) | | **Power Rating** | 3 Watts | | **Technology** | Metal Glaze / Thick Film | | **Mounting Type** | Through-Hole (Axial Leads) | | **Voltage Rating** | High Voltage (Up to several kV depending on size) | | **Operating Temperature** | -55°C to +155°C | --- ### 2. Physical Construction The **MG series** utilizes a specialized metal glaze film fired onto a high-grade ceramic core. * **Coating:** The resistor is coated with multiple layers of flameproof lacquer or epoxy to protect against environmental moisture and electrical arcing. * **Terminals:** Lead-free, tin-plated copper leads for easy soldering. * **Size:** As a 3-watt resistor, it is physically larger than standard 1/4W or 1/2W resistors to dissipate heat and prevent voltage breakdown across the body. --- ### 3. Common Applications Due to its high resistance (1 Gigaohm) and high voltage handling capabilities, this part is typically used in: 1. **High Voltage Power Supplies:** Used as a bleeder resistor or in voltage divider networks. 2. **Medical Equipment:** X-ray machines and patient monitoring devices where high impedance is required. 3. **Industrial Instrumentation:** Used in insulation testers, multimeters, and high-precision sensors. 4. **Electrostatic Systems:** Applications involving air purifiers or static elimination. --- ### 4. Part Number Breakdown Understanding the Stackpole nomenclature: | Code Segment | Meaning | | :--- | :--- | | **MG** | Series Name (Metal Glaze / High Voltage) | | **3** | Power Rating (3 Watts) | | **J** | Tolerance (±5%) | | **B** | Packaging (Bulk) | | **1G00** | Resistance Value (1.0 x 10^9 Ohms or 1GΩ) |