1N5250B Zener Diode 20V 0.5W
EGP 0.50
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1N5250B Zener Diode 20 V 0.5W The 1N5250B is a silicon planar Zener diode from the 1N52xxB series, designed to provide a stable reference voltage of 20V in reverse-bias operation. Encapsulated in a standard DO-35 glass axial package, it is ideal for general-purpose electronics applications such as voltage regulation, reference generation, and small-signal protection. The diode supports up to 500 mW of power dissipation under correct thermal conditions and exhibits sharp reverse-breakdown characteristics with low reverse leakage current — making it reliable for both analog and digital circuit designs. Features Zener breakdown voltage of 20V. 0.5 W maximum power dissipation when properly heatsinked or mounted. Low reverse leakage current and tight breakdown tolerance (±5 %). Sharp reverse-characteristics — stable voltage reference under varying load conditions. Standard DO-35 glass-encapsulated axial package — easy to solder and integrate on PCB or perf-board. Wide operating temperature range (–65 °C to +200 °C storage; junction rated up to +175 °C). Specifications Parameter Value Zener Voltage (V Z ) 20V (nominal) Power Dissipation (P D ) 0.5 W (at T A =25 °C) Reverse Current (I R ) Low (typical leakage in µA range, per datasheet) Tolerance ±5 % standard Zener tolerance (1N52xxB series) Package DO-35 axial glass diode (through-hole) Temperature Range (Storage) –65 °C to +200 °C Maximum Junction Temperature +175 °C Applications Voltage regulation and reference in power supplies and linear regulators (e.g. 20V reference rail). Over-voltage protection and voltage clamping in analog or digital circuits. Signal-conditioning circuits, comparators, and waveform clipping. Protection of inputs or outputs in microcontroller, sensor or communication modules. General-purpose use in test fixtures, power adapters, and DIY electronics projects requiring stable 20V reference or clamp. Package Contents 1× 1N5250B Zener Diode 20V 0.5W. Documents Datasheet 1N5250B CAD Files KiCad Download
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