component
B72580E0250K062
Public Made by Adomby adom
TDK Varistors, 1812. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownB72580E0250K062
TDK · Varistors · 1812
B72580E0250K062 from TDK, in a 1812. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 1 | passive | Terminal 1 of an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| Package | 1812 |
| Category | Circuit Protection |
| Pins | 2 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Maximum RMS operating voltage | VRMS,max | 25 | V | 9 | |||
| Maximum DC operating voltage | VDC,max | 31 | V | 9 | |||
| Maximum energy absorption | Wmax | 3700 | mJ | 2 ms | 9 | ||
| Maximum power dissipation | Pdiss,max | 15 | mW | 9 | |||
| Maximum surge current | Isurge,max | 800 | A | 8/20 µs | 10 | ||
| Maximum clamping voltage | Vclamp,max | 65 | V | Iclamp 5 A (8/20 µs) | 10 | ||
| Varistor voltage tolerance | ΔVV | -10 | 10 | % | 9 | ||
| Operating temperature | Top | -55 | 150 | °C | Single chip (climatic category) | 4 | |
| Storage temperature | LCT/UCT | -55 | 150 | °C | 4 | ||
| Response time | tresp | 0.5 | ns | 4 | |||
| Typical capacitance | Ctyp | 2500 | pF | f = 1 kHz (note 2: f = 1 kHz for C ≥ 100 pF) | 10 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | nickel | RoHS-compatible, lead-free Nickel barrier suitable for lead-free soldering | 2 |
CAD (KiCad official)
- Symbol:
B72580E0250K062 - Footprint:
Resistor_SMD:R_1812_4532Metric - 3D model: 1812 (KiCad packages3D, STEP)
- 3D model files:
b72580e0250k062-etched.step/b72580e0250k062-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b72580e0250k062.step/b72580e0250k062.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDK datasheet (81 pp, sha256
4eb6950d8ffc27e0, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarytwo-terminal convention(convention), consensusoff(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).