component
B72520T0500K062
Public Made by Adomby adom
TDK Varistors, 1206. Pinout cross-checked by two models against the datasheet, 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
markdownB72520T0500K062
TDK · Varistors · 1206
B72520T0500K062 from TDK, in a 1206. 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 the bidirectional single-chip varistor (CT1206K50G), VRMS,max 50 V, VDC,max 65 V, Isurge,max 100 A (8/20 µs); connect in parallel with the circuit to be protected. |
| 2 | 2 | passive | Terminal 2 of the bidirectional single-chip varistor (CT1206K50G), interchangeable with terminal 1 as protection is bidirectional; Vclamp,max 135 V at 1 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TDK |
| Package | 1206 |
| 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 | 50 | V | 8 | |||
| Maximum DC operating voltage | VDC,max | 65 | V | 8 | |||
| Maximum surge current | Isurge,max | 100 | A | 8/20 µs | 8 | ||
| Maximum energy absorption | Wmax | 600 | mJ | 2 ms | 8 | ||
| Maximum power dissipation | Pdiss,max | 8 | mW | 8 | |||
| Maximum operating temperature | Top,max | 125 | °C | 8 | |||
| Operating temperature | Top | -55 | 125 | °C | case size ≥ 0603 | 4 | |
| Storage temperature | LCT/UCT | -55 | 150 | °C | case size ≥ 0603 | 4 | |
| Response time | tresp | 0.5 | ns | 4 | |||
| Tolerance of varistor voltage | ∆VV | -10 | 10 | % | TA = 25 °C | 9 | |
| Maximum clamping voltage | Vclamp,max | 135 | V | Iclamp = 1 A (8/20 µs) | 9 | ||
| Varistor voltage | VV | 82 | V | 1 mA; TA = 25 °C | 9 | ||
| Typical capacitance | Ctyp | 120 | pF | @ 1 V; f = 1 kHz (C ≥ 100 pF) | 9 |
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 | silver | Silver-platinum terminations are mainly used for the large EIA case sizes 1812 and 2220. The silver-platinum termination is approved for reflow soldering, SnPb soldering and lead-free soldering with | 64 |
CAD (KiCad official)
- Symbol:
B72520T0500K062 - Footprint:
Resistor_SMD:R_1206_3216Metric - 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files:
b72520t0500k062-etched.step/b72520t0500k062-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b72520t0500k062.step/b72520t0500k062.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TDK datasheet (79 pp, sha256
9a351af2269c4e94, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-5-5(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).