B72520T0300K062

TDK · Varistors · 1206

B72520T0300K062 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 an unpolarised resistor; either orientation.
2	2	passive	Terminal 2 of an unpolarised resistor; either orientation.

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
Clamping voltage, maximum	Vclamp,max			77	V	Iclamp 1 A (8/20 µs)	9
Maximum surge current	Isurge,max			200	A	8/20 µs	8
Maximum energy absorption	Wmax			1100	mJ	2 ms	8
Maximum power dissipation	Pdiss,max			8	mW		8
Maximum RMS operating voltage	VRMS,max			30	V		8
Maximum DC operating voltage	VDC,max			38	V		8
Maximum operating temperature	Top,max			125	°C		8
Operating temperature range	Top	-55		125	°C	for case size ≥ 0603	4
Storage temperature range	LCT/UCT	-55		150	°C	for case size ≥ 0603	4
Varistor voltage tolerance	ΔVV	-10		10	%		9
Varistor voltage	VV		47		V	1 mA	9
Typical capacitance	Ctyp		500		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: B72520T0300K062
Footprint: Resistor_SMD:R_1206_3216Metric
3D model: 1206 (KiCad packages3D, STEP)
3D model files: b72520t0300k062-etched.step / b72520t0300k062-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); b72520t0300k062.step / b72520t0300k062.glb are 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, primary two-terminal convention (convention), consensus off (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).

Datasheet PDF

# B72520T0300K062

**TDK** · Varistors · 1206

B72520T0300K062 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 an unpolarised resistor; either orientation. |
| 2 | 2 | passive | Terminal 2 of an unpolarised resistor; either orientation. |

## 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 |
|---|---|---|---|---|---|---|---|
| Clamping voltage, maximum | Vclamp,max |  |  | 77 | V | Iclamp 1 A (8/20 µs) | 9 |
| Maximum surge current | Isurge,max |  |  | 200 | A | 8/20 µs | 8 |
| Maximum energy absorption | Wmax |  |  | 1100 | mJ | 2 ms | 8 |
| Maximum power dissipation | Pdiss,max |  |  | 8 | mW |  | 8 |
| Maximum RMS operating voltage | VRMS,max |  |  | 30 | V |  | 8 |
| Maximum DC operating voltage | VDC,max |  |  | 38 | V |  | 8 |
| Maximum operating temperature | Top,max |  |  | 125 | °C |  | 8 |
| Operating temperature range | Top | -55 |  | 125 | °C | for case size ≥ 0603 | 4 |
| Storage temperature range | LCT/UCT | -55 |  | 150 | °C | for case size ≥ 0603 | 4 |
| Varistor voltage tolerance | ΔVV | -10 |  | 10 | % |  | 9 |
| Varistor voltage | VV |  | 47 |  | V | 1 mA | 9 |
| Typical capacitance | Ctyp |  | 500 |  | 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: `B72520T0300K062`
- Footprint: `Resistor_SMD:R_1206_3216Metric`
- 3D model: 1206 (KiCad packages3D, STEP)
- 3D model files: `b72520t0300k062-etched.step` / `b72520t0300k062-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `b72520t0300k062.step` / `b72520t0300k062.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [TDK datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588906327385526273) (79 pp, sha256 `9a351af2269c4e94`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `two-terminal convention` (convention), consensus `off` (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).

[Datasheet PDF](docs/b72520t0300k062-datasheet.pdf)