TT0502PKX

Shenzhen JingYang · ESD And Surge Protection (TVS/ESD) · SOT-23

TT0502PKX from Shenzhen JingYang, in a SOT-23. 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	I/O_1	passive	Protected high-speed data line 1 (bi-directional TVS to GND), 5 pF typical I/O-to-GND capacitance, VRWM 5.0 V.
2	I/O_2	passive	Protected high-speed data line 2 (bi-directional TVS to GND), 5 pF typical I/O-to-GND capacitance, VRWM 5.0 V.
3	GND	power_in	Common ground reference for both TVS channels, to be connected to the system ground.

Key specifications

Parameter	Value
Manufacturer	Shenzhen JingYang
Package	SOT-23
Category	Circuit Protection
Pins	3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Nominal Reverse Working Voltage	VRWM		5		V		2
Reverse Leakage Current	IR		0.1	1	μA	VRWM = 5V, T = 25C, Between I/O and GND	2
Reverse Breakdown Voltage	VBR	6		8	V	IT = 1mA, Between I/O and GND	2
Clamping Voltage	VC			9	V	IPP = 1A, tp = 8/20μs, Between I/O and GND	2
Parasitic Capacitance	CESD			7	pF	VR = 0V, f = 1MHz, Between I/O and GND	2
Peak Pulse Current	IPP			4	A	tp=8/20us	2
ESD per IEC 61000-4-2 (Air)	VESD	-30		30	kV	ESD per IEC 61000-4-2 (Air)	2
ESD per IEC 61000-4-2 (Contact)	VESD	-25		25	kV	ESD per IEC 61000-4-2 (Contact)	2
Human body model ESD	HBM	-2500		2500	V	Human body model	2
Charged device model ESD	CDM	-1000		1000	V	Charged device model	2
Machine model ESD	MM	-200		200	V	Machine model	2
Operating Temperature	TOPT	-55		125	C		2
Storage Temperature	TSTG	-55		150	C		2

CAD (KiCad official)

Symbol: TT0502PKX
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: tt0502pkx-etched.step / tt0502pkx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tt0502pkx.step / tt0502pkx.glb are the bare package body.

Provenance

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

Datasheet: Shenzhen JingYang datasheet (7 pp, sha256 fa9377f0871a09a4, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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).

Datasheet PDF

# TT0502PKX

**Shenzhen JingYang** · ESD And Surge Protection (TVS/ESD) · SOT-23

TT0502PKX from Shenzhen JingYang, in a SOT-23. 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 | I/O_1 | passive | Protected high-speed data line 1 (bi-directional TVS to GND), 5 pF typical I/O-to-GND capacitance, VRWM 5.0 V. |
| 2 | I/O_2 | passive | Protected high-speed data line 2 (bi-directional TVS to GND), 5 pF typical I/O-to-GND capacitance, VRWM 5.0 V. |
| 3 | GND | power_in | Common ground reference for both TVS channels, to be connected to the system ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen JingYang |
| Package | SOT-23 |
| Category | Circuit Protection |
| Pins | 3 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Nominal Reverse Working Voltage | VRWM |  | 5 |  | V |  | 2 |
| Reverse Leakage Current | IR |  | 0.1 | 1 | μA | VRWM = 5V, T = 25C, Between I/O and GND | 2 |
| Reverse Breakdown Voltage | VBR | 6 |  | 8 | V | IT = 1mA, Between I/O and GND | 2 |
| Clamping Voltage | VC |  |  | 9 | V | IPP = 1A, tp = 8/20μs, Between I/O and GND | 2 |
| Parasitic Capacitance | CESD |  |  | 7 | pF | VR = 0V, f = 1MHz, Between I/O and GND | 2 |
| Peak Pulse Current | IPP |  |  | 4 | A | tp=8/20us | 2 |
| ESD per IEC 61000-4-2 (Air) | VESD | -30 |  | 30 | kV | ESD per IEC 61000-4-2 (Air) | 2 |
| ESD per IEC 61000-4-2 (Contact) | VESD | -25 |  | 25 | kV | ESD per IEC 61000-4-2 (Contact) | 2 |
| Human body model ESD | HBM | -2500 |  | 2500 | V | Human body model | 2 |
| Charged device model ESD | CDM | -1000 |  | 1000 | V | Charged device model | 2 |
| Machine model ESD | MM | -200 |  | 200 | V | Machine model | 2 |
| Operating Temperature | TOPT | -55 |  | 125 | C |  | 2 |
| Storage Temperature | TSTG | -55 |  | 150 | C |  | 2 |

## CAD (KiCad official)

- Symbol: `TT0502PKX`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `tt0502pkx-etched.step` / `tt0502pkx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tt0502pkx.step` / `tt0502pkx.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen JingYang datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603181300677562368) (7 pp, sha256 `fa9377f0871a09a4`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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).

[Datasheet PDF](docs/tt0502pkx-datasheet.pdf)