DDZX9V1C-13

Diodes Incorporated · Zener Diodes · SOT-23

DDZX9V1C-13 from Diodes Incorporated, 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	A	passive	Anode of the 9.1V precision zener (VZ 8.83V to 9.30V at IZT = 20mA), the lower-left terminal in the device schematic.
2	NC	unconnected	No internal connection; the lower-right terminal in the device schematic has no connection to the diode.
3	K	passive	Cathode of the zener diode, the single top terminal in the device schematic, which sits at the positive potential in normal reverse-breakdown operation.

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	SOT-23
Category	Diodes
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
Zener voltage (DDZX9V1C)	VZ	8.83		9.3	V	@ IZT = 20 mA; measured <40 ms after power supplied (Note 8)	2
Maximum Zener impedance	ZZT			8	Ω	@ IZT = 20 mA, f = 1 kHz	2
Maximum Zener impedance	ZZK			120	Ω	@ IZK = 0.5 mA, f = 1 kHz	2
Maximum reverse current	IR			0.5	µA	@ VR = 7.0 V	2
Power dissipation	PD			300	mW	Note 7: device mounted on FR-4 PCB with recommended pad layout	2
Thermal resistance, junction to ambient air	RJA		417		C/W	Note 7: device mounted on FR-4 PCB with recommended pad layout	2
Operating and storage temperature range	TJ, TSTG	-65		150	C		2

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		tin	 Terminals: Finish - Matte Tin Annealed over Alloy 42 Leadframe. Solderable per MIL-STD-202, Method 208	1

CAD (KiCad official)

Symbol: DDZX9V1C-13
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: ddzx9v1c-13-etched.step / ddzx9v1c-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ddzx9v1c-13.step / ddzx9v1c-13.glb are the bare package body.

Provenance

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

Datasheet: Diodes Incorporated datasheet (8 pp, sha256 f1abaaad1d27cb30, retrieved 2026-10-20, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF

# DDZX9V1C-13

**Diodes Incorporated** · Zener Diodes · SOT-23

DDZX9V1C-13 from Diodes Incorporated, 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 | A | passive | Anode of the 9.1V precision zener (VZ 8.83V to 9.30V at IZT = 20mA), the lower-left terminal in the device schematic. |
| 2 | NC | unconnected | No internal connection; the lower-right terminal in the device schematic has no connection to the diode. |
| 3 | K | passive | Cathode of the zener diode, the single top terminal in the device schematic, which sits at the positive potential in normal reverse-breakdown operation. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage (DDZX9V1C) | VZ | 8.83 |  | 9.3 | V | @ IZT = 20 mA; measured <40 ms after power supplied (Note 8) | 2 |
| Maximum Zener impedance | ZZT |  |  | 8 | Ω | @ IZT = 20 mA, f = 1 kHz | 2 |
| Maximum Zener impedance | ZZK |  |  | 120 | Ω | @ IZK = 0.5 mA, f = 1 kHz | 2 |
| Maximum reverse current | IR |  |  | 0.5 | µA | @ VR = 7.0 V | 2 |
| Power dissipation | PD |  |  | 300 | mW | Note 7: device mounted on FR-4 PCB with recommended pad layout | 2 |
| Thermal resistance, junction to ambient air | RJA |  | 417 |  | C/W | Note 7: device mounted on FR-4 PCB with recommended pad layout | 2 |
| Operating and storage temperature range | TJ, TSTG | -65 |  | 150 | C |  | 2 |

## 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 |  | tin |  Terminals: Finish - Matte Tin Annealed over Alloy 42 Leadframe. Solderable per MIL-STD-202, Method 208 | 1 |

## CAD (KiCad official)

- Symbol: `DDZX9V1C-13`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `ddzx9v1c-13-etched.step` / `ddzx9v1c-13-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ddzx9v1c-13.step` / `ddzx9v1c-13.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603074378154188800) (8 pp, sha256 `f1abaaad1d27cb30`, retrieved 2026-10-20, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).

[Datasheet PDF](docs/ddzx9v1c-13-datasheet.pdf)