SMA4762A

Yangzhou Yangjie Elec Tech · Zener Diodes · DO-214AC(SMA)

SMA4762A from Yangzhou Yangjie Elec Tech, in a DO-214AC(SMA). 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	K	passive	Cathode, marked by the cathode line on the package; the Zener (SMA4762A: 82 V typ. at IZT = 3.0 mA) is reverse-biased with this pin positive relative to the anode.
2	A	passive	Anode terminal of the Zener diode, the end opposite the cathode line; maximum forward voltage 1.2 V at IF = 200 mA.

Key specifications

Parameter	Value
Manufacturer	Yangzhou Yangjie Elec Tech
Package	DO-214AC(SMA)
Category	Diodes
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
Zener voltage	VZ	77.9	82	86.1	V	at IZT = 3.0 mA	2
Zener test current	IZT		3		mA		2
Maximum dynamic impedance	ZZT			200	Ω	at IZT	2
Maximum knee dynamic impedance	ZZK			3000	Ω	at IZK = 0.25 mA	2
Maximum reverse leakage current	IR			5	μA	VR = 62.2 V	2
Maximum DC Zener current	IZM			11	mA		2
DC power dissipation	PD			1	W	TL = 75 °C	1
Maximum instantaneous forward voltage	VF			1.2	V	IF = 200 mA	1
Maximum junction temperature	Tj	-55		150	℃	Ta=25℃	1
Storage temperature range	Tstg	-55		150	℃		1
Thermal resistance junction to lead	RθJ-L		30		℃/W	junction to lead, mounted on P.C.B. with 5.0 mm x 5.0 mm copper pad areas	1
Thermal resistance junction to ambient	RθJ-A		170		℃/W	junction to ambient, mounted on P.C.B. with 5.0 mm x 5.0 mm copper pad areas	1

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: Tin plated leads, solderable per J-STD-002 and JESD22-B102	1

CAD (KiCad official)

Symbol: SMA4762A
Footprint: Diode_SMD:D_SMA
3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
3D model files: sma4762a-etched.step / sma4762a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sma4762a.step / sma4762a.glb are the bare package body.

Provenance

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

Datasheet: Yangzhou Yangjie Elec Tech datasheet (6 pp, sha256 88e2808cdc3f5d14, retrieved 2026-10-22, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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

# SMA4762A

**Yangzhou Yangjie Elec Tech** · Zener Diodes · DO-214AC(SMA)

SMA4762A from Yangzhou Yangjie Elec Tech, in a DO-214AC(SMA). 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 | K | passive | Cathode, marked by the cathode line on the package; the Zener (SMA4762A: 82 V typ. at IZT = 3.0 mA) is reverse-biased with this pin positive relative to the anode. |
| 2 | A | passive | Anode terminal of the Zener diode, the end opposite the cathode line; maximum forward voltage 1.2 V at IF = 200 mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Yangzhou Yangjie Elec Tech |
| Package | DO-214AC(SMA) |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Zener voltage | VZ | 77.9 | 82 | 86.1 | V | at IZT = 3.0 mA | 2 |
| Zener test current | IZT |  | 3 |  | mA |  | 2 |
| Maximum dynamic impedance | ZZT |  |  | 200 | Ω | at IZT | 2 |
| Maximum knee dynamic impedance | ZZK |  |  | 3000 | Ω | at IZK = 0.25 mA | 2 |
| Maximum reverse leakage current | IR |  |  | 5 | μA | VR = 62.2 V | 2 |
| Maximum DC Zener current | IZM |  |  | 11 | mA |  | 2 |
| DC power dissipation | PD |  |  | 1 | W | TL = 75 °C | 1 |
| Maximum instantaneous forward voltage | VF |  |  | 1.2 | V | IF = 200 mA | 1 |
| Maximum junction temperature | Tj | -55 |  | 150 | ℃ | Ta=25℃ | 1 |
| Storage temperature range | Tstg | -55 |  | 150 | ℃ |  | 1 |
| Thermal resistance junction to lead | RθJ-L |  | 30 |  | ℃/W | junction to lead, mounted on P.C.B. with 5.0 mm x 5.0 mm copper pad areas | 1 |
| Thermal resistance junction to ambient | RθJ-A |  | 170 |  | ℃/W | junction to ambient, mounted on P.C.B. with 5.0 mm x 5.0 mm copper pad areas | 1 |

## 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: Tin plated leads, solderable per J-STD-002 and JESD22-B102 | 1 |

## CAD (KiCad official)

- Symbol: `SMA4762A`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: DO-214AC(SMA) (KiCad packages3D, STEP)
- 3D model files: `sma4762a-etched.step` / `sma4762a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sma4762a.step` / `sma4762a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Yangzhou Yangjie Elec Tech datasheet](docs/sma4762a-datasheet.pdf) (6 pp, sha256 `88e2808cdc3f5d14`, retrieved 2026-10-22, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/sma4762a-datasheet.pdf)