1SMA5932BT3G

onsemi · Zener Diodes · SMA

1SMA5932BT3G from onsemi, in a 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	CATHODE	passive	Cathode of the Zener diode, identified by the polarity band or molded notch on the SMA package; the 1SMA5932BT3G has a nominal Zener voltage of 20 V.
2	ANODE	passive	Anode of the Zener diode, at the end opposite the cathode band; the series is rated for 1.5 W DC power dissipation at TL = 75°C.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	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	19	20	21	V	@ IZT = 18.7 mA; limits guaranteed at thermal equilibrium (Note 4)	2
Voltage tolerance (type number designation)		-5		5	%	Type number indicates 5% tolerance (Note 3)	2
Reverse leakage current	IR			0.5	uA	@ VR = 15.2 V	2
Maximum Zener impedance	ZZT			14	Ω	@ IZT = 18.7 mA	2
Maximum Zener impedance	ZZK			650	Ω	@ IZK = 0.25 mA	2
Maximum DC Zener current	IZM			75	mA(dc)		2
DC power dissipation at lead temperature	PD			1.5	W	@ TL = 75°C, measured zero lead length (Note 1)	1
DC power dissipation at ambient temperature	PD			0.5	W	@ TA = 25°C (Note 2)	1
Operating and storage temperature range	TJ, Tstg	-65		150	°C		1
Derating above 75°C (lead)	PD		20		mW/°C	derate above TL = 75°C	1
Derating above 25°C (ambient)	PD		4		mW/°C	derate above TA = 25°C	1
Thermal resistance, junction-to-lead	RθJL		50		°C/W	zero lead length, 1 in² copper pad, FR-4 (Note 1)	1
Thermal resistance, junction-to-ambient	RθJA		250		°C/W	FR-4 board, ON Semiconductor minimum recommended footprint (Note 2)	1

CAD (KiCad official)

Symbol: 1SMA5932BT3G
Footprint: Diode_SMD:D_SMA
3D model: SMA (KiCad packages3D, STEP)
3D model files: 1sma5932bt3g-etched.step / 1sma5932bt3g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 1sma5932bt3g.step / 1sma5932bt3g.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (5 pp, sha256 1ca169f64a35c9ee, retrieved 2026-10-21, tier: manufacturer)
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

# 1SMA5932BT3G

**onsemi** · Zener Diodes · SMA

1SMA5932BT3G from onsemi, in a 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 | CATHODE | passive | Cathode of the Zener diode, identified by the polarity band or molded notch on the SMA package; the 1SMA5932BT3G has a nominal Zener voltage of 20 V. |
| 2 | ANODE | passive | Anode of the Zener diode, at the end opposite the cathode band; the series is rated for 1.5 W DC power dissipation at TL = 75°C. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | 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 | 19 | 20 | 21 | V | @ IZT = 18.7 mA; limits guaranteed at thermal equilibrium (Note 4) | 2 |
| Voltage tolerance (type number designation) |  | -5 |  | 5 | % | Type number indicates 5% tolerance (Note 3) | 2 |
| Reverse leakage current | IR |  |  | 0.5 | uA | @ VR = 15.2 V | 2 |
| Maximum Zener impedance | ZZT |  |  | 14 | Ω | @ IZT = 18.7 mA | 2 |
| Maximum Zener impedance | ZZK |  |  | 650 | Ω | @ IZK = 0.25 mA | 2 |
| Maximum DC Zener current | IZM |  |  | 75 | mA(dc) |  | 2 |
| DC power dissipation at lead temperature | PD |  |  | 1.5 | W | @ TL = 75°C, measured zero lead length (Note 1) | 1 |
| DC power dissipation at ambient temperature | PD |  |  | 0.5 | W | @ TA = 25°C (Note 2) | 1 |
| Operating and storage temperature range | TJ, Tstg | -65 |  | 150 | °C |  | 1 |
| Derating above 75°C (lead) | PD |  | 20 |  | mW/°C | derate above TL = 75°C | 1 |
| Derating above 25°C (ambient) | PD |  | 4 |  | mW/°C | derate above TA = 25°C | 1 |
| Thermal resistance, junction-to-lead | RθJL |  | 50 |  | °C/W | zero lead length, 1 in² copper pad, FR-4 (Note 1) | 1 |
| Thermal resistance, junction-to-ambient | RθJA |  | 250 |  | °C/W | FR-4 board, ON Semiconductor minimum recommended footprint (Note 2) | 1 |

## CAD (KiCad official)

- Symbol: `1SMA5932BT3G`
- Footprint: `Diode_SMD:D_SMA`
- 3D model: SMA (KiCad packages3D, STEP)
- 3D model files: `1sma5932bt3g-etched.step` / `1sma5932bt3g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `1sma5932bt3g.step` / `1sma5932bt3g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/1sma5932bt3-d.pdf) (5 pp, sha256 `1ca169f64a35c9ee`, retrieved 2026-10-21, tier: manufacturer)
- **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/1sma5932bt3g-datasheet.pdf)