component
1SMA5922BT3G
Public Made by Adomby adom
onsemi Zener Diodes, SMA. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown1SMA5922BT3G
onsemi · Zener Diodes · SMA
1SMA5922BT3G 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 1.5 W Zener regulator, marked by the molded polarity notch or cathode band; the datasheet gives no pin-specific limit, so use the device ratings (DC power dissipation 1.5 W at TL = 75 °C, operating and storage range −65 to +150 °C). |
| 2 | ANODE | passive | Anode of the Zener regulator; forward conduction is specified at VF = 1.5 V maximum at IF = 200 mA for all types. |
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 |
|---|---|---|---|---|---|---|---|
| Reverse Zener Voltage (1SMA5922BT3G, 5% type) | VZ | 7.12 | 7.5 | 7.88 | V | @ IZT = 50 mA; VZ guaranteed at thermal equilibrium (Note 4) | 2 |
| Maximum Zener Impedance | ZZT | 3 | Ω | @ IZT = 50 mA | 2 | ||
| Maximum Zener Impedance | ZZK | 400 | Ω | @ IZK = 0.5 mA | 2 | ||
| Reverse Leakage Current | IR | 2.5 | µA | @ VR = 6.0 V | 2 | ||
| Forward Voltage | VF | 1.5 | V | @ IF = 200 mA, for all types | 2 | ||
| Maximum DC Zener Current | IZM | 200 | mA | 2 | |||
| Voltage tolerance (type number designation) | -5 | 5 | % | Type number listed indicates 5% tolerance (Note 3) | 2 | ||
| DC Power Dissipation | PD | 1.5 | W | TL = 75°C, measured zero lead length (Note 1) | 1 | ||
| Derating above TL | PD | 20 | mW/°C | Derate above TL = 75°C | 1 | ||
| DC Power Dissipation | PD | 0.5 | W | TA = 25°C (Note 2) | 1 | ||
| Derating above TA | PD | 4 | mW/°C | Derate above TA = 25°C | 1 | ||
| Operating and Storage Temperature Range | TJ, Tstg | -65 | 150 | °C | 1 | ||
| Thermal Resistance, Junction-to-Lead | RJL | 50 | °C/W | Junction-to-lead, 1 in² copper pad, FR-4 (Note 1) | 1 | ||
| Thermal Resistance, Junction-to-Ambient | RJA | 250 | °C/W | Junction-to-ambient, FR-4, minimum recommended footprint (Note 2) | 1 |
CAD (KiCad official)
- Symbol:
1SMA5922BT3G - Footprint:
Diode_SMD:D_SMA - 3D model: SMA (KiCad packages3D, STEP)
- 3D model files:
1sma5922bt3g-etched.step/1sma5922bt3g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1sma5922bt3g.step/1sma5922bt3g.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).