component
1N5919BG
Public Made by Adomby adom
onsemi Zener Diodes, DO-41. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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1N5919BG
onsemi · Zener Diodes · DO-41
1N5919BG from onsemi, in a DO-41. 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 polarity band; the zener is reverse-biased with this pin positive, and the primary path of heat conduction is through this lead. |
| 2 | A | passive | Anode, the end opposite the polarity band; VF is 1.5 V max at IF = 200 mAdc when forward biased. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | DO-41 |
| 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 | 5.32 | 5.6 | 5.88 | V | @ IZT, TL = 30C | 3 |
| Zener Test Current | IZT | 66.9 | mA | TL = 30C | 3 | ||
| Maximum Zener Impedance | ZZT | 2 | Ω | @ IZT | 3 | ||
| Maximum Zener Impedance | ZZK | 250 | Ω | @ IZK = 1 mA | 3 | ||
| Reverse Leakage Current | IR | 5 | mA | @ VR = 3 V | 3 | ||
| Maximum DC Zener Current | IZM | 267 | mA | 3 | |||
| Forward Voltage | VF | 1.5 | V | IF = 200 mAdc | 2 | ||
| Max. Steady State Power Dissipation | PD | 3 | W | @TL = 75C, Lead Length = 3/8; derate 24 mW/C above 75C | 1 | ||
| Steady State Power Dissipation | PD | 1 | W | @TA = 50C; derate 6.67 mW/C above 50C | 1 | ||
| Operating and Storage Temperature Range | TJ, Tstg | -65 | 200 | C | 1 | ||
| Zener Voltage Tolerance | -5 | 5 | % | B suffix | 3 |
CAD (KiCad official)
- Symbol:
1N5919BG - Footprint:
Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal - 3D model: DO-41 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (8 pp, sha256
f19ac2e0114103c0, retrieved 2026-10-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).
# 1N5919BG
**onsemi** · Zener Diodes · DO-41
1N5919BG from onsemi, in a DO-41. 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 polarity band; the zener is reverse-biased with this pin positive, and the primary path of heat conduction is through this lead. |
| 2 | A | passive | Anode, the end opposite the polarity band; VF is 1.5 V max at IF = 200 mAdc when forward biased. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | DO-41 |
| 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 | 5.32 | 5.6 | 5.88 | V | @ IZT, TL = 30C | 3 |
| Zener Test Current | IZT | | 66.9 | | mA | TL = 30C | 3 |
| Maximum Zener Impedance | ZZT | | | 2 | Ω | @ IZT | 3 |
| Maximum Zener Impedance | ZZK | | | 250 | Ω | @ IZK = 1 mA | 3 |
| Reverse Leakage Current | IR | | | 5 | mA | @ VR = 3 V | 3 |
| Maximum DC Zener Current | IZM | | | 267 | mA | | 3 |
| Forward Voltage | VF | | | 1.5 | V | IF = 200 mAdc | 2 |
| Max. Steady State Power Dissipation | PD | | | 3 | W | @TL = 75C, Lead Length = 3/8; derate 24 mW/C above 75C | 1 |
| Steady State Power Dissipation | PD | | | 1 | W | @TA = 50C; derate 6.67 mW/C above 50C | 1 |
| Operating and Storage Temperature Range | TJ, Tstg | -65 | | 200 | C | | 1 |
| Zener Voltage Tolerance | | -5 | | 5 | % | B suffix | 3 |
## CAD (KiCad official)
- Symbol: `1N5919BG`
- Footprint: `Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal`
- 3D model: DO-41 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/1n5919b-d.pdf) (8 pp, sha256 `f19ac2e0114103c0`, retrieved 2026-10-23, tier: manufacturer)
- **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/1n5919bg-datasheet.pdf)