component
BAT42
Public Made by Adomby adom
STMicroelectronics Schottky Barrier Diodes (SBD), DO-35. Unpolarised two-terminal part: the datasheet prints no pin numbers, so pins 1 and 2 follow the library convention, KiCad symbol/footprint/3D.
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BAT42
STMicroelectronics · Schottky Barrier Diodes (SBD) · DO-35
BAT42 from STMicroelectronics, in a DO-35. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DO-35 |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 30 | V | 1 | |||
| Forward Continuous Current | IF | 200 | mA | Ta = 25°C | 1 | ||
| Repetitive Peak Forward Current | IFRM | 500 | mA | tp ≤ 1s, δ ≤ 0.5 | 1 | ||
| Surge non Repetitive Forward Current | IFSM | 4 | A | tp = 10ms | 1 | ||
| Power Dissipation | Ptot | 200 | mW | Tl = 65 °C | 1 | ||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 1 | ||
| Junction Temperature Range | Tj | -65 | 125 | °C | 1 | ||
| Maximum Temperature for Soldering | TL | 230 | °C | during 10s at 4mm from case | 1 | ||
| Thermal resistance junction-ambient | Rth(j-a) | 300 | °C/W | On infinite heatsink with 4mm lead length | 1 | ||
| Breakdown Voltage | VBR | 30 | V | Tj = 25°C, IR = 100µA | 2 | ||
| Forward Voltage (All Types) | VF | 1 | V | Tj = 25°C, IF = 200mA | 2 | ||
| Forward Voltage (BAT 42) | VF | 0.4 | V | Tj = 25°C, IF = 10mA | 2 | ||
| Forward Voltage (BAT 42) | VF | 0.65 | V | Tj = 25°C, IF = 50mA | 2 | ||
| Reverse Current | IR | 0.5 | µA | Tj = 25°C, VR = 25V | 2 | ||
| Reverse Current | IR | 100 | µA | Tj = 100°C | 2 | ||
| Diode Capacitance | C | 7 | pF | Tj = 25°C, VR = 1V, f = 1MHz | 2 | ||
| Reverse Recovery Time | trr | 5 | ns | Tj = 25°C, IF = 10mA, IR = 10mA, irr = 1mA, RL = 100Ω | 2 | ||
| Rectification Efficiency | h | 80 | % | Tj = 25°C, RL = 15KΩ, CL = 300pF, f = 45MHz, Vi = 2V | 2 |
CAD (KiCad official)
- Symbol:
BAT42 - Footprint:
Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal - 3D model: DO-35 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (4 pp, sha256
7183662e8f7070cf, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins, primarycathode-band convention(convention), consensusoff(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).
# BAT42
**STMicroelectronics** · Schottky Barrier Diodes (SBD) · DO-35
BAT42 from STMicroelectronics, in a DO-35. 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: the banded/marked end per the datasheet; pad 1 of the KiCad diode footprint. |
| 2 | A | passive | Anode. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DO-35 |
| 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 |
|---|---|---|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | | | 30 | V | | 1 |
| Forward Continuous Current | IF | | | 200 | mA | Ta = 25°C | 1 |
| Repetitive Peak Forward Current | IFRM | | | 500 | mA | tp ≤ 1s, δ ≤ 0.5 | 1 |
| Surge non Repetitive Forward Current | IFSM | | | 4 | A | tp = 10ms | 1 |
| Power Dissipation | Ptot | | | 200 | mW | Tl = 65 °C | 1 |
| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 1 |
| Junction Temperature Range | Tj | -65 | | 125 | °C | | 1 |
| Maximum Temperature for Soldering | TL | | | 230 | °C | during 10s at 4mm from case | 1 |
| Thermal resistance junction-ambient | Rth(j-a) | | | 300 | °C/W | On infinite heatsink with 4mm lead length | 1 |
| Breakdown Voltage | VBR | 30 | | | V | Tj = 25°C, IR = 100µA | 2 |
| Forward Voltage (All Types) | VF | | | 1 | V | Tj = 25°C, IF = 200mA | 2 |
| Forward Voltage (BAT 42) | VF | | | 0.4 | V | Tj = 25°C, IF = 10mA | 2 |
| Forward Voltage (BAT 42) | VF | | | 0.65 | V | Tj = 25°C, IF = 50mA | 2 |
| Reverse Current | IR | | | 0.5 | µA | Tj = 25°C, VR = 25V | 2 |
| Reverse Current | IR | | | 100 | µA | Tj = 100°C | 2 |
| Diode Capacitance | C | | | 7 | pF | Tj = 25°C, VR = 1V, f = 1MHz | 2 |
| Reverse Recovery Time | trr | | | 5 | ns | Tj = 25°C, IF = 10mA, IR = 10mA, irr = 1mA, RL = 100Ω | 2 |
| Rectification Efficiency | h | 80 | | | % | Tj = 25°C, RL = 15KΩ, CL = 300pF, f = 45MHz, Vi = 2V | 2 |
## CAD (KiCad official)
- Symbol: `BAT42`
- Footprint: `Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal`
- 3D model: DO-35 (KiCad packages3D, STEP)
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [STMicroelectronics datasheet](docs/bat42-datasheet.pdf) (4 pp, sha256 `7183662e8f7070cf`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins`, primary `cathode-band convention` (convention), consensus `off` (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/bat42-datasheet.pdf)