component
IMBD4148-E3-08
Public Made by Adomby adom
Vishay Intertech Switching Diodes, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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IMBD4148-E3-08
Vishay Intertech · Switching Diodes · SOT-23
IMBD4148-E3-08 from Vishay Intertech, in a SOT-23. 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 | A | passive | Anode of the single diode; reverse voltage VR is rated 75 V (VRM 100 V) and average rectified current IF(AV) is 150 mA. |
| 2 | NC | unconnected | Not connected internally; the pin 2 terminal has no connection to the diode in the package schematic. |
| 3 | K | passive | Cathode of the single diode; surge forward current IFSM is 500 mA (t < 1 s) and forward voltage is 1.0 V max at IF = 10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
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 voltage | VR | 75 | V | 1 | |||
| Peak reverse voltage | VRM | 100 | V | 1 | |||
| Rectified current (average) | IF(AV) | 150 | mA | half wave rectification with resist. (1) f 50 Hz | 1 | ||
| Surge forward current | IFSM | 500 | mA | t < 1 s, Tj = 25 °C | 1 | ||
| Power dissipation | Ptot | 350 | mW | up to Tamb = 25 °C (1) | 1 | ||
| Thermal resistance junction to ambient air | RthJA | 450 | °C/W | (1) device on fiberglass substrate | 1 | ||
| Junction temperature | Tj | 150 | °C | 1 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 1 | ||
| Operating temperature range | Top | -55 | 150 | °C | 1 | ||
| Forward voltage | VF | 1 | V | IF = 10 mA | 2 | ||
| Leakage current | IR | 2500 | nA | VR = 70 V | 2 | ||
| Leakage current | IR | 50 | μA | VR = 70 V, Tj = 150 °C | 2 | ||
| Leakage current | IR | 30 | μA | VR = 25 V, Tj = 150 °C | 2 | ||
| Diode capacitance | CD | 4 | pF | VF = VR = 0 | 2 | ||
| Reverse recovery time | trr | 4 | ns | IF = 10 mA to iR = 1 mA, VR = 6 V, RL = 100 Ω (see figures) | 2 |
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 | Copper | Copper leads 0.3 mm (0.012 inches) | 2 |
CAD (KiCad official)
- Symbol:
IMBD4148-E3-08 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
imbd4148-e3-08-etched.step/imbd4148-e3-08-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);imbd4148-e3-08.step/imbd4148-e3-08.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (5 pp, sha256
30861837af31030e, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).
# IMBD4148-E3-08
**Vishay Intertech** · Switching Diodes · SOT-23
IMBD4148-E3-08 from Vishay Intertech, in a SOT-23. 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 | A | passive | Anode of the single diode; reverse voltage VR is rated 75 V (VRM 100 V) and average rectified current IF(AV) is 150 mA. |
| 2 | NC | unconnected | Not connected internally; the pin 2 terminal has no connection to the diode in the package schematic. |
| 3 | K | passive | Cathode of the single diode; surge forward current IFSM is 500 mA (t < 1 s) and forward voltage is 1.0 V max at IF = 10 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | SOT-23 |
| Category | Diodes |
| Pins | 3 |
## 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 voltage | VR | | | 75 | V | | 1 |
| Peak reverse voltage | VRM | | | 100 | V | | 1 |
| Rectified current (average) | IF(AV) | | | 150 | mA | half wave rectification with resist. (1) f 50 Hz | 1 |
| Surge forward current | IFSM | | | 500 | mA | t < 1 s, Tj = 25 °C | 1 |
| Power dissipation | Ptot | | | 350 | mW | up to Tamb = 25 °C (1) | 1 |
| Thermal resistance junction to ambient air | RthJA | | | 450 | °C/W | (1) device on fiberglass substrate | 1 |
| Junction temperature | Tj | | | 150 | °C | | 1 |
| Storage temperature range | Tstg | -65 | | 150 | °C | | 1 |
| Operating temperature range | Top | -55 | | 150 | °C | | 1 |
| Forward voltage | VF | | | 1 | V | IF = 10 mA | 2 |
| Leakage current | IR | | | 2500 | nA | VR = 70 V | 2 |
| Leakage current | IR | | | 50 | μA | VR = 70 V, Tj = 150 °C | 2 |
| Leakage current | IR | | | 30 | μA | VR = 25 V, Tj = 150 °C | 2 |
| Diode capacitance | CD | | | 4 | pF | VF = VR = 0 | 2 |
| Reverse recovery time | trr | | | 4 | ns | IF = 10 mA to iR = 1 mA, VR = 6 V, RL = 100 Ω (see figures) | 2 |
## 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 | Copper | | Copper leads 0.3 mm (0.012 inches) | 2 |
## CAD (KiCad official)
- Symbol: `IMBD4148-E3-08`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `imbd4148-e3-08-etched.step` / `imbd4148-e3-08-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `imbd4148-e3-08.step` / `imbd4148-e3-08.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Vishay Intertech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590225610946469888) (5 pp, sha256 `30861837af31030e`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/imbd4148-e3-08-datasheet.pdf)