component
B340LB-E3
Public Made by Adomby adom
Vishay Intertech Schottky Barrier Diodes (SBD), DO-214AA(SMB). 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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Contents
README
markdownB340LB-E3
Vishay Intertech · Schottky Barrier Diodes (SBD) · DO-214AA(SMB)
B340LB-E3 from Vishay Intertech, in a DO-214AA(SMB). 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 terminal, marked by the color band on the SMB (DO-214AA) package; the 40 V VRRM rated Schottky rectifier conducts 3.0 A average forward current from anode to cathode. |
| 2 | A | passive | Anode terminal of the single Schottky rectifier, with VF of 0.34 V typical at IF = 3.0 A and TJ = 125 °C. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Vishay Intertech |
| Package | DO-214AA(SMB) |
| 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 |
|---|---|---|---|---|---|---|---|
| Maximum instantaneous forward voltage | VF | 0.43 | 0.45 | V | 3.0 A, TJ = 25 °C | 1 | |
| Maximum instantaneous forward voltage | VF | 0.34 | 0.38 | V | 3.0 A, TJ = 125 °C | 1 | |
| Maximum reverse current | IR | 0.4 | mA | Rated VR, TJ = 25 °C | 1 | ||
| Maximum reverse current | IR | 26 | 40 | mA | Rated VR, TJ = 125 °C | 1 | |
| Maximum repetitive peak reverse voltage | VRRM | 40 | V | TA = 25 °C | 1 | ||
| Maximum RMS voltage | VRMS | 28 | V | TA = 25 °C | 1 | ||
| Maximum DC blocking voltage | VDC | 40 | V | TA = 25 °C | 1 | ||
| Maximum average forward rectified current | IF(AV) | 3 | A | at TL (fig. 1) | 1 | ||
| Peak forward surge current | IFSM | 100 | A | 8.3 ms single half sine-wave superimposed on rated load | 1 | ||
| Voltage rate of change | dV/dt | 10000 | V/μs | rated VR | 1 | ||
| Operating junction and storage temperature range | TJ, TSTG | -65 | 150 | °C | 1 | ||
| Typical thermal resistance junction to ambient | RθJA | 70 | °C/W | TA = 25 °C | 2 | ||
| Typical thermal resistance junction to lead | RθJL | 25 | °C/W | TA = 25 °C | 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 | tin | Terminals: matte tin plated leads, solderable per J-STD-002 and JESD 22-B102 | 1 |
CAD (KiCad official)
- Symbol:
B340LB-E3 - Footprint:
Diode_SMD:D_SMB - 3D model: DO-214AA(SMB) (KiCad packages3D, STEP)
- 3D model files:
b340lb-e3-etched.step/b340lb-e3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);b340lb-e3.step/b340lb-e3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Vishay Intertech datasheet (4 pp, sha256
aacee35dd95752bd, retrieved 2026-10-22, 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).