component
BF 2040 E6814
Public Made by Adomby adom
Infineon Technologies MOSFETs, SOT-143. 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
markdownBF 2040 E6814
Infineon Technologies · MOSFETs · SOT-143
BF 2040 E6814 from Infineon Technologies, in a SOT-143. 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 | S | passive | Source terminal of the MOSFET tetrode; total power dissipation is limited to 200 mW at TS ≤ 76 °C for the SOT143 package. |
| 2 | D | passive | Drain terminal; drain-source voltage is limited to 8 V maximum and continuous drain current to 40 mA. |
| 3 | G2 | input | Gate 2 control input used for gain control; gate 1/gate 2-source current is limited to ±10 mA and gate 2-source breakdown voltage is 6 V min to 15 V max. |
| 4 | G1 | input | Gate 1 signal input; external biasing voltage is limited to +7 V maximum and gate 1/gate 2-source current to ±10 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOT-143 |
| Category | Transistors |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Drain-source breakdown voltage | V(BR)DS | 10 | V | ID = 20 µA, VG1S = 0, VG2S = 0 | 2 | ||
| Gate1-source breakdown voltage | +V(BR)G1SS | 6 | 15 | V | +IG1S = 10 mA, VG2S = 0, VDS = 0 | 2 | |
| Gate2-source breakdown voltage | +V(BR)G2SS | 6 | 15 | V | +IG2S = 10 mA, VG1S = 0, VDS = 0 | 2 | |
| Gate1-source leakage current | +IG1SS | 50 | nA | VG1S = 5 V, VG2S = 0, VDS = 0 | 2 | ||
| Gate2-source leakage current | +IG2SS | 50 | nA | VG2S = 5 V, VG1S = 0, VDS = 0 | 2 | ||
| Drain current | IDSS | 50 | µA | VDS = 5 V, VG1S = 0, VG2S = 4 V | 2 | ||
| Gate1-source pinch-off voltage | VG1S(p) | 0.3 | 0.6 | V | VDS = 5 V, VG2S = 4 V, ID = 20 µA | 2 | |
| Gate2-source pinch-off voltage | VG2S(p) | 0.3 | 0.7 | V | VDS = 5 V, ID = 20 µA | 2 | |
| Forward transconductance | gfs | 37 | 42 | mS | VDS = 5 V, ID = 15 mA, VG2S = 4 V | 3 | |
| Gate1 input capacitance | Cg1ss | 2.9 | 3.4 | pF | VDS = 5 V, ID = 15 mA, VG2S = 4 V, f = 10 MHz | 3 | |
| Power gain | Gp | 20 | 23 | dB | VDS = 5 V, ID = 15 mA, VG2S = 4 V, f = 800 MHz | 3 | |
| Noise figure | F | 1.6 | 2.2 | dB | VDS = 5 V, ID = 15 mA, VG2S = 4 V, f = 800 MHz | 3 | |
| Gain control range | ∆Gp | 45 | 50 | dB | VDS = 5 V, VG2S = 4 ...0 V, f = 800 GHz | 3 | |
| Drain-source voltage | VDS | 8 | V | 1 | |||
| Continuous drain current | ID | 40 | mA | 1 | |||
| Gate 1/gate 2-source current | ±IG1/2SM | 10 | 1 | ||||
| Gate 1 (external biasing) | +VG1SE | 7 | V | 1 | |||
| Total power dissipation | Ptot | 200 | mW | TS ≤ 76 °C, BF2040 | 1 | ||
| Storage temperature | Tstg | -55 | 150 | °C | 1 | ||
| Channel temperature | Tch | 150 | °C | 1 | |||
| Channel - soldering point thermal resistance | Rthchs | 370 | K/W | BF2040 | 1 | ||
| Drain-source current | IDSX | 15 | mA | VDS = 5 V, VG2S = 4 V, RG1 = 100 kΩ | 2 | ||
| Output capacitance | Cdss | 1.6 | pF | VDS = 5 V, ID = 15 mA, VG2S = 4 V, f = 10 MHz | 3 |
CAD (KiCad official)
- Symbol:
BF 2040 E6814 - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
bf-2040-e6814-etched.step/bf-2040-e6814-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bf-2040-e6814.step/bf-2040-e6814.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (11 pp, sha256
30fffdcd0ca2ce31, retrieved 2026-10-22, tier: lcsc) - 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).