# FDS4542-NL-VB

**VBsemi Elec** · MOSFETs · SO-8

FDS4542-NL-VB from VBsemi Elec, in a SO-8. 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 | S1 | passive | Source of MOSFET 1 (N-channel, VDS 30 V, ID 8 A package limited at TC = 25 °C). |
| 2 | G1 | input | Gate of MOSFET 1 (N-channel), absolute maximum VGS ±20 V. |
| 3 | S2 | passive | Source of MOSFET 2 (P-channel, VDS -30 V, ID -8 A package limited at TC = 25 °C). |
| 4 | G2 | input | Gate of MOSFET 2 (P-channel), absolute maximum VGS ±20 V. |
| 5 | D2 | passive | Drain of MOSFET 2 (P-channel), pulsed drain current IDM -40 A; shorted internally to pin 6. |
| 6 | D2 | passive | Drain of MOSFET 2 (P-channel), pulsed drain current IDM -40 A; shorted internally to pin 5. |
| 7 | D1 | passive | Drain of MOSFET 1 (N-channel), pulsed drain current IDM 40 A; shorted internally to pin 8. |
| 8 | D1 | passive | Drain of MOSFET 1 (N-channel), pulsed drain current IDM 40 A; shorted internally to pin 7. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | VBsemi Elec |
| Package | SO-8 |
| Category | Triode/MOS Tube/Transistor |
| Pins | 8 |

## 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 Voltage N-Ch | VDS |  |  | 30 | V | TA = 25 °C, N-Ch | 1 |
| Drain-Source Voltage P-Ch | VDS |  |  | -30 | V | TA = 25 °C, P-Ch | 1 |
| Gate-Source Voltage | VGS | -20 |  | 20 | V | N-Ch and P-Ch | 1 |
| Continuous Drain Current N-Ch | ID |  |  | 8 | A | TJ = 150 °C, TC = 25 °C, N-Ch, package limited | 1 |
| Continuous Drain Current P-Ch | ID |  |  | -8 | A | TJ = 150 °C, TC = 25 °C, P-Ch, package limited | 1 |
| Pulsed Drain Current N-Ch | IDM |  |  | 40 | A | 10 µs pulse width, N-Ch | 1 |
| Pulsed Drain Current P-Ch | IDM |  |  | -40 | A | 10 µs pulse width, P-Ch | 1 |
| Source-Drain Diode Current N-Ch | IS |  |  | 2.6 | A | TC = 25 °C, N-Ch | 1 |
| Source-Drain Diode Current P-Ch | IS |  |  | -2.6 | A | TC = 25 °C, P-Ch | 1 |
| Single Pulse Avalanche Current N-Ch | IAS |  |  | 10 | A | L = 0.1 mH, N-Ch | 1 |
| Single Pulse Avalanche Current P-Ch | IAS |  |  | 20 | A | L = 0.1 mH, P-Ch | 1 |
| Operating Junction and Storage Temperature Range | TJ, Tstg | -55 |  | 150 | °C |  | 1 |
| Junction-to-Ambient Thermal Resistance N-Ch | RthJA |  | 50 | 62.5 | °C/W | t ≤ 10 s, N-Ch | 1 |
| Junction-to-Ambient Thermal Resistance P-Ch | RthJA |  | 47 | 62.5 | °C/W | t ≤ 10 s, P-Ch | 1 |
| Junction-to-Foot Thermal Resistance N-Ch | RthJF |  | 30 | 40 | °C/W | Steady state, N-Ch | 1 |
| Junction-to-Foot Thermal Resistance P-Ch | RthJF |  | 29 | 38 | °C/W | Steady state, P-Ch | 1 |
| Drain-Source Breakdown Voltage N-Ch | VDS | 30 |  |  | V | VGS = 0 V, ID = 250 µA, N-Ch | 2 |
| Drain-Source Breakdown Voltage P-Ch | VDS | -30 |  |  | V | VGS = 0 V, ID = -250 µA, P-Ch | 2 |
| Gate Threshold Voltage N-Ch | VGS(th) | 1 |  | 2 | V | VDS = VGS, ID = 250 µA, N-Ch | 2 |
| Gate Threshold Voltage P-Ch | VGS(th) | -2 |  | -1 | V | VDS = VGS, ID = -250 µA, P-Ch | 2 |
| Gate-Body Leakage N-Ch | IGSS | -100 |  | 100 | nA | VDS = 0 V, VGS = ± 12 V, N-Ch | 2 |
| Gate-Body Leakage P-Ch | IGSS | -100 |  | 100 | nA | VDS = 0 V, VGS = ± 12 V, P-Ch | 2 |
| Zero Gate Voltage Drain Current N-Ch | IDSS |  |  | 1 | µA | VDS = 30 V, VGS = 0 V, N-Ch | 2 |
| Zero Gate Voltage Drain Current P-Ch | IDSS |  |  | -1 | µA | VDS = -30 V, VGS = 0 V, P-Ch | 2 |
| Zero Gate Voltage Drain Current N-Ch hot | IDSS |  |  | 10 | µA | VDS = 30 V, VGS = 0 V, TJ = 55 °C, N-Ch | 2 |
| Zero Gate Voltage Drain Current P-Ch hot | IDSS |  |  | -10 | µA | VDS = -30 V, VGS = 0 V, TJ = 55 °C, P-Ch | 2 |
| On-State Drain Current N-Ch | ID(on) | 20 |  |  | A | VDS = 5 V, VGS = 10 V, N-Ch | 2 |
| On-State Drain Current P-Ch | ID(on) | -20 |  |  | A | VDS = -5 V, VGS = -10 V, P-Ch | 2 |
| Drain-Source On-State Resistance P-Ch | RDS(on) |  | 0.04 |  | Ω | VGS = -10 V, ID = -8 A, P-Ch | 2 |
| Drain-Source On-State Resistance N-Ch | RDS(on) |  | 0.02 |  | Ω | VGS = 8 V, ID = 6.7 A, N-Ch | 2 |
| Drain-Source On-State Resistance P-Ch | RDS(on) |  | 0.044 |  | Ω | VGS = -8 V, ID = -6.5 A, P-Ch | 2 |
| Drain-Source On-State Resistance N-Ch | RDS(on) |  | 0.024 |  | Ω | VGS = 4.5 V, ID = 6.6 A, N-Ch | 2 |
| Drain-Source On-State Resistance P-Ch | RDS(on) |  | 0.05 |  | Ω | VGS = -4.5 V, ID = -5 A, P-Ch | 2 |
| Forward Transconductance N-Ch | gfs |  | 27 |  | S | VDS = 15 V, ID = 6.8 A, N-Ch | 2 |
| Forward Transconductance P-Ch | gfs |  | 25 |  | S | VDS = -15 V, ID = -6.7 A, P-Ch | 2 |
| Body Diode Voltage N-Ch | VSD |  | 0.81 | 1.2 | V | IS = 5.4 A, N-Ch | 3 |
| Body Diode Voltage P-Ch | VSD |  | -0.77 | -1.2 | V | IS = -2 A, P-Ch | 3 |
| Pulse Diode Forward Current N-Ch | ISM |  |  | 40 | A | N-Ch | 3 |
| Pulse Diode Forward Current P-Ch | ISM |  |  | -40 | A | P-Ch | 3 |

## CAD (KiCad official)

- Symbol: `FDS4542-NL-VB`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files: `fds4542-nl-vb-etched.step` / `fds4542-nl-vb-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fds4542-nl-vb.step` / `fds4542-nl-vb.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [VBsemi Elec datasheet](docs/fds4542-nl-vb-datasheet.pdf) (14 pp, sha256 `faecb0836105d20e`, retrieved 2026-10-27, tier: lcsc)
- **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/fds4542-nl-vb-datasheet.pdf)