# BFU530A

**NXP Semicon** · Bipolar (BJT) · SOT-23-3

BFU530A from NXP Semicon, in a SOT-23-3. 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 | B | input | Base terminal of the NPN transistor (Table 2 lists it as 'base'); the datasheet gives no pin-specific electrical limit for this lead. |
| 2 | E | passive | Emitter terminal of the NPN transistor (Table 2 lists it as 'emitter'); the datasheet gives no pin-specific electrical limit for this lead. |
| 3 | C | passive | Collector terminal of the NPN transistor (Table 2 lists it as 'collector'); Tsp is defined at the solder point of this lead, and the datasheet gives no pin-specific electrical limit for it. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | NXP Semicon |
| Package | SOT-23-3 |
| Category | Transistors/Thyristors |
| 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 |
|---|---|---|---|---|---|---|---|
| collector-base voltage | VCB |  |  | 30 | V | open emitter | 3 |
| collector-emitter voltage | VCE |  |  | 16 | V | open base | 3 |
| collector-emitter voltage | VCE |  |  | 30 | V | shorted base | 3 |
| emitter-base voltage | VEB |  |  | 3 | V | open collector | 3 |
| collector current | IC |  |  | 65 | mA |  | 3 |
| storage temperature | Tstg | -65 |  | 150 | C |  | 3 |
| electrostatic discharge voltage, Human Body Model | VESD |  |  | 150 | V | HBM according to JEDEC standard 22-A114E | 3 |
| electrostatic discharge voltage, Charged Device Model | VESD |  |  | 2 | kV | CDM according to JEDEC standard 22-C101B | 3 |
| collector-base voltage | VCB |  |  | 24 | V | open emitter | 3 |
| collector-emitter voltage | VCE |  |  | 12 | V | open base | 3 |
| collector-emitter voltage | VCE |  |  | 24 | V | shorted base | 3 |
| emitter-base voltage | VEB |  |  | 2 | V | open collector | 3 |
| collector current | IC |  |  | 40 | mA |  | 3 |
| input power | Pi |  |  | 10 | dBm | ZS = 50 | 3 |
| junction temperature | Tj | -40 |  | 150 | C |  | 3 |
| total power dissipation | Ptot |  |  | 450 | mW | Tsp <= 87 C [1] | 3 |
| collector-base breakdown voltage | V(BR)CBO | 24 |  |  | V | IC = 100 nA; IE = 0 mA | 4 |
| collector-emitter breakdown voltage | V(BR)CEO | 12 |  |  | V | IC = 150 nA; IB = 0 mA | 4 |
| collector current | IC |  | 10 | 40 | mA |  | 4 |
| DC current gain | hFE | 60 | 95 | 200 |  | IC = 10 mA; VCE = 8 V | 4 |
| thermal resistance from junction to solder point | Rth(j-sp) |  | 140 |  | K/W |  | 4 |

## CAD (KiCad official)

- Symbol: `BFU530A`
- Footprint: `Package_TO_SOT_SMD:SOT-23-3`
- 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files: `bfu530a-etched.step` / `bfu530a-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bfu530a.step` / `bfu530a.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [NXP Semicon datasheet](https://www.nxp.com/docs/en/data-sheet/BFU530A.pdf) (22 pp, sha256 `2063428cceb27358`, retrieved 2026-10-17, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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/bfu530a-datasheet.pdf)