component
BC848ALT1G
Public Made by Adomby adom
onsemi Bipolar (BJT), SOT-23. 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
markdownBC848ALT1G
onsemi · Bipolar (BJT) · SOT-23
BC848ALT1G from onsemi, 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 | BASE | input | Base terminal of the NPN general-purpose transistor (SOT-23 STYLE 6, pin 1); the datasheet gives no separate pin-level electrical limit for this pin. |
| 2 | EMITTER | passive | Emitter terminal of the NPN general-purpose transistor (SOT-23 STYLE 6, pin 2); the datasheet gives no separate pin-level electrical limit for this pin. |
| 3 | COLLECTOR | passive | Collector terminal of the NPN general-purpose transistor (SOT-23 STYLE 6, pin 3); the datasheet gives a continuous collector current of 100 mA (IC) for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| 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-Emitter Voltage | VCEO | 30 | Vdc | 1 | |||
| Collector-Base Voltage | VCBO | 30 | Vdc | 1 | |||
| Emitter-Base Voltage | VEBO | 5 | Vdc | 1 | |||
| Collector Current - Continuous | IC | 100 | mAdc | 1 | |||
| Total Device Dissipation FR-5 Board | PD | 225 | mW | TA = 25°C, FR-5 board (Note 1) | 1 | ||
| Total Device Dissipation Alumina Substrate | PD | 300 | mW | TA = 25°C, alumina substrate (Note 2) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (FR-5 board) | RJA | 556 | °C/W | FR-5 board (Note 1) | 1 | ||
| Thermal Resistance, Junction-to-Ambient (alumina substrate) | RJA | 417 | °C/W | Alumina substrate (Note 2) | 1 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 1 | ||
| Collector-Emitter Breakdown Voltage (BC848A, B, C, BC849B, C) | V(BR)CEO | 30 | V | IC = 10 mA | 2 | ||
| Collector-Emitter Breakdown Voltage (BC848A, B, C, BC849B, C), IC = 10 µA, VEB = 0 | V(BR)CES | 30 | V | IC = 10 µA, VEB = 0 | 2 | ||
| Collector-Base Breakdown Voltage (BC848A, B, C, BC849B, C) | V(BR)CBO | 30 | V | IC = 10 µA | 2 | ||
| Emitter-Base Breakdown Voltage (BC848A, B, C, BC849B, C) | V(BR)EBO | 5 | V | IE = 1.0 µA | 2 | ||
| Collector Cutoff Current | ICBO | 15 | nA | VCB = 30 V | 2 | ||
| Collector Cutoff Current | ICBO | 5 | µA | VCB = 30 V, TA = 150°C | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.25 | V | IC = 10 mA, IB = 0.5 mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.6 | V | IC = 100 mA, IB = 5.0 mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | 0.7 | V | IC = 10 mA, IB = 0.5 mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | 0.9 | V | IC = 100 mA, IB = 5.0 mA | 2 | ||
| Base-Emitter Voltage | VBE(on) | 580 | 660 | mV | IC = 2.0 mA, VCE = 5.0 V | 2 | |
| Base-Emitter Voltage | VBE(on) | 700 | 770 | mV | IC = 10 mA, VCE = 5.0 V | 2 | |
| Current-Gain - Bandwidth Product | fT | 100 | MHz | IC = 10 mA, VCE = 5.0 Vdc, f = 100 MHz | 2 | ||
| Output Capacitance | Cobo | 4.5 | pF | VCB = 10 V, f = 1.0 MHz | 2 | ||
| Noise Figure (BC846A,B,C, BC847A,B,C, BC848A,B,C) | NF | 10 | dB | IC = 0.2 mA, VCE = 5.0 Vdc, RS = 2.0 k, f = 1.0 kHz, BW = 200 Hz | 2 |
CAD (KiCad official)
- Symbol:
BC848ALT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bc848alt1g-etched.step/bc848alt1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bc848alt1g.step/bc848alt1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (14 pp, sha256
d61688c238f8b12f, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).