component
MMST3904-TP
Public Made by Adomby adom
MCC Micro Commercial Components Bipolar (BJT), SOT-323. 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
markdownMMST3904-TP
MCC Micro Commercial Components · Bipolar (BJT) · SOT-323
MMST3904-TP from MCC Micro Commercial Components, in a SOT-323. 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 of the NPN transistor; emitter-base voltage VEBO max 6 V. |
| 2 | E | passive | Emitter of the NPN transistor; VEBO 6 V max relative to base. |
| 3 | C | passive | Collector of the NPN transistor; VCEO 40 V, VCBO 60 V, IC max 200 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MCC Micro Commercial Components |
| Package | SOT-323 |
| 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 Current | IC | 200 | mA | 1 | |||
| Collector Power Dissipation | PC | 200 | mW | Note (1): valid provided that terminals are kept at ambient temperature | 1 | ||
| Collector-Emitter Voltage | VCEO | 40 | V | 1 | |||
| Emitter-Base Voltage | VEBO | 6 | V | 1 | |||
| Collector-Base Voltage | VCBO | 60 | V | 1 | |||
| Operating Junction Temperature Range | Tj | -55 | 150 | ℃ | 1 | ||
| Storage Temperature Range | Tstg | -55 | 150 | ℃ | 1 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 40 | V | IC=1mA, IB=0 | 2 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | 60 | V | IC=10µA, IE=0 | 2 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | 5 | V | IE=10µA, IC=0 | 2 | ||
| Base Cutoff Current | IBL | 50 | nA | VCE=30V, VEB(OFF)=3V | 2 | ||
| Collector Cutoff Current | ICEX | 50 | nA | VCE=30V, VEB(OFF)=3V | 2 | ||
| DC Current Gain | hFE(1) | 40 | VCE=1V, IC=0.1mA | 2 | |||
| DC Current Gain | hFE(2) | 70 | VCE=1V, IC=1mA | 2 | |||
| DC Current Gain | hFE(3) | 100 | 300 | VCE=1V, IC=-10mA | 2 | ||
| DC Current Gain | hFE(4) | 60 | VCE=1V, IC=50mA | 2 | |||
| DC Current Gain | hFE(5) | 30 | VCE=1V, IC=500mA | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.25 | V | IC=10mA, IB=1mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.3 | V | IC=50mA, IB=5mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(sat) | 0.65 | 0.85 | V | IC=10mA, IB=1mA | 2 | |
| Base-Emitter Saturation Voltage | VBE(sat) | 0.95 | V | IC=50mA, IB=5mA | 2 | ||
| Output Capacitance | Ccbo | 4 | pF | VCB=5V, IE=0, f=1MHz | 2 | ||
| Input Capacitance | Cibo | 8 | pF | VBE=0.5V, IC=0, f=1MHz | 2 | ||
| Noise Figure | NF | 5 | dB | VCE=5V, IC=0.1mA RS=1KΩ, f=1KHz | 2 | ||
| Transition Frequency | fT | 300 | MHz | VCE=20V, IC=10mA, f=100MHz | 2 | ||
| Input Impedance | hie | 1 | 10 | KΩ | 2 | ||
| Voltage Feedback Ratio | hre | 0.5 | 8 | x104 | VCE=10V, IC=1mA, f=1KHz | 2 | |
| Output Admittance | hoe | 1 | 40 | uS | 2 | ||
| Small Signal Current Gain | hfe | 100 | 400 | 2 |
CAD (KiCad official)
- Symbol:
MMST3904-TP - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
mmst3904-tp-etched.step/mmst3904-tp-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmst3904-tp.step/mmst3904-tp.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MCC Micro Commercial Components datasheet (4 pp, sha256
e470e75875e49a89, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).