component
MMBT5551 200-300
Public Made by Adomby adom
GME(银河微电) 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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Contents
README
markdownMMBT5551 200-300
GME(银河微电) · Bipolar (BJT) · SOT-23
MMBT5551 200-300 from GME(银河微电), 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 | B | input | Base of the NPN transistor; VEBO max 6 V and V(BR)EBO min 6 V at IE = 10μA. |
| 2 | E | passive | Emitter of the NPN transistor; emitter-base breakdown voltage rated 6 V. |
| 3 | C | passive | Collector of the NPN transistor; VCBO 180 V, VCEO 160 V, continuous IC 0.6 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GME(银河微电) |
| 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-Base Voltage | VCBO | 180 | V | TA = 25°C | 1 | ||
| Collector-Emitter Breakdown Voltage | VCEO | 160 | V | TA = 25°C | 1 | ||
| Emitter-Base Breakdown Voltage | VEBO | 6 | V | TA = 25°C | 1 | ||
| Collector Current (Continuous) | IC | 0.6 | A | TA = 25°C | 1 | ||
| Power Dissipation | PD | 0.35 | W | TA = 25°C | 1 | ||
| Thermal Resistance Junction-to-Air | RθJA | 396 | °C/W | Note 1: surface mounted on 15mm x 15mm x 1mm FR4-epoxy PCB | 1 | ||
| Thermal Resistance Junction-to-Case | RθJC | 213 | °C/W | Note 1: surface mounted on 15mm x 15mm x 1mm FR4-epoxy PCB | 1 | ||
| Thermal Resistance Junction-to-Lead | RθJL | 186 | °C/W | Note 1: surface mounted on 15mm x 15mm x 1mm FR4-epoxy PCB | 1 | ||
| Junction Temperature Range | TJ | -55 | 150 | °C | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 1 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | 180 | V | IC = 100μA, IE = 0 | 2 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 160 | V | IC = 0.1mA, IB = 0 | 2 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | 6 | V | IE = 10μA, IC = 0 | 2 | ||
| Collector Cut-off Current | ICBO | 50 | nA | VCB = 120V, IE = 0 | 2 | ||
| Emitter Cut-off Current | IEBO | 50 | nA | VEB = 4V, IC = 0 | 2 | ||
| DC Current Gain | hFE | 80 | - | VCE = 5V, IC = 1mA | 2 | ||
| DC Current Gain (grade 200-300) | hFE | 200 | 300 | - | VCE = 5V, IC = 10mA | 2 | |
| DC Current Gain | hFE | 30 | - | VCE = 5V, IC = 50mA | 2 | ||
| Collector-emitter Saturation Voltage | VCE(sat) | 0.15 | V | IC = 10mA, IB = 1mA | 2 | ||
| Collector-emitter Saturation Voltage | VCE(sat) | 0.2 | V | IC = 50mA, IB = 5mA | 2 | ||
| Base-emitter Saturation Voltage | VBE(sat) | 1 | V | IC = 10mA, IB = 1mA | 2 | ||
| Collector-base Output Capacitance | Ccbo | 6 | pF | VCB = 10V, f = 1MHz, IE = 10mA | 2 | ||
| Current-Gain, Bandwidth Product | fT | 100 | 300 | MHz | IC = 10mA, VCE = 10V, f = 100MHz | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Tin-plated; solderability per MIL-STD-202, Method 208 SOT-23 | 1 |
CAD (KiCad official)
- Symbol:
MMBT5551 200-300 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbt5551-200-300-etched.step/mmbt5551-200-300-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbt5551-200-300.step/mmbt5551-200-300.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GME(银河微电) datasheet (4 pp, sha256
a71432d1b6c0a03b, retrieved 2026-10-17, 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).