component
MMBT5551_R1_00001
Public Made by Adomby adom
PANJIT International 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
markdownMMBT5551_R1_00001
PANJIT International · Bipolar (BJT) · SOT-23
MMBT5551_R1_00001 from PANJIT International, 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, bottom-left terminal in the top view; VEBO max 6 V. |
| 2 | E | passive | Emitter of the NPN transistor, bottom-right terminal in the top view; VEBO max 6 V. |
| 3 | C | passive | Collector of the NPN transistor, single top terminal in the top view; VCEO 160 V, VCBO 180 V, IC 600 mA continuous. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | PANJIT International |
| 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 |
|---|---|---|---|---|---|---|---|
| Emitter-Base Breakdown Voltage | V(BR)EBO | 6 | V | IE=10uA, IC=0A | 2 | ||
| Collector-Base Cut-off Current | ICBO | 50 | nA | VCB=120V, IE=0A | 2 | ||
| Emitter-Base Cut-off Current | IEBO | 50 | nA | VEB=4V, IC=0A | 2 | ||
| DC Current Gain | hFE | 80 | VCE=5V, IC=1mA | 2 | |||
| DC Current Gain | hFE | 30 | VCE=5V, IC=50mA | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 150 | mV | IC=10mA, IB=1mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(SAT) | 1 | V | IC=10mA, IB=1mA | 2 | ||
| Collector-Base Capacitance | CCBO | 6 | pF | VCB=10V, IE=0A, f=1MHz | 2 | ||
| Emitter-Base Capacitance | CEBO | 30 | pF | VEB=500mV, IC=0A, f=1MHz | 2 | ||
| Collector-Emitter Voltage | VCEO | 160 | V | 1 | |||
| Collector-Base Voltage | VCBO | 180 | V | 1 | |||
| Emitter-Base Voltage | VEBO | 6 | V | 1 | |||
| Collector Current Continuous | IC | 600 | mA | 1 | |||
| Max Power Dissipation | PD | 250 | mW | Note 1: mounted on FR-4 PCB, single sided copper, mini pad | 1 | ||
| Operating Junction Temperature and Storage Temperature Range | TJ, TSTG | -55 | 150 | OC | 1 | ||
| Thermal Resistance, Junction to Ambient | RJA | 325 | OC/W | Note 1: mounted on FR-4 PCB, single sided copper, mini pad | 1 |
CAD (KiCad official)
- Symbol:
MMBT5551_R1_00001 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmbt5551-r1-00001-etched.step/mmbt5551-r1-00001-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmbt5551-r1-00001.step/mmbt5551-r1-00001.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: PANJIT International datasheet (6 pp, sha256
2bd5c94b483cddd9, 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).