component
MMDT4401DW
Public Made by Adomby adom
CBI Bipolar (BJT), SOT-363. 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
markdownMMDT4401DW
CBI · Bipolar (BJT) · SOT-363
MMDT4401DW from CBI, in a SOT-363. 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 | E1 | passive | Emitter of transistor 1 (NPN); VEBO max 6 V, IC max 0.6 A continuous. |
| 2 | B1 | input | Base of transistor 1 (NPN); VEBO max 6 V, VCBO 60 V. |
| 3 | C2 | passive | Collector of transistor 2 (NPN); VCEO max 40 V, VCBO 60 V, IC max 0.6 A continuous. |
| 4 | E2 | passive | Emitter of transistor 2 (NPN); VEBO max 6 V, IC max 0.6 A continuous. |
| 5 | B2 | input | Base of transistor 2 (NPN); VEBO max 6 V, VCBO 60 V. |
| 6 | C1 | passive | Collector of transistor 1 (NPN); VCEO max 40 V, VCBO 60 V, IC max 0.6 A continuous. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | CBI |
| Package | SOT-363 |
| Category | Transistors/Thyristors |
| Pins | 6 |
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 breakdown voltage | V(BR)CBO | 60 | V | IC= 100 μA, IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 40 | V | IC= 1mA, IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 6 | V | IE= 100 μA, IC=0 | 1 | ||
| Collector cut-off current | ICBO | 0.1 | μA | VCB= 50 V, IE=0 | 1 | ||
| Collector cut-off current | ICEO | 0.5 | μA | VCE= 35 V, IB=0 | 1 | ||
| Emitter cut-off current | IEBO | 0.1 | μA | VEB= 5V, IC=0 | 1 | ||
| DC current gain | hFE(1) | 20 | VCE= 1V, IC= 0.1mA | 1 | |||
| DC current gain | hFE(2) | 40 | VCE= 1V, IC= 1mA | 1 | |||
| DC current gain | hFE(3) | 80 | VCE= 1V, IC= 10mA | 1 | |||
| DC current gain | hFE(4) | 100 | 300 | VCE= 1V, IC= 150mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat)1 | 0.4 | V | IC=150 mA, IB= 15mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat)2 | 0.75 | V | IC=500 mA, IB= 50mA | 1 | ||
| Base-emitter saturation voltage | VBE(sat)1 | 0.75 | 0.95 | V | IC= 150 mA, IB= 15mA | 1 | |
| Base-emitter saturation voltage | VBE(sat)2 | 1.2 | V | IC= 500 mA, IB= 50mA | 1 | ||
| Transition frequency | fT | 250 | MHz | VCE= 10V, IC= 20mA, f=100MHz | 1 | ||
| Output capacitance | Cob | 6.5 | pF | VCB=5V, IE= 0, f=1MHz | 1 | ||
| Delay time | td | 15 | nS | 1 | |||
| Rise time | tr | 20 | nS | VCC=30V, VBE=2V, IC=150mA, IB1=15mA | 1 | ||
| Storage time | tS | 225 | nS | 1 | |||
| Fall time | tf | 30 | nS | VCC=30V, IC=150mA, IB1=-IB2=15mA | 1 | ||
| Collector-base voltage | VCBO | 60 | V | 1 | |||
| Collector-emitter voltage | VCEO | 40 | V | 1 | |||
| Emitter-base voltage | VEBO | 6 | V | 1 | |||
| Collector current -Continuous | IC | 0.6 | A | 1 | |||
| Collector power dissipation | PC | 0.2 | W | 1 | |||
| Thermal resistance from junction to ambient | RθJA | 625 | ℃/W | 1 | |||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
MMDT4401DW - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
mmdt4401dw-etched.step/mmdt4401dw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmdt4401dw.step/mmdt4401dw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: CBI datasheet (3 pp, sha256
fb1f20c534dc8663, 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).