component
MJD350T4
Public Made by Adomby adom
STMicroelectronics Bipolar (BJT), TO-252. 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
markdownMJD350T4
STMicroelectronics · Bipolar (BJT) · TO-252
MJD350T4 from STMicroelectronics, in a TO-252. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Base | input | Base input terminal for transistor control, rated for VEBO (Emitter-Base Voltage) max 3V, controlling collector-emitter conduction. |
| 2 | Collector | passive | Collector terminal connected to metal tab, sustaining VCBO and VCEO max 300V each, with IC max 0.5A and ICM max 0.75A. |
| 3 | Emitter | passive | Emitter terminal providing return path for collector current, referenced in VCBO (IE=0) and VCEO measurements, completing the BJT junction. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-252 |
| 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 Cut-off Current (VBE = 0) | ICBO | 0.1 | mA | VCB = 300 V | 2 | ||
| Emitter Cut-off Current (IC = 0) | IEBO | 0.1 | mA | VEB = 3 V | 2 | ||
| Collector-Emitter Sustaining Voltage (IB = 0) | VCEO(sus) | 300 | V | IC = 1 mA | 2 | ||
| DC Current Gain | hFE | 30 | 240 | IC = 50 mA VCE = 10 V; pulsed: pulse duration = 300 µs, duty cycle ≤ 2 % | 2 | ||
| Collector-Base Voltage (IE = 0) | VCBO | 300 | V | IE = 0 | 1 | ||
| Collector-Emitter Voltage (IB = 0) | VCEO | 300 | V | IB = 0 | 1 | ||
| Emitter-Base Voltage (IC = 0) | VEBO | 3 | V | IC = 0 | 1 | ||
| Collector Current | IC | 0.5 | A | 1 | |||
| Collector Peak Current | ICM | 0.75 | A | tp = 25 °C | 1 | ||
| Total Power Dissipation | Ptot | 15 | W | Tcase ≤ 25 °C | 1 | ||
| Storage Temperature | Tstg | -65 | 150 | °C | 1 | ||
| Max Operating Junction Temperature | Tj | 150 | °C | 1 | |||
| Thermal Resistance Junction-case Max | Rthj-case | 8.33 | °C/W | 2 | |||
| Thermal Resistance Junction-ambient Max | Rthj-amb | 100 | °C/W | 2 |
CAD (KiCad official)
- Symbol:
MJD350T4 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
mjd350t4-etched.step/mjd350t4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mjd350t4.step/mjd350t4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (5 pp, sha256
a6cc88d76e0c4d05, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).