component
MJD340T4
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
markdownMJD340T4
STMicroelectronics · Bipolar (BJT) · TO-252
MJD340T4 from STMicroelectronics, in a TO-252. 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 | NPN base terminal (control input); hFE 30-240 at IC = 50 mA, VCE = 10 V; VEBO max 3 V. |
| 2 | C | passive | Collector lead, connected internally to the exposed TAB; VCEO(sus) = 300 V, IC max 0.5 A, ICM peak 0.75 A. |
| 3 | E | passive | NPN emitter terminal; VCEO(sus) sustaining voltage 300 V, IC max 0.5 A continuous. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TO-252 |
| Category | Transistors/Thyristors |
| Pins | 3 |
CAD (KiCad official)
- Symbol:
MJD340T4 - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: TO-252 (KiCad packages3D, STEP)
- 3D model files:
mjd340t4-etched.step/mjd340t4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mjd340t4.step/mjd340t4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (5 pp, sha256
a6cc88d76e0c4d05, retrieved 2026-09-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(text+vision), consensusclaude-opus-4-7(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).