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MMDTA234
Public Made by Adomby adom
ST(Semtech) Digital Transistors, TO-236. 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
markdownMMDTA234
ST(Semtech) · Digital Transistors · TO-236
MMDTA234 from ST(Semtech), in a TO-236. 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 | Base | input | Base (input) of the PNP transistor through built-in R1 = 2.2 kΩ, with R2 = 10 kΩ to the emitter; -VEBO is -6 to +12 V. |
| 2 | Emitter | passive | Emitter (common) of the PNP transistor; -VCEO is 50 V maximum. |
| 3 | Collector | passive | Collector (output) of the PNP transistor; -IC is 800 mA maximum (tp = 1 ms) and Ptot is 200 mW. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ST(Semtech) |
| Package | TO-236 |
| 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 Emitter Voltage | -VCEO | 50 | V | Ta = 25 °C | 1 | ||
| Emitter Base Voltage | -VEBO | -6 | 12 | V | Ta = 25 °C | 1 | |
| Collector Current | -IC | 800 | mA | tp = 1mS | 1 | ||
| Total Power Dissipation | Ptot | 200 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | Tj | 150 | °C | 1 | |||
| Storage Temperature Range | TStg | -55 | 150 | °C | 1 | ||
| DC Current Gain | hFE | 56 | -VCE = 5 V, -IC = 50 mA | 1 | |||
| Collector Base Cutoff Current | -ICBO | 10 | µA | -VCB = 30 V | 1 | ||
| Emitter Base Cutoff Current | -IEBO | 3.6 | mA | -VEB = 5 V | 1 | ||
| Collector Emitter Saturation Voltage | -VCEsat | 0.3 | V | IC = 50 mA, IB = 2.5 mA | 1 | ||
| Input Off Voltage | -VI(off) | 0.3 | V | -VCE = 5 V, -IC = 0.1 mA | 1 | ||
| Input On Voltage | -VI(on) | 2 | V | -VCE = 0.3 V, -IC = 20 mA | 1 | ||
| Transition Frequency | fT | 200 | MHz | -VCE = 10 V, -IE = 5 mA, f = 100 MHz | 1 | ||
| Input Resistor | R1 | 2.2 | KΩ | 1 | |||
| Base-Emitter Resistor | R2 | 10 | KΩ | 1 |
CAD (KiCad official)
- Symbol:
MMDTA234 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236 (KiCad packages3D, STEP)
- 3D model files:
mmdta234-etched.step/mmdta234-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmdta234.step/mmdta234.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ST(Semtech) datasheet (2 pp, sha256
dcaa515a37c0aa97, retrieved 2026-10-22, 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).