component
DTD543ZETL
Public Made by Adomby adom
ROHM Semicon Digital Transistors, SOT-416. 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
markdownDTD543ZETL
ROHM Semicon · Digital Transistors · SOT-416
DTD543ZETL from ROHM Semicon, in a SOT-416. 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 | GND (EMITTER) | power_in | Ground / emitter of the built-in NPN transistor, also connected to one end of R2 (47kΩ). |
| 2 | IN (BASE) | input | Input / base through built-in R1 (4.7kΩ); VI(off) max 0.3V, VI(on) min 2.5V, input voltage range -5 to 12V. |
| 3 | OUT (COLLECTOR) | output | Output / collector of the built-in transistor; supply voltage VCC 12V max and collector current IC(MAX) 500mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | SOT-416 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage (off) | VI(off) | 0.3 | V | VCC = 5V, IO = 100μA | 2 | ||
| Input voltage (on) | VI(on) | 2.5 | V | VO = 0.3V, IO = 20mA | 2 | ||
| Output voltage | VO(on) | 60 | 300 | mV | IO = 100mA, II = 5mA | 2 | |
| Input current | II | 1.4 | mA | VI = 5V | 2 | ||
| Output current (off) | IO(off) | 500 | nA | VCC = 12V, VI = 0V | 2 | ||
| DC current gain | GI | 140 | - | VO = 2V, IO = 100mA | 2 | ||
| Input resistance | R1 | 3.29 | 4.7 | 6.11 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 8 | 10 | 12 | - | 2 | |
| Supply voltage | VCC | 12 | V | 2 | |||
| Input voltage | VIN | -5 | 12 | V | 2 | ||
| Collector current | IC(MAX) | 500 | mA | 2 | |||
| Power dissipation | PD | 150 | mW | Each terminal mounted on a reference land | 2 | ||
| Junction temperature | Tj | 150 | ℃ | 2 | |||
| Range of storage temperature | Tstg | -55 | 150 | ℃ | 2 |
CAD (KiCad official)
- Symbol:
DTD543ZETL - Footprint:
Package_TO_SOT_SMD:SOT-416 - 3D model: SOT-416, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
dtd543zetl-etched.step/dtd543zetl-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dtd543zetl.step/dtd543zetl.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (9 pp, sha256
c3bd4886649def84, 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).