component
DSS5140U-7
Public Made by Adomby adom
Diodes Incorporated Bipolar (BJT), SOT-323. 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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Contents
README
markdownDSS5140U-7
Diodes Incorporated · Bipolar (BJT) · SOT-323
DSS5140U-7 from Diodes Incorporated, in a SOT-323. 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 | Base of the PNP transistor; bottom-left lead in the top-view pin-out, with VEBO limited to -5V and peak base current IBM of -1A. |
| 2 | E | passive | Emitter of the PNP transistor; bottom-right lead in the top-view pin-out, with emitter-base voltage rating VEBO of -5V. |
| 3 | C | passive | Collector of the PNP transistor; single top lead in the top-view pin-out, rated VCEO -40V, IC -1A continuous and ICM -2A peak. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-323 |
| 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-Base Breakdown Voltage | BVCBO | -40 | V | IC = -100µA, IE = 0 | 4 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | -40 | V | IC = -10mA, IB = 0 | 4 | ||
| Emitter-Base Breakdown Voltage | BVEBO | -5 | V | IE = -100µA, IC = 0 | 4 | ||
| Collector Cutoff Current | ICBO | -100 | nA | VCB = -40V, IE = 0 | 4 | ||
| Collector Cutoff Current (TJ = +150°C) | ICBO | -50 | µA | VCB = -40V, IE = 0, TJ = +150°C | 4 | ||
| Emitter Cutoff Current | IEBO | -100 | nA | VEB = -5V, IC = 0 | 4 | ||
| DC Current Gain | hFE | 300 | VCE = -5V, IC = -1mA | 4 | |||
| DC Current Gain | hFE | 250 | VCE = -5V, IC = -500mA | 4 | |||
| DC Current Gain | hFE | 160 | VCE = -5V, IC = 1A | 4 | |||
| DC Current Gain (upper limit) | hFE | 800 | 4 | ||||
| Collector-Emitter Saturation Voltage | VCE(SAT) | -200 | mV | IC = -100mA, IB = -1mA | 4 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | -250 | mV | IC = -500mA, IB = -50mA | 4 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | -500 | mV | IC = -1A, IB = -100mA | 4 | ||
| Collector-Emitter Saturation Resistance | RCE(SAT) | 500 | mΩ | IC = -500mA, IB = -50mA | 4 | ||
| Base-Emitter Saturation Voltage | VBE(SAT) | -1.1 | V | IC = -1A, IB = -50mA | 4 | ||
| Base-Emitter Turn On Voltage | VBE(ON) | -1 | V | VCE = -5V, IC = -1A | 4 | ||
| Current Gain-Bandwidth Product | fT | 150 | MHz | VCE = -10V, IC = -50mA, f = 100MHz | 4 | ||
| Collector-Base Voltage | VCBO | -40 | V | @TA = +25°C | 2 | ||
| Collector-Emitter Voltage | VCEO | -40 | V | @TA = +25°C | 2 | ||
| Emitter-Base Voltage | VEBO | -5 | V | @TA = +25°C | 2 | ||
| Collector Current - Continuous | IC | -1 | A | @TA = +25°C | 2 | ||
| Peak Pulse Collector Current | ICM | -2 | A | @TA = +25°C | 2 | ||
| Peak Base Current | IBM | -1 | A | @TA = +25°C | 2 | ||
| Electrostatic Discharge - Human Body Model | ESD HBM | 4000 | V | JEDEC Class 3A (Note 8) | 2 | ||
| Electrostatic Discharge - Machine Model | ESD MM | 400 | V | JEDEC Class C (Note 8) | 2 | ||
| Power Dissipation | PD | 400 | mW | Note 5: minimum recommended pad layout, 1oz Cu, 1.6mm FR4, still air | 2 | ||
| Power Dissipation | PD | 500 | mW | Note 6: 25mm x 25mm 1oz copper collector pad | 2 | ||
| Thermal Resistance, Junction to Ambient | RJA | 313 | °C/W | Note 5: minimum recommended pad layout, 1oz Cu, 1.6mm FR4, still air | 2 | ||
| Thermal Resistance, Junction to Ambient | RJA | 250 | °C/W | Note 6: 25mm x 25mm 1oz copper collector pad | 2 | ||
| Thermal Resistance, Junction to Leads | RJL | 350 | °C/W | Note 7: junction to solder point at end of leads | 2 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 2 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | tin | Terminals: Finish, Matte Tin Plated leads. Solderable per MIL-STD-202, Method 208 | 1 |
CAD (KiCad official)
- Symbol:
DSS5140U-7 - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
dss5140u-7-etched.step/dss5140u-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dss5140u-7.step/dss5140u-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (7 pp, sha256
fe1ad718c7ee270b, retrieved 2026-10-18, 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).