component
DSS4320T-7
Public Made by Adomby adom
Diodes Incorporated Bipolar (BJT), SOT-23. 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
markdownDSS4320T-7
Diodes Incorporated · Bipolar (BJT) · SOT-23
DSS4320T-7 from Diodes Incorporated, in a SOT-23. 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 NPN transistor, shown at the bottom-left of the top-view schematic; VEBO max 5 V and continuous base current IB max 0.5 A. |
| 2 | E | passive | Emitter of the NPN transistor, shown at the bottom-right of the top-view schematic; emitter-base voltage limited to 5 V. |
| 3 | C | passive | Collector of the NPN transistor, shown at the top of the top-view schematic; VCEO 20 V, VCBO 20 V, continuous IC 2 A, peak ICM 5 A. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-23 |
| 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 Voltage | VCBO | 20 | V | 1 | |||
| Collector-Emitter Voltage | VCEO | 20 | V | 1 | |||
| Emitter-Base Voltage | VEBO | 5 | V | 1 | |||
| Peak Pulse Current | ICM | 5 | A | 1 | |||
| Repetitive Peak Pulse Current | ICRP | 3 | A | Note 3: pulse width ≤ 100ms, duty cycle ≤ 0.25 | 1 | ||
| Continuous Collector Current | IC | 2 | A | 1 | |||
| Base Current | IB | 0.5 | A | 1 | |||
| Power Dissipation | PD | 600 | mW | (Note 4) @ TA = 25°C; device mounted on FR-4 PCB with minimum recommended pad layout | 1 | ||
| Thermal Resistance, Junction to Ambient Air | RθJA | 209 | °C/W | (Note 4) @ TA = 25°C | 1 | ||
| Operating and Storage Temperature Range | TJ, TSTG | -55 | 150 | °C | 1 | ||
| Collector-Base Cutoff Current | ICBO | 100 | nA | VCB = 20V, IE = 0 | 2 | ||
| Collector-Base Cutoff Current | ICBO | 50 | μA | VCB = 20V, IE = 0, TA = 150°C | 2 | ||
| Emitter-Base Cutoff Current | IEBO | 100 | nA | VEB = 5V, IC = 0 | 2 | ||
| Collector-Base Breakdown Voltage | V(BR)CBO | 20 | V | IC = 100μA | 2 | ||
| Collector-Emitter Breakdown Voltage | V(BR)CEO | 20 | V | IC = 10mA | 2 | ||
| Emitter-Base Breakdown Voltage | V(BR)EBO | 5 | V | IE = 100μA | 2 | ||
| DC Current Gain | hFE | 220 | VCE = 2V, IC = 0.1A | 2 | |||
| DC Current Gain | hFE | 200 | VCE = 2V, IC = 2A | 2 | |||
| DC Current Gain | hFE | 150 | VCE = 2V, IC = 3A | 2 | |||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 70 | mV | IC = 0.5A, IB = 50mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 120 | mV | IC = 1A, IB = 50mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 230 | mV | IC = 2A, IB = 40mA | 2 | ||
| Collector-Emitter Saturation Voltage | VCE(SAT) | 70 | 210 | mV | IC = 2A, IB = 200mA | 2 | |
| Collector-Emitter Saturation Voltage | VCE(SAT) | 310 | mV | IC = 3A, IB = 300mA | 2 | ||
| Equivalent On-Resistance | RCE(SAT) | 35 | 105 | mΩ | IE = 2A, IB = 200mA | 2 | |
| Base-Emitter Saturation Voltage | VBE(SAT) | 1.1 | V | IC = 2A, IB = 40mA | 2 | ||
| Base-Emitter Saturation Voltage | VBE(SAT) | 1.2 | V | IC = 3A, IB = 300mA | 2 | ||
| Base-Emitter Turn-on Voltage | VBE(ON) | 1.2 | V | VCE = 2V, IC = 1A | 2 | ||
| Transition Frequency | fT | 100 | MHz | VCE = 5V, IC = 100mA, f = 100MHz | 2 | ||
| Output Capacitance | Cob | 35 | pF | VCB = 10V, f = 1MHz | 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 | Copper | tin | • Terminals: Finish, Matte Tin annealed over Copper leadframe. | 1 |
CAD (KiCad official)
- Symbol:
DSS4320T-7 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
dss4320t-7-etched.step/dss4320t-7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dss4320t-7.step/dss4320t-7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (5 pp, sha256
d9d7940625bf5c5e, 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).