component
SMUN5232T1G
Public Made by Adomby adom
onsemi Digital Transistors, SOT-323-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownSMUN5232T1G
onsemi · Digital Transistors · SOT-323-3
SMUN5232T1G from onsemi, in a SOT-323-3. 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) pin of the NPN bias-resistor transistor; the datasheet gives input forward voltage VIN(fwd) max 30 Vdc and input reverse voltage VIN(rev) max 10 Vdc. |
| 2 | EMITTER | power_in | Emitter pin, labelled GROUND (EMITTER (GROUND)) on the datasheet pin diagram; the datasheet gives no separate voltage or current limit for this pin. |
| 3 | COLLECTOR | output | Collector (OUTPUT) pin; the datasheet limits are collector-emitter voltage VCEO 50 Vdc and continuous collector current IC 100 mAdc. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-323-3 |
| 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 Cutoff Current | ICBO | 100 | nAdc | VCB = 50 V, IE = 0 | 4 | ||
| Collector−Emitter Cutoff Current | ICEO | 500 | nAdc | VCE = 50 V, IB = 0 | 4 | ||
| Emitter−Base Cutoff Current | IEBO | 1.5 | mAdc | VEB = 6.0 V, IC = 0 | 4 | ||
| Collector−Base Breakdown Voltage | V(BR)CBO | 50 | Vdc | IC = 10 A, IE = 0 | 4 | ||
| Collector−Emitter Breakdown Voltage | V(BR)CEO | 50 | Vdc | IC = 2.0 mA, IB = 0 | 4 | ||
| DC Current Gain | hFE | 15 | 30 | IC = 5.0 mA, VCE = 10 V | 4 | ||
| Collector−Emitter Saturation Voltage | VCE(sat) | 0.25 | Vdc | IC = 10 mA, IB = 1.0 mA | 4 | ||
| Input Voltage (off) | Vi(off) | 1.2 | 0.5 | Vdc | VCE = 5.0 V, IC = 100 A | 4 | |
| Input Voltage (on) | Vi(on) | 2.5 | 2 | Vdc | VCE = 0.3 V, IC = 20 mA | 4 | |
| Output Voltage (on) | VOL | 0.2 | Vdc | VCC = 5.0 V, VB = 2.5 V, RL = 1.0 k | 4 | ||
| Output Voltage (off) | VOH | 4.9 | Vdc | VCC = 5.0 V, VB = 0.25 V, RL = 1.0 k | 4 | ||
| Input Resistor R1 | R1 | 3.3 | 4.7 | 6.1 | k | 4 | |
| Resistor Ratio | R1/R2 | 0.8 | 1 | 1.2 | 4 | ||
| Collector−Base Voltage | VCBO | 50 | Vdc | 1 | |||
| Collector−Emitter Voltage | VCEO | 50 | Vdc | 1 | |||
| Collector Current − Continuous | IC | 100 | mAdc | 1 | |||
| Input Forward Voltage | VIN(fwd) | 30 | Vdc | 1 | |||
| Input Reverse Voltage | VIN(rev) | 10 | Vdc | 1 | |||
| Total Device Dissipation | PD | 202 | mW | TA = 25°C (Note 1) | 3 | ||
| Total Device Dissipation | PD | 310 | mW | TA = 25°C (Note 2) | 3 | ||
| Derate above 25°C | PD | 1.6 | mW/°C | Derate above 25°C (Note 1) | 3 | ||
| Derate above 25°C | PD | 2.5 | mW/°C | Derate above 25°C (Note 2) | 3 | ||
| Thermal Resistance, Junction to Ambient | RJA | 618 | °C/W | (Note 1) | 3 | ||
| Thermal Resistance, Junction to Ambient | RJA | 403 | °C/W | (Note 2) | 3 | ||
| Thermal Resistance, Junction to Lead | RJL | 280 | °C/W | (Note 1) | 3 | ||
| Thermal Resistance, Junction to Lead | RJL | 332 | °C/W | (Note 2) | 3 | ||
| Junction and Storage Temperature Range | TJ, Tstg | -55 | 150 | °C | 3 |
CAD (KiCad official)
- Symbol:
SMUN5232T1G - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323-3 (KiCad packages3D, STEP)
- 3D model files:
smun5232t1g-etched.step/smun5232t1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);smun5232t1g.step/smun5232t1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (13 pp, sha256
2126d247ae9a907d, retrieved 2026-10-13, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).