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Contents

README

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SMUN5235DW1T1G

onsemi · Digital Transistors · SOT-363

SMUN5235DW1T1G from onsemi, in a SOT-363. 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 EMITTER 2 passive Emitter of the Q2 NPN transistor in the dual bias resistor transistor network.
2 BASE 2 input Base of the Q2 NPN transistor, which connects to its integrated series base resistor R1 (2.2 k nominal).
3 COLLECTOR 1 passive Collector of the Q1 NPN transistor in the dual bias resistor transistor network; maximum collector current is 100 mAdc.
4 EMITTER 1 passive Emitter of the Q1 NPN transistor in the dual bias resistor transistor network.
5 BASE 1 input Base of the Q1 NPN transistor, which connects to its integrated series base resistor R1 (2.2 k nominal).
6 COLLECTOR 2 passive Collector of the Q2 NPN transistor in the dual bias resistor transistor network; maximum collector current is 100 mAdc.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOT-363
Category Triode/MOS Tube/Transistor
Pins 6

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 50 Vdc 1
Collector-Emitter Voltage VCEO 50 Vdc 1
Collector Current - Continuous IC 100 mAdc 1
Input Forward Voltage VIN(fwd) 12 Vdc 1
Input Reverse Voltage VIN(rev) 5 Vdc 1
Collector-Base Cutoff Current ICBO 100 nAdc VCB = 50 V, IE = 0 3
Collector-Emitter Cutoff Current ICEO 500 nAdc VCE = 50 V, IB = 0 3
Emitter-Base Cutoff Current IEBO 0.2 mAdc VEB = 6.0 V, IC = 0 3
Collector-Base Breakdown Voltage V(BR)CBO 50 Vdc IC = 10 A, IE = 0 3
Collector-Emitter Breakdown Voltage V(BR)CEO 50 Vdc IC = 2.0 mA, IB = 0 3
DC Current Gain hFE 80 140 IC = 5.0 mA, VCE = 10 V 3
Collector-Emitter Saturation Voltage VCE(sat) 0.25 V IC = 10 mA, IB = 1.0 mA 3
Output Voltage (On) VOL 0.2 Vdc VCC = 5.0 V, VB = 2.5 V, RL = 1.0 k 3
Output Voltage (Off) VOH 4.9 Vdc VCC = 5.0 V, VB = 0.5 V, RL = 1.0 k 3
Input Resistor R1 R1 1.5 2.2 2.9 k 3
Resistor Ratio R1/R2 R1/R2 0.038 0.047 0.056 3
Input Voltage (Off) Vi(off) 0.6 Vdc VCE = 5.0 V, IC = 100 A 3
Input Voltage (On) Vi(on) 0.8 Vdc VCE = 0.2 V, IC = 5.0 mA 3
Total Device Dissipation, one junction heated PD 187 mW TA = 25°C (Note 1) 2
Total Device Dissipation, one junction heated PD 256 mW TA = 25°C (Note 2) 2
Derate above 25°C, one junction heated 1.5 mW/°C Derate above 25°C (Note 1) 2
Derate above 25°C, one junction heated 2 mW/°C Derate above 25°C (Note 2) 2
Thermal Resistance, Junction to Ambient, one junction heated RJA 670 °C/W Junction to Ambient (Note 1) 2
Thermal Resistance, Junction to Ambient, one junction heated RJA 490 °C/W Junction to Ambient (Note 2) 2
Total Device Dissipation, both junctions heated PD 250 mW TA = 25°C (Note 1) 2
Total Device Dissipation, both junctions heated PD 385 mW TA = 25°C (Note 2) 2
Derate above 25°C, both junctions heated 2 mW/°C Derate above 25°C (Note 1) 2
Derate above 25°C, both junctions heated 3 mW/°C Derate above 25°C (Note 2) 2
Thermal Resistance, Junction to Ambient, both junctions heated RJA 493 °C/W Junction to Ambient (Note 1) 2
Thermal Resistance, Junction to Ambient, both junctions heated RJA 325 °C/W Junction to Ambient (Note 2) 2
Thermal Resistance, Junction to Lead RJL 188 °C/W Junction to Lead (Note 1) 2
Thermal Resistance, Junction to Lead RJL 208 °C/W Junction to Lead (Note 2) 2
Junction and Storage Temperature Range TJ, Tstg -55 150 °C 2

CAD (KiCad official)

  • Symbol: SMUN5235DW1T1G
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: smun5235dw1t1g-etched.step / smun5235dw1t1g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); smun5235dw1t1g.step / smun5235dw1t1g.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (11 pp, sha256 ea0470a50d6dd1c4, retrieved 2026-10-27, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF