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RN1902

Public Made by Adom

by adom

TOSHIBA(东芝) , SOT363. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.

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RN1902

TOSHIBA(东芝) · IC · SOT363

RN1902 from TOSHIBA(东芝), in a SOT363. 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 Emitter1 passive Emitter of transistor Q1 (NPN with built-in 10 kΩ base resistor R1 and 10 kΩ base-emitter resistor R2).
2 Base1 input Base (input) of transistor Q1 through built-in R1 = 10 kΩ, with R1/R2 ratio of 1.0.
3 Collector2 passive Collector of transistor Q2; VCEO rated 50 V and IC max 100 mA.
4 Emitter2 passive Emitter of transistor Q2 (NPN with built-in 10 kΩ base resistor R1 and 10 kΩ base-emitter resistor R2).
5 Base2 input Base (input) of transistor Q2 through built-in R1 = 10 kΩ, with R1/R2 ratio of 1.0.
6 Collector1 passive Collector of transistor Q1; VCEO rated 50 V and IC max 100 mA.

Key specifications

Parameter Value
Manufacturer TOSHIBA(东芝)
Package SOT363
Category
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
Bias resistor R1 (input resistance) R1 7 10 13 kΩ 4
Resistor ratio R1/R2 (RN1901~RN1904 group) R1/R2 0.9 1 1.1 4
DC current gain hFE 50 VCE = 5 V, IC = 10 mA 4
Collector cut-off current ICBO 100 nA VCB = 50 V, IE = 0 mA 4
Collector cut-off current ICEO 500 nA VCE = 50 V, IB = 0 mA 4
Collector-emitter saturation voltage VCE(sat) 0.3 V IC = 5 mA, IB = 0.25 mA 4
Collector-base voltage VCBO 50 V Ta = 25 °C, Q1/Q2 common 3
Collector-emitter voltage VCEO 50 V Ta = 25 °C, RN1901~RN1904 3
Emitter-base voltage VEBO 10 V Ta = 25 °C, RN1901~RN1904 3
Collector current IC 100 mA Ta = 25 °C 3
Collector power dissipation PC 200 mW Total rating, Ta = 25 °C 3
Junction temperature Tj 150 °C 3
Storage temperature Tstg -55 150 °C 3

CAD (KiCad official)

  • Symbol: RN1902
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT363 (KiCad packages3D, STEP)
  • 3D model files: rn1902-etched.step / rn1902-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rn1902.step / rn1902.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA(东芝) datasheet (11 pp, sha256 9c180bf7af9d8072, retrieved 2026-10-21, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF