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EMA5T2R

Public Made by Adom

by adom

ROHM Semicon Digital Transistors, SOT-553. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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EMA5T2R

ROHM Semicon · Digital Transistors · SOT-553

EMA5T2R from ROHM Semicon, in a SOT-553. 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 DTr1 IN input Base input of DTr1 (PNP digital transistor with built-in R1 = 2.2kΩ and R2 = 47kΩ); input voltage range -12 to 5 V.
2 GND power_in Common emitter (GND) of DTr1 and DTr2.
3 DTr2 IN input Base input of DTr2 (PNP digital transistor with built-in R1 = 2.2kΩ and R2 = 47kΩ); input voltage range -12 to 5 V.
4 DTr2 OUT output Collector output of DTr2; supply voltage -50 V max, output current -100 mA max.
5 DTr1 OUT output Collector output of DTr1; supply voltage -50 V max, output current -100 mA max.

Key specifications

Parameter Value
Manufacturer ROHM Semicon
Package SOT-553
Category Transistors/Thyristors
Pins 5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -50 V 2
Input voltage VIN -12 5 V 2
Output current IO -100 mA 2
Collector current IC(MAX) -100 mA 2
Power dissipation (EMA5) PD 150 mW Each terminal mounted on a reference land; 120mW per element must not be exceeded 2
Junction temperature Tj 150 ℃ 2
Storage temperature range Tstg -55 150 ℃ 2
Input voltage (off) VI(off) -0.5 V VCC = -5V, IO = -100μA 2
Input voltage (on) VI(on) -1.1 V VO = -0.3V, IO = -5mA 2
Output voltage VO(on) -100 -300 mV IO = -5mA, II = -0.25mA 2
Input current II -3.6 mA VI = -5V 2
Output current (off) IO(off) -500 nA VCC = -50V, VI = 0V 2
DC current gain GI 80 - VO = -5V, IO = -10mA 2
Input resistance R1 1.54 2.2 2.86 kΩ 2
Resistance ratio R2/R1 17 21 26 - 2
Transition frequency fT 250 MHz VCE = -10V, IE = 5mA, f = 100MHz; characteristics of built-in transistor 2

CAD (KiCad official)

  • Symbol: EMA5T2R
  • Footprint: Package_TO_SOT_SMD:SOT-553
  • 3D model: SOT-553 (KiCad packages3D, STEP)
  • 3D model files: ema5t2r-etched.step / ema5t2r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ema5t2r.step / ema5t2r.glb are the bare package body.

Provenance

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

  • Datasheet: ROHM Semicon datasheet (10 pp, sha256 75aad288e3e7f75e, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF