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Contents

Pinout
Key specifications
Electrical characteristics
Materials and finish
CAD (KiCad official)
Provenance

README

markdown

DTC114YE-MS

MSKSEMI · Bipolar (BJT) · SOT-523

DTC114YE-MS from MSKSEMI, in a SOT-523. 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 (input) of the NPN digital transistor, connected through R1 = 10 kΩ (7.0 to 13 kΩ); R1/R2 ratio is 0.21 typ.
2	E	power_in	Emitter (ground) of the transistor, connected to R2 = 47 kΩ internally; collector-emitter voltage limit is 50 V.
3	C	output	Collector (output) of the transistor, rated for 50 V VCEO and 100 mA continuous collector current.

Key specifications

Parameter	Value
Manufacturer	MSKSEMI
Package	SOT-523
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	nA	VCB =50V, IE =0A	3
Collector-Emitter Cutoff Current	ICEO			500	nA	VCE =50V, IB =0A	3
Emitter-Base Cutoff Current	IEBO			0.2	mA	VEB =6.0V, IC =0A	3
Collector-Base Breakdown Voltage	V(BR)CBO	50			Volts	IC =10uA, IE =0A	3
Collector-Emitter Breakdown Voltage (Note 1: pulse test)	V(BR)CEO	50			Volts	IC =2.0mA, IB =0A	3
DC Current Gain	HFE	80	140			VCE =10V, IC =5.0mA	4
Collector-Emitter Saturation Voltage	VCE(sat)			0.25	Volts	IC=10mA, IB=0.3mA	4
Output Voltage (on) LOW	VOL			0.2	Volts	RL= 1.0KΩ, VCC=5.0V, VB=2.5V	4
Output Voltage (on) HIGH	VOH	4.9			Volts	RL= 1.0KΩ, VCC=5.0V, VB=0.5V	5
Input Resistor R1	R1	7	10	13	KΩ		5
Resistor Ratio R1/R2	R1/R2	0.17	0.21	0.25			5
Input Resistor R2 (nominal, marking table)	R2		47		KΩ	Nominal value from Device Marking & Resistor Values table; no tolerance printed	3
Collector-Base Voltage	VCBO			50	V		2
Collector-Emitter Voltage	VCEO			50	V		2
Collector Current	IC			100	mA		2
Power Dissipation	PD			150	mW		2
Junction & Storage Temperature Range	TJ TSTG	-55		150	°C		2
Thermal Resistance from Junction to Ambient	RθJA			600	°C /W		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		tin	 Matte Tin(Sn) Lead Finish  Weight: approx. 0.002g SOT-523	2

CAD (KiCad official)

Symbol: DTC114YE-MS
Footprint: Package_TO_SOT_SMD:SOT-523
3D model: SOT-523, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 0.8 mm nominal SOT-523 height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
3D model files: dtc114ye-ms-etched.step / dtc114ye-ms-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dtc114ye-ms.step / dtc114ye-ms.glb are the bare package body.

Provenance

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

Datasheet: MSKSEMI datasheet (7 pp, sha256 68e1642e6230d629, retrieved 2026-10-17, tier: lcsc)
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