onsemi BSS138K is a Silicon MOSFET rated at 50V, 0.22A, 1.6Ω Rdson(max) in SOT-23-3

Datasheet

Device Parameter	Value feedback*
Manufacturer Name	onsemi
Manufacturer Package	SOT-23-3 (Surface Mount, 3 Pins, Thermalpad: None WxL: 2.40 x 2.90mm²)
Configuration	Single
Channel	N-Type
Material	Silicon
BVDSS [V]	50
RDS(ON) typ, max [Ω]	na, 2.5 At VGS = 1.8V, TA = 25°C
ID max [A]	0.22
PD max [W]	0.35
QGS typ, max [nC]	na, na
QGD typ, max [nC]	na, 0.5
QG Total typ, max [nC]	na, 2.4
RthJA max [C/W]	350
RthJC max [C/W]	na
DiscoverEE Calculated Values
ID [A] Calc. @RthJA max TJ=150°C, TA=25°C	0.3 (conservative) Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @ System RthJA = °C/W, TJ=°C, TA=25°C	2.0 (realistic) Approx. value as we assume RDS(on)max @ 150 °C = 2x RDS(on)max @ 25 °C
ID [A] Calc. @RthJC max TJ=150°C, TC=25°C	na
PD [W] Calc. @RthJA max TJ=150°C, TA=25°C	0.4 (conservative)
PD [W] Calc. @ System RthJA = 10 °C/W, TJ=150°C, TA=25°C	12.5 (realistic)
PD [W] Calc. @RthJC max TJ=150°C, TC=25°C	na

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BV_DSS [V]	Package	R_DS(ON) max [Ω]	V_TH [V]	I_D [A]	P_D [W]	Q_{G Total} [nC]	Q_GS [nC]	Q_GD [nC]
50	Surface Mount WxL: 2.37 x 2.92mm² # of Pins: 3 Thermalpad: None	1.1	0.8, 1.6	0.6	0.83	1.8	0.5	0.3
50	Surface Mount WxL: 2.40 x 2.92mm² # of Pins: 3 Thermalpad: None	1.45	0.5, 1	0.5	0.5	0.95	0.34	0.32
50	Surface Mount WxL: 2.37 x 2.92mm² # of Pins: 3 Thermalpad: None	1.5	0.5, 1.5	0.59	0.83	1.4	0.3	0.14
50	Surface Mount WxL: 2.37 x 2.92mm² # of Pins: 3 Thermalpad: None	1.6	0.8, 1.45	0.22	0.35	0.7	0.3	0.1
50	Surface Mount WxL: 2.40 x 2.92mm² # of Pins: 3 Thermalpad: None	1.6	0.8, 1.5	0.5	0.5	1	0.2	0.23
50	Surface Mount WxL: 2.40 x 2.90mm² # of Pins: 3 Thermalpad: None	1.6	0.8, 1.5	0.36	0.35	4	0.5	0.4
50	Surface Mount WxL: 2.30 x 2.90mm² # of Pins: 3 Thermalpad: None	2	0.49, 1	0.4	0.7	1.5	0.1	0.1
50	Surface Mount WxL: 2.30 x 2.93mm² # of Pins: 3 Thermalpad: None	2	0.49, 1	0.28	0.35	0.764	0.148	0.156
50	Surface Mount WxL: 2.30 x 2.90mm² # of Pins: 3 Thermalpad: None	2	1, 2.5	0.38		0.5	0.3	0.1

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