transistors-thyristors

BSS138L

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the BSS138L and BVSS138L N-Channel Power MOSFETs in a miniature SOT-23 package. It serves as a technical reference for designers needing low-voltage switching components suitable for portable electronics like computers, phones, and battery-powered devices. Key parameters include 50V drain-source voltage rating, 200mA continuous current, a low threshold voltage of 0.5V to 1.5V, and an on-resistance of 3.5 ohms at full load. The device is RoHS compliant, Pb-free, and qualified for automotive applications.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
rds on — 3.5 Ohm —
operating temperature -55 °C — 150 °C
power dissipation — — 225 mW
breakdown voltage ds — — 50 V
drain current — — 201 A
vgs threshold 500 mV — 1.5 V
input capacitance — 40 pF —
output capacitance 12 pF — 25 pF (VDS = 25 Vdc, VGS = 0, f = 1 MHz)
reverse transfer capacitance 3.5 pF — 5 pF (VDG = 25 Vdc, VGS = 0, f = 1 MHz)
collector emitter voltage — 50 V —
03 — Alternatives

Closest matches to BSS138L

BSS138-7-F 2.5× lower rds on, 1.9× higher reverse transfer capacitance, 1.5× higher breakdown voltage ds
2N7002 3.7× higher power dissipation, 2.7× lower output capacitance, 2.0× higher vgs threshold
2N7002K 4.4× lower output capacitance, 2.9× lower rds on, 1.6× higher power dissipation
FDV303N 10.6× lower rds on, 2.1× higher reverse transfer capacitance, 2.0× lower breakdown voltage ds
2N7002-13-F 2.1× lower reverse transfer capacitance, 1.8× lower input capacitance, 1.8× higher vgs threshold
2N7002K-T1 3.1× lower output capacitance, 1.8× lower rds on, 1.8× higher vgs threshold
AO3402 6.2× higher power dissipation, 5.9× higher input capacitance, 4.2× higher reverse transfer capacitance
DMG1012T-13 11.7× lower rds on, 2.5× lower breakdown voltage ds, 2.5× lower collector emitter voltage
04 — FAQ

Frequently asked questions

What is the breakdown voltage ds of the BSS138L?

The breakdown voltage ds is 50 V.

What is the collector-emitter voltage of the BSS138L?

The collector-emitter voltage is 50 V.

What is the drain current?

The drain current is 201 A.

What is the input capacitance of the BSS138L?

The input capacitance is 40 pF.

What is the maximum operating temperature of the BSS138L?

The maximum operating temperature is 150 °C.

What is the output capacitance of the BSS138L when VDS = 25 Vdc, VGS = 0, and f = 1 MHz?

The output capacitance is 25 pF.

What is the power dissipation of the BSS138L?

The power dissipation is 225 mW.

What is the maximum on-resistance (rds on) of the BSS138L?

The maximum on-resistance (rds on) is 3.5 Ohm.

Refine this search on whatic.io →