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hot BSS138


For Reference Only

Part Number BSS138
Manufacturer Fairchild/Micross Components
Description DIE MOSFET N-CH 50V LL
Datasheet BSS138 Datasheet
Package TO-236-3, SC-59, SOT-23-3
In Stock 1149058 piece(s)
Unit Price $ 4.0 *
Please request a real-time quote with our sales team. The unit price would influenced by the quantity requested and the supply sources. Thank you!
Lead Time Can Ship Immediately
Estimated Delivery Time Jan 31 - Feb 5 (Choose Expedited Shipping)
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  • To learn about the specification of BSS138, please search the datasheet by clicking the link above. If you couldn't find the correct datasheet, please refer to the manufacturer's official datasheet.
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BSS138 Specifications

ManufacturerFairchild/Micross Components
CategoryDiscrete Semiconductor Products - Transistors - FETs, MOSFETs - Single
Datasheet BSS138 Datasheet
PackageTO-236-3, SC-59, SOT-23-3
FET TypeN-Channel
TechnologyMOSFET (Metal Oxide)
Drain to Source Voltage (Vdss)50V
Current - Continuous Drain (Id) @ 25��C220mA (Ta)
Drive Voltage (Max Rds On, Min Rds On)10V
Vgs(th) (Max) @ Id1.5V @ 1mA
Gate Charge (Qg) (Max) @ Vgs2.4nC @ 10V
Input Capacitance (Ciss) (Max) @ Vds27pF @ 25V
Vgs (Max)��20V
Power Dissipation (Max)360mW (Ta)
Rds On (Max) @ Id, Vgs3.5 Ohm @ 220mA, 10V
Operating Temperature-55°C ~ 150°C (TJ)
Mounting TypeSurface Mount
Supplier Device PackageSOT-23-3
Package / CaseTO-236-3, SC-59, SOT-23-3

BSS138 Datasheet

N-Channel Logic Level Enhancement Mode Field Effect Transistor

General Description

These N-Channel enhancement mode field effect transistors are produced using Fairchild’s proprietary, high cell density, DMOS technology. These products have been designed to minimize on-state resistance while provide rugged, reliable, and fast switching performance.These products are particularly suited for low voltage, low current applications such as small servo motor control, power MOSFET gate drivers, and other switching applications.


  • 0.22 A, 50 V. RDS(ON) = 3.5?6?8 @ VGS = 10 V
    RDS(ON) = 6.0?6?8 @ VGS = 4.5 V
  • High density cell design for extremely low RDS(ON)
  • Rugged and Reliable
  • Compact industry standard SOT-23 surface mount package

Absolute Maximum Rating

Symbol Parameter Ratings Units
VDSS Drain-Source Voltage 50 V
ID Drain Current – Continuous (Note 1) 0.22 A
– Pulsed 0.88
PD Maximum Power Dissipation (Note 1) 0.36 W
Derate Above 25°C 2.8 mW/°C
TJ, TSTG Operating and Storage Junction Temperature Range ?6?155 to +150 °C
TL Maximum Lead Temperature for SolderingPurposes, 1/16” from Case for 10 Seconds300°C

Thermal Characteristics

Symbol Parameter Ratings Units
RθJA Thermal Resistance, Junction-to-Ambient (Note 1) 350 °C/W

Package Marking and Ordering Information

Device Marking Device Reel Size Tape width Quantity
SS BSS138 7’’ 8mm 3000 units

BSS138 Reviews

Average User Rating
5 / 5 (91)
★ ★ ★ ★ ★
5 ★
4 ★
3 ★
2 ★
1 ★


December 20, 2019

The helper is super handy, especially if you work with medium size PCB boards as it allows to hold the board steady in every position. It feels pretty sturdy and of good quality.

Ala***** Levy

May 7, 2019

Quality electronic components plus fast response.Thank you.

Eze*****l Ali

April 19, 2019

Received Quickly. Excellent Communication. Capacitors Look Excellent


April 2, 2019

This product is very easy to replace and solved my problem.


March 30, 2019

The order process is easy and user friendly, very helpful customer service, always fast shipping.


November 26, 2018

Great seller, would recommend buying from. , good communication and problem solving


September 22, 2018

The order has arrived ahead of time, we appreciate it very much!! Thanks

Kath***** Anne

July 10, 2018

Outstanding supplier! Heisener is on a very short list of suppliers I can recommend. From stock, pricing, ease of ordering and great service, they get it all.

Madd***** Felix

June 25, 2018

Awesome buying experience, smooth transmission with the seller, and fast delivery.


June 25, 2018

Reasonable prices, fast shipping, and the best customer service I've ever experienced! Absolutely will share it to my friends.

BSS138 Guarantees

Service Guarantee

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantee

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

BSS138 Packaging

Verify Products
Customized Labels
Professional Packaging

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