Datasheets
BSS138W by:

N-Channel Logic Level Enhancement Mode Field Effect Transistor 50 , 210mA, 3.5Ω, SC-70-3 / SOT-323-3, 3000-REEL

Part Details for BSS138W by onsemi

Results Overview of BSS138W by onsemi

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

BSS138W Information

BSS138W by onsemi is a Small Signal Field-Effect Transistor.
Small Signal Field-Effect Transistors are under the broader part category of Transistors.

A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.

Price & Stock for BSS138W

Part # Distributor Description Stock Price Buy
DISTI # 31Y0562
Newark Mosfet, N Ch, 50V, 0.21A, Sot-323-3, Channel Type:N Channel, Drain Source Voltage Vds:50V, Continuous Drain Current Id:210Ma, Transistor Mounting:Surface Mount, Rds(On) Test Voltage:10V, Gate Source Threshold Voltage Max:1.3V Rohs Compliant: Yes |Onsemi BSS138W RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape 98034
  • 1 $0.2700
  • 10 $0.1680
  • 25 $0.1440
  • 50 $0.1200
  • 100 $0.0950
  • 250 $0.0920
  • 500 $0.0870
  • 1,000 $0.0840
$0.0840 / $0.2700 Buy Now
DISTI # 29AC2876
Newark Fet 50V 3.5 Ohm Sot23 Rohs Compliant: Yes |Onsemi BSS138W RoHS: Compliant Min Qty: 3000 Package Multiple: 1 Date Code: 0 Container: Reel 24000
  • 3,000 $0.0670
  • 6,000 $0.0640
  • 12,000 $0.0610
  • 18,000 $0.0590
  • 30,000 $0.0570
$0.0570 / $0.0670 Buy Now
DISTI # 85AC1481
Newark Mosfet, N Ch, 50V, 0.21A, Sot-323-3, Transistor Polarity:N Channel, Continuous Drain Current Id:210Ma, Drain Source Voltage Vds:50V, On Resistance Rds(On):1.17Ohm, Rds(On) Test Voltage Vgs:10V, Threshold Voltage Vgs:1.3V, Power Rohs Compliant: Yes |Onsemi BSS138W RoHS: Compliant Min Qty: 3000 Package Multiple: 1 Date Code: 1 Container: Reel 0
  • 3,000 $0.0590
  • 6,000 $0.0570
  • 12,000 $0.0550
  • 18,000 $0.0540
  • 30,000 $0.0530
$0.0530 / $0.0590 Buy Now
DISTI # BSS138W
Avnet Americas Trans MOSFET N-CH 50V 0.21A 3-Pin SOT-323 T/R - Tape and Reel (Alt: BSS138W) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 22 Weeks, 0 Days Container: Reel 24000
  • 3,000 $0.0650
  • 6,000 $0.0647
  • 12,000 $0.0461
  • 18,000 $0.0458
  • 24,000 $0.0456
$0.0456 / $0.0650 Buy Now
DISTI # 31Y0562
Avnet Americas Trans MOSFET N-CH 50V 0.21A 3-Pin SOT-323 T/R - Product that comes on tape, but is not reeled (Alt: 31Y0562) RoHS: Compliant Min Qty: 5 Package Multiple: 5 Container: Ammo Pack 0
  • 1 $0.3850
  • 10 $0.2360
  • 25 $0.2070
  • 50 $0.1770
  • 100 $0.1480
$0.1480 / $0.3850 Buy Now
DISTI # 73928884
RS Transistor, MOSFET, N-channel, 50V, 210MA, logic level, fast switching, SOT323 | ON Semiconductor BSS138W RoHS: Compliant Min Qty: 100 Package Multiple: 1 Lead time: 2 Weeks, 0 Days Container: Bulk 0
  • 100 $0.0700
  • 200 $0.0670
$0.0670 / $0.0700 RFQ
Bristol Electronics   Min Qty: 45 2142
  • 45 $0.1125
  • 135 $0.0563
  • 890 $0.0338
$0.0338 / $0.1125 Buy Now
DISTI # BSS138W
TME Transistor: N-MOSFET, unipolar, 50V, 0.21A, 0.34W, SC70,SOT323 Min Qty: 1 1497
  • 1 $0.3426
  • 10 $0.2053
  • 25 $0.1628
  • 50 $0.1373
  • 100 $0.1169
  • 500 $0.0840
  • 1,500 $0.0699
  • 3,000 $0.0633
  • 9,000 $0.0605
$0.0605 / $0.3426 Buy Now
ComSIT USA N CHANNEL LOGIC LEVEL ENHANCEMENT MODE FIELD EFFECT TRANSISTOR Small Signal Field-Effect Transistor, 0.21A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET RoHS: Compliant Stock DE - 3000
Stock ES - 0
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ
DISTI # BSS138W
Richardson RFPD POWER MOSFET TRANSISTOR RoHS: Compliant Min Qty: 15000 0
  • 15,000 $0.0500
$0.0500 Buy Now
DISTI # BSS138W
Avnet Asia Trans MOSFET N-CH 50V 0.21A 3-Pin SOT-323 T/R (Alt: BSS138W) RoHS: Compliant Min Qty: 15000 Package Multiple: 15000 Lead time: 22 Weeks, 0 Days 0
  • 15,000 $0.1089
  • 30,000 $0.0781
$0.0781 / $0.1089 Buy Now
DISTI # BSS138W
Avnet Silica Trans MOSFET N-CH 50V 0.21A 3-Pin SOT-323 T/R (Alt: BSS138W) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 23 Weeks, 0 Days Silica - 0
Buy Now
DISTI # C1S226600785914
Chip1Stop MOSFET Container: Cut Tape 5850
  • 25 $0.1570
  • 50 $0.1170
  • 100 $0.0814
  • 200 $0.0744
  • 500 $0.0741
  • 1,000 $0.0701
  • 2,000 $0.0655
  • 3,000 $0.0497
$0.0497 / $0.1570 Buy Now
CHIPMALL.COM LIMITED 50V 0.21A 6@4.5V,0.22A 340mW 1.5V@1mA 1 N-Channel SOT-323-3 MOSFETs ROHS 2776
  • 5 $0.1031
  • 50 $0.0824
  • 150 $0.0721
  • 500 $0.0643
  • 3,000 $0.0581
  • 6,000 $0.0549
$0.0549 / $0.1031 Buy Now
DISTI # BSS138W
EBV Elektronik Trans MOSFET N-CH 50V 0.21A 3-Pin SOT-323 T/R (Alt: BSS138W) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 24 Weeks, 0 Days EBV - 3000
Buy Now
LCSC 50V 0.21A 64.5V0.22A 340mW 1.5V1mA 1 N-channel SOT-323-3 MOSFETs ROHS 2309
  • 5 $0.1074
  • 50 $0.0858
  • 150 $0.0751
  • 500 $0.0670
  • 3,000 $0.0605
  • 6,000 $0.0572
$0.0572 / $0.1074 Buy Now
New Advantage Corporation   RoHS: Compliant Min Qty: 1 Package Multiple: 3000 3000
  • 3,000 $0.1952
$0.1952 Buy Now

Part Details for BSS138W

BSS138W CAD Models

BSS138W Part Data Attributes

BSS138W onsemi
Buy Now Datasheet
Compare Parts:
BSS138W onsemi N-Channel Logic Level Enhancement Mode Field Effect Transistor 50 , 210mA, 3.5Ω, SC-70-3 / SOT-323-3, 3000-REEL
Pbfree Code Yes
Part Life Cycle Code Active
Ihs Manufacturer ONSEMI
Part Package Code SC-70-3 / SOT-323-3
Package Description SOT-323, 3 PIN
Manufacturer Package Code 419AB
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8541.21.00.95
Samacsys Manufacturer onsemi
Additional Feature ULTRA-LOW RESISTANCE
Configuration SINGLE WITH BUILT-IN DIODE
DS Breakdown Voltage-Min 50 V
Drain Current-Max (ID) 0.21 A
Drain-source On Resistance-Max 6 Ω
FET Technology METAL-OXIDE SEMICONDUCTOR
Feedback Cap-Max (Crss) 3.5 pF
JESD-30 Code R-PDSO-G3
JESD-609 Code e3
Moisture Sensitivity Level 1
Number of Elements 1
Number of Terminals 3
Operating Mode ENHANCEMENT MODE
Operating Temperature-Max 150 °C
Operating Temperature-Min -55 °C
Package Body Material PLASTIC/EPOXY
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) NOT SPECIFIED
Polarity/Channel Type N-CHANNEL
Power Dissipation Ambient-Max 0.34 W
Power Dissipation-Max (Abs) 0.34 W
Qualification Status Not Qualified
Surface Mount YES
Terminal Finish Matte Tin (Sn) - annealed
Terminal Form GULL WING
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Transistor Application SWITCHING
Transistor Element Material SILICON

Alternate Parts for BSS138W

This table gives cross-reference parts and alternative options found for BSS138W. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BSS138W, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
BSS138W WEITRON INTERNATIONAL CO., LTD. Check for Price Small Signal Field-Effect Transistor, 0.2A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, LEAD FREE, SC-70, 3 PIN BSS138W vs BSS138W
Part Number Manufacturer Composite Price Description Compare
BSS138WT/R7 PanJit Semiconductor Check for Price Small Signal Field-Effect Transistor, 0.3A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, ROHS COMPLIANT PACKAGE-3 BSS138W vs BSS138WT/R7
BSS138WL6327 Infineon Technologies AG Check for Price Small Signal Field-Effect Transistor, 0.28A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, GREEN, PLASTIC PACKAGE-3 BSS138W vs BSS138WL6327
BSS138WGL6433 Infineon Technologies AG Check for Price Small Signal Field-Effect Transistor, 0.28A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, ROHS COMPLIANT, PLASTIC PACKAGE-3 BSS138W vs BSS138WGL6433
BSS138W_R1_00001 PanJit Semiconductor Check for Price Small Signal Field-Effect Transistor, 0.3A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, GREEN, PLASTIC PACKAGE-3 BSS138W vs BSS138W_R1_00001
BSS138WGL6327 Infineon Technologies AG Check for Price Small Signal Field-Effect Transistor, 0.28A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, ROHS COMPLIANT, PLASTIC PACKAGE-3 BSS138W vs BSS138WGL6327
BSS138W_R2_00001 PanJit Semiconductor Check for Price Small Signal Field-Effect Transistor, 0.3A I(D), 50V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, GREEN, PLASTIC PACKAGE-3 BSS138W vs BSS138W_R2_00001

Resources and Additional Insights for BSS138W

Reference Designs related to BSS138W

  • 15W Qi transmitter for charging smartphones
    The 15W wireless power transmitter evaluation module is a high-performance, easy-to-use development kit designed for applications up to 15W of power transfer. It supports an input voltage range of 9-12V and is compatible with QC 3.0 adapters.

BSS138W Related Parts

BSS138W Frequently Asked Questions (FAQ)

  • The BSS138W can operate from -55°C to 150°C, but the recommended operating temperature range is -40°C to 125°C.

  • To ensure proper biasing, the gate-source voltage (Vgs) should be between 2.5V and 10V, and the drain-source voltage (Vds) should be between 1.5V and 50V.

  • The maximum continuous drain current (Id) for the BSS138W is 1.4A, and the maximum pulsed drain current is 4.2A.

  • To protect the BSS138W from ESD, handle the device by the body or use an anti-static wrist strap, and ensure the device is stored in an anti-static bag or container.

  • The typical turn-on time (ton) for the BSS138W is 10ns, and the typical turn-off time (toff) is 20ns.

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