BSS138
Document number: DS30144 Rev. 20 - 2
1 of 5
www.diodes.com
November 2013
© Diodes Incorporated
BSS138
N-CHANNEL ENHANCEMENT MODE MOSFET
Features
• Low On-Resistance
• Low Gate Threshold Voltage
• Low Input Capacitance
• Fast Switching Speed
• Low Input/Output Leakage
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
• Case: SOT23
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminals: Matte Tin Finish annealed over Alloy 42 leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
• Terminal Connections: See Diagram
• Weight: 0.008 grams (approximate)
Ordering Information
(Note 4)
Part Number Qualification Case Packaging
BSS138-7-F Commercial SOT23 3000/Tape & Reel
BSS138Q-7-F Automotive SOT23 3000/Tape & Reel
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html
Marking Information
Date Code Key
Year 1998 1999 2000 2001 2002 2003 2004 … 2011 2012 2013 2014 2015 2016 2017
Code J K L M N P R … Y Z A B C D E
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
SOT23
Top View
E
uivalent Circuit
To
View
D
G
S
K38 = Product Type Marking Code
YM = Date Code Marking for SAT (Shanghai Assembly/ Test site)
Y
̅
M = Date Code Marking for CAT (Chengdu Assembly/ Test site)
Y or Y
̅
= Year (ex: A = 2013)
M = Month (ex: 9 = September)
Source
Gate
Drain
Shanghai A/T Site
Chengdu A/T Site
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