FMMT491Q
60V NPN MEDIUM POWER TRANSISTOR IN SOT23
Description
Mechanical Data
This Bipolar Junction Transistor (BJT) is designed to meet the
stringent requirements of automotive applications.
Case: SOT23
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish – Matte Tin Plated Leads, Solderable per
MIL-STD-202, Method 208
Feature
BVCEO > 60V
IC = 1A Continuous Collector Current
Weight 0.008 grams (Approximate)
ICM = 2A Peak Pulse Current
RCE(SAT) = 195mΩ for a Low Equivalent On-Resistance
500mW Power Dissipation
hFE Characterized up to 2A for High Current Gain Hold Up
Complementary PNP Type: FMMT591Q
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
PPAP Capable (Note 4)
SOT23 (Type DN)
C
E
E
C
B
B
Top View
Device Symbol
Top View
Pin-Out
Ordering Information (Note 5)
Part Number
FMMT491QTA
FMMT491QTC
Compliance
Automotive
Automotive
Marking
491
491
Reel Size (inches)
Tape Width (mm)
Quantity per Reel
3,000
7
13
8
8
10,000
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.diodes.com/quality/lead-free/ 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. Automotive products are AEC-Q101 qualified and are PPAP capable. Refer to https://www.diodes.com/quality/.
5. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
Marking Information
491 = Product Type Marking Code
491
1 of 7
www.diodes.com
May 2019
© Diodes Incorporated
FMMT491Q
Document number: DS37009 Rev. 3 - 2