A Product Line of
Diodes Incorporated
ZUMT491
NPN SMALL SIGNAL SURFACE MOUNT TRANSISTOR IN SOT323
Features
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Low saturation voltage
500mW power dissipation
I
C
= 1A high Continuous Current
Ideally suited for space / weight critical applicatons
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
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Case: SOT323
Case material: molded plastic. “Green” molding compound.
UL Flammability Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Finish - Matte Tin Plated Leads, Solderable per
MIL-STD-202, Method 208
Weight: 0.006 grams (Approximate)
SOT323
C
E
C
B
Top View
Pin Out
B
E
Top View
Device Symbol
Ordering Information
(Note 4)
Product
ZUMT491TA
Notes:
Marking
T91
Reel size (inches)
7
Tape width (mm)
8
Quantity per reel
3,000
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com 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
Marking Information
T91
T91 = Product Type Marking Code
ZUMT491
Document number: DS33334 Rev. 3 - 2
1 of 7
October 2012
© Diodes Incorporated
DIODES [ DIODES INCORPORATED ]
