Diodes FMMT491Q User Manual
A
f
E
B
Product Line o
Diodes Incorporated
Description
This Bipolar Junction Transistor (BJT) has been designed to meet the
stringent requirements of Automotive Applications.
Feature
• BV
• I
• I
• R
• 500mW Power Dissipation
• h
• 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)
> 60V
CEO
= 1A Continuous Collector Current
C
= 2A Peak Pulse Current
CM
= 195mΩ for a low equivalent On-Resistance
CE(sat)
characterised up to 2A for high current gain hold up
FE
SOT23
Top View Device Symbol
B
FMMT491Q
60V NPN MEDIUM POWER TRANSISTOR IN SOT23
Mechanical Data
• 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
• Weight 0.008 grams (approximate)
C
C
E
Top View
Pin-Out
Ordering Information (Notes 4 & 5)
Part Number Compliance Marking Reel size (inches) Tape width (mm) Quantity per reel
FMMT491QTA Automotive 491 7 8 3,000
FMMT491QTC Automotive 491 13 8 10,000
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. Automotive products are AEC-Q101 qualified and are PPAP capable. Automotive, AEC-Q101 and standard products are electrically and thermally the
same, except where specified. For more information, please refer to http://www.diodes.com/quality/product_compliance_definitions/.
5. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
491
FMMT491Q
Document number: DS37009 Rev. 1 - 2
491 = Product Type Marking Code
1 of 7
www.diodes.com
March 2014
© Diodes Incorporated
A
f
Product Line o
Diodes Incorporated
Absolute Maximum Ratings (@T
Characteristic Symbol Value Unit
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Continuous Collector Current
Peak Pulse Current
Base Current
Thermal Characteristics (@T
= +25°C, unless otherwise specified.)
A
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
Thermal Resistance, Junction to Ambient (Note 6)
Thermal Resistance, Junction to Lead (Note 7)
Operating and Storage Temperature Range
ESD Ratings (Note 8)
= +25°C, unless otherwise specified.)
A
V
CBO
V
CEO
V
EBO
I
C
I
CM
I
B
P
D
R
JA
θ
R
JL
θ
T
J, TSTG
FMMT491Q
80 V
60 V
7 V
1 A
2 A
200 mA
500 mW
250
197
-55 to +150
°C/W
°C/W
°C
Characteristic Symbol Value Unit JEDEC Class
Electrostatic Discharge - Human Body Model ESD HBM 4,000 V 3A
Electrostatic Discharge - Machine Model ESD MM 400 V C
Notes: 6. For a device mounted with the collector lead on 15mm x 15mm 1oz copper that is on a single-sided 1.6mm FR4 PCB; device is measured under still air
conditions whilst operating in a steady-state.
7. Thermal resistance from junction to solder-point (at the end of the collector lead).
8. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
FMMT491Q
Document number: DS37009 Rev. 1 - 2
2 of 7
www.diodes.com
March 2014
© Diodes Incorporated
A
f
Product Line o
Diodes Incorporated
Thermal Characteristics and Derating Information
240
15 x 15mm FR4 1oz Copper
200
160
D=0.5
120
80
D=0.2
40
0
100µ 1m 10m 100m 1 10 100 1k
Thermal Resistance (°C/W)
D=0.1
Pulse Width (s)
Single Pulse
D=0.05
Transient Thermal Impedance
15 x 15mm FR4 1oz Copper
100
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0 20 40 60 80 100 120 140 160
Max Power Dissipation (W)
15 x 15mm FR4 1oz Copper
Temperature (°C)
Derating Curve
FMMT491Q
10
1
0.1
100µ 1m 10m 100m 1 10 100 1k
Max Power Dissipation (W)
Pulse Width (s)
Pulse Power Dissipation
FMMT491Q
Document number: DS37009 Rev. 1 - 2
3 of 7
www.diodes.com
March 2014
© Diodes Incorporated
Loading...