A Product Line of
Diodes Incorporated
FMMT491
60V NPN MEDIUM POWER TRANSISTOR IN SOT23
Feature
BV
CEO
> 60V
I
C
= 1A Continuous Collector Current
I
CM
= 2A Peak Pulse Current
R
CE(sat)
= 195mΩ for a Low Equivalent On-Resistance
500mW Power Dissipation
h
FE
Characterized up to 2A for High Current Gain Hold up
Complementary PNP Type: FMMT591
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, “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)
SOT23
C
E
C
B
B
E
Top View
Device Symbol
Top View
Pin-Out
Ordering Information
(Note 4)
Part Number
FMMT491TA
FMMT491TC
Notes:
Compliance
AEC-Q101
AEC-Q101
Marking
491
491
Reel size (inches)
7
13
Tape width (mm)
8
8
Quantity per reel
3,000
10,000
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/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
SOT23
491
491 = Product Type Marking Code
FMMT491
Document number: DS33091 Rev. 8 - 2
1 of 7
www.diodes.com
February 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491
Absolute Maximum Ratings
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Continuous Collector Current
Peak Pulse Current
Base Current
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
CM
I
B
Value
80
60
7
1
2
200
Unit
V
V
V
A
A
mA
Thermal Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Power Dissipation (Note 5)
Thermal Resistance, Junction to Ambient (Note 5)
Thermal Resistance, Junction to Lead (Note 6)
Operating and Storage Temperature Range
Symbol
P
D
R
JA
R
JL
T
J,
T
STG
Value
500
250
197
-55 to +150
Unit
mW
°C/W
°C/W
°C
ESD Ratings
(Note 7)
Characteristic
Electrostatic Discharge - Human Body Model
Electrostatic Discharge - Machine Model
Notes:
Symbol
ESD HBM
ESD MM
Value
4,000
400
Unit
V
V
JEDEC Class
3A
C
5. 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.
6. Thermal resistance from junction to solder-point (at the end of the collector lead).
7. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
FMMT491
Document number: DS33091 Rev. 8 - 2
2 of 7
www.diodes.com
February 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491
Thermal Characteristics and Derating Information
0.6
Max Power Dissipation (W)
Thermal Resistance (°C/W)
240
200
160
120
80
40
0
100µ
15 x 15mm FR4 1oz Copper
15 x 15mm FR4 1oz Copper
0.5
0.4
0.3
0.2
0.1
0.0
0
20
40
60
80
100 120 140 160
D=0.5
D=0.2
Single Pulse
D=0.05
D=0.1
1m
10m 100m
1
10
100
1k
Pulse Width (s)
Temperature (°C)
Transient Thermal Impedance
Derating Curve
Max Power Dissipation (W)
15 x 15mm FR4 1oz Copper
100
10
1
0.1
100µ
1m
10m 100m
1
10
100
1k
Pulse Width (s)
Pulse Power Dissipation
FMMT491
Document number: DS33091 Rev. 8 - 2
3 of 7
www.diodes.com
February 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491
Electrical Characteristics
Characteristic
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage (Note 8)
Emitter-Base Breakdown Voltage
Collector Cutoff Current
Emitter Cutoff Current
Collector Emitter Cutoff Current
(@T
A
= +25°C, unless otherwise specified.)
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
I
CES
Min
80
60
7
—
—
—
100
Static Forward Current Transfer Ratio (Note 8)
h
FE
100
80
30
Collector-Emitter Saturation Voltage (Note 8)
Base-Emitter Turn-On Voltage(Note 8)
Base-Emitter Saturation Voltage(Note 8)
Output Capacitance
Transition Frequency
Note:
Typ
—
—
8.1
<1
<1
<1
140
150
120
40
100
160
830
965
—
—
Max
—
—
—
100
100
100
—
300
—
—
150
250
1000
1100
10
—
Unit
V
V
V
nA
nA
nA
Test Condition
I
C
= 100µA
I
C
= 10mA
I
E
= 100µA
V
CB
= 60V
V
EB
= 5.6V
V
CE
= 60V, V
CES
= 60V
I
C
= 1mA, V
CE
= 5V
I
C
= 500mA, V
CE
= 5V
I
C
= 1A, V
CE
= 5V
I
C
= 2A, V
CE
= 5V
I
C
= 500mA, I
B
= 50mA
I
C
= 1A, I
B
= 100mA
I
C
= 1A, V
CE
= 5V
I
C
= 1A, I
B
= 100mA
V
CB
= 10V, f = 1MHz
V
CE
= 10V, I
C
= 50mA,
f = 100MHz
—
V
CE(sat)
V
BE(on)
V
BE(sat)
C
obo
f
T
—
—
—
—
—
150
mV
mV
mV
pF
MHz
8. Measured under pulsed conditions. Pulse width ≤ 300µs. Duty cycle ≤ 2%.
FMMT491
Document number: DS33091 Rev. 8 - 2
4 of 7
www.diodes.com
February 2015
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491
Typical Electrical Characteristics
1
Tamb=25°C
I
C
/I
B
=100
(@T
A
= +25°C, unless otherwise specified.)
0.7
0.6
0.5
I
C
/I
B
=10
150°C
100°C
V
CE(SAT)
(V)
V
CE(SAT)
(V)
0.4
0.3
0.2
100m
I
C
/I
B
=50
25°C
I
C
/I
B
=10
0.1
10
0.0
10m
100m
1
-55°C
10m
1m
10m
I
C
Collector Current (A)
100m
1
I
C
Collector Current (A)
V
CE(SAT)
v I
C
1.6
1.4
150°C
V
CE
=5V
300
V
CE(SAT)
v I
C
1.2
I
C
/I
B
=10
-55°C
Normalised Gain
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1m
250
100°C
25°C
Typical Gain (h
FE
)
1.0
25°C
200
150
100
50
V
BE(SAT)
(V)
0.8
0.6
0.4
1m
10m
150°C
-55°C
100°C
10m
100m
1
0
I
C
Collector Current (A)
I
C
Collector Current (A)
100m
1
h
FE
v I
C
1.2
V
CE
=5V
-55°C
25°C
V
BE(SAT)
v I
C
1.0
V
BE(ON)
(V)
0.8
0.6
100°C
0.4
150°C
0.2
1m
I
C
Collector Current (A)
10m
100m
1
V
BE(ON)
v I
C
FMMT491
Document number: DS33091 Rev. 8 - 2
5 of 7
www.diodes.com
February 2015
© Diodes Incorporated
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