A Product Line of
Diodes Incorporated
FMMT491A
40V NPN SILICON PLANAR MEDIUM POWER TRANSISTOR IN SOT23
Feature
•
•
•
•
•
•
•
•
•
•
BV
CEO
> 40V
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
characterised up to 2A for high current gain hold up
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)
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
(Notes 4 & 5)
Part Number
FMMT491ATA
FMMT491ATC
FMMT491AQTA
FMMT491AQTC
Notes:
Compliance
AEC-Q101
AEC-Q101
Automotive
Automotive
Marking
41A
41A
41A
41A
Reel size (inches)
7
13
7
13
Tape width (mm)
8
8
8
8
Quantity per reel
3,000
10,000
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 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.
5. For packaging details, go to our website at http://www.diodes.com
Marking Information
491
41A
41A = Product Type Marking Code
FMMT491A
Document number: DS33092 Rev. 4 - 2
1 of 7
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491A
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
40
40
7
1
2
200
Unit
V
V
V
A
A
mA
Thermal Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Power Dissipation (Note 6)
Thermal Resistance, Junction to Ambient (Note 6)
Thermal Resistance, Junction to Lead (Note 7)
Operating and Storage Temperature Range
Symbol
P
D
R
θ
JA
R
θ
JL
T
J,
T
STG
Value
500
250
197
-55 to +150
Unit
mW
°C/W
°C/W
°C
ESD Ratings
(Note 8)
Characteristic
Electrostatic Discharge - Human Body Model
Electrostatic Discharge - Machine Model
Notes:
Symbol
ESD HBM
ESD MM
Value
≥
8,000
≥
400
Unit
V
V
JEDEC Class
3B
C
6. For a device surface mounted on 15mm X 15mm FR4 PCB with high coverage of single sided 1 oz copper, in still air conditions; the device is measured
when operating in a steady-state condition.
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.
FMMT491A
Document number: DS33092 Rev. 4 - 2
2 of 7
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491A
Thermal Characteristics and Derating Information
1
0.6
Max Power Dissipation (W)
-I
C
Collector Current (A)
V
CE(sat)
Limit
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
100m
DC
1s
100ms
10ms
15 x 15mm FR4
1oz Copper
1ms
100µs
10m
1m
1
10
100
-V
CE
Collector-Emitter Voltage (V)
Temperature (°C)
Safe Operating Area
240
200
160
120
80
40
0
100µ
1m
10m 100m
D=0.2
Single Pulse
D=0.05
D=0.1
D=0.5
Derating Curve
15 x 15mm FR4 1oz Copper
Thermal Resistance (°C/W)
Max Power Dissipation (W)
15 x 15mm FR4 1oz Copper
100
10
1
1
10
100
1k
0.1
100µ
1m
10m 100m
1
10
100
1k
Pulse Width (s)
Pulse Width (s)
Transient Thermal Impedance
Pulse Power Dissipation
FMMT491A
Document number: DS33092 Rev. 4 - 2
3 of 7
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491A
Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic
Collector-Base Breakdown Voltage
Collector-Emitter Breakdown Voltage (Note 9)
Emitter-Base Breakdown Voltage
Collector Cutoff Current
Emitter Cutoff Current
Collector Emitter Cutoff Current
Symbol
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
I
CES
h
FE
Min
40
40
7
—
—
—
300
300
200
35
—
—
—
—
—
150
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max
—
—
—
100
100
100
—
900
—
—
0.3
0.5
1.0
1.1
10
—
Unit
V
V
V
nA
nA
nA
Test Condition
I
C
= 100µA
I
C
= 10mA
I
E
= 100µA
V
CB
= 30V, V
CES
= 30V
V
EB
= 5V
V
CE
= 30V, V
CES
= 30V
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
Static Forward Current Transfer Ratio (Note 9)
—
Collector-Emitter Saturation Voltage (Note 9)
Base-Emitter Turn-On Voltage(Note 9)
Base-Emitter Saturation Voltage(Note 9)
Output Capacitance
Transition Frequency
Notes:
V
CE(sat)
V
BE(on)
V
BE(sat)
C
obo
f
T
V
V
V
pF
MHz
9. Measured under pulsed conditions. Pulse width
≤
300µs. Duty cycle
≤
2%.
FMMT491A
Document number: DS33092 Rev. 4 - 2
4 of 7
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
FMMT491A
Typical Electrical Characteristics
(@T
A
= +25°C, unless otherwise specified.)
FMMT491A
Document number: DS33092 Rev. 4 - 2
5 of 7
www.diodes.com
October 2012
© Diodes Incorporated
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