Diodes FMMT459Q User Manual
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Description
This Bipolar Junction Transistor (BJT) has been designed to meet the
stringent requirements of Automotive Applications.
Feature
BV
BV
I
I
625mW Power Dissipation
Low Saturation Voltage <-90mV @ 50mA
Excellent h
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)
> 500V
CEV
> 6V reverse blocking
ECV
= 150mA high Continuous Collector Current
C
Up to 500mA Peak Pulse Current
CM
Characteristics Up To 120mA
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SOT23
Top View Device Symbol
B
FMMT459Q
500V NPN HIGH VOLTAGE 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)
Applications
Automotive
Off-line switching applications
RCD circuits
PFC disable switch in PSU
Emergency lighting
Piezo actuators
Telecom protected line switching
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Top View
Pin-Out
Ordering Information (Notes 4 & 5)
Part Number Compliance Marking Reel size (inches) Tape width (mm) Quantity per reel
FMMT459QTA Automotive 459 7 8 3,000
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
FMMT459Q
Document number: DS37019 Rev. 1 - 2
459
459 = Product Type Marking Code
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Absolute Maximum Ratings (@T
Characteristic Symbol Value Unit
Collector-Base Voltage
Collector-Emitter Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Emitter-Collector Voltage
Continuous Collector Current
Peak Pulse Current
Base Current
Thermal Characteristics (@T
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
Power Dissipation (Note 7)
Thermal Resistance, Junction to Ambient (Note 6)
Thermal Resistance, Junction to Ambient (Note 7)
Thermal Resistance, Junction to Leads (Note 8)
Operating and Storage Temperature Range
= +25°C, unless otherwise specified.)
A
= +25°C, unless otherwise specified.)
A
V
CBO
V
CEV
V
CEO
V
EBO
V
ECV
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C
I
CM
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P
D
P
D
R
θJA
R
θJA
R
θJL
T
J, TSTG
FMMT459Q
500 V
500 V
450 V
7 V
6 V
150 mA
500 mA
200 mA
625 mW
806 mW
200
155
194
-55 to +150
C/W
C/W
C/W
C
ESD Ratings (Note 9)
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 25mm x 25mm 1oz copper that is on a single-sided FR4 PCB; device is measured under still air
conditions whilst operating in a steady-state.
7. Same as note 6, except the device is measured at t ≤ 5 sec.
8. Thermal resistance from junction to solder-point (at the end of the collector lead).
9. Refer to JEDEC specification JESD22-A114 and JESD22-A115.
Characteristic Symbol Value Unit JEDEC Class
FMMT459Q
Document number: DS37019 Rev. 1 - 2
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Thermal Characteristics and Derating Information
1
100m
DC
1s
10m
Collector Current (A)
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1m
100m 1 10 100
100ms
Single Pulse T
10ms
=25°C
amb
1ms
100µs
VCE Collector-Emitter Voltage (V)
Safe Operating Area
200
150
FMMT459Q
0.7
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)
Temperature (°C)
Derating Curve
100
Single Pulse
T
=25°C
amb
D=0.5
100
D=0.2
50
D=0.1
0
100µ 1m 10m 100m 1 10 100 1k
Thermal Resistance (°C/W)
Single Pulse
D=0.05
Pulse Width (s)
Transient Thermal Impedance
10
1
Maximum Power (W)
100µ 1m 10m 100m 1 10 100 1k
Pulse Width (s)
Pulse Power Dissipation
FMMT459Q
Document number: DS37019 Rev. 1 - 2
3 of 7
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March 2014
© Diodes Incorporated
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