Diodes FMMT491 User Manual

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Diodes Incorporated

Feature

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• 500mW Power Dissipation

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• 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

> 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

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SOT23

Top View Device Symbol

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FMMT491

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)

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Top View

Pin-Out

Ordering Information (Note 4)

Part Number Compliance Marking Reel size (inches) Tape width (mm) Quantity per reel

FMMT491TA AEC-Q101 491 7 8 3,000
FMMT491TC AEC-Q101 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. For packaging details, go to our website at http://www.diodes.com/products/packages.html.

Marking Information

491

491 = Product Type Marking Code

FMMT491

Document number: DS33091 Rev. 7 - 2

1 of 7

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March 2014

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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 5)

Thermal Resistance, Junction to Ambient (Note 5)

Thermal Resistance, Junction to Lead (Note 6)

Operating and Storage Temperature Range

ESD Ratings (Note 7)

= +25°C, unless otherwise specified.)

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V

CBO

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CEO

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EBO

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C

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CM

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P

D

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JA

θ

R

JL

θ

T

J, TSTG

FMMT491

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: 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. 7 - 2

2 of 7

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March 2014

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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

FMMT491

10

1

0.1
100µ 1m 10m 100m 1 10 100 1k

Max Power Dissipation (W)

Pulse Width (s)

Pulse Power Dissipation

FMMT491

Document number: DS33091 Rev. 7 - 2

3 of 7

www.diodes.com

March 2014

© Diodes Incorporated