Diodes MMSTA56 User Manual

Mmsta55/mmsta56, Features, Mechanical data

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MMSTA55/MMSTA56

PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR

Features

Epitaxial Planar Die Construction

Complementary NPN Type Available
(MMSTA05/MMSTA06)

Ideal for Low Power Amplification and Switching

Ultra-Small Surface Mount Package

Lead Free/RoHS Compliant (Note 2)

"Green" Device (Note 3 and 4)

Mechanical Data

Case: SOT-323

Case Material: Molded Plastic, "Green" Molding
Compound, Note 4. UL Flammability Classification
Rating 94V-0

Moisture Sensitivity: Level 1 per J-STD-020C

Terminal Connections: See Diagram

Terminals: Solderable per MIL-STD-202, Method 208

Lead Free Plating (Matte Tin Finish annealed over
Alloy 42 leadframe).

MMSTA55 Marking K2H, K2G (See Page 3)

MMSTA56 Marking K2G (See Page 3)

Ordering & Date Code Information: See Page 3

Weight: 0.006 grams (approximate)


SOT-323

Dim

Min

Max

A

0.25

0.40

B

1.15

1.35

C

2.00

2.20

D

0.65 Nominal

E

0.30

0.40

G

1.20

1.40

H

1.80

2.20

J

0.0

0.10

K

0.90

1.00

L

0.25

0.40

M

0.10

0.18

α

0

°

8

°

All Dimensions in mm

E

B

C

A

M

J

L

E

D

B C

H

K

G

B

E

C

Maximum Ratings

@T

A

= 25°C unless otherwise specified

Characteristic

Symbol

MMSTA55

MMSTA56

Unit

Collector-Base Voltage

V

CBO

-60

-80

V

Collector-Emitter Voltage

V

CEO

-60

-80

V

Emitter-Base Voltage

V

EBO

-4.0

V

Collector Current - Continuous (Note 1)

I

C

-500

mA

Power Dissipation (Note 1)

P

d

200

mW

Thermal Resistance, Junction to Ambient (Note 1)

R

θJA

625

°C/W

Operating and Storage Temperature Range

T

j

, T

STG

-55 to +150

°C

Notes:

1. Device mounted on FR-4 PCB, 1 inch x 0.85 inch x 0.062 inch; pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which
can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. No purposefully added lead.
3. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
4. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to Date
Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.






















DS30167 Rev. 10 - 2

1 of 3

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MMSTA55/MMSTA56

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