Features
MMBTA55 / MMBTA56
PNP SMALL SIGNAL SURFACE MOUNT TRANSISTOR
· Epitaxial Planar Die Construction
· Complementary NPN Types Available
(MMBTA05 / MMBTA06)
· Ideal for Medium Power Amplification and
Switching
Mechanical Data
· Case: SOT-23, Molded Plastic
· Case material - UL Flammability Rating
Classification 94V-0
· Moisture sensitivity: Level 1 per J-STD-020A
· Terminals: Solderable per MIL-STD-202,
Method 208
· Terminal Connections: See Diagram
· MMBTA55 Marking (See Page 2): K2H
· MMBTA56 Marking (See Page 2): K2G
· Ordering & Date Code Information: See Page 2
· Weight: 0.008 grams (approx.)
Maximum Ratings
Characteristic Symbol MMBTA55 MMBTA56 Unit
Collector-Base Voltage
Collector-Emitter Voltage
Emitter-Base Voltage
Collector Current - Continuous (Note 1)
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient (Note 1)
Operating and Storage and Temperature Range
@ TA= 25°C unless otherwise specified
B
E
V
V
V
R
Tj,T
TOP VIEW
B
CBO
CEO
EBO
I
C
P
d
qJA
STG
SOT-23
A
C
B
C
E
D
G
H
K
J
L
C
E
M
Dim Min Max
A
0.37 0.51
B
1.20 1.40
C
2.30 2.50
D
0.89 1.03
E
0.45 0.60
G
1.78 2.05
H
2.80 3.00
J
0.013 0.10
K
0.903 1.10
L
0.45 0.61
M
0.085 0.180
a
0° 8°
All Dimensions in mm
-60 -80 V
-60 -80 V
-4.0 V
-500 mA
300
mW
417 °C/W
-55 to +150 °C
Electrical Characteristics
@ TA = 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Condition
OFF CHARACTERISTICS (Note 2)
Collector-Base Breakdown Voltage MMBTA55
MMBTA56
Collector-Emitter Breakdown Voltage MMBTA55
MMBTA56
Emitter-Base Breakdown Voltage
Collector Cutoff Current MMBTA55
MMBTA56
Collector Cutoff Current MMBTA55
MMBTA56
V
(BR)CBO
V
(BR)CEO
V
(BR)EBO
I
CBO
I
CEX
-60
-80
-60
-80
¾ V
¾ V
-4.0 ¾ V
¾ -100 nA
¾ -100 nA
IC= -100mA, IE = 0
IC= -1.0mA, IB = 0
= -100mA, IC = 0
I
E
= -60V, IE= 0
V
CB
VCB = -80V, IE= 0
VCE= -60V, IBO = 0V
VCE= -80V, IBO = 0V
ON CHARACTERISTICS (Note 2)
= -10mA, VCE = -1.0V
I
DC Current Gain
Collector-Emitter Saturation Voltage
Base- Emitter Saturation Voltage
h
V
CE(SAT)
V
BE(SAT)
FE
100 ¾¾
¾ -0.25 V
¾ -1.2 V
C
I
= -100mA, VCE= -1.0V
C
IC= -100mA, IB = -10mA
IC = -100mA, VCE = -1.0V
SMALL SIGNAL CHARACTERISTICS
Current Gain-Bandwidth Product
f
T
50 ¾ MHz
VCE = -1.0V, IC = -100mA,
f = 100MHz
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. Short duration test pulse used to minimize self-heating effect.
DS30054 Rev. 4 - 2 1 of 2 MMBTA55 / MMBTA56
www.diodes.com
Ordering Information
(Note 3)
Device
MMBTA55-7
MMBTA56-7
Notes: 3. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Packaging Shipping
SOT-23 3000/Tape & Reel
Marking Information
K2x = Product Type Marking Code, ex: K2H = MMBTA55
YM = Date Code Marking
Y = Year ex: N = 2002
YM
M = Month ex: 9 = September
2005 2006 2007 2008 2009
ST U VW
Aug Sep Oct Nov Dec
89 O ND
Date Code Key
Year 1998 1999 2000 2001 2002 2003 2004
Code
Month Jan Feb March Apr May Jun Jul
Code
K2x
JKLMNPR
1234567
DS30054 Rev. 4 - 2 2 of 2 MMBTA55 / MMBTA56
www.diodes.com