DS30400 Rev. 6 - 2
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DDTB (LO-R1) U
© Diodes Incorporated
DDTB (LO-R1) UDDTB (LO-R1) U
PNP PRE-BIASED 500 mA SURFACE MOUNT TRANSISTOR
Features
Epitaxial Planar Die Construction
Complementary NPN Types Available (DDTD)
Built-In Biasing Resistors
Lead Free/RoHS Compliant (Note 2)
"Green" Device (Note 3 & 4)
Mechanical Data
NEW ODOD P PR UCT T R UC
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
Terminals: Solderable per MIL-STD-202, Method 208
Terminal Connections: See Diagram
Lead Free Plating (Matte Tin Finish annealed over Alloy
42 leadframe)
Marking Information: See Table Below & Page 3
Ordering Information: See Page 3
Weight: 0.006 grams (approximate)
P/N R1 (NOM) R2 (NOM) Type Code
DDTB122LU
DDTB142JU
DDTB122TU
DDTB142TU
0.22KΩ
0.47KΩ
0.22KΩ
0.47KΩ
10KΩ
10KΩ
OPEN
OPEN
P75
P76
P77
P78
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
A
M
JL
ED
C
B
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Supply Voltage, (3) to (2) VCC -50 V
Input Voltage, (1) to (2) DDTB122LU
DDTB142JU VIN +5 to -6
+5 to -6 V
Input Voltage, (2) to (1) DDTB122TU
DDTB142TU VEBO (MAX) -5 V
Output Current All IC -500 mA
Power Dissipation (Note 1) Pd 200 mW
Thermal Resistance, Junction to Ambient Air (Note 1) RθJA 625 °C/W
Operating and Storage Temperature Range Tj, TSTG -55 to +150 °C
Notes: 1. Mounted on FR4 PC Board with recommended pad layout 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.
Schematic and Pin Configuration
R1
OUT
B
C
E
R2
3
21
IN GND(+)
H
K
G
DS30400 Rev. 6 - 2
2 of 3
www.diodes.com
DDTB (LO-R1) U
© Diodes Incorporated
NEW PRODUCT
Electrical Characteristics @TA = 25°C unless otherwise specified R1, R2 Types
Characteristic Symbol Min Typ Max Unit Test Condition
DDTB122LU
DDTB142JU Vl(off) -0.3
-0.3 V VCC = -5V, IO = -100μA
Input Voltage
DDTB122LU
DDTB142JU Vl(on) -2.0
-2.0 V VO = -0.3V, IO = -20mA
VO = -0.3V, IO = -20mA
Output Voltage VO(on) -0.3V V IO/Il = -50mA/-2.5mA
Input Current DDTB122LU
DDTB142JU Il -28
-13 mA VI = -5V
Output Current IO(off) -0.5 μA VCC = -50V, VI = 0V
DC Current Gain DDTB122LU
DDTB142JU Gl 56
56 VO = -5V, IO = -50mA
Gain-Bandwidth Product* fT 200 MHz VCE = -10V, IE = -5mA, f = 100MHz
* Transistor - F o r Reference Only
Electrical Characteristics @TA = 25°C unless otherwise specified R1 – Only Types
Characteristic Symbol Min Typ Max Unit Test Condition
Collector-Base Breakdown Voltage BVCBO -50 V IC = -50μA
Collector-Emitter Breakdown Voltage BVCEO -40 V IC = -1mA
Emitter-Base Breakdown Voltage DDTB122TU
DDTB142TU BVEBO -5 V IE = -50μA
IE = -50μA
Collector Cutoff Current ICBO -0.5 μA VCB = -50V
Emitter Cutoff Current DDTB122TU
DDTB142TU IEBO
-0.5
-0.5 μA VEB = -4V
Collector-Emitter Saturation Voltage VCE(sat) -0.3 V IC = -50mA, IB = -2.5mA
DC Current Transfer Ratio DDTB122TU
DDTB142TU hFE 100
100 250
250 600
600 IC = -5mA, VCE = -5V
Gain-Bandwidth Product* fT 200 MHz VCE = -10V, IE = 5mA, f = 100MHz
* Transistor - F o r Reference Only
-50 050 100 150
250
200
150
50
100
0
T , AMBIENT TEMPERA TURE ( C)
Fig. 1 Power Derating Curve
A
°
I
O
DS30400 Rev. 6 - 2
3 of 3
www.diodes.com
DDTB (LO-R1) U
© Diodes Incorporated
NEW PRODUCT
P
,
P
O
WE
R
DISSI
P
A
T
N (mW)
d
Ordering Information (Note 4 & 5)
Device Packaging Shipping
DDTB122LU-7-F SOT-323 3000/Tape & Reel
DDTB142JU-7-F SOT-323 3000/Tape & Reel
DDTB122TU-7-F SOT-323 3000/Tape & Reel
DDTB142TU-7-F SOT-323 3000/Tape & Reel
Notes: 5. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
XXX
YM
XXX = Product Type Marking Code (See Page 1)
YM = Date Code Marking
Y = Year ex: T = 2006
M = Month ex: 9 = September
Date Code Key
Year 2006 2007 2008 2009 2010 2011 2012
Code T U V W X Y Z
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1 2 3 4 5 6 7 8 9 O N D
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated does not assume an y liability arising out of the application or use of any product
described herein; neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website,
harmless against all damages. LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.