DS30400 Rev. 2 - 2 1 of 3 DDTB (LO-R1) U
www.diodes.com ã Diodes Incorporated
DDTB (LO-R1) U
PNP PRE-BIASED 500 mA SOT-323
SURFACE MOUNT TRANSISTOR
·Epitaxial Planar Die Construction
·Complementary NPN Types Available
(DDTD)
·Built-In Biasing Resistors
·Lead Free Product
Features
Maximum Ratings @ TA= 25°C unless otherwise specified
A
M
JL
ED
BC
H
K
G
IN GND
OUT
3
21
Mechanical Data
·Case: SOT-323, Molded Plastic
·Case material - UL Flammability Rating 94V-0
·Moisture sensitivity: Level 1 per J-STD-020A
·Terminals: Finish - Matte Tin (Note 1)
Solderable per MIL-STD-202, Method 208
·Terminal Connections: See Diagram
·Marking: Date Code and Marking Code
(See Diagrams & Page 2)
·Weight: 0.006 grams (approx.)
·Ordering Information (See Page 2) (2) IN
R1
R2
GND (1)
OUT (3)
P/N R1 (NOM) R2 (NOM) MARKING
DDTB122LU
DDTB142JU
DDTB122TU
DDTB142TU
0.22KW
0.47KW
0.22KW
0.47KW
10KW
10KW
OPEN
OPEN
P75
P76
P77
P78
Characteristic Symbol Value Unit
Supply Voltage, (3) to (1) VCC -50 V
Input Voltage, (2) to (1) DDTB122LU
DDTB142JU VIN +5 to -6
+5 to -6 V
Input Voltage, (1) to (2) DDTB122TU
DDTB142TU VEBO (MAX) -5 V
Output Current All IC-500 mA
Power Dissipation (Note 2) Pd200 mW
Thermal Resistance, Junction to Ambient Air (Note 2) RqJA 625 °C/W
Operating and Storage and Temperature Range Tj,T
STG -55 to +150 °C
SOT-323
Dim Min Max
A0.25 0.40
B1.15 1.35
C2.00 2.20
D0.65 Nominal
E0.30 0.40
G1.20 1.40
H1.80 2.20
J0.0 0.10
K0.90 1.00
L0.25 0.40
M0.10 0.18
a0°8°
All Dimensions in mm
Note: 1. If lead-bearing terminal plating is required, please contact your Diodes Inc. sales representative for availability and minimum
order details.
2. Mounted on FR4 PC Board with recommended pad layout at http://www.diodes.com/datasheets/ap02001.pdf.
TCUDORPWEN
SPICE MODELS: DDTB122LU DDTB142JU DDTB122TU DDTB142TU
DS30400 Rev. 2 - 2 2 of 3 DDTB (LO-R1) U
www.diodes.com
Characteristic Symbol Min Typ Max Unit Test Condition
Input Voltage
DDTB122LU
DDTB142JU Vl(off) -0.3
-0.3 ¾¾VVCC = -5V, IO = -100mA
DDTB122LU
DDTB142JU Vl(on) ¾¾
-2.0
-2.0 VVO = -0.3V, IO = -20mA
VO = -0.3V, IO = -20mA
Output Voltage VO(on) ¾¾-0.3V V IO/Il = -50mA/-2.5mA
Input Current DDTB122LU
DDTB142JU Il¾¾
-28
-13 mA VI = -5V
Output Current IO(off) ¾¾-0.5 mAVCC = -50V, VI = 0V
DC Current Gain DDTB122LU
DDTB142JU Gl56
56 ¾¾¾
VO = -5V, IO = -50mA
Gain-Bandwidth Product* fT¾200 ¾MHz VCE = -10V, IE = -5mA,
f = 100MHz
Electrical Characteristics R1, R2 Types
@ TA= 25°C unless otherwise specified
* Transistor - For Reference Only
Characteristic Symbol Min Typ Max Unit Test Condition
Collector-Base Breakdown Voltage BVCBO -50 ¾¾VIC = -50mA
Collector-Emitter Breakdown Voltage BVCEO -40 ¾¾VIC = -1mA
Emitter-Base Breakdown Voltage DDTB122TU
DDTB142TU BVEBO -5 ¾¾VIE = -50mA
IE = -50mA
Collector Cutoff Current ICBO ¾¾-0.5 mAVCB = -50V
Emitter Cutoff Current DDTB122TU
DDTB142TU IEBO ¾
¾¾-0.5
-0.5 mAVEB = -4V
Collector-Emitter Saturation Voltage VCE(sat) ¾¾-0.3 V IC = -50mA, IB = -2.5mA
DC Current Transfer Ratio DDTB122TU
DDTB142TU hFE 100
100
250
250
600
600 ¾IC = -5mA, VCE = -5V
Gain-Bandwidth Product* fT¾200 ¾MHz VCE = -10V, IE = 5mA,
f = 100MHz
Electrical Characteristics R1-Only Types
@ TA= 25°C unless otherwise specified
* Transistor - For Reference Only
XXX = Product Type Marking Code
See Sheet 1 Diagrams
YM = Date Code Marking
Y = Year ex: P = 2003
M = Month ex: 9 = September
XXX
YM
Marking Information
Device Packaging Shipping
DDTB122LU-7 SOT-323 3000/Tape & Reel
DDTB142JU-7 SOT-323 3000/Tape & Reel
DDTB122TU-7 SOT-323 3000/Tape & Reel
DDTB142TU-7 SOT-323 3000/Tape & Reel
Ordering Information (Note 3)
Month Jan Feb March Apr May Jun Jul Aug Sep Oct Nov Dec
Code 1234567
89 OND
Year 2002 2003 2004 2005 2006 2007 2008 2009
Code NPRST
UVW
Date Code Key
Notes: 1. If lead-bearing terminal plating is required, please contact your Diodes Inc. sales representative for availability and minimum
order details.
3. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
TCUDORPWEN
DS30400 Rev. 2 - 2 3 of 3 DDTB (LO-R1) U
www.diodes.com
-50 0 50 100 150
2
5
0
200
150
50
100
0
T , AMBIENT TEMPERATURE (°C)
A
Fi
g
. 1 Power Deratin
g
Curve
P , POWER DISSIPATION (mW)
d
TCUDORPWEN