Maximum ratings – q1 (npn transistor), Maximum ratings – q2 (pnp transistor), Thermal characteristics – Diodes ZXTC2045E6 User Manual
Page 2

ZXTC2045E6
Document Number: DS33645 Rev: 2 - 2
2 of 6
November 2012
© Diodes Incorporated
ZXTC2045E6
ADVAN
CE I
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RM
ATI
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A Product Line of
Diodes Incorporated
 
 
 
 
 
 
 
Maximum Ratings – Q1 (NPN Transistor)
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value
Unit
Collector-Base Voltage
V
CBO
40 V
Collector-Emitter Voltage
V
CEV
40 V
Collector-Emitter Voltage
V
CEO
30 V
Emitter-Base Voltage
V
EBO
7 V
Continuous Collector Current
I
C
1.5 A
Peak Pulsed Collector Current
I
CM
5 A
Base Current
I
B
1 A
 
 
 
Maximum Ratings – Q2 (PNP Transistor)
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value
Unit
Collector-Base Voltage
V
CBO
-40 V
Collector-Emitter Voltage
V
CEV
-40 V
Collector-Emitter Voltage
V
CEO
-30 V
Emitter-Base Voltage
V
EBO
-7 V
Continuous Collector Current
I
C
-1.5 A
Peak Pulsed Collector Current
I
CM
-5 A
Base Current
I
B
-1 A
 
 
 
Thermal Characteristics
(@T
A
= +25°C, unless otherwise specified.)
Characteristic Symbol
Value
Unit
Power Dissipation 
Linear Derating Factor 
(Notes 6 & 10)
P
D
0.7 
5.6 
W
mW/
°C
(Notes 7 & 10)
0.9 
7.2 
(Notes 7 & 11)
1.1 
8.8 
(Notes 8 & 10)
1.1 
8.8 
(Notes 9 & 10)
1.7
13.6
Thermal Resistance, Junction to Ambient
(Notes 6 & 10)
R
θJA
179
°C/W
(Notes 7 & 10)
139
(Notes 7 & 11)
113
(Notes 8 & 10)
113
(Notes 9 & 10)
73
Thermal Resistance, Junction to Lead
(Note 12)
R
θJL
95.50
Operating and Storage Temperature Range
T
J
, T
STG
-55 to +150
°C
Notes:
6. For a device surface mounted on 15mm x 15mm FR4 PCB with high coverage of single sided 1oz copper, in still air conditions; the device is measured 
 when operating in a steady-state condition. 
7. Same as note (6), except the device is surface mounted on 25mm x 25mm 1oz copper. 
8. Same as note (6), except the device is surface mounted on 50mm x 50mm 2oz copper. 
9. Same as note (8), except the device is measured at t < 5 seconds. 
10. For device with one active die, both collectors attached to a common heatsink. 
11. For device with two active dice running at equal power, split heatsink 50% to each collector. 
12. Thermal resistance from junction to solder-point (at the end of the collector lead). 
 
 
 
