Fairchild ZTX749A service manual
ZTX749A
PNP Low Saturation Transistor
• This device are designed with high current gain and low saturation
voltage with collector currents up to 2A continuous.
ZTX749A
Absolute Maximum Ratings
TA=25°C unless otherwise noted
C
B
E
TO-226
Symbol Parameter Value Units
V
CEO
V
CBO
V
EBO
I
C
T
, T
J
STG
* These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
NOTES:
1. These ratings are based on a maximum junction temperature of 150°C.
2. These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Electrical Characteristics
Collector-Emitter Voltage -35 V
Collector-Base Voltage -45 V
Emitter-Base Voltage -5 V
Collector Current - Continuous -2 A
Operating and Storage Junction Temperature Range -55 ~ +150 °C
TA=25°C unless otherwise noted
Symbol Parameter Test Condition Min. Max. Units
Off Characteristics
BV
BV
BV
I
CBO
I
EBO
CEO
CBO
EBO
Collector-Emitter Breakdown Voltage IC = -10mA -35 V
Collector-Base Breakdown Voltage IC = -100µA-45V
Emitter-Base Breakdown Voltage IE = -100µA-5V
Collector Cutoff Current VCB = -30V
= -30V, TA = 100°C
V
CB
-100
-10
Emitter Cutoff Current VEB = -4V -100 nA
On Characteristics*
h
FE
(sat) Collector-Emitter Saturation Voltage IC = -1A, IB = -100mA
V
CE
V
(sat) Base-Emitter Saturation Voltage IC = -1A, IB = -100mA -1.25 V
BE
V
(on) Base-Emitter On Voltage IC = -1A, VCE = -2V -1 V
BE
DC Current Gain IC = -50mA, VCE = -2V
= -1A, VCE = -2V
I
C
I
= -2A, VCE = -2V
C
= -6A, VCE = -2V
I
C
= -2A, IB = -200mA
I
C
70
100
75
15
300
-300
-500
Small-Signal Characteristics
C
obo
f
T
Output Capacitance VCB = -10V, IE = 0, f = 1MHz 100
Transition Frequency IC = -100mA, VCE = -5V
100
f = 100MHz
* Pulse Test: Pulse Width ≤ 300µs, Duty Cycle ≤ 2%
nA
µA
mV
P
F
Thermal Characteristics
TA=25°C unless otherwise noted
Symbol Parameter Max. Units
P
D
R
θJA
©2003 Fairchild Semiconductor Corporation Rev. C, August 2003
Total Device Dissipation 1 W
Thermal Resistance, Junction to Ambient 125 °C/W
Package Dimensions
ZTX749A
TO-226
S7.87-7.37;
S15.61-14.47;
S0.51-0.36;
S0.76-
0.36;
S4.70-4.32;
S4.45-3.81;
1
S1.40-1.14;
S1.40-1.14;
32
5" TYP
S1.65-1.27;
0.51
S1.52-1.02;
2" TYP
2" TYP
S0.48-0.30;
99 95
PIN
1EE
2BC
3CB
TO-226AE (95,99)
S7.73-7.10;
S2.41-2.13;
For leadformed option ordering,
refer to Tape & Reel data information.
Dimensions in Millimeters
©2003 Fairchild Semiconductor Corporation Rev. C, August 2003
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