LESHAN RADIO COMPANY, LTD.
M101/6
1
3
2
General Purpose Transistors
PNP Silicon
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
CollectorEmitter Voltage
V
CEO
32
Vdc
CollectorBase Voltage
V
CBO
32
Vdc
EmitterBase Voltage
V
EBO
5.0
Vdc
Collector Current -- Continuous
I
C
100
mAdc
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation FR 5 Board, (1)
P
D
225
mW
T
A
= 25C
Derate above 25C
1.8
mW/C
Thermal Resistance, Junction to Ambient
R
JA
556
C/W
Total Device Dissipation
P
D
300
mW
Alumina Substrate, (2) T
A
= 25C
Derate above 25C
2.4
mW/C
Thermal Resistance, Junction to Ambient
R
JA
417
C/W
Junction and Storage Temperature
T
J
, T
stg
55 to +150
C
DEVICE MARKING
BCW61BLT1 = BB, BCW61CLT1 = BC, BCW61DLT1 = BD
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted.)
Characteristic
Symbol
Min
Max
Unit
OFF CHARACTERISTICS
CollectorEmitter Breakdown Voltage
(I
C
= 2.0 mAdc, I
B
= 0 )
V
(BR)CEO
32
--
Vdc
EmitterBase Breakdown Voltage
(I
E
= 1.0
Adc, I
C
= 0)
V
(BR)EBO
5.0
--
Vdc
Collector Cutoff Current
I
CES
(V
CE
= 32 Vdc, )
--
20
nAdc
(V
CE
= 32 Vdc, T
A
= 150C)
--
20
Adc
1. FR 5 = 1.0 x 0.75 x 0.062 in.
2. Alumina = 0.4 x 0.3 x 0.024 in. 99.5% alumina.
BCW61BLT1
BCW61CLT1
BCW61DLT1
2
EMITTER
3
COLLECTOR
1
BASE
CASE 31808, STYLE 6
SOT23 (TO236AB)
LESHAN RADIO COMPANY, LTD.
M102/6
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise noted) (Continued)
Characteristic
Symbol
Min
Max
Unit
ON CHARACTERISTICS
DC Current Gain
h
FE
--
( I
C
= 10
Adc, V
CE
= 5.0 Vdc )
BCW61B
30
--
BCW61C
40
--
BCW61D
100
--
( I
C
= 2.0 mAdc, V
CE
= 5.0 Vdc )
h
FE
--
BCW61B
140
310
BCW61C
250
460
BCW61D
380
630
( I
C
= 50 mAdc, V
CE
= 1.0 Vdc )
h
FE
--
BCW61B
80
--
BCW61C
100
--
BCW61D
100
--
AC Current Gain
h
FE
--
( V
CE
= 5.0Vdc, I
C
= 2.0 mAdc,
BCW61B
175
350
f= 1.0 kHz )
BCW61C
250
500
BCW61D
350
700
CollectorEmitter Saturation Voltage
V
CE(sat)
Vdc
( I
C
= 50 mAdc, I
B
= 1.25 mAdc )
--
0.55
( I
C
= 10 mAdc, I
B
= 0.25 mAdc )
--
0.25
BaseEmitter Saturation Voltage
V
BE(sat)
Vdc
( I
C
= 50 mAdc, I
B
= 1.25 mAdc )
0.68
1.05
( I
C
= 10 mAdc, I
B
= 0.25 mAdc )
0.6
0.85
BaseEmitter On Voltage
V
BE(on)
Vdc
( I
C
= 2.0 mAdc, V
CE
= 5.0 Vdc )
0.6
0.75
SM
SMALLSIGNAL CHARACTERISTICS
Output Capacitance
C
obo
--
6.0
pF
(V
CE
= 10 Vdc, I
C
= 0, f = 1.0 MHz)
Noise Figure
NF
--
6.0
dB
(V
CE
= 5.0 Vdc, I
C
= 0.2 mAdc, R
S
= 2.0 k
, f = 1.0 kHz, BW = 200 Hz)
SWITCHING CHARACTERISTICS
TurnOn Time
t
on
--
150
ns
(I
C
= 10 mAdc, I
B1
= 1.0 mAdc)
TurnOff Time
t
off
--
800
ns
(I
B2
= 1.0 mAdc, V
BB
= 3.6 Vdc, R
1
= R
2
= 5.0 k
, R
L
= 990
)
BCW61BLT1 BCW61CLT1 BCW61DLT1
LESHAN RADIO COMPANY, LTD.
M103/6
Noise Figure is Defined as:
NF = 20 log
10
(
)
1/ 2
e
n
= Noise Voltage of the Transistor referred to the input. (Figure 3)
I
n
= Noise Current of the Transistor referred to the input. (Figure 4)
K
= Boltzman's Constant (1.38 x 10
23
j/K)
T
= Temperature of the Source Resistance (K)
R
s
= Source Resistance (
)
e
n
2
+4KTR
S
+I
n
2
R
S
2
4KTR
S
TYPICAL NOISE CHARACTERISTICS
(V
CE
= 5.0 Vdc, T
A
= 25C)
f, FREQUENCY (Hz)
Figure 1. Noise Voltage
f, FREQUENCY (Hz)
Figure 2. Noise Current
e
n
, NOISE VOL
T
AGE (nV)
BANDWIDTH = 1.0 Hz
R
S
0
I
C
=10
A
100
A
30
A
300
A
1.0mA
I
n
, NOISE CURRENT (pA)
BANDWIDTH = 1.0 Hz
R
S
I
C
=1.0mA
300
A
100
A
30
A
BANDWIDTH = 1.0 Hz
BANDWIDTH = 1.0 Hz
NOISE FIGURE CONTOURS
(V
CE
= 5.0 Vdc, T
A
= 25C)
R
S
, SOURCE RESIST
ANCE (
)
R
S
, SOURCE RESIST
ANCE (
)
R
S
, SOURCE RESIST
ANCE (
)
10
7.0
5.0
3.0
2.0
1.0
10
20
50
100
200
500
1.0k
2.0k
5.0k
10 k
10
20
50
100
200
500
1.0k
2.0k
5.0k
10 k
1.0
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1
1.0M
500k
200k
100k
50k
20k
10k
5.0k
2.0k
1.0k
500
200
100
1.0M
500k
200k
100k
50k
20k
10k
5.0k
2.0k
1.0k
500
200
100
10
20
30
50
70
100
200
300
500 700 1.0K
10
20
30
50
70
100
200
300
500 700 1.0K
10
20
30
50
70
100
200
300
500 700 1.0K
0.5 dB
2.0 dB
1.0 dB
3.0 dB
5.0dB
0.5 dB
1.0 dB
2.0 dB
3.0 dB
5.0 dB
0.5 dB
1.0 dB
2.0 dB
3.0 dB
5.0 dB
10 Hz to 15.7KHz
10
A
BCW61BLT1 BCW61CLT1 BCW61DLT1
1.0M
500k
200k
100k
50k
20k
10k
5.0k
2.0k
1.0k
500
200
100
I
C
, COLLECTOR CURRENT (
A)
Figure 3. Narrow Band, 100 Hz
I
C
, COLLECTOR CURRENT (
A)
Figure 5. Wideband
I
C
, COLLECTOR CURRENT (
A)
Figure 4. Narrow Band, 1.0 kHz
~
~
~
~
8
LESHAN RADIO COMPANY, LTD.
M104/6
I
B
, BASE CURRENT (mA)
Figure 6. Collector Saturation Region
I
C
, COLLECTOR CURRENT (mA)
Figure 9. Temperature Coefficients
V
CE
, COLLECTOREMITTER VOLTAGE (VOLTS)
Figure 7. Collector Characteristics
I
C
, COLLECTOR CURRENT (mA)
Figure 8. "On" Voltages
I
C
, COLLECT
OR CURRENT (mA)
V
,
VOL
T
AGE (VOL
TS)
V
CE
, COLLECT
OR EMITTER VOL
T
AGE (VOL
TS)
V
, TEMPERA
TURE COEFFICIENTS (mV/C)
VB
for V
BE
VC
for V
CE(sat)
V
BE(on)
@ V
CE
= 1.0 V
V
CE(sat)
@ I
C
/I
B
= 10
V
BE(sat)
@ I
C
/I
B
= 10
T
J
= 25C
I
C
= 1.0 mA
50 mA
100 mA
10 mA
T
A
= 25C
BCW61
T
A
= 25C
PULSE WIDTH =300
s
DUTY CYCLE<2.0%
I
B
= 400
A
50
A
100
A
150
A
200
A
55C to 25C
55C to 25C
25C to 125C
25C to 125C
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
1.6
0.8
0
0.8
1.6
2.4
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
1.0
0.8
0.6
0.4
0.2
0
0.002 0.0050.010.02
0.05 0.1 0.2
0.5 1.0 2.0
5.0
10
20
100
80
60
40
20
0
0
5.0
10
15
20
25
30
35
40
BCW61BLT1 BCW61CLT1 BCW61DLT1
TYPICAL STATIC CHARACTERISTICS
250
A
300
A
350
A
*APPLIES for I
C
/ I
B
< h
FE
/ 2
LESHAN RADIO COMPANY, LTD.
M105/6
TYPICAL DYNAMIC CHARACTERISTICS
C, CAP
ACIT
ANCE (pF)
I
C
, COLLECTOR CURRENT (mA)
Figure 10. TurnOn Time
I
C
, COLLECTOR CURRENT (mA)
Figure 11. TurnOff Time
I
C
, COLLECTOR CURRENT (mA)
Figure 12. CurrentGain -- Bandwidth Product
V
R
, REVERSE VOLTAGE (VOLTS)
Figure 13. Capacitance
t, TIME (ns)
t, TIME (ns)
f
T
, CURRENT GAIN -- BANDWIDTH PRODUCT (MHz)
t
d
@ V
BE(off)
= 0.5 V
t
f
V
CC
= 3.0 V
I
C
/I
B
= 10
I
B1
=I
B2
T
J
= 25C
t
f
t
s
5.0 V
C
ib
C
ob
T
J
= 25C
500
300
200
100
70
50
30
20
10
7.0
5.0
1.0
2.0
3.0
5.0
7.0
10
20
30
50
70
100
1000
700
500
300
200
100
70
50
30
20
10
-1.0
-2.0
-3.0
-5.0 -7.0 -10
-20
-30
-50 -70 -100
500
300
200
100
70
50
0.5
0.7
1.0
2.0
3.0
5.0 7.0
10
20
30
50
10.0
7.0
5.0
3.0
2.0
1.0
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
V
CC
= 3.0 V
I
C
/I
B
= 10
T
J
= 25C
V
CE
=20 V
T
J
= 25C
BCW61BLT1 BCW61CLT1 BCW61DLT1
t, TIME (ms)
Figure 14. Thermal Response
r( t) TRANSIENT THERMAL RESIST
ANCE(NORMALIZED)
D = 0.5
0.02
0.05
0.1
0.2
0.01
SINGLE PULSE
DUTY CYCLE, D = t
1
/ t
2
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t
1
(SEE AN569)
Z
JA(t)
= r(t) R
JA
T
J(pk)
T
A
= P
(pk)
Z
JA(t)
FIGURE 19A
P
(pk)
t
2
t
1
1.0
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.03
0.02
0.01
0.01
0.02
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
500
1.0k
2.0k
5.0k
10k
20k
50k
100k
LESHAN RADIO COMPANY, LTD.
M106/6
T
J
, JUNCTION TEMPERATURE (C)
Figure 15. Typical Collector Leakage Current
V
CC
= 30 V
I
C
, COLLECT
OR CURRENT (nA)
10
4
10
3
10
2
10
1
10
0
10
1
10
2
4
2
0
+20
+40
+60
+80
+100
+120
+140
+160
I
CBO
AND
I
CEX
@ V
BE(off)
= 3.0 V
I
CEO
DESIGN NOTE: USE OF THERMAL RESPONSE DATA
A train of periodical power pulses can be represented by the
model as shown in Figure 15. Using the model and the device
thermal response the normalized effective transient thermal re-
sistance of Figure 14 was calculated for various duty cycles.
To find Z
JA(t)
, multiply the value obtained from Figure 14 by
the steady state value R
JA
.
Example:
The MPS3905 is dissipating 2.0 watts peak under the follow-
ing conditions:
t
1
= 1.0 ms, t
2
= 5.0 ms. (D = 0.2)
Using Figure 14 at a pulse width of 1.0 ms and D = 0.2, the
reading of r(t) is 0.22.
The peak rise in junction temperature is therefore
T = r(t) x P
(pk)
x R
JA
= 0.22 x 2.0 x 200 = 88C.
For more information, see AN569.
BCW61BLT1 BCW61CLT1 BCW61DLT1
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