PS2503-1, -2, -4, PS2503L-1, -2, -4
400
CTR - Current Transfer Ratio - %
CURRENT TRANSFER RATIO (CTR) vs.
FORWARD CURRENT
1.4
CTR - Normalized Output current
NORMALIZED OUTPUT CURRENT vs.
AMBIENT TEMPERATURE
Normalized to 1.0
at T
A
= 25 °C
I
F
= 1 mA, V
CE
= 5 V
1.2
1.0
0.8
0.6
0.4
0.2
300
200
100
0
0.3 0.5
0
1
5
10
50
100
I
F
- Forward Current - mA
30
0
25
50
75
100
T
A
- Ambient Temperature - ˚C
SWITCHING TIME vs. LOAD RESISTANCE
50
500
SWITCHING TIME vs. AMBIENT TEMPERATURE
Sample CTR = 290 %
V
CC
= 5 V
I
F
= 1 mA
R
L
= 10 kW
t
f
t
s
t
r
10
5
t
d
10
t - Switching Time -
µ
s
t
r
100
t
d
t
f
I
F
= 1 mA, V
CC
= 5 V
Sample : CTR 209 %
at I
F
= 1 mA
I
F
V
CC
t
s
50
Ω
V
O
R
L
50 k 100 k
1
–50
–25
0
25
t - Switching Time -
µ
s
5
50
1
0.5
0.1
100
500 1 k
5 k 10 k
50
75
100
R
L
- Load Resistance -
Ω
T
A
- Ambient Temperature - ˚C
FREQUENCY
A
V
- Relative Voltage Gain - dB
LONG TERM CTR DEGRADATION
V
CC
= 5 V
Sample
CTR = 209 %
1.2
TYP.
1.0
CTR - Normalized
0
3.0
6.0
9.0
12.0
15.0
100
1k
10 k
5.6 k
0.8
0.6
0.4
0.2
0
10
2
1k
100
I
F
= 5 mA
T
A
= 25 °C
I
F
= 5 mA
T
A
= 60 °C
100 k
1M
f - Frequency - Hz
10
3
Time - Hr
10
4
10
5
4
NEC [ NEC ]
