GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25
4N37
4N26
H11A1
4N27
H11A2
4N28
H11A3
4N35
H11A4
4N36
H11A5
Fig. 7 CTR vs. RBE (Unsaturated)
(Black Package)
1.0
1.0
Fig. 8 CTR vs. RBE (Unsaturated)
(White Package)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
0.9
0.8
I
F
= 10 mA
0.7
I
F
= 5 mA
0.6
0.5
0.4
0.3
0.2
V
CE
= 5.0 V
0.1
0.0
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
0.9
0.8
I
F
= 20 mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
10
100
1000
I
F
= 5 mA
I
F
= 10 mA
V
CE
= 5.0 V
I
F
= 20 mA
10
100
1000
R
BE
- BASE RESISTANCE (kΩ)
R
BE
- BASE RESISTANCE (kΩ)
Fig. 9 CTR vs. RBE (Saturated)
(Black Package)
1.0
1.0
Fig. 10 CTR vs. RBE (Saturated)
(White Package)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
NORMALIZED CTR ( CTR
RBE
/ CTR
RBE(OPEN)
)
0.9
V
CE
= 0.3 V
0.8
I
F
= 20 mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
10
100
1000
I
F
= 5 mA
I
F
= 10 mA
0.9
V
CE
= 0.3 V
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
10
100
1000
I
F
= 5 mA
I
F
= 10 mA
I
F
= 20 mA
R
BE
- BASE RESISTANCE (k
Ω)
R
BE
- BASE RESISTANCE (k
Ω)
Fig. 11 Collector-Emitter Saturation Voltage vs Collector Current
(Black Package)
V
CE (SAT)
- COLLECTOR-EMITTER SATURATION VOLTAGE (V)
100
Fig. 12 Collector-Emitter Saturation Voltage vs Collector Current
(White Package)
V
CE (SAT)
- COLLECTOR-EMITTER SATURATION VOLTAGE (V)
100
T
A
= 25˚C
10
10
1
1
I
F
= 2.5 mA
0.1
I
F
= 2.5 mA
0.1
0.01
I
F
= 10 mA
I
F
= 5 mA
I
F
= 20 mA
0.01
I
F
= 5 mA
I
F
= 10 mA
I
F
= 20 mA
T
A
= 25˚C
0.1
1
10
0.001
0.01
0.001
0.01
0.1
1
10
I
C
- COLLECTOR CURRENT (mA)
I
C
- COLLECTOR CURRENT (mA)
© 2005 Fairchild Semiconductor Corporation
Page 7 of 15
6/15/05
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