1
HE (High-function Economy)
Type
1-Channel (Form A) Type
PhotoMOS
RELAYS
FEATURES
1. High sensitivity and low on-
resistance
2. Controls various types of loads
such as relays, motors, lamps and
solenoids.
3. Optical coupling for extremely high
isolation
5,000 Vrms I/O isolation available.
4. Low-level off state leakage current
mm
inch
5. Eliminates the need for a power
supply to drive the power MOSFET
A power supply used to drive the power
MOSFET is unnecessary because of the
built-in optoelectronic device. This results
in easy circuit design and small PC
board area.
6. Low thermal electromotive force
(Approx. 1 V)
TYPICAL APPLICATIONS
High-speed inspection machines
Telephone equipment
Data communication equipment
UL File No.: E43149
CSA File No.: LR26550
TYPES
I/O isolation
voltage
1,500 V AC
Reinforced
5,000 V
Output rating*
Load voltage
Load curent
40 V
60 V
100 V
200 V
250 V
400 V
1,000 V
1,500 V
250 V
400 V
Tube packing style
Through hole
terminal
Part No.
Surface-mount terminal
Tape and reel packing style
Picked from the
1/2/3-pin side
Picked from the
4/5/6-pin side
Packing quantity
Tube
Tape and reel
1 tube contains
50 pcs.
1 batch contains
500 pcs.
1,000 pcs.
500 mA
AQV251
AQV251A
AQV251AX
AQV251AZ
400 mA
AQV252
AQV252A
AQV252AX
AQV252AZ
350 mA
AQV255
AQV255A
AQV255AX
AQV255AZ
250 mA
AQV257
AQV257A
AQV257AX
AQV257AZ
200 mA
AQV253
AQV253A
AQV253AX
AQV253AZ
150 mA
AQV254
AQV254A
AQV254AX
AQV254AZ
30 mA
AQV259
AQV259A
AQV259AX
AQV259AZ
20 mA
AQV258
AQV258A
AQV258AX
AQV258AZ
200 mA
AQV253H
AQV253HA
AQV253HAX
AQV253HAZ
150 mA
AQV254H
AQV254HA
AQV254HAX
AQV254HAZ
For space reasons, the package type indicator "X" and "Z" are omitted from the seal.
* Indicate the peak AC and DC values.
Note:
RATING
1. Absolute maximum ratings (Ambient temperature: 25C
77F
)
Item
Input
Output
LED forward current
LED reverse voltage
Peak forward current
Power dissipation
Load voltage (peak AC)
Continuous load
current
Peak load current
Power dissipation
Total power dissipation
I/O isolation voltage
Temperature limits
Sym-
bol
I
F
V
R
I
FP
P
in
V
L
I
L
I
peak
P
out
P
T
V
iso
T
opr
T
stg
Type of
connec-
tion
A
B
C
AQV251(A)
AQV252(A)
AQV255(A)
AQV257(A)
AQV253(A)
AQV253H(A)
AQV254(A)
AQV254H(A)
AQV259(A)
AQV258(A)
Remarks
50 mA
3 V
1 A
75 mW
40 V
0.5 A
0.7 A
1.0 A
1.8 A
60 V
0.4 A
0.6 A
0.8 A
1.5 A
100 V
0.35 A
0.45 A
0.70 A
1.0 A
200 V
0.25 A
0.35 A
0.5 A
0.75 A
250 V
0.2 A
0.3 A
0.4 A
0.6 A
400 V
0.15 A
0.18 A
0.25 A
0.5 A
1,000 V
0.03 A
0.04 A
0.05 A
0.09 A
1,500 V
0.02 A
0.025 A
0.04 A
0.06 A
360 mW
410 mW
1,500 V AC
5,000 V AC
20
C to +80
C
4
F to +176
F
40
C to +100
C
40
F to +212
F
f = 100 H
Z
,
Duty factor + 0.1%
A connection:
Peak AC, DC
B, C connection: DC
A connection:
100 ms
(1 shot) V
L
= DC
Non-condensing at
low temperatures
: Value for reinforced 5,000 V type
Operating
Storage
8.8
0.05
.346
.002
6.4
0.05
.252
.002
3.9
0.2
.154
.008
AQV25
r
8.8
0.05
.346
.002
6.4
0.05
.252
.002
3.6
0.2
.142
.008
2
2. Electrical characteristics (Ambient temperature: 25C
77F
)
Item
Input
Output
Transfer
charac-
teristics
LED operate
current
LED turn off
current
LED dropout
voltage
On resistance
Off state
leakage
current
Switch-
ing
speed
Turn
on
time*
Turn
off
time*
I/O
capacitance
Initial I/O
isolation
resistance
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Minimum
Typical
Maximum
Sym-
bol
I
Fon
I
Foff
V
F
R
on
R
on
R
on
--
T
on
T
off
C
iso
R
iso
--
--
--
A
B
C
--
--
--
--
--
Type of
connec-
tion
AQV251(A)
0.9 mA
3 mA
0.4 mA
0.8 mA
1.14 V**
1.5 V
0.6
1
0.3
0.5
0.15
0.25
1
A
(ms)
1.7
3
(ms)
0.07
0.2
1.3 pF
3 pF
1,000 M
AQV252(A)
0.9 mA
3 mA
0.4 mA
0.8 mA
1.14 V**
1.5 V
0.74
1.4
0.37
0.7
0.18
0.35
1
A
(ms)
1.4
3
(ms)
0.07
0.2
1.3 pF
3 pF
1,000 M
AQV255(A)
0.8 mA
3 mA
0.4 mA
0.7 mA
1.14 V**
1.5 V
1.8
2.5
0.9
1.25
0.45
0.63
1
A
(ms)
0.9
2
(ms)
0.09
0.2
1.3 pF
3 pF
1,000 M
AQV257(A)
0.9 mA
3 mA
0.4 mA
0.8 mA
1.14 V**
1.5 V
2.6
4
1.4
2
0.7
1
1
A
(ms)
1.5
3
(ms)
0.1
0.2
1.3 pF
3 pF
1,000 M
AQV253(A)
AQV253H(A)
(mA)
0.9
1.4
3
3
1.14 V**
1.14
1.5 V
5.5
8
2.7
4
1.4
2
1
A
(ms)
0.8
2.4
2
4
(ms)
0.06
0.2
1.3 pF
3 pF
1,000 M
AQV254(A)
AQV254H(A)
(mA)
0.9
1.4
3
3
(mA)
0.4
0.4
0.8
1.3
(mA)
0.4
0.4
0.8
1.3
1.14 V**
1.14
1.5 V
12.4
16
6.2
8
3.1
4
1
A
(ms)
0.8
1.8
2
3
(ms)
0.05
0.2
1.3 pF
3 pF
1,000 M
AQV259(A)
0.9 mA
3 mA
0.4 mA
0.8 mA
1.14 V**
1.5 V
85
200
60
100
30
50
10
A
(ms)
0.6
1
(ms)
0.04
0.2
1.3 pF
3 pF
1,000 M
AQV258(A)
0.9 mA
3 mA
0.4 mA
0.8 mA
1.14 V**
1.5 V
345
500
345
500
160
250
10
A
(ms)
0.35
1
(ms)
0.04
0.2
1.3 pF
3 pF
1,000 M
Condition
I
L
= Max.
I
L
= Max.
I
F
= 5 mA
I
F
= 5 mA
I
L
= Max.
Within 1 s on time
I
F
= 5 mA
I
L
= Max.
Within 1 s on time
I
F
= 5 mA
I
L
= Max.
Within 1 s on time
I
F
= 0
V
L
= Max.
I
F
= 5 mA
I
L
= Max.
I
F
= 5 mA
I
L
= Max.
f = 1 MH
Z
V
B
= 0
500 V DC
For type of connection, see Page 366.
: Value for reinforced 5,000 V type
**1.25 V at I
F
= 50 mA
REFERENCE DATA
1.-(1) Load current vs. ambient temperature
characteristics
Allowable ambient temperature: 20C to +80C
4F to +176F
; Type of connection: A
1.-(2) Load current vs. ambient temperature
characteristics
Allowable ambient temperature: 20C to +80C
4F to +176F
; Type of connection: A
2.-(1) On resistance vs. ambient temperature
characteristics
Measured portion: between terminals 4 and 6; LED
current: 5 mA; Continuous load current: Max. (DC)
0
20
40
Load current, mA
0
20
40
60
80
100
20
AQV259
10
30
50
AQV258
Ambient temperature,
C
0
0.2
0.4
Load current,A
Ambient temperature,
C
0.6
0
20
40
60
80
100
20
AQV251
AQV252
AQV255
0.1
0.3
0.5
AQV257
AQV253(H)
AQV254(H)
0
0.4
0.6
0.8
1.0
20
1.2
0
20
40
60
80
0.2
AQV255
1.6
1.8
2.0
1.4
AQV252
AQV251
Ambient temperature,
C
On resistance,
AQV25
r
Ton
Input
Output
10%
90%
*Turn on/Turn off time
Toff
3
0
0.5
1.0
1.5
2.0
3.0
10
20
30
40
50
60
AQV253, AQV254, AQV257, AQV2
2.5
0
AQV252
AQV251
AQV259
AQV258
LED current, mA
Turn on time, msec.
2.-(3) On resistance vs. ambient temperature
characteristics
Measured portion: between terminals 4 and 6; LED
current: 5 mA; Continuous load current: 30 mA (DC)
3. Turn on time vs. ambient temperature
characteristics
LED current: 5 mA; Load voltage: Max. (DC);
Continuous load current: Max. (DC)
2.-(2) On resistance vs. ambient temperature
characteristics
Measured portion: between terminals 4 and 6; LED
current: 5 mA; Continuous load current: Max. (DC)
4. Turn off time vs. ambient temperature
characteristics
LED current: 5 mA; Load voltage: Max. (DC);
Continuous load current: Max. (DC)
0
100
200
20
300
0
20
40
60
80
AQV258
400
500
AQV259
Ambient temperature,
C
On resistance,
0
4
6
8
10
20
12
0
20
40
60
80
2
16
18
20
14
AQV253(H)
AQV257
AQV254(H)
Ambient temperature,
C
On resistance,
0
0.2
0.3
20
0.4
0
20
40
60
80
0.1
AQV251,AQV252,AQV255
AQV253,AQV257
AQV254
Ambient temperature,
C
Turn off time, ms
AQV259,AQV258
5. LED operate current vs. ambient
temperature characteristics
Sample: AQV251, AQV252, AQV253, AQV254,
AQV259; Load voltage: Max. (DC); Continuous load
current: Max. (DC)
0
2
3
20
4
0
20
40
60
80
1
Ambient temperature,
C
LED operate current, mA
2.0
1.2
0.6
0.2
0.6
0.2
0.4
0.4
0.8
AQV251
1.6
2.4
0.8
1.6
2.42.0
1.2
0.4
0.5
0.1
0.3
0.5
0.1
0.3
AQV255
AQV254(H)
Voltage, V
Current, A
AQV252
0.4
AQV253(H)
AQV257
0
1.0
1.1
1.2
1.3
20
0
20
40
60
80
1.4
50mA
30mA
20mA
10mA
5mA
1.5
Ambient temperature,
C
LED dropout voltage, V
4
40
10
40
30
2
AQV259
6
8
4
8
6
2
30
20
10
20
AQV258
Voltage, V
Current, mA
0
60
100
10
10
9
10
12
20
40
10
6
80
3
Load voltage, V
Off state leakage current, A
0
60
100
10
10
9
10
12
20
40
10
6
80
3
Load voltage, V
Off state leakage current, A
6. LED turn off current vs. ambient
temperature characteristics
Sample: AQV251, AQV252, AQV253, AQV254,
AQV259; Load voltage Max. (DC); Continuous load
current: Max. (DC)
0
2
3
20
0
20
40
60
80
1
4
Ambient temperature,
C
LED turn off current, mA
0
2
20
4
0
20
40
60
80
1
3
AQV251
AQV252
AQV257
AQV253
AQV254
AQV259
AQV258
Ambient temperature,
C
Turn on time, ms
7. LED dropout voltage vs. ambient
temperature characteristics
LED current: 5 to 50 mA
9.-(1) Off state leakage current
Sample: AQV259;
Measured portion: between terminals 4 and 6;
Ambient temperature: 25C
77F
9.-(2) Off state leakage current
Sample: AQV254H;
Measured portion: terminals 4 and 6;
Ambient temperature: 25C
77F
10.-(1) LED forward current vs. turn on time
characteristics
Measured portion: between terminals 4 and 6;
Load voltage: Max. (DC); Continuous load current:
Max. (DC); Ambient temperature: 25C
77F
8.-(1) Voltage vs. current characteristics of
output at MOS portion
Measured portion: between terminals 4 and 6;
Ambient temperature: 25C
77F
8.-(2) Voltage vs. current characteristics of
output at MOS portion
Measured portion: between terminals 4 and 6;
Ambient temperature: 25C
77F
AQV25
r
4
0
2
4
6
8
12
10
20
30
40
50
60
10
0
AQV253H
AQV254H
LED current, mA
Turn on time, ms
12.-(1) Applied voltage vs. output capacitance
characteristics
Measured portion: between terminals 4 and 6;
Frequency: 1 MHz; Ambient temperature: 25C
77F
0
100
200
600
10
20
30
40
50
300
400
0
500
60
AQV253(H), AQV254(H),257
AQV251, AQV252
Applied voltage, V
Output capacitance, pF
12.-(2) Applied voltage vs. output capacitance
characteristics
Sample: AQV259; Measured portion: between
terminals 4 and 6; Frequency: 1 MHz; Ambient
temperature: 25C
77F
0
20
40
120
10
20
30
40
50
60
80
0
100
60
Applied voltage, V
Output capacitance, pF
AQV25
r
11.-(1) LED forward current vs. turn off time
characteristics
Measured portion: between terminals 4 and 6;
Load voltage: Max. (DC); Continuous load current:
Max. (DC); Ambient temperature: 25C
77F
11.-(2) LED forward current vs. turn off time
characteristics
Measured portion: between terminals 4 and 6;
Load voltage: Max. (DC); Continuous load current:
Max. (DC); Ambient temperature: 25C
77F
0
0.02
0.04
0.08
0.06
10
20
30
40
0.12
50
60
AQV251,252,255
0
0.10
AQV253,257
AQV254
AQV259,258
LED Current, mA
Turn off time, ms
0
0.02
0.04
0.08
0.06
10
20
30
40
0.12
50
AQV253H,254H
0
0.10
LED current, mA
Turn on time, ms
10.-(2) LED forward current vs. turn on time
characteristics
Measured portion: between terminals 4 and 6;
Load voltage: Max. (DC); Continuous load current:
Max. (DC); Ambient temperature: 25C
77F
T1
OUT
OUT
IN (+)
Optoelectronic
device
IN ()
LED
Power MOSFET
PhotoMOS Relay Technical Information
The emitted light passes
through transparent silicon
and reaches the photoelectric
element (solar cell) which is
mounted opposite the LED.
The photoelectric element
converts the received light to
a voltage corresponding to
the quantity of light. This
voltage passes through a
control circuit and charges the
MOSFET gate on the output
side.
When the MOSFET gate
voltage supplied from the
photoelectric element reaches
a preset voltage value, the
MOSFET begins to conduct
and turns on the load.
When a signal current flows
to the input terminals the LED
on the input side emits light.
When operated
When the emitted light from
the LED stops, the voltage of
the photoelectric element
decreases.
When the voltage supplied
from photoelectric element
decrease, the control circuit
rapidly discharges the gate
charge of MOSFET.
This control circuit makes
MOSFET stop conducting and
immediately turns off the load.
When the signal current at
the input terminal is cut off,
the LED stops emitting light.
When turned off
How PhotoMOS Relays Operate:
Optoelectronic device directly drives a power MOSFET.
Semiconductor relay incorporating the
advantages of both electromagnetic
relays and semiconductors.
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