ROHM RPI-579N1 Technical data

RPI-579N1

External dimensions (Unit : mm)

Photointerrupter, General type

Absolute maximum ratings (Ta=25°C)

)
LED

(

Input

Parameter Symbol
Forward current
Reverse voltage
Power dissipation
Collector-emitter voltage

)

Emitter-collector voltage
Collector current

Output

photo-

transistor

(

Collector power dissipation
Operating temperature
Storage temperature
Soldering temperture

∗ 1mm from the body bottom.

IF
VR
PD

VCEO
VECO

I

C

PC

Topr
Tstg
Tsol 260 / 3 °C / s

Limits

50

5
80
30

4.5
30
80

−25 to +85

−40 to +85

Electrical and optical characteristics (Ta=25°C)

Parameter

Forward voltage
Reverse current

Input

charac-

teristics

Dark current
Peak sensitivity wavelength

Output

charac-

teristics

Collector current
Collector-emitter saturation voltage

Response time

Transfer

characteristics

Cut-off frequency
Peak light emitting wavelength

Infrared

light

emitter

diode

Response time

Photo

transistor

Maximum sensitivity wavelength

Rise time
Fall time

Symbol

V

F

IR

ICEO

λ

P

IC

VCE(sat)

tr
tf
fC

λ

P

tr tf

λ

P

Min.

Unit

mA

V

mW

V
V

mA

mW

°C
°C

∗

Max.

Typ.

1.6

1.3

−

10

−

−

0.5

−

−

−

800

−

−

−

0.5

0.1

−

−

0.5

−

10

− 10 −µs
1

−

−

− 950 − nm

10

−

800

−

−

−

Applications

Printers
Facsimiles
AV equipment

Features

1) Heat resistance (170°C).

2) Small gap (0.5mm) and good accuracy.

3) Quick response time.

4) Filter against visible ray is built-in.

5) Kinked forming.

Unit

VI

F=50mA

V

R=10V

µA

V

CE=10V

µA
nm

V

mA

CE=5V, IF=20mA

F=20mA, IC=0.1mA

I

V

µs

CC=5V, IF=20mA, RL=100Ω

V

MHz

F=50mA

I

∗ Non-coherent Infrared light emitting diode used.

VCC=5V, IC=1mA, RL=100Ω

µs

∗ This product is not designed to be protected against electromagnetic wave.

nm

Conditions

−

−

10

3.6±0.4

6

7.5(1.45)

13.8
Gap

5

A

A

4-0.4

(10)

14(Bottom)

2.35±0.1 6.6±0.1

2.5

0.7±0.1

(4-0.85)

Optical

center

6

5.2±0.1

2-φ0.7±0.1

Through hole

0.5

2-0.45

Cathode

5.2

0.8

(2.54)

2.54

1.6

Collector

EmitterAnode

10

2.35

2-φ0.8

2.6

+0.05

4-φ0.8

−0

8.95

Notes:

1. Unspecified tolerance

shall be ±0.2 .

2. Measurement in the bracket is
that of lead pin at base the mold.

3. Dimension in parenthesis are
show for reference.

4. Please be carefully not to receive
external disturbing light because
the top and back face emitter and
detector element isn't covered by case.

Electrical and optical characteristics curves

)

%

100

80

60

40

20

0

RELATIVE COLLECTOR CURRENT : Ic (

034512

DISTANCE : d (mm)

Fig.1 Relative output vs. distance ( )

)

%

100

80

60

40

20

0

RELATIVE COLLECTOR CURRENT : Ic (

034512

DISTANCE : d (mm)

Fig.4 Relative output vs. distance ( )

d

d

50

40

30

20

10

FORWARD CURRENT : IF (mA)

/ Pc (mW)

100

D

80

60

40

20

POWER DISSIPATION /

COLLECTOR POWER DISSIPATION : P

0

−20 0 20 40 60 80 100

AMBIENT TEMPERATURE : Ta (°C)

Fig.2 Forward current falloff

P

C

P

D

0

200 20406080100

AMBIENT TEMPERATURE : Ta (°C)

Fig.5 Power dissipation / collector power

dissipation vs. ambient temperature

50

40

30

20

10

FORWARD CURRENT : IF (mA)

0

0.40.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8

FORWARD VOLTAGE : VF (V)

−25°C
0°C

25°C
50°C
75°C

Fig.3 Forward current vs. forward voltage

)

160

%

140
120

100

80
60

40

20

0

RELATIVE COLLECTOR CURRENT : Ic (

40200 20406080100

AMBIENT TEMPERATURE : Ta (°C)

Fig.6 Relative output vs. ambient

temperature

5

4

3

2

1

COLLECTOR CURRENT : Ic (mA)

0

0 1020304050

FORWARD CURRENT : IF (mA)

Fig.7 Collector current vs. forward current

3.0

(mA)

C

2.0

1.0

COLLECTOR CURRENT : I

0

COLLECTOR-EMITTER VOLTAGE : VCE (

4861020

IF=25mA

20mA

15mA

10mA

5mA

V)

Fig.10 Output characteristics

200
100

50

20

RESPONSE TIME : t (µs)

10

10 50 10020 500 1000200 2000

COLLECTOR CURRENT : Ic (µA)

Fig.8 Response time vs.

collector current

VCCInput

td :

Delay time
Rise time (time for output current to rise

tr :

from 10% to 90% of peak current)

tf :

Fall time (time for output current to fall
from 90% to 10% of peak current)

RL

t

f

t

r

Input

Output

Output

t

r

t

f

RL=5kΩ

t

r

t

f

RL=2kΩ

RL=1kΩ

td

tr

tf

Fig.11 Response time measurement circuit

90%
10%

1000

100

10

1

DARK CURRENT : ID (nA)

0.1

0 25 50 75 10025

AMBIENT TEMPERATURE : Ta (°C)

Fig.9 Dark current vs. ambient

temperature

VCE=30V
VCE=20V
VCE=10V

Appendix

No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document are no antiradiation design.

Notes

The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.

About Export Control Order in Japan

Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.

Appendix1-Rev1.1