Document
Photomicrosensor (Transmissive)
EE-SX398/498
Be sure to read Precautions on page 25.
■ Dimensions
Note: All units are in millimeters unless otherwise indicated.
12.2±0.3
8.5±0.5
0.5±0.1 10±0.2
Four, C0.3
Two, C1±0.3
Optical axis
6.5±0.1
8.2±0.5 Cross section BB
(9.2)
6.2±0.5 Five, 0.25±0.1 (2.5)
Five, 0.5±0.1
Cross section AA
Internal Circuit
KV O
AG
Terminal No.
Name
A Anode K Cathode
V Power supply (Vcc)
O Output (OUT) G Ground (GND)
Unless otherwise specified, the tolerances are as shown below.
Dimensions
Tolerance
3 mm max.
±0.3
3 < mm ≤ 6
±0.375
6 < mm ≤ 10
±0.45
10 < mm ≤ 18
±0.55
18 < mm ≤ 30
±0.65
■ Features
• Incorporates an IC chip with a built-in detector element and amplifier.
• Incorporates a detector element with a built-in temperature compensation circuit.
• A wide supply voltage range: 4.5 to 16 VDC • Directly connects with C-MOS and TTL. • High resolution with a 0.5-mm-wide sensing aperture. • Dark ON model (EE-SX398) • Light ON model (EE-SX498)
■ Absolute Maximum Ratings (Ta = 25°C)
Emitter
Item Forward current
Reverse voltage
Detector
Power supply voltage
Output voltage
Output current
Permissible output dissipation
Ambient tem- Operating
perature
Storage
Soldering temperature
Symbol IF
VR VCC
VOUT IOUT POUT
Topr Tstg Tsol
Rated value 50 mA (see note 1) 4V 16 V
28 V 16 mA 250 mW (see note 1) –40°C to 75°C –40°C to 85°C 260°C (see note 2)
Note: 1. Refer to the temperature rating chart if the ambient temperature exceeds 25°C.
2. Complete soldering within 10 seconds.
■ Electrical and Optical Characteristics (Ta = 25°C)
Emitter
Item Forward voltage Reverse current
Symbol VF IR
Detector
Peak emission wavelength
Low-level output voltage
λP VOL
High-level output volt- VOH age
Current consumption ICC
Peak spectral sensitivi- λP ty wavelength
LED current when output is OFF IFT
LED current when output is ON
Hysteresis
ΔH
Response frequency
f
Response delay time Response delay time
tPLH (tPHL) tPHL (tPLH)
Value 1.2 V typ., 1.5 V max. 0.01 μA typ., 10 μA max. 940 nm typ.
0.12 V typ., 0.4 V max.
15 V min.
3.2 mA typ., 10 mA max. 870 nm typ.
2 mA typ., 5 mA max.
15% typ. 3 kHz min. 3 μs typ. 20 μs typ.
IF = 20 mA VR = 4 V IF = 20 mA
Condition
VCC = 4.5 to 16 V, IOL = 16 mA, IF = 0 mA (EE-SX398), IF = 5 mA (EE-SX498) VCC = 16 V, RL = 1 kΩ, IF = 5 mA (EE-SX398), IF = 0 mA (EE-SX498) VCC = 16 V VCC = 4.5 to 16 V
VCC = 4.5 to 16 V
VCC = 4.5 to 16 V (see note 1) VCC = 4.5 to 16 V, IF = 15 mA, IOL = 16 mA (see note 2) VCC = 4.5 to 16 V, IF = 15 mA, IOL = 16 mA (see note 3) VCC = 4.5 to 16 V, IF = 15 mA, IOL = 16 mA (see note 3)
132 EE-SX398/498 Photomicrosensor (Transmissive)
Note: 1.Hysteresis denotes the difference in forward LED current value, expressed in percentage, calculated from the respective forward LED currents when the photo IC in turned from ON to OFF and when the photo IC in turned from OFF to ON.
2. The value of the response frequency is measured by rotating the disk as shown below.
3. The following illustrations show the definition of response delay time. The value in the parentheses applies to the EESX498.
Input Output
Input Output
0.5 mm
2.1 mm 0.5 mm
EE-SX398
Disk
EE-SX498
■ Engineering Data
Note: The values in the parentheses apply to the EE-SX498.
Forward Current vs. Collector Dissipation Temperature Rating
Forward Current vs. Forward
LED Current vs. Supply Voltage
Voltage Characteristics (Typical) (Typical)
Ta = −30°C Ta = 25°C Ta = 70°C
IFT OFF (IFT ON)
Ta = 25°C RL = 1 kΩ
IFT ON (IFT OFF)
LED current IFT (mA)
Forward current IF (mA)
Output allowable dissipation PC (mW)
Forward current IF (mA)
Low level output voltage VOL (V)
Low level output voltage VOL (V)
Ambient temperature Ta (°C)
LED Current vs. Ambient Temperature Characteristics (Typical)
VCC = 5 V RL = 330 Ω IFT OFF (IFT ON)
Forward voltage VF (V)
Low-level Output Voltage vs. Output Current (Typical)
Ta = 25°C VCC = 5 V IF = 0 mA (15 mA)
IFT ON (IFT OFF)
Supply voltage VCC (V)
Low-level Output Voltage vs. Ambient Temperature Characteristics (Typical)
VCC = 5 V IF = 0 mA (15 mA)
IOL = 16 mA
LED current IFT (mA)
IOL = 5 mA
Ambient temperature Ta (°C)
Current Consumption vs. Supply Voltage (Typical)
Ta = 25°C IF = 0 mA (15 mA)
Output current IC (mA)
Ambient temperature Ta (°C)
Response Delay Time vs. Forward Repeat Sensing Position
Current (Typical)
Characteristics (Typical)
VCC = 5 V RL = 330 Ω Ta = 25°C
VOUT (EE-SX3@@) VOUT (EE-SX4@@)
Ta = 25°C IF = 15 mA VCC = 5 V RL = 330 Ω n = repeat 20 times
d1 = 0.01 mm
Center of optical axis
Output transistor
Response delay time tPHL, tPLH (μs)
Current consumption Icc (mA)
Supply voltage VCC (V)
Forward current IF (mA)
Distance d (mm)
EE-SX398/498 Photomicrosensor (Transmissive)
133
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