IRM-2638S5F4 [IDEA]
LED LAMPS; LED灯
IDEA.LNC. 
IRM-2638S5F4
Page 1 of 4
Electronic Optical Characteristics (Ta = 25°C, and Vcc = 3 V)
Parameter
Symbol
Min.
Typ.
Max.
Units
Condition
Consumption Current
B.P.F. Center Frequency
Peak Wavelength
ICC
Fo
—
—
1.2
38
—
—
mA
KHz
nm
No signal input
—
8
940
—
—
—
—
λp
L0
Reception Distance
m
L45
θh
5
—
At the ray axis
*1
Half Angle (Horizontal)
Half Angle (Horizontal)
High Level Pulse Width
Low Level Pulse Width
High Level Output Voltage
Low Level Output Voltage
—
—
45
45
—
—
—
0.2
—
—
deg
deg
µs
µs
V
θv
TH
TL
VH
VL
400
400
4.5
—
800
800
—
At the ray axis
*2
0.5
V
*1: The ray receiving surface at a vertex and relation to the ray axis in the range of θ= 0° and θ=45°.
*2: A range from 30 cm to the arrival distance. Average value of 50 pulses.
* Specifications subject to change without notice. Dimensions are in mm ±0.3 unless stated otherwise.
IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph: 714-525-3302, 800-LED-IDEA; Fax: 714-525-3304
0512
IRM-2638S5F4
Page 2 of 4
Absolute Maximum Ratings at Ta = 25 ˚C
Parameter
Symbol
VCC
Rating
0 ~ 6
Units
V
Supply Voltage
Operating Temperature
Storage Temperature
Topr
-25 ~ +80
-40 ~ +85
260
˚C
Tstg
˚C
Soldering Temperature a
Tsol
˚C
a. 4 mm from mold body less than 10 seconds
Block Diagram:
Application Circuit:
RC Filter should be connected closely between VCC pin and GND pin.
* Specifications subject to change without notice. Dimensions are in mm ±0.3 unless stated otherwise.
IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph: 714-525-3302, 800-LED-IDEA; Fax: 714-525-3304
0512
IRM-2638S5F4
Page 3 of 4
Test Method:
The specified electro-optical characteristics are satisfied under the following conditions at the
controlled distance.
1. Lighting conditions
a. Measurement location should be free of bright sunlight.
b. Ambient illumination should be from ordinary white fluorescent lamps (not high
frequency lamps) and must be less than 10 Lux at the module surface. (Ee ≤ 10 Lux)
2. Standard transmitter
A transmitter whose output is adjusted to V0 = 400 mV p-p and with output waveform
shown in Fig.-1. The standard transmitter is specified according to the measurement
method shown in Fig.-2.
3. Measuring system
The measuring system is shown in Fig.-3.
* Specifications subject to change without notice. Dimensions are in mm ±0.3 unless stated otherwise.
IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph: 714-525-3302, 800-LED-IDEA; Fax: 714-525-3304
0512
IRM-2638S5F4
Page 4 of 4
Typical Electro-Optical Characteristics Curves
Fig. 4. Relative Spectral Sensitivity vs.
Wavelength
Fig. 5. Relative Transmission Distance vs.
Direction
Fig. 6. Output Pulse Length vs. Arrival
Distance
Fig. 7. Arrival Distance vs. Supply Voltage
* Specifications subject to change without notice. Dimensions are in mm ±0.3 unless stated otherwise.
IDEA, Inc., 1351 Titan Way, Brea, CA 92821 Ph: 714-525-3302, 800-LED-IDEA; Fax: 714-525-3304
0512
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