7
Sheet No.: D3-A04901FEN
GP2A25J0000F Series
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Design Considerations
●
Design guide
1) V
O
terminal : Open collector output
This product operates the light emitter by pulse drive. Please supply the stable supply voltage in order to
prevent error operation by pulse current.
Please use this device after connecting a capacitor between V
O
and GND for prevention of line noise.
2) Prevention of detection error
Please be careful that you need to keep the direct inverter light away from the photo detecting surface
since the device will not operate correctly in such case.
In addition, we recommend to make sure the operation test in the actual application.
3) Plugging in/out
The connector should be plugged in/out at normal temperature.
This product is not designed against irradiation and incorporates non-coherent IRED.
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Parts
This product is assembled using the below parts.
• Photodetector (Q'ty : 1)
[Using a silicon photodiode as light detecting portion, and a bipolar IC as signal processing circuit]
Category
Maximum Sensitivity
wavelength (nm)
Sensitivity
wavelength (nm)
Response time (μs)
Photo
diode
900 700 to 1 200 400
• Photo emitter (Q'ty : 1)
Category Material
Maximum light emitting
wavelength (nm)
I/O Frequency (MHz)
Infrared emitting diode
(non-coherent)
Gallium arsenide (GaAs) 950 0.3
• Material
Case Lens Bottom cover
GP2A25J0000F
Black polyphernylene
Sulfi de resin (UL94 V-0)
Acryl resin
(UL94 HB)
Polycarbonate resin (Black) (UL94 V-2)
GP2A25DJ000J
Polycarbonate resin (Black) (UL94 V-2)
GP2A25NJJ00F
∗
Polycarbonate resin (Black) (UL94 V-2)
∗
The IR-90 fi lter (Fuji Photo Film Co., Ltd.) is inserted between case and detector side lens.
• Others
Laser generator is not used.
