PR-20
Surface Mountable Photo-reflector PR-20
Features
1.2.65(L)×3.35(W)× 0.95(H)mm
2.1mm
1.Dimensions: 2.65(L)×3.35(W)×0.95(H) mm, being extra thin and compact in size
2.The focal distance of 1mm enables the position sensing to be of high accuracy.
3.The adoption of the visible-light- cutting resin prevents the malfunction of the photo-reflecter,PR-20, which may be caused by disturbance light.
4.Reflow soldering available
■ /Outline drawing |
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Center of photo translstor |
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(1.3) |
(1.0) |
Center of LED die |
P.C.board |
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1 |
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3 |
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(0.845) |
(2.15) |
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2.65 |
Soldering lerminal |
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(0.94) |
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2 |
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4 |
(0.25) |
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(0.24) |
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(1.55) |
(0.825) |
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3.35 |
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0.95 |
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1.1 |
(0.475) |
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1 |
3 |
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1.7 |
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(0.475) |
2 |
4 |
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0.7 |
1.95 |
0.7 |
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/Unit: mm |
The following soldering patterns are recommended for
reflow-soldering:
For reflow soldering
1.1 |
0.85 |
1.1 |
1.5 |
1.5 |
1.5 |
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Characteristics
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P Po.Pc)-Ta |
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P Po.Pc)-Ta Characteristics |
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140 |
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120 |
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Total power dissipation |
(mWP |
60 |
Pc |
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100 |
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40 |
Pd |
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50 |
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20 |
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-40 -20 0 20 40 60 80 100 |
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T a(°C) |
IF-VF
IF-VF Characteristics
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100 |
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50 |
(mA) |
20 |
10 |
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IF |
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5
2
1.0 1.2 |
1.4 1.6 |
VF(V)
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Ic-IF |
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1000 |
Ic-IF Characteristics |
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500 |
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A) |
200 |
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100 |
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Ic( |
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50 |
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20 |
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10 |
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1 |
2 |
5 |
10 |
20 |
50 |
100 |
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IF(mA) |
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VF-Ta |
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1.6 |
VF-Ta Characteristics |
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1.5 |
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1.4 |
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V) |
1.3 |
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VF( |
1.2 |
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IF=20mA |
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1.1 |
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1.0 |
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IF=4mA |
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0.9 |
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-40 -20 |
0 |
20 40 |
60 |
80 100 |
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T a(°C) |
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Application
3. クドライブの位置検出センサ。
Photo-reflector, PR-20, can be used as a sensor in the following applications.
1.Start and end mark sensing for VCR and audio tapes
2.Reel rotation sensing for VCR and audio tapes
3.Position sensing for compact disc players and floppy disc drives
4.Position and timing sensing for copying machines and printers
5.Mark or information sensing on camera films
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■ /Measuring method |
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a). /Light current |
b). /Response speed |
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A . |
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A .coated surface |
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input |
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1mm |
output |
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90% |
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10% |
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RL |
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tr |
tf |
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Reflecting board |
■ /Absolute Maximum Rating |
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(Ta 25 ) |
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/Item |
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/Symbol |
/Rating |
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/Power dissipation |
(mW) |
PD |
32.5 |
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/Forward current |
(mA) |
IF |
25 |
Input |
1/Pulse forward current 1 |
(A) |
IFP |
0.1 |
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/Reverse voltage |
(V) |
VR |
6 |
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/Collector dissipation |
(mW) |
PC |
75 |
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/Collector current |
(mA) |
IC |
20 |
Output |
/Voltage between collector and emitter (V) |
VCEO |
18 |
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/Voltage between emitter and collector (V) |
VECO |
4 |
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/Total power dissipation |
(mW) |
P |
100 |
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/Operating temperature range |
( ) |
Topr |
-30 +80 |
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/Storage temperature range |
( ) |
Tstg |
-40 +85 |
1 Duty: 1/100 0.1msec/ 1 Duty:1/100, Pulse width: 0.1msec
■ /Electro-optical characteristics |
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(Ta 25 ) |
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/Item |
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Symbol |
Conditions |
Min |
Typ |
Max |
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/Forward voltage |
(V) |
VF |
IF=4mA |
- |
1.1 |
1.3 |
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/Reverse current |
(μA) |
IR |
VR=6V |
- |
- |
10 |
Input |
/Capacitance between teminals (pF) |
Ct |
V=0V, f=1KHz |
- |
30 |
- |
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/Peak wave length (nm) |
λp |
IF=20mA |
- |
940 |
- |
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/Collector dark current |
(μA) |
ICEO |
VCE=10V |
- |
- |
0.1 |
Output |
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/Light current |
(μA) |
IC |
VCE=2VIF=4mAd=1mm |
50 |
- |
(540) |
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/Leakage current |
(μA) |
ILEAK |
VCE=2V IF=4mA |
- |
- |
1 |
Coupling |
/Rise time |
(μsec) |
tr |
VCE=2V, IC=100μA |
- |
25 |
- |
Characteristics |
/Fall time |
(μsec) |
tf |
RL=1KΩ |
- |
30 |
- |
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87