5200 St. Patrick St., Montreal
The Old Railway, Princes Street
Que., H4E 4N9, Canada
Ulverston, Cumbria, LA12 7NQ, UK
Tel: 514-768-8000
Tel: 01 229 581 551
Fax: 514-768-8889
Fax: 01 229 581 554
QF-84
NSL-21UV401
UV Photocell
Features
·
350 nm Response in UV Spectrum
·
Passive Resistance Output
·
Compact Design
·
Rugged Hermetic Package
·
98% Blocking of Visible Spectrum
Description
The NSL-21UV401 photocell is a near-UV detector
suitable for flame detection in the 300-380 nm range
while blocking most of the visible spectrum. The TO-5
package contains a quartz window to allow detection
of radiation below 350 nm.
Absolute Maximum Ratings
Voltage
60V
Operating & Storage Temperature
-30
°
C to +85
°
C
Dimensions in mm.
ø 9.1
ø 8.3
ø 6.1
2.3
6.4
38 nom.
5.1
200
400
600
800 1000
0.0
0.2
0.4
0.6
0.8
1.0
Relative Spectral Response
Relative Response
Wavelength (nm)
0.001
0.01
0.1
1
10
100
0.01
0.1
1
10
100
1000
350 Nano Meter Response
Resistance (MegOhm)
Power (uW / sq cm)
Electrical Characteristics
(T
A
=25
°
C unless otherwise noted)
Symbol Parameter
Min
Typ
Max
Units Test Conditions
P
Peak Wavelength
340
350
360
nm
R
ON
On Resistance
30
50
70
K
=350 nm, Ee=20
µ
W/cm
2
R
OFF
Off Resistance
50
M
Ee=0 mW/cm
2
, t=5 sec
t
D
Decay Time
200
mSec
Ee=20 to 0 mW/cm
2
R
Temperature Coefficient
0.6
%/
°
C
Specifications subject to change without notice.
103120 REV 1
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