Blue and UV sensitive (Series 1)
Series 1 photodiodes offer a broadband spectral response extending into the UV region. The series is particularly
intended for applications from 250 to 430nm where high levels of illumination occur. The detectors may be operated
with reverse bias up to 10 volts or in the photovoltaic mode for best signal to noise performance. And are particularly
suitable for monitoring the operation of UV lamps.
Electrical / Optical Specifications
Characteristics measured at 22°C (±2) ambient, and a reverse bias of 30 volts, unless otherwise stated.
Single Elements
Type
No.
Active Area
mm
2
OSD1-1
OSD5-1
OSD15-1
OSD50-1
OSD100-1
1
5
15
50
100
mm
1.13 dia
2.52 dia
3.8 x 3.8
7.98 dia
11.3 dia
Responsivity A/W
λ
= 250 nm
Min.
Typ.
0.03
0.04
0.03
0.04
0.03
0.04
0.03
0.04
0.03
0.04
λ
= 436 nm
Min.
Typ.
0.12
0.16
0.12
0.16
0.12
0.16
0.12
0.16
0.12
0.16
Dark Current
nA
Max.
Typ.
10
20
60
500
1500
1
5
20
100
400
NEP WHz
-½
λ
= 250 nm
Typ.
6.0e-13
1.3e-12
2.7e-12
6.0e-12
1.2 x 10
-11
Capacitance pF
Vr=0 V
Max.
12
52
150
500
1000
Vr=10V
Max.
4
12
35
110
220
1
3
3
3
13
Package
Quadrants
(Values given are per element unless otherwise stated)
Type
No
mm
2
QD7-1
QD50-1
QD100-1
7
50
100
Active Area
Responsivity A/W
λ
= 250 nm
λ
= 436 nm
Sep.
mm
0.2
0.2
0.2
Min
0.03
0.03
0.03
Typ.
0.04
0.04
0.04
Min.
0.12
0.12
0.12
Typ.
0.16
0.16
0.16
Dark Current nA
NEP WHz
-½
λ
= 250 nm
Typ.
Capacitance pF
Crosstalk %
Λ
= 250 nm
Max
5
5
5
Typ.
1
1
1
7
10
11
Package
mm
2.99 dia
7.98 dia
11.3 dia
Max.
25
100
200
Typ.
2
20
40
8.4e-13
2.7e-12
3.8e-12
Vr=0 V
Max.
20
127
250
Vr=10V
Max.
8
28
55
Linear Arrays
(Values given are per element unless otherwise stated)
Type
No.
No. of Elements
Array Dimensions
Area
mm
2
1.00
2.02
3.6
4.42
7.29
Responsivity
λ
= 250 nm
λ
= 436 nm
Min
Typ.
Min
Typ.
Dark Current
nA
Max.
Typ.
NEP WHz
-½
λ
= 250 nm
Typ.
6.0e-13
8.4e-13
1.3e-12
1.3e-12
4.0e-12
Capacitance pF
Vr=0V Vr=10V
Max
Max
12
22
38
46
92
4
8
10
15
15
Package
LD2A-1
LD2B-1
LD20-1
LD35-1
MD25-1
2
2
20
35
5x5
Width. Lgth. Sep.
mm
mm
mm
2.00
0.5
0.05 0.03
0.04
1.42
1.42 0.45 0.03
0.04
4.0
0.9
0.05 0.03
0.04
4.6
0.96 0.03 0.03
0.04
Matrix Arrays
(Values given are
2.7
2.7
0.1
0.03
0.04
0.12
0.16
15
1
0.12
0.16
20
2
0.12
0.16
50
5
0.12
0.16
50
5
per element unless otherwise stated)
0.12
0.16
2000
20
4
4
16
17
18
Note: Recommended operating voltage range 0 to 10 volts, for all Series 1 Detectors.
Highlighted items are Centronic standard products generally available from stock
Series 1 Spectral Response Graph
Capacitance versus Bias Voltage
Due to our policy of continued development, specifications are subject to change without notice.
