
26
Product Variations
Specifications
The H7826 series photosensor modules consist of a 19-mm (3/4") diameter
head-on photomultiplier tube and a high-voltage power supply circuit. The
length of the photomultiplier tube used here is short compared to other photo-
multiplier tubes of the same diameter, making it compact even though it has a
large light input diameter of 15 mm. The H7826 also has excellent resistance
to vibration and shock compared to other photomultiplier tubes, making it
ideal for use in portable equipment.
Type No.
H7826
H7826P
H7826-01
H7826P-01
300 nm to 650 nm
300 nm to 850 nm
For general applications in visible range
For photon counting
For general applications in visible to near IR range
For photon counting
Spectral Response
Features
Compact Head-on PMT
Photosensor Modules H7826 Series
*1: Measured at the peak sensitivity wavelength *2: Control voltage = +1.0 V *3: After 30 minute storage in darkness
*4: Cable RG-174/U, Cable length 450 mm, load resistance = 1 M
,
load capacitance = 22 pF
*5: The time required for the output to reach a stable level following a change in the control voltage from +1.0 V to +0.5 V.
Parameter
Input Voltage
Max. Input Voltage
Max. Input Current
Max. Output Signal Current
Max. Control Voltage
Recommended Control Voltage Adjustment Range
Effective Area
Sensitivity Adjustment Range
Peak Sensitivity Wavelength
Rise Time *
2
Ripple Noise *
2
*
4
(peak to peak)
Settling Time *
5
Operating Ambient Temperature
Storage Temperature
Weight
+11.5 to +15.5
+18
35
100
+1.2
(Input impedance 100 k
)
+0.5 to +1.1
15
1: 10
3
380
80
120
—
0.2
49
1.5
1
0.2
+5 to +45
-20 to +50
70
10
3
20
—
—
—
—
—
—
3
20
H7826
420
60
90
10.5
—
85
50
4.7
×
10
4
H7826P
420
60
90
10.5
—
85
1.8
×
10
6
200
500
H7826-01
30
1.3
×
10
4
H7826P-01
380
80
120
—
0.2
49
1
×
10
6
2000
3500
Unit
V
V
mA
μ
A
V
V
mm
—
nm
μ
A/lm
—
—
mA/W
A/lm
A/W
nA
—
s
-1
ns
mV
s
°
C
°
C
g
Min.
Typ.
Min.
Typ.
Typ.
Max.
Min.
Typ.
Max.
Max.
Luminous Sensitivity
Blue Sensitivity Index (CS 5-58)
Red/White Ratio
Radiant Sensitivity *
1
Luminous Sensitivity *
2
Radiant Sensitivity *
1
*
2
Dark Current *
2
*
3
Gain *
2
Dark Count *
3
A
C