H7826_15 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – Compact Head-on PMT

Compact Head-on PMT
Photosensor Modules H7826 Series
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 series also has excellent re-
sistance to vibration and shock compared to other photomultiplier tubes,
making it ideal for use in portable equipment.
Product Variations
Type No. Spectral Response
Features
H7826
H7826P
300 nm to 650 nm
For general applications in visible range
For photon counting
H7826-01
H7826P-01
300 nm to 850 nm
For general applications in visible to near IR range
For photon counting
This product can't be used at vacuum environment or reduced pressure environment.
Specifications
(at +25 °C)
Parameter
H7826
H7826-01
H7826P
H7826P-01
Unit
Input Voltage
+11.5 to +15.5
V
Max. Input Voltage
+18
V
Max. Input Current
Max. Output Signal Current
40
mA
100
µA
Max. Control Voltage
+1.2 (Input impedance 100 kΩ)
V
Recommended Control Voltage Adjustment Range
+0.5 to +1.1
V
Effective Area
15
mm
Peak Sensitivity Wavelength
420
380
420
380
nm
Luminous Sensitivity
Min.
60
80
60
80
µA/lm
Typ.
90
120
90
120
Blue Sensitivity Index (CS 5-58) Typ.
10.5
—
10.5
—
—
Red/White Ratio
Typ.
—
0.2
—
0.2
—
Radiant Sensitivity *¹
Typ.
85
49
85
49
mA/W
Luminous Sensitivity *²
Min.
Typ.
Radiant Sensitivity *¹ *² Typ.
10
50
30
4.7 × 10⁴
1.3 × 10⁴
—
A/lm
—
—
A/W
Dark Current *² *³
Typ.
3
Max.
20
Gain *²
Min.
—
3
nA
20
1.8 × 10⁶
1 × 10⁶
—
Dark Count *³ *⁴
Typ.
—
Max.
—
200
2000
s^-1
500
3500
Rise Time *²
Typ.
1.5
ns
Ripple Noise *² *⁵ (peak to peak) Max.
0.5
mV
Settling Time *⁶
Max.
0.2
s
Operating Ambient Temperature *⁷
+5 to +45
°C
Storage Temperature *⁷
-20 to +50
°C
Weight
70
g
*1: Measured at the peak sensitivity wavelength *2: Control voltage = +1.0 V *3: After 30 minutes storage in darkness
*4: Control voltage: Plateau voltage *5: Cable RG-174/U, Cable length 450 mm, load resistance = 1 MΩ, load capacitance = 22 pF
*6: 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. *7: No condensation
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