HAMAMATSU R6800U-26 Datasheet

METAL PACKAGE
SOLAR BLIND PHOTOTUBE

PRELIMINARY DATA

AUG. 1999

Compact (16 mm diameter, 12 mm seated length),

solar blind (spectral response: 115 to 220 nm)

R6800U-26

The R6800U-26 is a subminiature phototube encapsu­lated in a TO-8 metal package. The electrode structure
is designed to operate at a low voltage, allowing easy
handling. Its excellent solar-blind spectral response
ensures efficient UV detection without using an optical
visible cut filter.

GENERAL

Parameter Description/Value Unit

Spectral Response
Wavelength of Maximum Response

Photocathode
Window Material

Material
Minimum Effective Area

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter Value Unit

Anode Supply Voltage
Peak Cathode Current
Average Cathode Current
Ambient Temperature

FEATURES

■ Compact

■ Solar Blind

■ Low Voltage Operation

■ Good Linearity with

Respect to High Power Light

APPLICATIONS

■ Laser Power Meter

● Ar2: 126nm

● F2 : 157nm

■ Excimer Lamp Monitor

■ UV Power Meter

115 to 220

160

Diamond (Opaque)

6

2

MgF

500

12

4

-80 to +50

nm
nm

—

mm

—

Vdc

µA
µA

°C

CHARACTERISTICS (at +25°C)

Parameter Unit

Radiant Sensitivity (at 160 nm)
Dark Current
Recommended Operating Voltage

NOTE: a Ebb = 15 V

Subject to local technical requirements and regulat ions, availability of products included in this promotional material may var y. P lease consult with our sales office.
Information furnished by HAMA M ATSU is believed to be reliable. However, n o responsibility is assumed for possible inaccuracies or omissions. Specifications are

subject to change without notice. No patent rights are granted to any of the circuits described herein.

a

1999 Hamamatsu Photonics K.K.

©

Value

12

1

15

mA/W Typ.

pA Max.

Vdc

METAL PACKAGE SOLAR BLIND PHOTOTUBE R6800U-26

Figure 1: Typical Spectral Response

TPT B0011EA

100

10

1

0.1

CATHODE RADIANT SENSITIVITY (mA/W)

0.01
100

150 200

WAVELENGTH (nm)

250

300

Figure 2: Saturation Characteristics

TPT B0012EA

100

80

RELATIVE CATHODE CURRENT (%)

010202030 404050 606070 80

SUPPLY VOLTAGE (V)

at 160nm

90 100

Figure 3: Dimensional Outline (Unit: mm)

INSULATION COVER (Polyoxymethylene)

6 MIN.

INSULATION COVER (Teflon)

EFFECTIVE AREA

12.8 ± 0.5

0.3 ± 0.2 5 ± 1

15.9 ± 0.4

WINDOW

7.7 ± 0.3

11.0 ± 0.4

PHOTOCATHODE

Side ViewTop View

NOTE: Don't use pins excepting ANODE and CATHODE pins.

4.0 ± 0.3

5.4 ± 0.3

12- 0.45

GUIDE MARK

ANODE

SHORT PIN

CATHODE SHORT PIN

Bottom View

TPT A0026EA

HAMAMATSU PHOTONICS K.K., Electron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: [phone], Fax: [phone]

U.S.A.:

Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]

Germany:

Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]

France:

Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]

United Kingdom:
North Europe:
Italy:

Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: [phone], Fax: [phone]

Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: [phone], Fax: [phone]

Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]

TPT 1010E02
AUG. 1999 SI
Printed in Japan (500)