GENERAL

FEATURES

Parameter

Description/Value

Unit

Spectral Response

Wavelength of Maximum Response

Photo-

cathode

Window Material

Dynode

Direct

Interelectrode

Capacitances

Base

Suitable Socket

nm

nm

—

mm

—

—

—

pF

pF

—

—

300 to 650

400

Sb-Cs

8

× 24

Borosilicate glass

Circular-cage

9

4

6

JEDEC No. B11-88

E678-11A

Material

Minimum Useful Size

Structure

Number of Stages

Anode to Last Dynode

Anode to All Other Electrodes

PHOTOMULTIPLIER TUBE

1P21

Information furnished by HA MAM ATS U is believed to be reliable. However, no 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.

Subject to local technical requirements and regulations, availability of products included in this promotional material may var y. Please consult with our sales office.

Figure 1: Typical Spectral Response

TPMSB0139EA

28mm (1-1/8 Inch) Diameter Side-on

300 to 650nm Spectral Response

Low Dark Current Visible Range Photocathode

100

10

1

0.1

0.01

200

400

600

800

WAVELENGTH (nm)

CATHODE

RADIANT

SENSITIVITY

QUANTUM

EFFICIENCY