Datasheet > R4998

R4998

更新时间： 2024-10-02 22:24:43

品牌	Logo	应用领域
HAMAMATSU		光电
页数	文件大小	规格书
2页	30K
描述
PHOTOMULTIPLIER TUBE

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R4998 数据手册

PHOTOMULTIPLIER TUBE

R4998

Fast Time Response, 25 mm (1 Inch) Diameter,

10-stage, Bialkali Photocathode, Head-On Type

GENERAL

Parameter

Description/Value

Unit

—

mm dia.

—

Spectral Response

Wavelength of Maximum Response

300 to 650

420

Bialkali

Material

Minimum Effective Area

Photocathode

Window Material

Dynode

Borosilicate glass

Linear-focused

—

Structure

Number of Stages

—

Base

Suitable Socket

12-pin base JEDEC No. B12-43

E678-12A (supplied)

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter

Value

2500

250

0.1

-30 to +50

Unit

Vdc

°C

Between Anode and Cathode

Between Anode and Last Dynode

Supply Voltage

Average Anode Current

Ambient Temperature

CHARACTERISTICS (at 25°C)

Parameter

Min.

—

100

—

Typ.

9.0

400

4.1 × 10⁵

5.7 × 10⁶

100

Max.

—

800

—

Unit

µA/lm

mA/W

µA/lm-b

A/lm

A/W

—

Luminous (2856K)

Cathode Sensitivity

Radiant at 420nm

Blue (CS-5-58 filter)

Luminous (2856K)

Radiant at 420nm

Anode Sensitivity

Gain

Anode Dark Current (after 30min. storage in darkness)

Anode Pulse Rise Time

Electron Transit Time

0.7

Time Response

NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.

VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE

Electrodes

Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10

Ratio

1.3

4.8

1.2 1.8 1.5 2.5

Supply Voltage: 2250Vdc, K: Cathode, Dy: Dynode, P: Anode

Assembled type (H6533) is recommended.

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

Information furnished by HAMAMATSU 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.

1999 Hamamatsu Photonics K.K.

中文翻译

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