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DCG920

Philips directly heated single-anode mercury-vapor half-wave rectifier for high-voltage industrial supplies, providing approximately 21 kV inverse-voltage capability and 2.5 A output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 5 V / 13.5 A

Description

Single-anode mercury-vapour rectifying valve. The supplied Philips sheet was read for heater/filament data, ratings, characteristics, capacitances, and operating conditions where published.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 5 V
Nominal heater current: 13.5 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 21000 V
Rectifier nominal output current: 2.5 A
Rectifier peak forward current: 10 A
Rectifier forward voltage drop: 12 V
Rectifier warm-up time: 90 s

Single-anode mercury-vapour rectifier; maximum published inverse-voltage case promoted.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Construction

Filling
Mercury vapour

Other

Maximum peak inverse voltage
21 kV
HighestVoltageCase
Maximum average current
2.5 A
Maximum peak current
10 A
Maximum surge current
100 A
Duration<=0.1s

Characteristics

Arc voltage at 2.5 A
12 V
Preheating time
90 sec