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Voltage Regulator ·VoltageRegulator

5651A

Miniature cold-cathode glow-discharge voltage-reference tube for precision regulated DC supplies, maintaining approximately 85–86 V.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
5B0
Socket code
B7G
Base pins
7
Nominal heater
-

Description

Cold-cathode glow-discharge voltage-reference tube for stabilizing DC power supplies. Extracted from the supplied RCA Receiving Tube Manual excerpt.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
5B0
Socket code
B7G
Base pins
7
Nominal heater voltage
-
Nominal heater current
-
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

5B0 - 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

Voltage Regulator

X-ray radiationInterelectrode capacitances
Regulator voltage
85.5 V
Regulator minimum current
1.5 mA
Regulator maximum current
3.5 mA
Regulator starting voltage
107 V
Regulator maintaining voltage
85.5 V

Published maximum ratings and device-specific characteristics are promoted where schema-compatible; remaining switching/gauge/regulator electrical data is retained in section parameters.

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

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Other

  • DC OPERATING CURRENT (Continuous)

    3.5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • value must be chosen so that (1) the maximum current rating of g.5 ma is — published value 1

    1 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • value must be chosen so that (1) the maximum current rating of g.5 ma is — published value 2

    5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • DC operating current minimum

    1.5 mA

    Continuous operating range minimum.

  • DC operating current maximum

    3.5 mA

    Continuous operating range maximum.

Characteristics

  • DC OPERATING CURRENT (Continuous)

    1.5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • AMBIENT TEMPERATURE RANGE — published value 1

    -55 C

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • AMBIENT TEMPERATURE RANGE — published value 2

    90 C

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • DC Starting Voltage — published value 1

    107 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • DC Starting Voltage — published value 2

    1158 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 1.5 ma — published value 1

    1.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 1.5 ma — published value 2

    83 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 1.5 ma — published value 3

    85 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 1.5 ma — published value 4

    87 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 2.5 ma — published value 1

    2.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 2.5 ma — published value 2

    83.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 2.5 ma — published value 3

    85.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 2.5 ma — published value 4

    87.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 3.5 ma — published value 1

    3.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 3.5 ma — published value 2

    84.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 3.5 ma — published value 3

    86.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • At 3.5 ma — published value 4

    88.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Regulation (1.5 ma to 3.5 ma) — published value 1

    1.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Regulation (1.5 ma to 3.5 ma) — published value 2

    3.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Regulation (1.5 ma to 3.5 ma) — published value 3

    3 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Voltage after first 300

    300 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Fluctuation (Voltage jump)d

    0.1 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Shunt Capacitor

    0.02

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 115 volts minimum should be provided to insure

    115 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • e A 5e ties resistor must always be used with

    5

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • the 5651A, The resistance

    5651

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • not exceeded at the Highest anode-supply voltage employed, antl (2) the

    2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • minimum current rating of 1.5 ma is always exceeded when the anode-sup

    1.5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • = 135, do operating mi l l iamperes = 2.5, anode-circuit resistance — published value 1

    135 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • = 135, do operating mi l l iamperes = 2.5, anode-circuit resistance — published value 2

    2.5 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 0. 1 per cent from the initial do operating voltage. At the — published value 1

    0 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 0. 1 per cent from the initial do operating voltage. At the — published value 2

    1 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • do operating voltage greater than 0. 1 percent from the operat — published value 1

    0 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • do operating voltage greater than 0. 1 percent from the operat — published value 2

    1 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • ing voltage at 300 hours. During any 100-hour interval between — published value 1

    300 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • ing voltage at 300 hours. During any 100-hour interval between — published value 2

    100 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • in do operating voltage greater than 0.05 per cent from the

    0.05 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • should be l imited to 0.02 µf

    0.02

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Using RCA-5651A as Voltage-Reference Tube

    5651 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • l ine voltage of 1 17 volts and an output voltage of 250 volts — published value 1

    1 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • l ine voltage of 1 17 volts and an output voltage of 250 volts — published value 2

    17 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • l ine voltage of 1 17 volts and an output voltage of 250 volts — published value 3

    250 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • is less than 0.2 volt over the current range of-0 to 225 — published value 1

    0.2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • is less than 0.2 volt over the current range of-0 to 225 — published value 2

    0 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • is less than 0.2 volt over the current range of-0 to 225 — published value 3

    225 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • at ion of ±10 per cent in l ine voltage is less than 0. 1 volt — published value 1

    10 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • at ion of ±10 per cent in l ine voltage is less than 0. 1 volt — published value 2

    0 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • at ion of ±10 per cent in l ine voltage is less than 0. 1 volt — published value 3

    1 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 250 VOLTS °

    250 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • C1 - 0. 1 µf, 400 volts — published value 1

    400 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • C1 - 0. 1 µf, 400 volts — published value 2

    5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • C1 - 0. 1 µf, 400 volts — published value 3

    -12000 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • C1 - 0. 1 µf, 400 volts — published value 4

    2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • R 1 - Pl ate current 'balanc — published value 1

    1 ohm

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • R 1 - Pl ate current 'balanc — published value 2

    68000 ohm

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • R 2 - 12000 ohms, 2 watts — published value 1

    2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • R 2 - 12000 ohms, 2 watts — published value 2

    12000 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • R 2 - 12000 ohms, 2 watts — published value 3

    2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • ~ 375 volts app ro x. at zero load current; 325 volts app rox, at 225 mill i — published value 1

    375 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • ~ 375 volts app ro x. at zero load current; 325 volts app rox, at 225 mill i — published value 2

    325 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • ~ 375 volts app ro x. at zero load current; 325 volts app rox, at 225 mill i — published value 3

    225 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • DC starting voltage average

    107 V

    Published average starting voltage.

  • DC starting voltage maximum

    115.8 V

    Published maximum starting voltage.

  • DC operating voltage at 2.5 mA average

    85.5 V

    Published average maintaining voltage at 2.5 mA.

  • Regulation from 1.5 mA to 3.5 mA

    3 V

    Maximum published regulation span.

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Characteristic

  • Operating voltage at 1.5 mA

    85 V

  • Operating voltage at 2.5 mA

    85.5 V

  • Operating voltage at 3.5 mA

    86.5 V

  • Regulation from 1.5 to 3.5 mA

    3 V

Other

  • Shunt capacitor maximum

    0.02 uF

  • Warm-up period

    3 min