IN12A

Russian long-life cold-cathode Nixie numerical display for visual indication of electrical signals, with published service life of at least 7,500 hours.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: SK136
Base pins: -
Nominal heater: -

Description

The IN12A is a Russian cold-cathode glow-discharge Nixie numeric/symbol display intended for visual indication. Ignition voltage up to 170 v, maintaining/anode-cathode voltage up to 150 v, published life at least 7500 h. The supplied Russian datasheet was translated for this record.

Socket description

SK-136 13-contact oval Nixie socket family

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: SK136
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
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

Nixie

X-ray radiationInterelectrode capacitances

Regulator maximum current: 2 A
Regulator starting voltage: 170 V
Regulator maintaining voltage: 150 V

Single cold-cathode glow-discharge indicator section; Nixie-specific operating data are also retained as 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

196X Nixie Russian 2

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

Decimal-point indication current
- to 0.3 mA
Published datasheet value
Digit operating current DC
2 to 3.5 mA
DC supply
Decimal-point operating current DC
0.3 to 0.7 mA
DC supply
Digit operating current pulsed average
1 to 2 mA
Pulsed supply
Decimal-point operating current pulsed average
0.15 to 0.2 mA
Pulsed supply
Supply voltage
200 to - V
Minimum stated source/supply voltage
Ignition voltage
- to 170 V
Published datasheet value
Maintaining voltage / anode-cathode drop
- to 150 V
Published datasheet value
Indication current
- to 2 mA
Published datasheet value

Characteristic

Brightness
100 to - cd/m^2
Minimum
Viewing angle
45 to - deg
Minimum
Service life
7500 to - h
Minimum