LC541

Cold-cathode numeric or character indicator cross-referenced to RFT Z870M. The German comparison catalog documents the RFT type's striking, maintaining, current, and display characteristics while cautioning that listed equivalents are not necessarily electrically identical.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 9-12 TGL 11608
Socket code: B13B
Base pins: -
Nominal heater: -

Description

LC541 is a cold-cathode numeric or character indicator tube listed in the supplied German comparison catalog as comparable to RFT type Z870M. The catalog publishes 150 V anode striking, 140 V maintaining, a 3–5 mA cathode-current range, and associated display and mechanical data for that RFT type. The source explicitly cautions that comparable tubes are not necessarily identical, so these mapped RFT values are retained as comparison data rather than asserted as exact original-manufacturer ratings.

Socket description

B13B Nixie 13-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 9-12 TGL 11608
Socket code: B13B
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9-12 TGL 11608 - 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

Max cathode current: 5 mA
Regulator minimum current: 3 A
Regulator maximum current: 5 A
Regulator starting voltage: 150 V
Regulator maintaining voltage: 140 V

Cold-cathode display section; promoted starting/maintaining voltages and current range are published for comparable RFT type Z870M.

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 Nixie RFT

Published operating points and test conditions from this source.

SECTION 1

Nixie

Other

Comparable RFT Type
Z870M
Catalog cross-reference; comparable types are not guaranteed identical
Minimum Operating Supply Voltage
170 V
Published for comparable RFT type Z870M
Cathode Current Minimum
3 mA
Published for comparable RFT type Z870M
Cathode Current Maximum
5 mA
Published for comparable RFT type Z870M
Peak Cathode Current
7 mA
Published for comparable RFT type Z870M
Ambient Temperature Minimum
-50 °C
Published for comparable RFT type Z870M
Ambient Temperature Maximum
70 °C
Published for comparable RFT type Z870M
Displayed Symbols
0 to 9; biquinary
Published for comparable RFT type Z870M
Reading Direction
side
Published for comparable RFT type Z870M
Symbol Height
15.5 mm
Published for comparable RFT type Z870M
Maximum Viewing Distance
10 m
Published for comparable RFT type Z870M
Mounting Orientation
Pin 8 facing front
Published for comparable RFT type Z870M
Maximum Bulb Height
49.2 mm
Published for comparable RFT type Z870M
Maximum Bulb Diameter
22.2 mm
Published for comparable RFT type Z870M

Characteristic

Anode Striking Voltage
150 V
Published for comparable RFT type Z870M
Anode Maintaining Voltage
140 V
Published for comparable RFT type Z870M