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Wamco
Incandescent Display Catalog

Incandescent Display Catalog

Product catalog summary

About Wamco
Wamco, founded in 1968, is a prominent supplier of subminiature incandescent lamps and Direct View Filament (DVF) Displays, mainly for the aerospace sector. The company is known for its high-quality products, rapid adaptation to new designs, and excellent customer service.

KW Series DVF Displays
The KW DVF Displays are engineered for high-quality, sunlight-readable performance in demanding environments. Key features include non-crossed filaments, an all-glass package, a larger sealing area, special filament mounting pads, a higher vacuum level, greater filament strength, and the elimination of water cycle issues.

Benefits

Sunlight readable
Low power consumption
Night vision goggle compatibility
Wide viewing angle
Long life and compact design
Withstands temperature extremes and transient voltages
Compatible with LED display I.C. drivers

Technical Information
Brightness Measurement: Wamco uses the candela method for measuring brightness, which is more accurate and repeatable than foot-lambert values.
Multiplexing: The recommended minimum frequency is 500 Hz to avoid detrimental thermal swings.
Voltage Chart: Demonstrates the effect of overrated and underrated voltages on display life and brightness.

Quality Control

Production lots coded for traceability
100% aging and brightness measurement before shipment
Sample testing to general inspection level “I”

Environmental Characteristics

Operating Temperature Range: -55°C to 100°C
Storage Temperature Range: -65°C to 125°C
Meets various MIL-STD requirements for thermal shock, vibration, shock, and seal

Ordering Information
The catalog provides detailed ordering information for the KW Part Family, including options for character height, glass color, terminal type, and operating voltage.

Specifications
Specifications for single unit displays, including voltage, current per segment, luminous intensity, and package dimensions, are provided for various part numbers.

Overview: The document provides technical specifications for various models of KW series display components, including 7-segment and 16-segment displays, with different configurations such as standard, low profile, right angle mount, and alphanumeric displays.

Specifications:

Voltage and Current: Most models operate at 13-15V with a current per segment ranging from 2-15 mA.
Luminous Intensity: Varies by model, with values such as 44 ± 8 mcd for KW 104S-TB and 109 ± 23 mcd for KW 105AL.
Character and Package Dimensions: Character height is typically 0.300 inches, with package dimensions varying slightly by model.

Models and Features:

KW 104S-TB and KW 105S-TB: Standard 7-segment displays with cannon pins.
KW 104G and KW 105G: Low profile 7-segment displays.
KW 104AL and KW 105AL: Alphanumeric 16-segment displays.
KW 104RG and KW 105RG: Right angle mount 7-segment displays.
KW 104S-CL and KW 105S-CL: Colon displays with options for gold plated leads.
KW 104S-DP and KW 105S-DP: Decimal point displays with cannon pin options.

Physical Dimensions and Pinout: Detailed dimensions and pinout configurations are provided for each model, indicating precise measurements for height, width, and depth, as well as pin arrangements.

Remarks: Some models have specific features such as low brightness options or long pin lengths. The document also notes that millicandela ratings are for clear glass, with colored glass yielding lower brightness.

Technical Document Summary

1. Specifications
This document provides detailed specifications for various KW series display components. Each part number is associated with specific voltage, current per segment, luminous intensity, character dimensions, and package dimensions. The document includes parts from the 100 Series and 100G DIP Series, covering directional, plus/minus, numeric, alphanumeric, and digit displays.

2. Physical Dimensions
The document outlines the physical dimensions of the components, including tolerances for various measurements such as height, width, and depth. Specific dimensions are provided for each part number, with some variations noted for different configurations.

3. Display Pinout
Pinout diagrams are included for each component, detailing the arrangement and labeling of pins. This section is crucial for understanding the electrical connections required for each display type.

4. Part Number Details
Each part number is described with its directional orientation (e.g., East/West, North/South), voltage requirements, current per segment, and luminous intensity. Remarks include additional features such as alternative pin configurations or gold-plated leads.

5. Recommendations
For parts where dimensions differ from the standard drawings, the document advises contacting Wamco for detailed drawings. This ensures accurate integration into specific applications.

6. Tables and Data
The document contains tables summarizing key data for each part number, including voltage, current, luminous intensity, and dimensions. These tables provide a quick reference for comparing different components within the series.

7. Notes
Some parts have specific notes regarding their millicandela ratings, which do not include the decimal point or colon. This information is critical for applications requiring precise brightness levels.

Overview: This document provides technical specifications for the KW 200 Series, which includes various display components such as Colon, Decimal Point, Directional, Plus/Minus, and Numeric 1 segments. Each part is detailed with its voltage, current per segment, luminous intensity, character dimensions, package dimensions, and specific remarks.

Specifications:

Colon and Decimal Point: These segments operate at 4-5 volts with a current of 10 mA per segment. The luminous intensity ranges from 2.7 to 6.4 mcd, depending on the model. The package dimensions are consistent across models, with variations in segment count and pin configurations.
Directional (East/West, North/South, Left/Right): These segments require 4-5 volts and 12-14 mA per segment. Luminous intensity varies from 33 to 51 mcd. The package dimensions are standardized, with 7 to 9 segments per model.
Plus/Minus: Operating at 4-5 volts and 12-14 mA per segment, these models have a luminous intensity of 10-11 mcd. They feature 2 segments and come with options for colored glass, affecting brightness.
Numeric 1: These segments operate at 4-5 volts with a current of 12-14 mA per segment. The luminous intensity is 10-11 mcd, with options for different glass types affecting brightness.

Physical Dimensions: The document includes detailed measurements for each part, specifying height, width, and depth with tolerances. These dimensions are crucial for ensuring compatibility and proper fit in applications.

Display Pinout: Each segment type includes a pinout diagram, detailing the electrical connections necessary for integration into electronic systems.

Remarks: Specific models include additional features such as gold-plated leads, cannon pins, and colored glass options, which influence performance characteristics like brightness and durability.

Overview:
This document provides technical specifications and details for the KW ML and KWZ ML series of multi-digit displays with decimal points and guide pins. It includes information on part numbers, descriptions, electrical characteristics, luminous intensity, and physical dimensions.

Specifications:

Voltage and Current: The displays operate at voltages of 4V or 5V with a current per segment of 12 ± 2 mA for the KW ML series and 11.5 ± 1.5 mA for the KWZ ML series.
Luminous Intensity: The luminous intensity varies by model, with values such as 33 ± 7 mcd for the KW ML2-214S and 116 ± 17 mcd for the KWZ ML3-215S.
Character and Package Dimensions: The character height is 0.225 inches, with varying widths and depths depending on the number of digits and decimal points.

Physical Dimensions:
The document includes detailed measurements for each model, specifying dimensions such as height, width, spacing, and depth. These are critical for ensuring proper fit and function in applications.

Display Pinout:
The pinout diagrams are provided for each model, showing the arrangement of pins and their functions, which is essential for correct electrical connections.

Remarks:
Some models feature green glass, which affects brightness. The millicandela ratings do not include decimal points or colons, and ratings are provided for individual digits.

Overview: The document provides technical specifications and details for the 100/200 Series of digit and decimal point displays with inner diodes. It includes part numbers, descriptions, electrical characteristics, physical dimensions, and display patterns.

Specifications:

Part Numbers: KWD 105S-A and KWD 205S-DP-A-01 are highlighted, with specific voltage, current, and luminous intensity values.
Voltage and Current: Both parts operate at 5V, with current per segment specified as 15 mA for KWD 105S-A and 10 mA for KWD 205S-DP-A-01.
Luminous Intensity: KWD 105S-A has a luminous intensity of 52.5 mcd, while KWD 205S-DP-A-01 has 3.2 mcd.

Physical Dimensions:

KWD 105S-A: Dimensions are 0.300 x 0.150 x 0.468 inches.
KWD 205S-DP-A-01: Dimensions are 0.047 x 0.375 x 0.075 inches.

Display Patterns:

7-Segment Digits: Active segment truth tables are provided for digit displays.
16-Segment Alphanumeric: Detailed segment activation patterns for alphanumeric displays.
Symbols: Patterns for directional symbols like North/South and East/West.

Sockets:

Various sockets are listed for use with the KW 100S/200S series, including KWS 8, KWS-1-2RG, KWS DP-1, and KWS DP-2, with specific pin configurations and dimensions.

Parts Index: An alphabetical index of parts is provided, listing various models and configurations within the KW series.

Contact Information: Wamco Inc. contact details are provided, including address, phone, fax, website, and email.

Catalog excerpts

Technical reference Document status Incandescent Displays JTechnical reference Document type Document status Technical reference Document type Document status Technical reference Technical reference Technical reference Michael Ramsey Document type Document status Technical reference Technical reference Document type Document status Technical reference Document type Document status Technical reference GND Michael Ramsey Created by Document type Document status Document status Document type Document status Document status Document type Michael Ramsey 5/6/2025 Document type Technical reference Document status Document type Document status Document type Document type Technical reference Document type Document status Technical reference Michael Ramsey Document status Document type

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Wamco began in 1968 as a supplier of high quality sub miniature incandescent lamps to the Aerospace, computer and hi-rel electronics industries. Today we are listed on the Federal Specification QPL and are a top supplier of subminiature incandescent lamps and DVF Displays to the Aerospace industry. Wamco is noted for high quality products, quick response to new designs, excellent sales staff, and service which is backed by one of the largest lamp and DVF Display inventories in the world. Wamco's KW DVF Displays were developed as a result of requests we received from our Aerospace customers to...

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Voltage Chart There are two methods of measuring the brightness of direct view filament displays. The first method yields candelas, and the second, foot- lamberts. Wamco uses the candela method. Candelas can be measured very accurately, and more importantly, the measurements have a high degree of repeatability. Candelas closely represent what the eye actually sees because it measures integrated light from all of the filament coils. The history of measuring the brightness of filament displays in foot-lambert values has not offered a high degree of reliability. Accuracy is suspect and the repeatability...

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Night-Vision Goggle Specification When used with the proper NVG filter, KW Series readouts meet these NVG specifications: • US Army secure lighting energy ratios • United Kingdom Green/Red ratio Quality Control • Production lots coded for traceability. • 100% aging 32 hours before shipment • 100% brightness measurement at rated voltage and 100% visual inspection for brightness at dimmed voltage. • 100% selected for current draw. • 100% production lots are sample tested to general inspection level "I"; 1.0 AQL. This procedure is not recommended. Filaments are designed to be operated at rated voltages....

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KW Part Family Single Unit Displays

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Decimal Point / Colon 1 0 5 S DP TB Amber Glass Alt Red Glass Green Glass Alt Green Glass Low Brightness Red Glass Alt Character Height Aged & Dot Index Mark Yellow Glass Dot Index Mark 0 Without Decimal Point 1 With Decimal Point Operating Voltage 4 Volt Package Type Terminal Type AU8P Alt 8-Pin, Gold Plated Pins DBA Alt 12-Pin GPL Gold Plated Pins H Long Pins Length RG Right Angle Mount 1 (01) Alt Gold Plated Pins 8P Alt 8-Pin Character Code Ordering Information | KW Part Family 7

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100 Series Digit, Standard Voltage D.P. / (V) Segment Colon 7 Segment, ALT 8-Pin, Gold Plated Leads 7 Segment, Green Glass 7 Segment, Gold Plated Leads Technical reference Document type Document status 7 Segment, .311" Char Height Part Number Voltage D.P. / (V) Segment Colon Display Pinout Physical Dimensions Document Technical referencestatus Document type *Dimensions differ from the above drawing, contact Wamco for detailed drawing †Millicandela rating for clear glass; colored glass yields lower brightness 7 Segment, Cannon Pins 7 Segment, Cannon Pins 7 Segment, Cannon Pins, Low Brightness...

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100 SeriesDigit, Low P rofilePhysical Dimensions Display Pinout INDEX KEY Part Number KW Part Family | 100 Series | Digit, Low Profile 9

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100 Series:Digit, Right Angle MountPhysical Dimensions Display Pinout Part Number 10 KW Part Family | 100 Series | Digit, Right Angle Mount

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Display Pinout Part Number Part Number KW Part Family | 100 Series | Alphanumeric 11

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100 SeriesAlphanumeric, Right Angle Mount Display Pinout Physical Dimensions Part Number 12 KW Part Family 100 Series Alphanumeric, Right Angle Mount

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Part Number KW Part Family | 100 Series | Colon 13

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Displaiyr Pinout Part Number 14 KW Part Family | 100 Series | Decimal Point

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Display Pinout Physical Dimensions Voltage D.P. / (V) Segment Colon Part Number *Dimensions differ from the above drawing, contact Wamco for detailed drawing Technical reference Dept. Technical reference Michael Ramsey 5/6/2025 Document type Michael 5/6/2025 Document statusRamsey Document status Document type Part Number Voltage D.P. / (V) Segment Colon 7 Segment, ALT 8-Pin, Gold Plated Leads *Dimensions differ from the above drawing, contact Wamco for detailed drawing Technical reference Document type Document status Dept. RamseyTechnical reference Michael 5/6/2025 Michael Ramsey 5/6/2025 Document...

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D INDEX KEY Document type Document type Document status Document status Document type Voltage D.P. / (V) Segment Colon Michael Ramsey 5/6/2025 Document type Document status Technical reference Current Per Segment (mA) Description Display Pinout INDEX KEY B Technical reference Document status Technical reference Voltage D.P. / (V) Segment Colon Part Number Display Pinout Technical reference Michael Ramsey 5/6/2025 Dept. Document type Technical reference Created by Document status KW Part Family | 100 Series | Directional Document type Document type Document status Document status Technical Approved...

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Part Number Display Pinout Part Number KW Part Family | 100 Series | Plus / Minus

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Display Pinout Part Number 18 KW Part Family | 100 Series | Numeric 1

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Dual In-Line Package, Alphanumeric 1 Physical Dimensions Display Pinout Current Per Segment (mA) Part Number 16 Segment, ALT Package Size 16 Segment, ALT Package Size Technical reference Technical reference Approved byCreated by Document type Document status Document type Voltage D.P. / (V) Segment Colon Document status KW Part Family | 100G DIP Series | Dual In-Line Package,

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Incandescent Display Catalog

Incandescent Display Catalog

Catalog excerpts

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