0.40 inch 4-digit seven segment led display

0.40 inch 4-digit seven segment led display

Series No:

BL-Q40A-43

Weight:(g/pcs)

4.8

Dimension:(mm)

39.5 x 18 x 7

Character Height: (inch)

0.40 inch

Specification:

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Description:

Introduction

The 0.40 inch 4-digit seven segment LED display is a cornerstone of modern electronic visualization technology, combining compactness with clarity for a variety of applications. Often referenced in technical resources like the 4 digit 7 segment display 12 pin datasheet, this display is a staple in electronic devices requiring precise and clear numeric readings. The flexibility and reliability of the 7 seg display make it an indispensable component for engineers and designers alike.

Comprehensive Features of the 0.40 Inch 4-Digit Seven Segment LED Display

The 0.40 inch 4-digit seven segment LED display offers distinctive features that set it apart:

  • High Visibility: Each segment includes an LED, ensuring clear visibility even from different angles and in various light conditions.
  • Compact Footprint: The small size of the display makes it ideal for applications where space is limited but information delivery is crucial.
  • Multiplexing Capability: The 7 seg display can be multiplexed to show more information using fewer I/O ports, a feature detailed in the 4 digit seven segment display datasheet.

Applications Spanning Various Industries

Due to its versatility, the 7 seg display is used across multiple sectors:

  • Consumer Electronics: In products like microwave ovens, digital clocks, and calculators.
  • Automotive: For dashboard displays that provide readouts of time, temperature, and other critical vehicle statistics.
  • Healthcare: In devices where precise data display is critical, such as blood glucose monitors and infusion pumps.

Benefits of Implementing 0.40 Inch 4-Digit Displays

The implementation of these displays offers several advantages:

  • Energy Efficiency: LEDs are well-known for their low power consumption, which extends the battery life of portable devices.
  • Ease of Integration: The availability of detailed datasheets, like the 4 digit 7 segment display 12 pin datasheet, simplifies the development process.
  • Cost Effectiveness: Due to their longevity and low maintenance requirements, these displays provide a cost-effective solution for mass-produced electronics.

Case Studies Highlighting Effective Use

Case Study 1: Automotive Dashboard Displays

A major automotive manufacturer integrated the 0.40 inch 4-digit seven segment LED display into its new model dashboards, resulting in enhanced legibility of critical vehicle stats, which was positively received by customers for improving driving safety and comfort.

Case Study 2: Consumer Electronic Devices

A renowned manufacturer of household appliances incorporated the 7 seg display into their range of kitchen timers, significantly reducing user errors due to the display’s clear readability.

User Testimonials

  • Elena Rodriguez, Electrical Engineer: “The detailed information from the 4 digit seven segment display datasheet made integration straightforward, enhancing our product’s user interface significantly.”
  • Tom Chen, Product Manager: “Opting for the 0.40 inch display was a game-changer for our digital devices, improving both aesthetic and functional aspects.”

Conclusion

The 0.40 inch 4-digit seven segment LED display stands out as an essential component for modern electronic devices, offering unmatched clarity and flexibility. Its application in various industries underscores its utility and efficiency, making it a preferred choice for designers and engineers.

Call to Action: Elevate your electronic projects with the high-quality and versatile 0.40 inch 4-digit seven segment LED display. Contact us today to explore how these displays can enhance your product offerings!

0.40 inch 4-digit seven segment led display
0.40 inch 4-digit seven segment led display

Features

  • 0.40-Inch Digit Height (10.16mm): Provides clear visibility for numeric displays, ideal for applications requiring small, easily readable digits.
  • Dimensions (Width x Height): 39.5x 18mm: Its compact size makes it suitable for various applications where space efficiency is important.
  • Low Current Operation: Energy-efficient, making it suitable for both battery-powered and low-power electronic devices.
  • Common Anode and Cathode Options: Offers flexibility in circuit design, accommodating different electrical configurations.
  • Excellent Character Appearance: Ensures digits are displayed clearly and legibly, enhancing readability.
  • High Light Output: Bright enough for easy reading under various lighting conditions.
  • Easy Mounting on PC Boards or Sockets: Designed for straightforward installation, facilitating efficient integration into electronic systems.
  • IC Compatible: Can be integrated with integrated circuits, making it suitable for complex electronic designs.
  • Multicolor Availability: Provides options for different colors, adding versatility in design and functional use.
  • Categorized for Luminous Intensity: Ensures consistent brightness levels across units, important for uniform display quality.
  • Technically Rugged: Durable and reliable, capable of withstanding various operational environments.
  • Standard Design: Gray Surface, White Segment: Provides a classic look with high contrast for ease of reading.
  • RoHS Compliance: Meets environmental standards, adhering to regulations that restrict hazardous substances.

Applications

  • Industrial Control Panels: Suitable for use in industrial environments where clear, multi-digit numeric displays are necessary for monitoring and control.
  • Public Information Displays: Ideal for transportation stations, public squares, or event venues where clear, multi-digit displays are needed.
  • Consumer Electronics: Appropriate for household appliances and entertainment systems requiring multiple numeric displays.
  • Telecommunication Equipment: Can be used in networking devices for displaying numerical information like channel numbers or signal strength.
  • Retail and Point of Sale Systems: Effective in displaying prices, quantities, or codes in retail environments.
  • Healthcare Equipment: Useful in medical devices for showing various numerical data such as patient vitals or timer settings.
  • Automotive Displays: Suitable for vehicle dashboards to display information like temperature, speed, or fuel levels.
  • Fitness Equipment: Ideal for gym machines, showing workout data such as time, speed, or calorie count.
  • Educational Tools: Used in educational settings for timers or displaying experiment data.
  • Safety and Emergency Equipment: Suitable for safety systems displaying critical numerical information.
Electrical-optical characteristics:
Filters Sort results
Reset Apply
Part No. (Cathode)
Part No. (Anode)
Emitting Color
Material
Peak Wavelength (nm)
Voltage typ.(v)
Voltage max. (v)
Luminous min
Luminous typ
BL-Q40A-43B
BL-Q40B-43B
ultra Blue
InGaN/SiC
470
4.2
65
100
BL-Q40A-43D
BL-Q40B-43D
Super Red
GaAlAs/DH
660
2.2
75
115
BL-Q40A-43E
BL-Q40B-43E
Orange
GaAsP/GaP
635
2.5
80
115
BL-Q40A-43G
BL-Q40B-43G
Green
GaP/GaP
570
2.5
85
120
BL-Q40A-43H
BL-Q40B-43H
Red
GaP/GaP
700
2.6
8
10.5
BL-Q40A-43PG
BL-Q40B-43PG
Ultra Pure Green
InGaN/SiC
525
4.2
110
195
BL-Q40A-43S
BL-Q40B-43S
Hi Red
GaAlAs/SH
660
2.2
80
105
BL-Q40A-43UB
BL-Q40B-43UB
ultra Blue
InGaN/SiC
470
4.2
80
125
BL-Q40A-43UE
BL-Q40B-43UE
Ultra Orange
AlGaInP
630
2.5
96
140
BL-Q40A-43UG
BL-Q40B-43UG
Ultra Green
AlGaInP
574
2.5
96
140
BL-Q40A-43UR
BL-Q40B-43UR
Ultra Red
GaAlAs/DDH
660
2.2
105
160
BL-Q40A-43UY
BL-Q40B-43UY
Ultra Yellow
AlGaInP
590
2.5
85
135
BL-Q40A-43W
BL-Q40B-43W
Ultra White
InGaN
-
4.2
160
BL-Q40A-43Y
BL-Q40B-43Y
Yellow
GaAsP/GaP
585
2.5
80
115
Package configuration & Internal circuit diagram
0.40 inch 4-digit seven segment led display


All dimensions are in millimeters(inches)
Tolerance is +-0.25(0.01″) unless otherwise note
Specifications are subject to change without notice.

Partno description:

LED seven segment , called also LED numeric display, is widely applied in home appliance panel display and other application.

Part No of Seven segment LED display

More information

Reflector Surface color (1st number)/ Segment Lens color (2nd number):

Number012345
Ref Surface ColorWhiteBlackGrayRedGreen 
Epoxy ColorWater clearWhite diffusedRed DiffusedGreen DiffusedYellow Diffused 

Absolute maximum ratings (Ta= 25°C)

Parameter SDUREYGUnit
Forward Current IF 252525252530mA
Power Dissipation Pd 606060606065mW
Reverse Voltage VR 555555V
Peak Forward Current IPF (Duty 1/10 @1KHZ) 150150150150150150mA
Operation Temperature TOPR-40 to +80°C
Storage Temperature TSTG-40 to +85°C
Lead Soldering Temperature TSOL  Max.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb)°C

Absolute maximum ratings (Ta= 25°C)

ParameterUHRUEYOUYUGPGUBUWUnit
Forward Current IF3030303030303030mA
Power Dissipation Pd7565656575110120120mW
Reverse Voltage VR55555555V
Peak Forward Current IPF (Duty 1/10 @1KHZ)150150150150150150100100mA
Operation Temperature TOPR-40 to +80°C
Storage Temperature TSTG-40 to +85°C
Lead Soldering Temperature TSOLMax.260+ 5°C for 3 sec Max. ( 1.6mm from the base of the epoxy bulb)°C
Related Information

Applied for:
dvd player radio train instrument refrigerator

1. Application
The Seven Segment LED is widely applied for ordinary electronic equipment (such as office equipment,
communication equipment and household applications). Checking with BETLUX’s Sales in
advance for information on applications in which exceptional reliability is required, particularly
when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in
aviation, transportation, traffic control equipment, medical and life support systems and safety
devices).

2. Storage
The storage ambient for the Seven Segment LED should not exceed 30℃ temperature or 70% relative humidity.
For extended storage out of their original packaging, it is recommended that the Seven Segment LEDs be stored
in a sealed container with appropriate desiccant, or in a desiccator with nitrogen ambient.

3. Cleaning
Avoid using any unspecified chemical solvent to clean LED . For example, Trichloroethylene, Chlorosen, Acetone, and Diflon S3MC.
Any cleaning method can only be taken under normal temperature in one minute or less if it is required.
Use water to clean the Seven Segment LED if necessary under room temperature
dry it immediately after that.

4.Forming
Any unsuitable stress applied to the epoxy may break bonding wires in LED
Any forming on lead pin must be done before soldering, not during or after soldering.
Avoid applying any stress to resin in order to prevent the epoxy fracture and break on bonding wire.
While forming, please use a tie bar cut or equivalent to hold or bend the pin.
2mm from the base of resin is the minimum distance for the place bending the lead pin.
Avoid bending the lead pin at the same point twice or more.

seven segment display forming caution

Soldering

When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:

 

IR Reflow Soldering (for SMD display)Wave SolderingSoldering Iron
Pre-Heat150-180°CPre-Heat100°C Max.Temperature300°C Max.
Pre-Heat Time120sec Max.Pre-Heat Time60sec Max.
Peak Temperature260°C Max.SolderWave260°C Max.Soldering Time3sec Max.(one time only)
Soldering Time10 sec Max.Soldering Time5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD(Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD (Electrostatic Discharge):

n Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

n All devices, equipment, and machinery must be properly grounded

n Work tables, storage racks, etc. should be properly grounded

n Use ion blower to neutralize the static charge which might have built up on surface of the LED’s

 plastic lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, 

low forward voltage, or “no light on” at low currents. To verify for ESD damage, check for “light on” 

and Vf of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP

 product.

antistatic notice-smd led

LED dirve IC by  Maxim Integrated

 MAX6959  4½-Digit LED Display Driver

 MAX6958  4½-Digit LED Display Driver

 MAX6955  7-, 14-, 16-Segment LED Display Driver

 MAX6956  LED Static Display Driver and I/O Port

 MAX6954  7-, 14-, 16-Segment LED Display Driver

 MAX6952  5 x 7 Matrix LED Display Driver

 MAX6957  LED Static Display Driver and I/O Port

MAX6950  5-Digit LED Display Driver

 MAX6951  8-Digit LED Display Driver

 ICM7212  4-Digit LED Driver

 ICM7212A  4-Digit LED Driver

 ICM7212AM  4-Digit LED Driver

 ICM7212M  4-Digit LED Driver

 ICM7218A  8-Digit LED Driver

 ICM7218B  8-Digit LED Driver

 ICM7218C  8-Digit LED Driver

 ICM7218D  8-Digit LED Driver

 MAX7221  8-Digit LED Display Driver

 MAX7219  8-Digit LED Display Driver

 provide in-depth design and IC selection help for design engineers.  Each solution is dedicated to a popular end-equipment type and features design information, circuits and a block diagram.   Within a block diagram, click on a block to view best-fit integrated circuits recommended by Maxim engineers.

When selecting power for LED systems, it’s essential to understand several key parameters to ensure safe operation, longevity, and optimal performance. Here are some steps and considerations for LED power selection:

  • Determine the Forward Voltage (Vf) of the LED(s):

Each LED has a forward voltage, which is the voltage at which the LED operates when the current is flowing through it. This value can typically be found in the LED’s datasheet.

  • Determine the Forward Current (If) of the LED(s):

The forward current is the current at which the LED is designed to operate. Running an LED at higher than its rated current can reduce its lifespan and increase the heat it produces.

  • Decide on the Configuration:

Series Configuration: When LEDs are connected in series, the forward voltages add up, but the current remains the same.

Parallel Configuration: When LEDs are connected in parallel, the forward voltage remains the same, but the currents add up. This configuration can be risky because if one LED fails or has a slightly lower forward voltage, it can cause the other LEDs to draw more current.

Calculate Total Power Requirements:

Power (W) = Total Forward Voltage (V) x Total Forward Current (A)

For example, if you have three LEDs connected in series, each with a forward voltage of 3V and a forward current of 20mA, the total power requirement would be:

Power = (3V + 3V + 3V) x 20mA = 9V x 0.02A = 0.18W

  • Select an Appropriate Power Supply:
  • Voltage Rating: The power supply voltage should match or slightly exceed the total forward voltage of your LED configuration.
  • Current Rating: The power supply’s current rating should meet or exceed the total forward current of your LED configuration.
  • Safety Margin: It’s a good practice to select a power supply that can provide at least 20% more power than your calculated requirement. This ensures the power supply isn’t operating at its maximum capacity, which can extend its life and ensure safer operation.
  • Consider Additional Features:
  • Dimming Capability: If you want to control the brightness of your LEDs, choose a power supply with dimming capabilities.
  • Overcurrent and Overvoltage Protection: To protect your LEDs, select a power supply with built-in protection mechanisms.
  • Thermal Management: Ensure that the power supply has adequate cooling, especially if it will be enclosed or in a location with limited airflow.
  • Regulation and Efficiency:A power supply with good regulation will maintain a consistent voltage output despite variations in the load. High efficiency ensures minimal power is wasted as heat.
  • Physical Size and Form Factor:Depending on where you plan to place the power supply, its size and shape may be critical factors.

In summary, when selecting power for LED systems, understanding your LED’s requirements and the configuration you plan to use is essential. Then, pick a power supply that meets those needs with some added safety margin, keeping in mind any additional features or constraints relevant to your project.

Here are some well-regarded brands in the industry:

  • Mean Well: One of the most recognized brands in the LED power supply industry, Mean Well offers a wide range of products suitable for both indoor and outdoor applications. Their units often come with features like overcurrent protection, dimming capabilities, and high efficiency.
  • Tridonic: A global leader in lighting technology, Tridonic offers LED drivers and power supplies that cater to various lighting solutions, from simple setups to advanced smart lighting systems.
  • Philips Advance Xitanium: Philips is a well-known brand in the lighting industry, and their Xitanium series of LED drivers are known for reliability and performance. They cater to both indoor and outdoor LED applications.
  • Osram: Another giant in the lighting industry, Osram offers a range of LED drivers and power supplies suitable for various applications, including architectural and street lighting.
  • LIFUD: Specializing in LED drivers, LIFUD is known for its high-quality products that cater to both commercial and residential LED lighting solutions.
  • MOSO: This brand offers a variety of LED drivers, especially for outdoor and industrial applications. Their products are known for durability and performance.
  • TDK-Lambda: With a history in power electronics, TDK-Lambda offers a range of power supplies and LED drivers suitable for various applications, emphasizing reliability and advanced features.
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