SC40-18SURKWA: Hyper Red Single Digit Numeric Display

The SC40-18SURKWA numeric display is designed for high-visibility applications that require a large digit size and clear character appearance with a hyper red light source.

Features:

Large size with a 4.0-inch digit height.
Low current operation for energy efficiency.
Excellent character appearance for easy readability.
High light output for superior brightness.
Easy mounting on PC boards or sockets for versatile installation.
Mechanically rugged for durability in various environments.
Standard gray face with white segment for high contrast visibility.
RoHS compliant for environmental sustainability.
Applications:

Home and smart appliances.
Display time and digital combinations.
Industrial and instrumental applications.
Numeric status indicators.
Technical Specifications:

Luminance: The SC40-18SURKWA offers a luminous intensity of 88000 to 250000 mcd, ensuring it is visible in various lighting conditions.
Wavelength: The peak wavelength is at 645 nm, providing a hyper red color.
Forward Voltage: Operates at a forward voltage of 7.4 to 9.4 V for segment and 3.7 to 4.7 V for DP at 10mA.
Reverse Current: Features a low reverse current of 10 µA at 5V per chip.
Capacitance: The display has a capacitance of 35 pF.
Power Dissipation: Can handle up to 75 mW per chip.
Operating/Storage Temperature: Suitable for a wide range of temperatures from -40°C to +85°C.
Lead Solder Temperature: Withstands 260°C for 3-5 seconds.
Selection Guide:
The SC40-18SURKWA is available with a white diffused lens, providing a common cathode, right-hand decimal point configuration. The luminous intensity and luminous flux are within +/-15% tolerance, traceable to CIE127-2007 standards.

Absolute Maximum Ratings:

DC Forward Current: Segment: 60 mA, DP: 30 mA.
Peak Forward Current: Segment: 370 mA, DP: 185 mA.
Reverse Voltage: 5 V per chip.
Electrical/Optical Characteristics:

Peak Wavelength: 645 nm at 10 mA.
Dominant Wavelength: 630 nm at 10 mA.
Spectral Bandwidth at 50%: 28 nm at 10 mA.
Circuit Design Notes:

Protective current-limiting resistors may be necessary.
LEDs in parallel should each have their own current-limiting resistor.
Design the circuit to protect against reverse voltages and transient spikes.
Mounting Method:

Do not bend component leads by hand without proper tools.
Ensure terminal pitch matches the substrate board's hole pitch.
Place component at least 5mm from edge of PCB to avoid damage during soldering.
Recommended Solder Profile:

Pre-heat temperature of 105°C or less.
Peak wave soldering temperature between 245°C and 255°C for 3 seconds (max 5 seconds).
Do not apply stress to the epoxy resin above 85°C.
Packing & Label Specifications:
The SC40-18SURKWA is carefully packaged to ensure safe delivery and meets specific labeling standards for quality assurance.

Precautionary Notes:

Handle with care to avoid electrostatic discharge damage.
Refer to the latest datasheet for updated specifications before production.
Operate within the environmental and electrical limits specified in the datasheet.