Kingbright PSC39-21EWA: High Efficiency Red Alphanumeric Display

The Kingbright PSC39-21EWA is a high efficiency red alphanumeric display designed for a wide range of applications requiring clear and robust visual output. With its GaAsP/GaP material, it offers superior performance in various lighting conditions.

Features:

0.39 inch character height for easy readability
Low current operation for energy efficiency
High contrast and light output for visibility
Easy mounting on PC boards or sockets
Mechanically rugged for durability
Standard gray face with white segment for clear display
RoHS compliant for environmental sustainability
Applications:

Home and smart appliances for status indication
Display time and digital combination in clocks and timers
Industrial and instrumental applications for reliable operation
Numeric status displays in various devices
Package Dimensions:

9.9 mm (0.39 inch) 14 Segment Single Digit Alphanumeric Display
All dimensions are in millimeters (inches), with a tolerance of ±0.25 (0.01") unless otherwise noted.
Technical Specifications:

Power Dissipation (PD): 75 mW
Reverse Voltage (VR): 5 V
Junction Temperature (Tj): 125 °C
Operating Temperature (Top): -40 to +85 °C
Storage Temperature (Tstg): -40 to +85 °C
DC Forward Current (IF): 30 mA
Peak Forward Current (IFM): 160 mA
Electrostatic Discharge Threshold (HBM): 8000 V
Lead Solder Temperature: 260°C for 3-5 Seconds
Optical Characteristics:

Wavelength at Peak Emission (IF = 10mA): 627 nm
Dominant Wavelength (IF = 10mA): 617 nm
Spectral Bandwidth at 50%: 45 nm
Capacitance: 15 pF
Forward Voltage (IF = 10mA): 1.9 to 2.3 V
Reverse Current (VR = 5V): - 10 µA
Technical Data:

The PSC39-21EWA provides a detailed graph of Relative Intensity vs. Wavelength, Forward Current vs. Forward Voltage, Luminous Intensity vs. Forward Current, and Forward Current Derating Curve Luminous Intensity vs. Ambient Temperature.
Soldering and Cleaning:

Through-hole displays are incompatible with reflow soldering.
Mild "no-clean" fluxes are recommended for soldering.
If cleaning is required, components should be washed with water only, avoiding harsh organic solvents.
The cleaning process should take place at room temperature, and devices should not be washed for more than one minute.
Precautionary Notes:

The information in this document is intended for technical reference only.
Specifications are subject to change without notice. Customers should refer to the latest datasheet for updated specifications.
Products should be operated within the environmental and electrical limits specified in the datasheet.
For special applications or processes, consult with Kingbright for further assistance.
Packaging & Label Specifications:

Through Hole Display Mounting Method and Lead Forming instructions are provided to ensure proper installation and to avoid damage.
Circuit Design Notes:

Protective current-limiting resistors may be necessary.
LEDs mounted in parallel should each have their own current-limiting resistor.
The driving circuit should protect the LED against reverse voltages and transient voltage spikes.