SA40-18SRWA

SA40-18SRWA 101.2 mm (4.0 inch) Single Digit Numeric Display DESCRIPTIONS



PACKAGE DIMENSIONS The Super Bright Red source color devices are made with Gallium Aluminum Arsenide Red Light Emitting Diode Electrostatic discharge and power surge could damage the LEDs It is recommended to use a wrist band or anti-electrostatic glove when handling the LEDs All devices, equipments and machineries must be electrically grounded FEATURES








Large size 4.0 inch digit height Low current operation Excellent character appearance High light output Easy mounting on P.C. boards or sockets Mechanically rugged Standard: gray face, white segment RoHS compliant APPLICATIONS



Home and smart appliances Display time and digital combination Industrial and instrumental applications Numeric status ATTENTION Observe precautions for handling electrostatic discharge sensitive devices Notes: 1. All dimensions are in millimeters (inches), Tolerance is ±0.25(0.01")unless otherwise noted. 2. The specifications, characteristics and technical data described in the datasheet are subject to change without prior notice. SELECTION GUIDE Part Number SA40-18SRWA Emitting Color (Material) ■ Super Bright Red Iv (ucd) @ 10mA [1] Lens Type Description Min. Typ. 52000 120000 Common Anode, Rt. Hand Decimal White Diffused (GaAlAs) *14000 *29000 Notes: 1. Luminous intensity / luminous flux: +/-15%. * Luminous intensity value is traceable to CIE127-2007 standards. © 2020 Kingbright. All Rights Reserved. Spec No: DSAP8365 / 1301000438 Rev No: V.1A Date: 03/09/2020 Page 1 / 5 SA40-18SRWA ELECTRICAL / OPTICAL CHARACTERISTICS at TA=25°C Value Parameter Symbol Wavelength at Peak Emission IF = 10mA Emitting Color Unit Typ. Max. λpeak Super Bright Red 655 - nm λdom [1] Super Bright Red 640 - nm Spectral Bandwidth at 50% Φ REL MAX IF = 10mA ∆λ Super Bright Red 20 - nm Capacitance C Super Bright Red 45 - pF Forward Voltage IF = 20mA (Segment) Forward Voltage IF = 10mA (DP) VF [2] Super Bright Red 7.2 3.6 9.2 4.6 V Reverse Current (VR = 5V) (Per chip) IR Super Bright Red - 10 µA Dominant Wavelength IF = 10mA (DP) Notes: 1. The dominant wavelength (λd) above is the setup value of the sorting machine. (Tolerance λd : ±1nm. ) 2. Forward voltage: ±0.1V. 3. Wavelength value is traceable to CIE127-2007 standards. 4. Excess driving current and / or operating temperature higher than recommended conditions may result in severe light degradation or premature failure. ABSOLUTE MAXIMUM RATINGS at TA=25°C Parameter Symbol Value Unit Power Dissipation (Per chip) PD 75 mW Reverse Voltage (Per chip) VR 5 V Junction Temperature Tj 115 °C Operating Temperature Top -40 to +85 °C Storage Temperature Tstg -40 to +85 °C IF 60 30 mA IFM [1] 310 155 mA - 3000 V DC Forward Current (Segment) DC Forward Current (DP) Peak Forward Current (Segment) Peak Forward Current (DP) Electrostatic Discharge Threshold (HBM) Lead Solder Temperature [2] 260°C For 3-5 Seconds Notes: 1. 1/10 Duty Cycle, 0.1ms Pulse Width. 2. 2mm below package base. 3. Relative humidity levels maintained between 40% and 60% in production area are recommended to avoid the build-up of static electricity – Ref JEDEC/JESD625-A and JEDEC/J-STD-033. © 2020 Kingbright. All Rights Reserved. Spec No: DSAP8365 / 1301000438 Rev No: V.1A Date: 03/09/2020 Page 2 / 5 SA40-18SRWA TECHNICAL DATA RELATIVE INTENSITY vs. WAVELENGTH Red Relative Intensity (a. u.) 100% Ta = 25 °C 80% 60% 40% 20% 0% 350 400 450 500 550 600 Wavelength (nm) 650 700 750 800 SUPER BRIGHT RED (SEGMENT) Ta = 25 °C 40 30 20 10 0 7.0 10.0 Permissible forward current (mA) Luminous intensity normalised at 10 mA Forward current (mA) 60 50 Forward Current Derating Curve Luminous Intensity vs. Forward Current Ta = 25 °C 8.0 6.0 4.0 2.0 0.0 7.1 7.2 7.3 7.4 Forward voltage (V) 7.5 0 20 40 60 80 Forward current (mA) 100 2.5 80 2.0 60 1.5 40 1.0 20 0.5 0 100 Luminous Intensity vs. Ambient Temperature Luminous intensity normalised at Ta = 25 °C Forward Current vs. Forward Voltage 0.0 -40 -20 0 20 40 60 80 100 Ambient temperature (°C) -40 -20 0 20 40 60 80 100 Ambient temperature (°C) SUPER BRIGHT RED (DP) Forward current (mA) Ta = 25 °C 16 12 8 4 5.0 Permissible forward current (mA) Luminous intensity normalised at 10 mA 20 0 3.4 Forward Current Derating Curve Luminous Intensity vs. Forward Current Ta = 25 °C 4.0 3.0 2.0 1.0 0.0 3.5 3.6 3.7 3.8 Forward voltage (V) 3.9 0 10 20 30 40 Forward current (mA) 50 © 2020 Kingbright. All Rights Reserved. Spec No: DSAP8365 / 1301000438 Rev No: V.1A Date: 03/09/2020 50 Luminous Intensity vs. Ambient Temperature 2.5 Luminous intensity normalised at Ta = 25 °C Forward Current vs. Forward Voltage 40 2.0 30 1.5 20 1.0 10 0.5 0 0.0 -40 -20 0 20 40 60 80 100 Ambient temperature (°C) -40 -20 0 20 40 60 80 100 Ambient temperature (°C) Page 3 / 5 SA40-18SRWA RECOMMENDED WAVE SOLDERING PROFILE Soldering General Notes 1. Through-hole displays are incompatible with reflow soldering. 2. If components will undergo multiple soldering processes, or other processes where the components may be subjected to intense heat, please check with Kingbright for compatibility. CLEANING Notes: 1. Recommend pre-heat temperature of 105°C or less (as measured with a thermocouple attached to the LED pins) prior to immersion in the solder wave with a maximum solder bath temperature of 260°C 2. Peak wave soldering temperature between 245°C ~ 255°Cfor 3 sec (5 sec max). 3. Do not apply stress to the epoxy resin while the temperature is above 85°C. 4. Fixtures should not incur stress on the component when mounting and during soldering process. 5. SAC 305 solder alloy is recommended. 6. No more than one wave soldering pass. 7. During wave soldering, the PCB top-surface temperature should be kept below 105°C. 1. Mild "no-clean" fluxes are recommended for use in soldering. 2. If cleaning is required, Kingbright recommends to wash components with water only. Do not use harsh organic solvents for cleaning because they may damage the plastic parts . 3. The cleaning process should take place at room temperature and the devices should not be washed for more than one minute. 4. When water is used in the cleaning process, Immediately remove excess moisture from the component with forced-air drying afterwards. THROUGH HOLE DISPLAY MOUNTING METHOD Lead Forming 1. Do not bend the component leads by hand without proper tools. The leads should be bent by clinching the upper part of the lead firmly such that the bending force is not exerted on the plastic body. Installation 1. The installation process should not apply stress to the lead terminals. 2. When inserting for assembly, ensure the terminal pitch matches the substrate board's hole pitch to prevent spreading or pinching the lead terminals. (Fig.1) 3. The component shall be placed at least 5mm from edge of PCB to avoid damage caused excessive heat during wave soldering.(Fig.2) CIRCUIT DESIGN NOTES 1. Protective current-limiting resistors may be necessary to operate the LEDs within the specified range. 2. LEDs mounted in parallel should each be placed in series with its own current-limiting resistor.(Fig.3) 3. The driving circuit should be designed to protect the LED against reverse voltages and transient voltage spikes when the circuit is powered up or shut down. 4. The safe operating current should be chosen after considering the maximum ambient temperature of the operating environment. 5. Prolonged reverse bias should be avoided, as it could cause metal migration, leading to an increase in leakage current or causing a short circuit. © 2020 Kingbright. All Rights Reserved. Spec No: DSAP8365 / 1301000438 Rev No: V.1A Date: 03/09/2020 Page 4 / 5 SA40-18SRWA PACKING & LABEL SPECIFICATIONS PRECAUTIONARY NOTES 1. The information included in this document reflects representative usage scenarios and is intended for technical reference only. 2. The part number, type, and specifications mentioned in this document are subject to future change and improvement without notice. Before production usage customer should refer to the latest datasheet for the updated specifications. 3. When using the products referenced in this document, please make sure the product is being operated within the environmental and electrical limits specified in the datasheet. If customer usage exceeds the specified limits, Kingbright will not be responsible for any subsequent issues. 4. The information in this document applies to typical usage in consumer electronics applications. If customer's application has special reliability requirements or have life-threatening liabilities, such as automotive or medical usage, please consult with Kingbright representative for further assistance. 5. The contents and information of this document may not be reproduced or re-transmitted without permission by Kingbright. 6. When any special process such as potting is required for LED assembly, please consult with Kingbright representative before proceeding. 7. All design applications should refer to Kingbright application notes available at https://www.KingbrightUSA.com/ApplicationNotes © 2020 Kingbright. All Rights Reserved. Spec No: DSAP8365 / 1301000438 Rev No: V.1A Date: 03/09/2020 Page 5 / 5