# LTC-4727JR LED Display

## Features

️· 0.4 inch (10.0 mm) digit height
️· Continuous uniform segments
️· Low power requirement
️· Excellent character appearance
️· High brightness & high contrast
️· Wide viewing angle
️· Solid-state reliability
️· Categorized for luminous intensity

## Description

️· Quadruple digit seven-segment display
️· Utilizes AlInGaP super red LED chips on a GaAs substrate
️· Gray face and white segments

## Device Specifications

️· Part No.: LTC-4727JR (Right-hand decimal)
️· Description: AlInGaP Super Red Multiplex Common Cathode

## Pin Connection

️· 1: Common Cathode Digit 1
️· 2: Common Cathode Digit 2
️· 3: Anode D
️· 4: Common Cathode L1, L2, L3
️· 5: Anode E
️· 6: Common Cathode Digit 3
️· 7: Anode DP
️· 8: Common Cathode Digit 4
️· 9: No Connection
️· 10: No Pin
️· 11: Anode F
️· 12: No Pin
️· 13: Anode C, L3
️· 14: Anode A, L1
️· 15: Anode G
️· 16: Anode B, L2

## Absolute Maximum Ratings (Ta=25°C)

️· Power Dissipation Per Segment: 70 mW
️· Peak Forward Current Per Segment (1/10 Duty Cycle, 0.1ms Pulse Width): 90 mA
️· Continuous Forward Current Per Segment: 25 mA
️· Derating: 0.33 mA/°C
️· Reverse Voltage Per Segment: 5 V
️· Operating Temperature Range: -35°C to +85°C
️· Storage Temperature Range: -35°C to +85°C
️· Solder Temperature: 260°C (max 3 seconds)

## Electrical/Optical Characteristics (Ta=25°C)

️· Average Luminous Intensity (IV): 320-975 µcd (IF=1mA)
️· Peak Emission Wavelength (λp): 639 nm (IF=20mA)
️· Spectral Line Half-Width (Δλ): 20 nm (IF=20mA)
️· Dominant Wavelength (λd): 631 nm (IF=20mA)
️· Forward Voltage (VF): 2.0 - 2.6 V (IF=20mA)
️· Reverse Current (IR): 100 µA (VR=5V)
️· Luminous Intensity Matching Ratio (IV-m): 2:1 (IF=1mA)