SMLD12E3N1W
Long Life Type Mini-mold Chip LED

SMLD12E3N1W has a long life and the residual luminous rate exceeds 90% even after 1000 hours (under Ta=85℃,IF=20mA).

Product Detail

 
Part Number | SMLD12E3N1WT86
Status | Recommended
Package | SML-D12
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes

Specifications:

Package Type

Mini-mold

LED Type

Long Life

Package size[mm]

1.6x0.8 (t=0.55)

Emitting color

Bluish-Green

Luminous Intensity(Single)(Typ.)[mcd]

85.0

Number of Brightness Rank

2

Dominant wave-length λD(Single)(Typ.)[nm]

496.0

Forward Voltage VF (Typ.) [V]

2.9

IF @ VF [mA]

5

Chip Structure

InGaN

Power Dissipation [mW]

66

Operating Temperature[°C]

-40 to +100

Storage Temperature [°C]

-40 to +100

Features:

  • Long life exceeding 90% residual luminous rate even after 1,000hrs (Ta=85℃,IF=20mA)
  • 1608 (0603) size small package

Supporting Information

 

Overview

Color is considered to be one of the most important means of communication and as such is used in a variety of ways – daily. However, approximately over 200 million people with P-type and D-type color deficiencies around the world find it difficult to distinguish between red and green, possibly resulting in information being inaccurately conveyed – depending on the combination of colors used. Furthermore, since color vision can vary from person to person, it is difficult to perceive how different people see certain colors, which can be very inconvenient and also problematic as other people may not notice this deficiency.

As a result, there is a growing need in the society to implement Color Universal Design that takes into account the various types of color vision in order to deliver information accurately to as many people as possible. ROHM succeeded in developing blue-green chip LEDs with special wavelengths. These products are ideal for implementing Color Universal Design in a wide range of devices, utilizing a vertically integrated production system from the element fabrication stage and leveraging ROHM’s strength thorough quality control.

Key Features

Key Features 1.ROHM’s special wavelength blue-green LEDs – ideal for color universal design applications

While there are a variety of devices that transmit information using red and green colors, adopting blue-green and orange or yellow will make it easier for people with P-type or D-type color deficiency and difficulty to distinguish red and green colors. As such, the color scheme is important for conveying information using LEDs.

Now, by acquiring Color Universal Design certification for ROHM’s SMLD12E2N1W and SMLD12E3N1W blue-green LEDs, it is possible for people with various types of color vision and sensitivities to accurately identify color patterns that include the use of ROHM’s blue LED (SMLD12BN1WT86, λD: 470nm) and warm color LEDs (SML-D15YW, λD: 590nm; SML-D15DW, λD: 605nm) – making them ideal for Color Universal Design applications.

Optimum Color Scheme for Color Universal Design Applications

Key Features 2. Adopts a new resin while ensuring high reliability

SThe SMLD12 series (SMLD12E2N1W and SMLD12E3N1W) utilizes a new resin that improves on the following issues when using conventional epoxy and silicone resins, allowing worry-free use in devices requiring high reliability.

1)20x longer life vs. epoxy resin

Luminous intensity is maintained even during endurance testing (25°C, IF=20mA, 1,000hrs), resulting in approx. 20x longer life at the same residual light intensity level vs epoxy resin products.

Endurance Test Results

2)25x higher mold strength compared to silicone resin

Adopting a new resin material which affects mountability improves mold strength by 25x compared to silicone resin products even at high temperatures (Ta=150°C). This minimizes defects during mounting, achieving superior mountability.

Mold Strength Measurement Results

Application Examples

  • Operating panel indicator lights for fire alarm systems, etc.
  • Safety warning lamps in industrial equipment
  • Information boards for public transportation facilities
  • Parking lot occupancy (empty/full) indicator lamps
  • Battery charge status indicators
  • Display panels for hospital equipment (i.e. nurse calls) and more...

Terminology

P-Type / D-Type Colorblind
CUDO classifies the differences in color vision into the following 5 types.

Designation Description
C-Type (Common) A person with normal color vision who has all three types of photoreceptor cone cells: red, green, and blue
P-Type (Protanopia) Strong: No or non-functioning cone cells for detecting red light
Weak: Red cone cells with spectral sensitivity shifted towards green cone cells
D-Type (Deuteranopia) Strong: No or non-functioning cone cells for detecting green light
Weak: Green cone cells with spectral sensitivity shifted towards red cone cells
T-Type (Tritanopia) No cone cells for primarily detecting blue light; functionally weak
A-Type (Achromatopia) Only has one type of cone cell, no cone cells at all, or all cells are weak

Color Universal Design
A design system developed in consideration of people with various types of color vision – allowing information to be accurately conveyed to as many individuals as possible

Design Resources

 

Documents

White Paper

  • ROHM Automotive Lighting Solutions

Technical Articles

Schematic Design & Verification

  • About LED Devices
  • How to read LED characteristics data
  • About LED Package
  • About LED Parallel Circuits
  • Relationship between Recommended LED Soldering Pattern and Solder Amount
  • Electrostatic Breakdown of LEDs
  • Chromaticity Classification of LEDs in RGB Color Mixing
  • Degradation of luminous intensity of blue and white products due to long-term use of LEDs
  • Relationship between LED Chip Position and Directivity
  • About LED Optical Unit
  • The relationship between LED luminous intensity and luminous flux
  • LED Manual

Thermal Design

  • Thermal Resistance of LEDs

Tools

Models

  • SMLD12E3N1W SPICE Model
  • SMLD12E3N1W Ray Data

2D/3D/CAD

  • SMLD12E3N1W 3D STEP Data
  • Parasolid X_T File
  • 3D eDrawings Data

Characteristics Data

  • Electrical Static Discharge (ESD)

Packaging & Quality

Manufacturing Data

  • Reliability Test Result
  • Factory Information

Environmental Data

  • About Flammability of Materials
  • Compliance of the ELV directive
  • MSDS
  • About Non-use SVHC under Reach Regulation : Please contact us by filling in the form.
  • Compliance of the RoHS / ELV directive

Export Information

  • About Export Regulations