Current DC (ma) Storage Temp. ( C) Red 1.85 Vdc D. Voltage Vac/dc

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1 features specifications Ø8.1mm mounting Black anodised aluminium housing Sealed to IP67 Wide viewing angle Suitable for high vibration applications Internal reverse protection diode fitted as standard Smoked lens for high on/ off contrast ratio Pack Quantity = 1 Pieces Typical characteristics (Ta = 2 C) RS Marl Vac/dc Current DC (ma) Luminous Intensity (mcd) Wave Length (nm) Operating Temp. ( C) Storage Temp. ( C) Red 1.8 Vdc D Red -6 Vdc D Red 12 Vdc D Red 24 Vdc D Red 28 Vdc D Yellow 2.2 Vdc D Yellow -6 Vdc D Yellow 12 Vdc D Yellow 24 Vdc D Green 3.2 Vdc F Green -6 Vdc F Green 12 Vdc F Green 24 Vdc F Green 28 Vdc F Blue 12 Vdc U Blue 24 Vdc U White 12 Vdc 2 11 * See below I White 24 Vdc * See below I 997F-C *Typical emission colour White x y ^ = for 2mA product is Vf at 2mA, not - Products must be de-rated according to the de-rating information. Each de-rating graph refers to specific LEDs. Please refer to graphs on page 3. - Luminous intensity is measured at 2mA on a discrete LED unless otherwise stated. - Intensities (lv) and colour shades of white (x, y co-ordinates) may vary between LEDs within a batch De-rating Graphs BS EN ISO 91:28 marl international limited - dsn 677 RS - version page 1 of

2 technical data Header Mounting Hole Dimensions in mm (typical) Not to scale housing material Body Nut Panel Seal Fresnel Lens Encapsulation Lock Washer Termination Header technical characteristics Black Anodised Aluminium Nickel Plated Brass Viton Polycarbonate PC43 Resin Spring Steel Silver Flash Coated Brass - Anode termination denoted by red indicator Mounting hole to be clean and burr free push on connectors 92-- is brass tin plated - for use with 677 series lamps Dimensions in mm (typical). Not to scale. Series Max. Power Dissipation Max. Reverse Panel Cutout Nut Mounting Torque Min. Mounting Centres Max. Panel Thickness */1^ units mw Vdc mm Nm mm mm * = Current Version ^ = Version optional flying lead terminations O rder Code Suffix Supply Wire Wire Length No/Diameter of Conductor Diameter Insulation Comments 19 DC products Red-anode/ Black-cathode 1mm 19/.mm 1.2mm Customised lengths available BS EN ISO 91:28 marl international limited - dsn 677 RS - version page 2 of

3 de-rating information Derating Graph D Derating Graph F Derating Graph I Derating Graph U also available numbers also available in the 677 series: Red Vdc Red 2 ma dc Red /6 Vdc Red 12 Vdc Red 12 Vdc Red 12 Vdc Red 28 Vdc Red 28 Vdc Red 28 Vdc Red 48 Vdc Red 3 Vdc Red 6 Vdc Red 11 Vac Hz Red 11 Vac Hz Red 23 Vac Hz Red 1 Vac 6 Hz Red 1 Vac 6 Hz Red 12 Vdc Red 28 Vdc Orange 12 Vdc Green 2 ma dc Green 12 Vdc Green 28 Vdc Green 1 Vac 6 Hz Yellow 2 ma dc Yellow 12 Vdc Yellow 12 Vdc Yellow 12 Vdc Yellow 24 Vdc Yellow 28 Vdc Yellow 28 Vdc Yellow 28 Vdc Yellow 28 Vdc Yellow 48 Vdc Red 24 Vdc Red 28 Vdc The products listed here illustrate all of the options available to order. These products may have custom modifications that alter their operation beyond the generic information contained within this datasheet. Please contact sales for further information. * = These products do not contain integral resistors BS EN ISO 91:28 marl international limited - dsn 677 RS - version page 3 of

4 also available continued Yellow 12 Vdc Yellow 24 Vdc Green 24 Vdc Green 28 Vdc Red/Green 28 Vdc Green 1-26 Vac Green Vdc Green Vdc Green /6 Vdc Green 12 Vdc Green 12 Vdc Green 12 Vdc Green 24 Vdc Green 28 Vdc Green 28 Vdc Green 28 Vdc Green 28 Vdc Green 28 Vdc Green 28 Vdc Green 48 Vdc Green 3 Vdc Green 6 Vdc Green 6 Vdc Green 11 Vac Hz Green 11 Vac Hz Green 11 Vac Hz Green 1 Vac 6 Hz Green 1 Vac 6 Hz Red/Green 2 ma dc Red 28 Vdc Red 24 Vdc Blue /6 Vdc Blue 12 Vdc Blue 12 Vdc Blue 28 Vdc Blue 28 Vdc White /6 Vdc White 12 Vdc White 12 Vdc White 28 Vdc White 28 Vdc White 28 Vdc White 28 Vdc White 11 Vac Hz White 11 Vac Hz White 11 Vac Hz White 1 Vac 6 Hz BS EN ISO 91:28 marl international limited - dsn 677 RS - version page 4 of

5 design considerations Electro-Static Discharge (ESD) Build up of electro-static discharge occurs in many situations involving people moving and handling products. The range of possible situations is very diverse but voltage levels as high as several thousand volts can and do arise in many individual situations. When an operator charged up to these levels handles a static sensitive device, there is a very probable likelihood that the device will be irreversibly damaged. It is essential that precautions are taken at all stages during manufacture and assembly of these products. Although LEDs were never considered to be static sensitive devices, changes in manufacturing technology and materials used to produce higher intensity products over a large range of the wavelength spectrum have changed this. Marl has an approved system of ESD control from goods in, through production and into final packing and despatch. Marl recommend all users of LED based products follow the guidelines of BS 1. Power De-Rating The forward voltage/ current value of an LED is dependant upon the ambient temperature of the environment in which it is operated. Therefore, care must be taken to operate the LED at the correct voltage/ current values, depending upon the ambient temperature. Consequently, a recommendation regarding operating voltages and currents is given in order to address these temperature effects. This recommendation is termed de-rating. It is usual for forward voltages and currents to be specified for ambient temperature of 2 C. However, because the values of these qualities vary with temperature, please refer to the de-rating graphs for correct operation. Marl accept no liability for any product that is operated higher than the stated voltage. BS EN ISO 91:28 marl international limited - dsn 677 RS - version page of