202 SERIES BULB REPLACEMENT LED Marl Part Number LED Colour 202-301-20-38 202-325-20-38 202-324-20-38 202-934-20-38 202-991-20-38 202-998-20-38 202-301-21-38 202-325-21-38 202-324-21-38 202-934-21-38 202-991-21-38 202-998-21-38 202-301-23-38 202-325-23-38 202-324-23-38 202-934-23-38 202-991-23-38 202-998-23-38 202-301-24-38 202-325-24-38 202-324-24-38 202-934-24-38 202-991-24-38 202-998-24-38 Red Yellow Green Blue Warm White Cool White Red Yellow Green Blue Warm White Cool White Red Yellow Green Blue Warm White Cool White Red Yellow Green Blue Warm White Cool White FEATURES BENEFITS • • • • • • • • • • • • • T1 Midget Flange SX3s Base Water clear lens Flat topped LED Centre contact Anode as standard Range of LED colour options Range of voltage options Direct replacement for standard bulb fitting Water clear lens gives clear “off” state Flat topping gives even illumination of large lens areas Direct replacement for standard polarity installations No colour filter required Manufactured with internal resistor Outstanding reliability Typical Voltage DC Vopr Typical Current DC Iopr Typical LED Luminous Intensity Typical LED Wavelength λp Operating Temp Topr * Storage Temp Tstg 5-6 5-6 5-6 5-6 5-6 5-6 12 12 12 12 12 12 24-28 24-28 24-28 24-28 24-28 24-28 48 48 48 48 48 48 Vdc 20 20 20 20 20 20 20 20 20 20 20 20 15 15 15 15 15 15 12 12 12 12 12 12 mA 33 401 1010 225 TBC 1194 33 401 1010 225 TBC 1194 27 308 830 175 TBC 932 18 208 615 125 TBC 648 mcd 640 590 525 471 See Below See Below 640 590 525 471 See Below See Below 640 590 525 471 See Below See Below 640 590 525 471 See Below See Below nm -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 -30 to +85 °C -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 -40 to +85 °C Typical Emission Colours Warm White LED Typical Emission Colours Cool White LED X 0.433 0.433 0.440 0.440 X 0.296 0.283 0.330 0.330 Y 0.403 0.415 0.423 0.411 Y 0.276 0.305 0.360 0.318 NOTES Intensities (lv) and colour shades of white (X-Y co-ordinates) may vary between LEDs within a batch. Additional LED Colours, Voltage Options and Reverse Polarity options available for semi-custom projects. Please contact our Sales Team. All LED components are supplied in anti-static packaging. * For operating temperature derating graphs, please refer to sheet 2. To order please contact us on +44 (0) 1229 582 430 F +44 (0) 1229 585 155 | E [email protected] | www.leds.co.uk marlleds marlinternationallimited company/marl-international-limited Q 05480 DSN 202 Version 2015-05-28-140300. Page 1 of 2 202 SERIES BULB REPLACEMENT LED TECHNICAL DATA Series 202 Lamp Base Style Metric Equivalent Max. Power Dissipation T1 Sub Midget Flange SX3s 3 360 mW mm mW TECHNICAL DRAWING Weight (g): 8.3 Dimensions in mm (typical). Not to scale. Green dot on base of product signifies centre contact cathode -ve. Colour sleeve on product denotes LED colour. 10.3 1.6 3 3.2 3.10 30 20 10 0 40 30 20 10 20 40 60 80 Ambient Temperature Ta (°C) 100 0 Warm White LED 40 30 20 10 8.5 0 50 Forward Current If (mA) 40 Blue / Green LED 50 Forward Current If (mA) Red / Yellow LED 50 Forward Current If (mA) Forward Current If (mA) DE-RATING GRAPHS 0 20 40 60 80 Ambient Temperature Ta (°C) 100 0 0 50 Cool White LED 40 30 20 10 8.5 20 40 60 80 Ambient Temperature Ta (°C) 100 0 0 20 40 60 80 100 Ambient Temperature Ta (°C) DESIGN CONSIDERATIONS Single-Chip LEDs All devices feature water clear high intensity LEDs as standard. In devices where discrete LEDs are used, the single chip LED devices have been modified by the removal of the domed portion of the encapsulation (flat-topped) to provide even illumination of switches and annunciators. Non flat topped versions are also available. Flat-topping does not apply to devices using surfacemounted device (SMD) LEDs. Product Evaluation Filament replacement LEDs have been specifically designed to meet the primary objective of providing improved reliability. As this product range is suitable for both new-build and retro-fit, (sometimes in very old systems), a wide range of illuminated push button switches and lamp holders can be encountered. Due to subjectivity, evaluation of the LED type is recommended, (samples of all standard models are available). Care should be taken to correctly simulate operating ambient light conditions to ensure that the correct device has been selected to maximise viewing characteristics such as viewing angle, colour compatibility and on/ off contrast ratio. 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 100015. Voltage, Current and Temperature The forward voltage / current value of an LED is dependent 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. Marl should be contacted if the device is to be operated outside the temperature range specified. Marl accept no liability for any product that is operated outside the stated voltage or temperature range. To order please contact us on +44 (0) 1229 582 430 F +44 (0) 1229 585 155 | E [email protected] | www.leds.co.uk marlleds marlinternationallimited company/marl-international-limited Q 05480 DSN 202 Version 2015-05-28-140300. Page 2 of 2