204 series features • Direct replacement for T1 ¾ Bi-Pin • Flat topped for enhanced, even illumination of large lens • Reduces maintenance costs • ‘Fit and Forget’ reliability • Warm white LED may be used behind coloured lens as a true replacement for a filament lamp • Pack Quantity = 20 Pieces specifications Ordering information and typical characteristics (Ta = 25°C) Part Number Colour Luminous Intensity (mcd) Wave Length (nm) Operating Temp. (°C) Storage Temp. (°C) De-rating Vac/dc Current DC (mA) Voltage Graphs 204-501-21-38 Red 12 Vdc 20 600 630 -40 - +80 -40 - +100 D 204-521-21-38 Yellow 12 Vdc 20 600 585 -40 - +80 -40 - +100 D 204-532-21-38 Green 12 Vdc 20 800 515 -40 - +80 -40 - +100 F 204-930-21-38 Blue 12 Vdc 20 140 465 -30 - +85 -40 - +100 U 204-997-21-38 White 12 Vdc 20 27000 * See below -30 - +85 -40 - +100 I 204-993-21-38 Warm White 12 Vdc 20 Call * See below -30 - +85 -40 - +100 I 204-501-23-38 Red 24-28 Vdc 17 600 630 -40 - +80 -40 - +100 D 204-521-23-38 Yellow 24 - 28 Vdc 17 600 585 -40 - +80 -40 - +100 D 204-532-23-38 Green 24-28 Vdc 16 800 515 -40 - +80 -40 - +100 F 204-997-23-38 White 24-28 Vdc 16 27000 * See below -30 - +85 -40 - +100 I 204-993-23-38 Warm White 24-28 Vdc 16 Call * See below -30 - +85 -40 - +100 I * = Voltage for 20mA product is Vf at 20mA, not Vopr - 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 2. - Luminous intensity is measured at 20mA on a discrete LED unless otherwise stated. to order to order please contact us on: t: +44 (0)1229 582 430 f: +44 (0)1229 585 155 e: [email protected] w: www.leds.co.uk © marl international limited technical documentation has been designed by marl international limited for the intention of providing information, which must not be copied or released to a third party without prior written consent from marl international limited. the information provided does not constitute part of any order or contract and should not be regarded as a representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl international limited reserve the right to alter without notice the specification or any conditions of supply for product or service. marl international limited - dsn 204 - version 2013-02-27-173140 BS EN ISO 9001:2008 approved manufacturer page 1 of 5 filament replacement leds areas 204 series technical data 6 2.54 5 5.8 0.50 15.3 Colour dot on product sleeve denotes LED colour. Green dot on base indicates anode +ve termination. Dimensions in mm (typical) Not to scale Lamp Base Style Series Metric Equivalent (mm) Max. Power Dissipation (mW) T1 ¾ Bi-Pin 204 5 500 997F-C *Typical emission colour White 899F *Typical emission colour Warm White x 0.31 - - - x 0.4255 0.4390 0.4680 0.4519 y 0.32 - - - y 0.4000 0.4310 0.4385 0.4086 Intensities (Iv) and colour shades of white (x,y co-ordinates) may vary between leds within a batch de-rating information Derating Graph D 55 50 50 50 45 45 40 35 30 25 20 15 10 5 0 0.0 20.0 40.0 60.0 80.0 Ambient Temperature Ta (°C) 100.0 Forward Current IF (mA) 55 Forward Current IF (mA) Forward Current IF (mA) Derating Graph I Derating Graph F 55 40 35 30 25 20 15 10 45 40 35 30 25 20 15 10 8.5 5 5 0 0.0 0 0.0 20.0 40.0 60.0 80.0 100.0 Ambient Temperature Ta (°C) 20.0 40.0 60.0 80.0 100.0 Ambient Temperature Ta (°C) to order to order please contact us on: t: +44 (0)1229 582 430 f: +44 (0)1229 585 155 e: [email protected] w: www.leds.co.uk © marl international limited technical documentation has been designed by marl international limited for the intention of providing information, which must not be copied or released to a third party without prior written consent from marl international limited. the information provided does not constitute part of any order or contract and should not be regarded as a representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl international limited reserve the right to alter without notice the specification or any conditions of supply for product or service. marl international limited - dsn 204 - version 2013-02-27-173140 BS EN ISO 9001:2008 approved manufacturer page 2 of 5 204 series de-rating information continued Derating Graph U 55 Forward Current IF (mA) 50 45 40 35 30 25 20 15 10 8.5 5 0 0.0 20.0 40.0 60.0 80.0 100.0 Ambient Temperature Ta (°C) to order to order please contact us on: t: +44 (0)1229 582 430 f: +44 (0)1229 585 155 e: [email protected] w: www.leds.co.uk © marl international limited technical documentation has been designed by marl international limited for the intention of providing information, which must not be copied or released to a third party without prior written consent from marl international limited. the information provided does not constitute part of any order or contract and should not be regarded as a representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl international limited reserve the right to alter without notice the specification or any conditions of supply for product or service. marl international limited - dsn 204 - version 2013-02-27-173140 BS EN ISO 9001:2008 approved manufacturer page 3 of 5 204 series also available Part numbers also available in the 204 series: Part Voltage Colour Number 204-501-04-38 204-501-19-38 204-501-21 204-501-71-38 204-505-22 204-521-21 204-532-20-38 204-532-21 204-532-71-38 204-585-21 204-899-23-50 204-905-22 204-907-23-38 204-930-04-38 204-930-21 204-930-23 204-930-23-38 204-993-22-38 204-993-23 204-993-24-38 204-993-48-38 204-993-71-38 204-997-04 204-997-22-38 Vopr Red Red Red Red Red Yellow Green Green Green Yellow Warm White Green Blue Blue Blue Blue Warm White Warm White Warm White Warm White Warm White White White 20 mA dc 3.7 Vdc 12 Vdc 12 Vac 50 Hz 24 Vdc 12 Vdc 5/6 Vdc 12 Vdc 12 Vac 50 Hz 12 Vdc 28 Vdc 24 Vdc 28 Vdc 20 mA dc 12 Vdc 28 Vdc 28 Vdc 24 Vdc 28 Vdc 48 Vdc 60 Vdc 12 Vac 50 Hz 20 mA dc 24 Vdc The products listed above 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. RP = Reverse Polarity to order to order please contact us on: t: +44 (0)1229 582 430 f: +44 (0)1229 585 155 e: [email protected] w: www.leds.co.uk © marl international limited technical documentation has been designed by marl international limited for the intention of providing information, which must not be copied or released to a third party without prior written consent from marl international limited. the information provided does not constitute part of any order or contract and should not be regarded as a representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl international limited reserve the right to alter without notice the specification or any conditions of supply for product or service. marl international limited - dsn 204 - version 2013-02-27-173140 BS EN ISO 9001:2008 approved manufacturer page 4 of 5 204 series 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 surface-mounted 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. 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 25°C. However, because the values of these qualities vary with temperature, marl should be contacted if the device is to be operated at a temperature significantly higher than 25°C. Marl accept no liability for any product that is operated higher than the stated voltage. to order to order please contact us on: t: +44 (0)1229 582 430 f: +44 (0)1229 585 155 e: [email protected] w: www.leds.co.uk © marl international limited technical documentation has been designed by marl international limited for the intention of providing information, which must not be copied or released to a third party without prior written consent from marl international limited. the information provided does not constitute part of any order or contract and should not be regarded as a representation relating to either products or service. no responsibility can be assumed for inaccuracies or printing errors. marl international limited reserve the right to alter without notice the specification or any conditions of supply for product or service. marl international limited - dsn 204 - version 2013-02-27-173140 BS EN ISO 9001:2008 approved manufacturer page 5 of 5