508 EMC SERIES
PANEL INDICATOR LED
FEATURES
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EMC mesh under lens
Ø8.1mm mounting
Nickel plated brass housing
Sealed to IP67 - weatherproof
Wide viewing angle - smoked lens
Internal potting
Reverse protection diode fitted in all voltage models
Range of LED colour options
Range of voltage options
BENEFITS
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•
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Marl Part
Number
LED Colour
Red
Yellow
Red
Green
Yellow
Green
Blue
Cool White
Red
Yellow
Blue
Cool White
508-501-04-53
508-521-04-53
508-501-20-53
508-532-20-53
508-521-21-53
508-532-21-53
508-930-21-53
508-997-21-53
508-501-23-53
508-521-23-53
508-930-23-53
508-997-23-53
Typical Voltage
Vopr
2.0 **
2.0 **
5-6
5-6
12
12
12
12
24-28
24-28
24-28
24-28
Vdc
0.28
0.28
Typical Current
DC Iopr
20
20
10-16
5-12
19
17
18
20
16-19
16-19
13-16
15-19
mA
3
3
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
Max. Reverse
Voltage
458
440
236-346
814-1360
440
1815
452
1359
346-458
330-440
364
1063-1359
mcd
Typical LED
Luminous
Intensity
Protects against EMI/RFI
Standard industrial mounting size
Suitable for industrial applications
Suitable for external applications
Smoked lens gives good on/off contrast ratio
Suitable for high vibration applications
Protects against wrong polarity installation (voltage models)
Suitable for status panel indication
Manufactured with internal resistor
Outstanding reliability
Vandal resistant
Typical LED
Wavelength
λp
Operating
Temp
Topr *
Storage
Temp
Tstg
620
585
620
505
585
505
470
See Below
620
585
470
See Below
nm
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
-40 to +75
°C
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
-40 to +100
°C
Typical Emission Colours Cool White LED
X
Y
0.275
0.27
0.29
0.30
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 Flying Lead lengths available for semi-
custom projects. Please contact our Sales Team. All LED components are supplied in anti-static packaging.
* Characteristics stated at Ta = 25°C. For operating temperature derating graphs, please refer to sheet 2.
** These are Current models and the voltage shown is Vf at 20mA, not Vopr. Additionally, there is no reverse protection diode in Current models.
To order please contact us on +44 (0) 1229 582 430
F +44 (0) 1229 585 155
|
E sales@marl.co.uk
| www.leds.co.uk
marlleds
company/marl-international-limited
Q 05480
DSN 508EMC Version DS011/2019. Page 1 of 2
508 EMC SERIES
PANEL INDICATOR LED
TECHNICAL CHARACTERISTICS
Series
508
Max. Power
Dissipation
700
mW
Panel Cutout
8.1
mm
Nut Mounting
Torque
0.65
Nm
Min. Mounting
Centres
14.5
mm
Min. - Max. Panel
Thickness
1.5 - 13.0
mm
Weight (g): 7.6
Dimensions in mm (typical). Not to scale. Mounting hole to be clean and burr free. Anode termination denoted by red sleeve.
TECHNICAL DRAWING
3
11.5
Ø7
2.8
Mounting Hole
PUSH ON CONNECTOR
14.5
925-000-00 is brass tin plated - for use with 508 series
lamps. Dimensions in mm (typical). Not to scale.
DE-RATING GRAPHS
Red / Green / Blue / Cool White LED
Forward Current If (mA)
Forward Current If (mA)
50
40
30
20
10
0
50
40
30
20
10
0
Yellow LED
0
20
40
60
80
100
0
20
40
60
80
100
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
MATERIALS
Body
Nut
Panel Seal
Lens
Encapsulation
Lock Washer
Termination
Nickel Plated Brass
Nickel Plated Brass
Conductive Rubber
Polycarbonate
Black Polyurethane
Spring Steel
Silver Flash Coated Brass
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
current BSI guidelines for protection of electronic devices
from electrostatic phenomena.
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.
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
DESIGN CONSIDERATIONS
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 sales@marl.co.uk
| www.leds.co.uk
marlleds
company/marl-international-limited
Q 05480
DSN 508EMC Version DS011/2019. Page 2 of 2
3.7
Power technology
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