423 series
features
• Ø9.5mm mounting
• Front panel replaceability
• Must be used in conjunction with 907-000-00 panel socket
• Domed fresnel lens styling for wide viewing angle
options
• Sealed to IP40
• Pack Quantity = 20 Pieces
• Colour diffused lens, with smoked and water clear lens
specifications
Ordering information and typical characteristics (Ta = 25°C)
Part
Number
423-501-21
423-521-21
423-532-21
423-930-21
423-997-21
423-501-23
423-521-23
423-532-23
Colour
Red
Yellow
Green
Blue
White
Red
Yellow
Green
Voltage
Vac/dc
12 Vdc
12 Vdc
12 Vdc
12 Vdc
12 Vdc
28 Vdc
28 Vdc
28 Vdc
Current
DC
(mA)
20
20
20
20
20
17.5
17.5
17.5
Luminous
Intensity
(mcd)
900
600
36000
9870
12900
2800
6100
34700
Wave
Length
(nm)
660
585
523
468
* See below
660
580-590
525
Operating
Temp.
(°C)
-40 - +85
-40 - +80
-30 - +85
-30 - +85
-30 - +85
-40 - +85
-40 - +80
-30 - +85
Storage
Temp.
(°C)
-40 - +85
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +85
-40 - +120
-40 - +100
De-rating
Graphs
A
D
R
U
H
A
D
D
998
x
y
*Typical emission colour White
0.287
0.295
0.283
0.305
0.330
0.360
0.330
0.339
- Intensities (lv) and colour shades of white (x, y co-ordinates) may vary between LEDs within a batch
- 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 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:
sales@marl.co.uk
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.
BS EN ISO 9001:2008
approved manufacturer
marl international limited - dsn 423 - version 2013-04-22-091950
page 1 of 5
cartridge plastic panel lamps
423 series
technical data
6.7
8.4
7
17
5
0.65 Sq
Min. Mounting
Centres
16.5
Dimensions in mm (typical)
Not to scale
Green dot on base of product signifies centre contact cathode -ve.
Coloured dot on LED denotes LED colour
housing material
Body
Termination pins
Fresnel lens
Header
Rear retainer
Mounting hardware
Nylon 6
Tin on Nickel Plated Phosphor Bronze
Polycarbonate
Black Acetal
N/A
Use with socket 905-000-00
technical characteristics
Series
423
Max. Power
Dissipation
500
Max. Reverse
Voltage
3
7.4
4.2
Panel Cutout
9.5
Max. Panel
Thickness
6.5
units
mW
Vdc
mm
mm
mm
panel sockets & connectors
909-000-00 is gold plated
910-000-00is tin plated
For use with 907 and 908 series panel sockets.
Suitable for wire sizes from 0.15mm
2
to 0.38mm
2
cross sectional area.
Dual metal contact design provides low resistance and gas tight electrical contact
to order
to order please contact us on: t:
+44 (0)1229 582 430
f:
+44 (0)1229 585 155
e:
sales@marl.co.uk
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.
BS EN ISO 9001:2008
approved manufacturer
marl international limited - dsn 423 - version 2013-04-22-091950
page 2 of 5
423 series
optional reverse protection diode
Order Code
Suffix
Circuit
Comments
01
Available on all indicators except bi-colour
devices
de-rating information
Derating Graph A
55
50
45
40
35
55
50
45
40
35
Derating Graph D
55
50
45
40
35
Derating Graph H
Forward Current IF (mA)
Forward Current IF (mA)
30
25
20
15
10
5
0
0.0
20.0
40.0
60.0
80.0
6
100.0
30
25
20
15
10
5
0
0.0
20.0
40.0
60.0
80.0
100.0
Forward Current IF (mA)
30
25
20
15
10
5
0
0.0
20.0
40.0
60.0
80.0
8
100.0
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
Ambient Temperature Ta (°C)
Derating Graph R
55
50
45
40
35
55
50
45
40
35
Derating Graph U
Forward Current IF (mA)
30
25
20
15
10
5
0
0.0
20.0
40.0
60.0
80.0
8.5
Forward Current IF (mA)
30
25
20
15
10
5
0
0.0
8.5
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:
sales@marl.co.uk
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.
BS EN ISO 9001:2008
approved manufacturer
marl international limited - dsn 423 - version 2013-04-22-091950
page 3 of 5
423 series
also available
Part numbers also available in the 423 series:
Part
Colour
Number
423-501-22
423-501-24
423-501-72
423-502-21
423-503-04
423-503-20
423-503-21
423-503-22
423-503-24
423-503-72
423-506-00-51
423-506-21
423-506-22
423-506-22-01
423-506-74-50
423-509-04
423-509-21
423-509-22
423-509-24
423-512-04
423-512-20
423-512-21
423-512-22
423-512-24
423-521-00-51
423-521-00-52
423-521-04
423-521-22
423-521-72
423-521-74-51
423-521-74-52
423-532-22
423-532-24
423-532-72
423-930-22
423-930-24
423-930-72
423-993-04
423-997-22
423-997-23
423-997-24
423-997-72
Red
Red
Red
Red
Red
Red
Red
Red
Red
Red
Orange
Orange
Orange
Orange
Orange
Yellow
Yellow
Yellow
Yellow
Green
Green
Green
Green
Green
Yellow
Yellow
Yellow
Yellow
Yellow
Yellow
-
Green
Green
Green
Blue
Blue
Blue
Warm White
White
White
White
White
Vopr
24 Vdc
48 Vdc
24 Vac 50 Hz
12 Vdc
20 mA dc
5/6 Vdc
12 Vdc
24 Vdc
48 Vdc
24 Vac 50 Hz
-
12 Vdc
24 Vdc
24 Vdc
48 Vac 50 Hz
20 mA dc
12 Vdc
24 Vdc
48 Vdc
20 mA dc
5/6 Vdc
12 Vdc
24 Vdc
48 Vdc
-
-
20 mA dc
24 Vdc
24 Vac 50 Hz
48 Vac 50 Hz
48 Vac 50 Hz
24 Vdc
48 Vdc
24 Vac 50 Hz
24 Vdc
48 Vdc
24 Vac 50 Hz
20 mA dc
24 Vdc
28 Vdc
48 Vdc
24 Vac 50 Hz
Voltage
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:
sales@marl.co.uk
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.
BS EN ISO 9001:2008
approved manufacturer
marl international limited - dsn 423 - version 2013-04-22-091950
page 4 of 5
423 series
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 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:
sales@marl.co.uk
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.
BS EN ISO 9001:2008
approved manufacturer
marl international limited - dsn 423 - version 2013-04-22-091950
page 5 of 5
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