238 series
features
• Direct replacement for T6.8 Slide Base
• Railtrack Approved PA05/697
• True bi-polar product; AC and DC operation
• Flat topped for enhanced, even illumination of large lens
areas
• Water clear lens
• Pack Quantity = 20 Pieces
specifications
Ordering information and typical characteristics (Ta = 25°C)
Current Luminous
Wave
Length
(nm)
Operating
Temp.
(°C)
Storage
Temp.
(°C)
Part
Voltage
Vac/dc
De-rating
Graphs
Colour
DC
Intensity
(mcd)
Number
(mA)
238-501-98
238-521-98
238-532-98
238-997-98
238-501-93
238-521-93
238-532-93
238-997-93
238-993-93
Red
Yellow
Green
24 Vdc
24 Vdc
24 Vdc
24 Vdc
28 Vdc
28 Vdc
28 Vdc
28 Vdc
28 Vdc
20
20
18
18
16
16
15
15
15
2800
6100
660
580-590
525
-40 - +85
-40 - +80
-30 - +85
-40 - +85
-40 - +120
-40 - +100
-40 - +100
-40 - +85
A
D
D
I
34700
27000
2800
White
* See below -30 - +85
Red
660
580-590
525
-40 - +85
-40 - +80
-30 - +85
A
D
D
I
Yellow
Green
6100
-40 - +120
-40 - +100
-40 - +100
-40 - +100
34700
27000
21000
White
* See below -30 - +85
* See below -30 - +85
Warm White
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: 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
BS EN ISO 9001:2008
to alter without notice the specification or any conditions of supply for product or service.
approved manufacturer
marl international limited - dsn 238 - version 2012-12-06-113557
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