204 series
features
• Direct replacement for T1 ¾ Bi-Pin
• Flat topped for enhanced, even illumination of large lens
areas
• 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)
Current Luminous
Wave
Length
(nm)
Operating
Temp.
(°C)
Storage
Temp.
(°C)
Part
Voltage
Vac/dc
De-rating
Graphs
Colour
DC
Intensity
(mcd)
Number
(mA)
204-501-21-38
204-521-21-38
204-532-21-38
204-930-21-38
204-997-21-38
204-993-21-38
204-501-23-38
204-521-23-38
204-532-23-38
204-997-23-38
204-993-23-38
Red
Yellow
Green
12 Vdc
12 Vdc
20
20
20
20
20
20
17
17
16
16
16
600
600
630
585
515
465
-40 - +80
-40 - +80
-40 - +80
-30 - +85
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
-40 - +100
D
D
F
U
I
12 Vdc
800
Blue
12 Vdc
140
White
12 Vdc
27000
Call
* See below -30 - +85
* See below -30 - +85
Warm White
Red
12 Vdc
I
24-28 Vdc
24 - 28 Vdc
24-28 Vdc
24-28 Vdc
24-28 Vdc
600
630
585
515
-40 - +80
-40 - +80
-40 - +80
D
D
F
I
Yellow
Green
600
800
White
27000
Call
* 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 204 - version 2013-02-27-173140
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