211-997-84-38 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > LED optoelectronic/LED> photoelectric> 211-997-84-38

211-997-84-38: DescriptionSingle Color LED,; CategoryLED optoelectronic/LED photoelectric; File Size283KB，5 Pages; ManufacturerMarl International; Websitehttps://www.leds.co.uk; Environmental Compliance

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211-997-84-38 Overview

Single Color LED,

211-997-84-38 Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Objectid	1168975196
Reach Compliance Code	compliant
Country Of Origin	UK
YTEOL	7.57
Optoelectronic device types	SINGLE COLOR LED

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211 series

features

• Direct replacement for T3 ¼ Midget Edison Screw E10

• Centre contact Cathode version available

• Ideal for industrial pushbutton switches and annunciator

panels

• Durable to shock and vibration

• Warm white LEDs 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

211-501-21-38

211-521-21-38

211-532-21-38

211-930-21-38

211-997-21-38

211-993-21-38

211-501-23-38

211-521-23-38

211-532-23-38

211-930-23-38

211-997-23-38

211-993-23-38

White

Warm White

Green

White

Warm White

Red

Colour

Red

Yellow

Green

Voltage

Vac/dc

12 Vdc

24 - 28 Vdc

Current

(mA)

785

Call

* See below

-30 - +85

-40 - +100

800

515

-40 - +80

-40 - +100

785

Call

600

* See below

630

-30 - +85

-40 - +80

-40 - +100

Luminous

Intensity

(mcd)

600

800

Wave

Length

(nm)

630

585

515

Operating

Temp.

(°C)

-40 - +80

Storage

Temp.

(°C)

-40 - +100

De-rating

Graphs

* = 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

+44 (0)1229 585 155

sales@marl.co.uk

www.leds.co.uk

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 211 - version 2012-12-06-113509

page 1 of 5

filament replacement leds

211 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

+44 (0)1229 585 155

sales@marl.co.uk

www.leds.co.uk

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 211 - version 2012-12-06-113509

page 5 of 5

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