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Neutral White (4100K) LUXEON Rebel ES LED, Mounted on a 40mm Round 7-Up CoolBase - 1610 lm @ 700mA

 
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Neutral White (4100K) LUXEON Rebel ES LED, Mounted on a 40mm Round 7-Up CoolBase - 1610 lm @ 700mA
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The SR-02-WN300 LED assembly has 7 LXML-PWN2 Neutral White LUXEON Rebel ES LEDs soldered to our 40mm round 7-Up CoolBase. The FR4 CoolBase offers a high efficiency thermal design that matches or outperforms* standard aluminium MCPCB bases.
Part Number : SR-02-WN300
Quantity Price
10 - 24 $41.82
25 - 49 $39.62
50 - 99 $37.42
100 - 249 $35.22
250 - 999 $33.02
1000+ $30.81
Quantity

The SR-02-WN300 has been specifically designed to accommodate the Polymer and Khatod 7 Cell Cluster series of optics, including:

The LEDs can be powered singly or in series with the addition of 0 ohm resistors or solder dots. A Vishay NTC 10K Thermistor (NTHS0805N02N1002J) is mounted to the board to monitor temperature and can be used for foldback temperature control. For more information about using the thermistor, please review our SR-02 Thermal Measurement Guidelines document.

Want to power this LED assembly from a voltage as low as 10VDC? Then check out the FlexBlock LED driver. A single driver can power all 7 of these LEDs connected in series with any voltage from 10V to 18V*.

Need a mixture of different color LEDs pre-mounted to this board? A custom version of this assembly is also available.

* The maximum input voltage to the driver must be less than the total forward voltage of all series connected LEDs.

Specifications
 
LED Color Neutral White
Lumens @ 350mA 910 lm
Lumens @ 700mA 1610 lm
Lumens @ 1000mA 2170 lm
Efficacy @ 350mA 135 Lm/W (From datasheet)
Efficacy @ 700mA 113 Lm/W (From datasheet)
Typical Color Temperature (1) 4100K
Color Temperature Range (1) 3500 to 4500K
Color Rendering Index (1) 65 CRI
Beam Angle (2) 120°
Recommended Operating Current (3) 700 mA
Maximum Rated Drive Current 1000 mA
Typical Forward Voltage (4) 20.3 Vf
Maximum Forward Voltage (4,6) 22.75 Vf
Thermal Resistance (1,5) 7.5 C°/W
Max Recommended Junction Temp 150 °C
Operating Temperature Range -40 to 135 °C
Dimensions L x W x H 40 x 40 x 5 mm
  1. Values based on 350mA and a Thermal Pad temperature of 25C.
  2. Viewing angle is the off axis angle from lamp centerline where the luminous intensity is ½ of the peak value.
  3. This is the maximum operating current that we recommend for this LED. Higher drive currents may be possible, but will require careful design of a suitable cooling system.
  4. At the recommended operating current.
  5. Typical thermal resistance from the LED Junction to the bottom of the FR4 board.
  6. This is the value we recommend you use for determining driver input voltage.
* Results will vary depending on the quality of the dielectric material used in the MCPCB base.
Download Center
SR-02-WN300 Datasheet SR-02 Dimensional Drawing Thermistor Curves
LXML-PWN2 datasheet SR-02 Thermal Monitoring Guidelines  
Additional Ordering Information

The SR-02-WN300 can be ordered in any quantity with quantity discounts available.

If you order more than one piece of this part, pieces may be shipped as part of a routed panel with v-scored tabs for separating the parts from the panel.

Important Note About Stock: We usually only keep a small number of this part in stock. However, we can produce virtually any quantity that you may require on demand. Please contact us for lead times for orders above 300 pieces.

Binned LEDsDo you need LEDs with a specific flux, color or forward voltage? Order this part in 300 piece increments and we will 0build it using LEDs from the same bin. We can also provide specific bin numbers. Contact us for availability.

Click here to learn more about LED binning.

Thermal Management

SR-02-WN300 LED assemblies must be operated to ensure that the junction temperature of the LEDs are kept well below the maximum ratings as specified in the LXML-PWN2 datasheet. A heat sink must always be used when operating this assembly. The size of the heat sink will depend on the ambient temperature and the current that is used to power the LEDs. Bench testing that we have conducted with a SR-02-WN300 assembly powered at 700mA in an open air environment and an ambient temperature of 25°C has indicated that a heat sink with a thermal rating of 3.5 C°/W or lower should be adequate. However, you will need to perform your own testing and analysis to determine if this size of heat sink will be suitable for your application.

The SR-02-WN300 must be fastened to the heat sink using a thermal interface material such as our pre-cut Bond-Ply 100 pressure sensitive, double sided thermal tape or Arctic Silver thermal adhesive. If you are using thermal tape, we recommend that the assembly also be fastened to the heat sink using three 4-40 screws. Before fastening the assembly to the heat sink, ensure that the two mating surfaces are perfectly flat and clean in order to maximize heat transfer to the the sink. Be careful not to warp or distort the PC Board by over tightening the screws.

Connection Diagrams
SR-02 Series Operation
SR-02 Single Operation
SR-02 Thermistor Connection
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