THORLABS MCWHF2 Quick Start Manual

Description
Thorlabs' MCWHF2 Fiber-Coupled LED has a correlated color temperature of 6200 K, outputs more than
21.5 mW of power, and is mounted to the end of a heat sink. The output is compatible with SMA fiber
connectors. This LED needs to be supplied with a constant current that must not exceed 1000 mA.
Specifications
Specification
Color
Correlated Color Temperature
Test Current for Typical LED Power
Maximum Current (CW)
Bandwidth (FWHM)
Electrical Power
Typical Lifetime
Operating Temperature
(Non-Condensing)
Storage Temperature
Emitter Size
Risk Group a
a. According to the standard IEC 62471:2006, Photobiological Safety of Lamps and Lamp Systems
Correlated Color Temperature
LED Power Output (Ø400 µm Fiber)
LED Power Output (Ø200 µm Fiber)
Forward Voltage a
When Driven with the Test Current
a.
For multimode fiber with a Ø400 µm core and 0.39 NA (Item # FT400EMT).
b.
For multimode fiber with a Ø200 µm core and 0.22 NA (Item # FG200UCC).
c.
Operating Instructions
Be sure to provide air ventilation in order to avoid overheating, drops in optical power, and reduced lifetime. Each LED
has a characteristic switch-on behavior, which depends on the LED properties and environment conditions. An important
criterion is the heat dissipation. The MCWHF2 has a unique thermal and heat sink design that reduces the power decay to
a minimum.
MCWHF2's male connector is a standard M8x1 sensor circular connector. Pins 1 and 2 connect to the LED. Pins 3
and 4 are used for the internal EEPROM. Only use these connections when using a Thorlabs LED driver.
After an LED is switched on, it will warm up which can cause a decay in optical power. The heat sink of the MCWHF2
provides good thermal management, reducing the loss of power as the LED reaches its equilibrium temperature.
MCWHF2
MCWHF2
Symbol
λ
p
a,b
P
out
a,c P
out
V
F
Fiber-Coupled LED
Cold White
Value
Cold White
6200 K
1000 mA
1000 mA
N/A
2900 mW
>50 000 h
0 to 40 °C
-40 to 70 °C
1 mm x 1 mm
RG2 – Moderate Risk Group
Min Typical
5000 K 6200 K
21.5 mW 27.0 mW
- 8.8 mW
- 2.9 V
March 15, 2016
MTN005535‐S01, Rev A
Max
8300 K
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-
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