THORLABS M405LP1 Quick Start Manual

Description

Thorlabs' M405LP1 Mounted LED has a dominant wavelength of 405 nm and is mounted to the end
of a large Ø57.0 mm heat sink equipped with internal SM1 (1.035"-40) threads for improved heat
dissipation. This LED needs to be supplied with a constant current that must not exceed the
maximum current. For more specifications, please see the table below.

Specifications

Specification
Color
Nominal Wavelength
Bandwidth (FWHM)
Viewing Angle (Full Angle)
Emitter Size
Test Current for Typical LED Power
Maximum Current (CW)
Electrical Power (Max)
Typical Lifetime
Operating Temperature (Non-Condensing)
Storage Temperature
Risk Group a
a. According to the standard IEC 62461:2006, Photobiological Safety of Lamps and Lamp Systems
a
Peak Wavelength
LED Output Power b
Forward Voltage
c
Maximum Irradiance
a. When Driven with a Current of 1000 mA
b. When Driven with the Test Current
c. Measured at a Distance of 200 mm

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 M405LP1
has a unique thermal design that reduces the power decay to a minimum.
The image to the bottom right shows the M405LP1's male connector, which 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 M405LP1 provides good thermal management, reducing the loss of
power as the LED reaches its equilibrium temperature.
M405LP1
M405LP1
Symbol Min
λ 400 nm
p
P 1200 mW
out
V -
F
E -
e
Mounted LED, 405 nm
Value
UV
405 nm
12 nm
120°
1.4 mm x 1.4 mm
1400 mA
1400 mA
4830 mW
>10 000 h
0 to 40 °C
-40 to 70 °C
RG2 – Moderate Risk Group
Typical
405 nm
1700 mW
3.45 V
24.6 µW/mm²
www.thorlabs.com/contact
Max
410 nm
-
-
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January 30, 2019
MTN004972‐S01, Rev D