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Nichia NDV4B16 Datasheet
image/svg+xml
-1-
[
UTZ-SC0325_4
]
2015/07/16
Violet Laser Diode
NDV4B16
Features
• Optical Output Power:
CW 300mW (@Tc=25
C)
• Peak Wavelength: 405nm
• Can Type:
5.6 Floating Mounted with Photo Diode and Zener Diode
Absolute Maximum Ratings
Item Symbol
Absolute Maximum
Ratings
Unit
Optical Output Power(Tc=25
C)*
Po 360 mW
Allowable Reverse Current Ir
(LD)
85 mA
PD Reverse Voltage Vr
(PD)
5 V
Storage Temperature Tstg -40 ~ 85
C
Operating Case Temperature Tc 0 ~ 70
C
Initial Electrical/Optical Characteristics
(Tc=25
C)
Item Condition SymbolMinTyp.MaxUnit
Optical Output Power* CW Po – – 300mW
Peak Wavelength Po=300mW
p
400405410nm
Threshold Current CW Ith – 30 35 mA
Operating Current Po=300mW Iop – 210250mA
Slope Efficiency CW
1.4 1.7 1.9 W/A
Operating Voltage Po=300mW Vop – 5.3 5.8 V
Beam
Divergence**
Parallel
Po=300mW
//
8.0 10.012.0
Perpendicular
17.019.021.0
Beam Pointing
Accuracy
Parallel
Po=300mW
//
-2.0- 2.0
Perpendicular
-2.5- 2.5
Monitor Current*** Po=300mW Im
0.2 – 2.0 mA
* Refer graph of Optical Output Power vs. Case Temperature
** Full angle at 50% from peak intensity
*** Monitor Current is short time power reference purpose only.
Not guaranteed for accuracy.
All figures in this specification are measured by Nichia’s method and may contain measurement
deviations.
The above specifications are for reference purpose only and subjected to change without prior notice.
Safety of Laser light
Laser Light can damage the human eyes and skin.
Do not expose the eye or skin to any laser light directly and/or through
optical lens. When handling the LDs, wear appropriate safety glasses to prevent laser light, even any reflections from entering
to the eye. Focused laser beam through optical instruments will increase the chance of eye hazard.
These LDs are classified in
Class 4 of IEC60825-1 and 21 CFR Part 1040.10 Safety Standards
. It is absolutely necessary
to take overall safety measures against User’s modules, equipment and systems into which Nichia LDs are incorporated
and/or integrated.
NICHIA CORPORATION
http://www.nichia.co.jp
HEADQUARTERS
491 Oka, Kaminaka-Cho, Anan-Shi, TOKUSHIMA 774-8601, JAPAN
PHONE: +81-884-22-2311 FAX: +81-884-21-0148
CONTACT
TOKYO SALES OFFICE
13F Tamachi Center Building 34-7, Shiba 5-Chome, Minato-Ku, TOKYO 108-0014, JAPAN
PHONE: +81-3-3456-3746 FAX: +81-3-5440-7516
Outline Dimension
Unit (mm)
( ) are reference figures
Pin Connection
This model has a Zener Diode built in
as a protection circuit against static
electricity.
0
50
100
150
200
250
300
350
400
01020304050607080
Optical Output Power [mW]
Case Temperature [
℃
]
Absolute Maximum Rating
Rating
X+
(0.4)
(90
°
)
0.4±0.1
Φ
5
.
6
+
0
–
0
.
0
3
12
3
Y+
Φ
2.0±0.2
Φ
3.55±0.1
4×
Φ
0.43±0.08
1.2±0.1
0.25±0.03
Glass Thickness
6.5±1.0
Φ
4.2±0.2
1.0±0.1
Emitting Point
Z+
(1.3)
Emitting Point
Reference Plane
2.3±0.2
(
Φ
1
.
6
)
4
Optical Output Power vs. Case Temperature
image/svg+xml
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[
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2015/07/16
Typical Characteristics
Optical Output Power vs. Forward Current
Forward Voltage vs. Forward Current
Threshold Current vs. Case Temperature
Peak Wavelength vs. Case Temperature
Far Field Pattern
Spectrum
-40-2002040
[°]
Relative Intensity [a.u.]
θ
//
θ
⊥
400402404406408410
Wavelength [nm]
Relative Intensity [a.u.]
0
60
120
180
240
300
360
0306090120150180210240
Forward Current [mA]
Optical Output Power
[mW]
Tc = 0ºC
Tc = 25ºC
Tc = 50ºC
Tc = 70ºC
0
1
2
3
4
5
6
7
0306090120150180210240
Forward Current [mA]
Forward Voltage
[V]
Tc = 0ºC
Tc = 25ºC
Tc = 50ºC
Tc = 70ºC
395
400
405
410
415
010203040506070
Case Temperature [ºC]
Peak Wavelength [nm]
10
15
20
25
30
35
40
45
010203040506070
Case Temperature [ºC]
Threshold Current [mA
]
image/svg+xml
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[
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]
2015/07/16
Cautions
(1) Operating method
The LD shall change its forward voltage requirement and optical output power according to temperature change. Also, the
LD will require more operation current to maintain same output power as it degrades. In order to maintain output power, use
of APC (Automatic Power Control) is recommended, which use feedback of the optical output power to adjust the operation
current.
Confirm that the optical output power generated by spike current when switching on and off does not exceed the maximum
absolute rating. Also, employ appropriate countermeasures to reduce chattering and/or overshooting in the Circuit.
(2) Static Electricity
Static electricity or electrical surges will reduce and degrade the reliability of the LDs. It is recommended to use a wrist strap
or anti-electrostatic glove when handling the Product.
(3) Absolute Maximum Rating
Active layer of LDs shall have high current density and generate high electric field during its operation. In order to prevent
excessive damage, the LD must be operated strictly below Absolute Max Rating.
(4) Others
Nichia LDs described in this brochure are intended to be used for ordinary electronic equipment (such as office equipment,
communications equipment, measurement instruments and household appliances). Consult Nichia’s sales staff in advance for
information on the applications in which exceptional quality and reliability are required, particularly when the failure or
malfunction of the LDs may directly jeopardize life or health (such as for airplanes, aerospace, submersible repeaters, nuclear
reactor control systems, automobiles, traffic control equipment, life support systems and safety devices).
The Purchaser must acknowledge that any LD can statistically fail and must design its equipments in a fail safe design. Prior
to use of the LD, please confirm that the LD, as described in Nichia’s specifications, meets the life expectancy needs of, and
provides the features required by the Circuit and any related modules, equipment and/or systems.
Due to its short wavelength and high optical output power, optical depositions on optical path may occur depending on
surrounding conditions. Appropriate design or countermeasures should be used to avoid optical depositions.
Nichia prohibits Purchaser from reverse engineering, disassembling, or taking any other steps to derive the structure or
design of the LD.
The appearance and specifications of the product may be modified for improvement without notice. The formal specifications
must be exchanged and signed by both parties before large volume purchase begins.
No unauthorized transmission or reproduction of this document, either in whole or in part, is permitted.
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