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Nichia NDB7A75 Datasheet
[ UTZ-SC0386_0]
image/svg+xml
[
UTZ-SC0386_0]
2013/12/05
Blue
Laser
Diode
NDB7
A
75
Features
•
Multi
Transverse
Mode
•
Can
Type:
φ
9.0
mm
Floating
Mounted
with
Protection
device
Absolute
Maximum
Ratings
Item
Symbol
Absolute
Maximum
Unit
Ratings
Forward
Current
(Tc=25
°
C)
If
3.0
A
Allowable
Reverse
Current
(Tc=25
°
C)
Ir
(LD)
85
mA
Storage
Temperature
Tstg
-40
~
85
°
C
Operating
Case
Temperature
Tc
0
~
60
°
C
Initial
Electrical/Optical
Characteristics
(Tc=25
°
C)
Item
Condition
Symbol
Min
Typ.
Max
Unit
Optical
Output
Power
If=2.3A
Po
3.4
3.5
3.6
W
Dominant
Wavelength
If=2.3A
λ
d
440
448
455
nm
Threshold
Current
CW
Ith
200
270
350
mA
Slope
Efficiency
CW
η
1.5
1.7
2.0
W/A
Operating
Voltage
If=2.3A
Vop
4.0
4.3
4.7
V
Beam
Parallel
If=2.3A
θ
//
10
14
20
°
Divergence*
Perpendicular
If=2.3A
θ
⊥
40
46
50
°
Beam
Pointing
Perpendicular
If=2.3A
Δθ
⊥
-3
–
3
°
Accuracy
Outline
Dimension
Unit
(mm)
+
0
–
0
.
0
3
()
are
reference
figures
Pin
Connection
This
model
does
not
have
Photo
Diode.
This
model
has
a
protection
device
built
in
as
a
protection
circuit
against
static
electricity.
(
)
are
reference
figures.
*
Full
angle
at
1/e
2
from
peak
intensity
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.
image/svg+xml
[
UTZ-SC0386_0]
2013/12/05
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.
Confirm
that
electrical
spike
current
generated
by
switching
on
and
off
does
not
exceed
the
maximum
operating
current
level
specified
herein
above
as
absolute
max
rating.
Also,
employ
appropriate
countermeasures
to
reduce
chattering
and/or
overshooting
in
the
Circuit.
ACC(Auto
Current
Control)
mode
is
recommended
for
the
Product
operation.
Also,
please
be
careful
for
the
overshooting
in
order
to
avoid
excessive
optical
output
power
as
the
laser
operation
is
started.
(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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