2016-09-27
Infrared Emitter (940 nm)
Version 1.3
SFH 4841
Features:
•
Wavelength 940nm
•
Anode is electrically connected to the case
•
Short switching times
•
Spectral match with silicon photodetectors
•
DIN humidity caregory in acc. with DIN 40 040 GQG
Applications
•
Photointerrupters
•
Sensor technology
•
Light curtains
Notes
Depending on the mode of operation, these devices emit highly concentrated non visible infrared light which
can be hazardous to the human eye. Products which incorporate these devices have to follow the safety
precautions given in IEC 60825-1 and IEC 62471.
Ordering Information
Type:
Radiant Intensity
I
e
[mW/sr]
I
F
= 100 mA, t
p
= 20 ms
SFH 4841
SFH 4841-ST
Note:
Ordering Code
35 (≥ 16)
16 ... 50
Q65111A6134
Q65112A1865
Measured at a solid angle of Ω = 0.01 sr
2016-09-27
1
Version 1.3
Maximum Ratings
(T
A
= 25 °C)
Parameter
Operation and storage temperature range
Reverse voltage
Forward current
Surge current
(t
p
≤ 250 µs, D = 0)
Power consumption
Thermal resistance junction - ambient
Thermal resistance junction - case
ESD withstand voltage
(acc. to ANSI/ ESDA/ JEDEC JS-001 - HBM)
Characteristics
(T
A
= 25 °C)
Parameter
Peak wavelength
(I
F
= 100 mA, t
p
= 20 ms)
Centroid wavelength
(I
F
= 100 mA, t
p
= 20 ms)
Spectral bandwidth at 50% of I
max
(I
F
= 100 mA, t
p
= 20 ms)
Half angle
Dimensions of active chip area
Distance chip surface to lens top
Rise and fall time of I
e
( 10% and 90% of I
e max
)
(I
F
= 100 mA, R
L
= 50 Ω)
Forward voltage
(I
F
= 100 mA, t
p
= 20 ms)
Forward voltage
(I
F
= 1 A, t
p
= 100 µs)
Reverse current
(V
R
= 5 V)
Total radiant flux
(I
F
=100 mA, t
p
=20 ms)
(typ)
(typ)
(typ)
(typ)
(typ)
(typ)
(min ..
max)
(typ)
Symbol
λ
peak
λ
centroid
∆λ
ϕ
LxW
H
t
r
, t
f
Values
950
940
42
± 32
0.3 x 0.3
0.3 ... 0.7
12
1.6 (≤ 1.9)
3.6 (≤ 4.6)
Symbol
T
op
; T
stg
V
R
I
F
I
FSM
P
tot
R
thJA
R
thJC
V
ESD
Values
-40 ... 100
5
100
1
190
500
350
2
SFH 4841
Unit
°C
V
mA
A
mW
K/W
K/W
kV
Unit
nm
nm
nm
°
mm x
mm
mm
ns
V
V
µA
mW
(typ (max)) V
F
(typ (max)) V
F
I
R
Φ
e
not designed for
reverse operation
80
2016-09-27
2
Version 1.3
SFH 4841
Parameter
Temperature coefficient of I
e
or Φ
e
(I
F
= 100 mA, t
p
= 20 ms)
Temperature coefficient of V
F
(I
F
= 100 mA, t
p
= 20 ms)
Temperature coefficient of wavelength
(I
F
= 100 mA, t
p
= 20 ms)
Grouping
(T
A
= 25 °C)
Group
Min Radiant Intensity
I
F
= 100 mA, t
p
= 20 ms
I
e, min
[mW / sr]
SFH 4841-S
SFH 4841-T
SFH 4841-U
Note:
Symbol
(typ)
(typ)
(typ)
TC
I
TC
V
TC
λ
Values
-0.3
-0.8
0.3
Unit
%/K
mV / K
nm / K
Max Radiant Intensity
I
F
= 100 mA, t
p
= 20 ms
I
e, max
[mW / sr]
32
50
80
Typ Radiant Intensity
I
F
= 1 A, t
p
= 100 µs
I
e, typ
[mW / sr]
100
160
255
16
25
40
measured at a solid angle of Ω = 0.01 sr
Only one group in one packing unit (variation lower 2:1).
Relative Spectral Emission
1)
page 8
I
rel
= f(λ), T
A
= 25°C
100
OHF04134
Radiant Intensity
1)
page 8
I
e
/ I
e
(100 mA) = f(I
F
), single pulse, t
p
= 100 µs,
T
A
= 25°C
10
1
OHF05641
I
rel
%
80
Ι
e
(100 mA)
10
0
Ι
e
60
10
-1
40
20
10
-2
0
800
850
900
950
nm 1025
λ
10
-3 0
10
10
1
10
2
mA 10
3
I
F
2016-09-27
3
Version 1.3
SFH 4841
Forward Current
1)
page 8
I
F
= f(V
F
), single pulse, t
p
= 100 µs, T
A
= 25°C
OHF05675
Max. Permissible Forward Current
I
F, max
= f(T
A
), R
thJA
= 500 K / W
I
F
110
mA
90
80
70
60
50
40
30
20
10
0
0
20
40
60
I
F
10
3
mA
OHF05642
10
2
10
1
80 ˚C 100
10
0
0
1
2
3
V 4
T
A
Permissible Pulse Handling Capability
I
F
= f(t
p
), T
A
= 25 °C, duty cycle D = parameter
V
F
Permissible Pulse Handling Capability
I
F
= f(t
p
), T
A
= 85 °C, duty cycle D = parameter
I
F
1.1
A
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
OHF05676
D
=
T
t
P
t
P
I
F
T
I
F
1.1
A
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
OHF05677
D
=
T
t
P
t
P
I
F
T
D
=
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
D
=
0.005
0.01
0.02
0.05
0.1
0.2
0.5
1
0
-5
10 10
-4
10
-3
10
-2
10
-1
10
0
10
1
s 10
2
t
p
0
-5
10 10
-4
10
-3
10
-2
10
-1
10
0
10
1
s 10
2
t
p
2016-09-27
4
Version 1.3
Radiation Characteristics
1)
page 8
I
rel
= f(ϕ), T
A
= 25°C
40˚
30˚
20˚
ϕ
SFH 4841
10˚
0˚
1.0
OHF05674
50˚
0.8
60˚
0.6
70˚
0.4
80˚
90˚
0.2
0
100˚
1.0
0.8
0.6
0.4
0˚
20˚
40˚
60˚
80˚
100˚
120˚
Package Outline
Dimensions in mm.
2016-09-27
5
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