SFH 420
SFH 425
GaAs-IR-Lumineszenzdiode in SMT-Gehäuse
GaAs Infrared Emitter in SMT Package
Lead (Pb) Free Product - RoHS Compliant
SFH 420
SFH 425
Not for new design
Replacement: SFH4243 (for SFH420) / SFH4244 (for SFH425)
2012-08-17 1
Wesentliche Merkmale
• GaAs-LED mit sehr hohem Wirkungsgrad
• Gute Linearität (Ie = f [IF]) bei hohen Strömen
• Gleichstrom- (mit Modulation) oder
Impulsbetrieb möglich
• Hohe Zuverlässigkeit
• Hohe Impulsbelastbarkeit
• Oberflächenmontage geeignet
• Gegurtet lieferbar
•SFH 420 Gehäusegleich mit SFH 320
SFH 425 Gehäusegleich mit SFH 325
Anwendungen
• Miniaturlichtschranken für Gleich- und
Wechsellichtbetrieb, Lochstreifenleser
• Industrieelektronik
• „Messen/Steuern/Regeln“
• Automobiltechnik
• Sensorik
• Alarm- und Sicherungssysteme
• IR-Freiraumübertragung
Typ
Type
Bestellnummer
Ordering Code
Gehäuse
Package
SFH 420
SFH 425
Q65110A2473
Q65110A2463
Kathodenkennzeichnung: abgesetzte Ecke
cathode marking: beveled edge
TOPLED®
SIDELED®
Features
• Very highly efficient GaAs-LED
• Good Linearity (e = f [IF]) at high currents
• DC (with modulation) or pulsed operations are
possible
• High reliability
• High pulse handling capability
• Suitable for surface mounting (SMT)
• Available on tape and reel
•SFH 420 same package as SFH 320
SFH 425 same package as SFH 325
Applications
• Miniature photointerrupters
• Industrial electronics
• For drive and control circuits
• Automotive technology
• Sensor technology
• Alarm and safety equipment
• IR free air transmission
2012-08-17 2
SFH 420, SFH 425
Grenzwerte (TA = 25 C)
Maximum Ratings
Bezeichnung
Parameter
Symbol
Symbol
Wert
Value
Einheit
Unit
Betriebs- und Lagertemperatur
Operating and storage temperature range
Top; Tstg – 40 + 100 C
Sperrspannung
Reverse voltage
VR5 V
Durchlassstrom
Forward current
IF100 mA
Stoßstrom, 10 s, D = 0
Surge current
IFSM 3 A
Verlustleistung
Power dissipation
Ptot 160 mW
Wärmewiderstand Sperrschicht - Umgebung bei
Montage auf FR4 Platine, Padgröße je 16 mm2
Thermal resistance junction - ambient mounted
on PC-board (FR4), padsize 16 mm2 each
Wärmewiderstand Sperrschicht - Lötstelle bei
Montage auf Metall-Block
Thermal resistance junction - soldering point,
mounted on metal block
RthJA
RthJS
450
200
K/W
K/W
Kennwerte (TA = 25 C)
Characteristics
Bezeichnung
Parameter
Symbol
Symbol
Wert
Value
Einheit
Unit
Wellenlänge der Strahlung
Wavelength at peak emission
IF = 100 mA, tp = 20 ms
peak 950 nm
Spektrale Bandbreite bei 50% von Imax
Spectral bandwidth at 50% of Imax
IF = 100 mA
 55 nm
Abstrahlwinkel
Half angle
60 Grad
deg.
Aktive Chipfläche
Active chip area
A0.09 mm2
Abmessungen der aktiven Chipfläche
Dimensions of the active chip area
L B
L W0.3 0.3 mm2
SFH 420, SFH 425
2012-08-17 3
Schaltzeiten, e von 10% auf 90% und von 90%
auf 10%, bei IF = 100 mA, RL = 50 
Switching times, e from 10% to 90% and from
90% to10%, IF = 100 mA, RL = 50
tr, tf0.5 s
Kapazität
Capacitance
VR = 0 V, f = 1 MHz
Co25 pF
Durchlassspannung
Forward voltage
IF = 100 mA, tp = 20 ms
IF = 1 A, tp = 100 s
VF
VF
1.3 ( 1.5)
1.9 ( 2.5)
V
V
Sperrstrom
Reverse current
VR = 5 V
IR0.01 ( 1) A
Gesamtstrahlungsfluss
Total radiant flux
IF = 100 mA, tp = 20 ms
e18 mW
Temperaturkoeffizient von Ie bzw. e,
IF = 100 mA
Temperature coefficient of Ie or e,
IF = 100 mA
TCI– 0.55 %/K
Temperaturkoeffizient von VF, IF = 100 mA
Temperature coefficient of VF, IF = 100 mA
TCV– 1.5 mV/K
Temperaturkoeffizient von , IF = 100 mA
Temperature coefficient of , IF = 100 mA
TC+ 0.3 nm/K
Strahlstärke Ie in Achsrichtung (gemessen bei einem Raumwinkel = 0.01 sr)
Radiant Intensity Ie in Axial Direction (at a solid angle of = 0.01 sr)
Bezeichnung
Parameter
Symbol Werte
Values
Einheit
Unit
Strahlstärke
Radiant intensity
IF = 100 mA, tp = 20 ms
Ie min
Ie typ
2.5
5.0
mW/sr
mW/sr
Strahlstärke
Radiant intensity
IF = 1 A, tp = 100 s
Ie typ. 38 mW/sr
Kennwerte (TA = 25 C)
Characteristics (cont’d)
Bezeichnung
Parameter
Symbol
Symbol
Wert
Value
Einheit
Unit
SFH 420, SFH 425
2012-08-17 4
Relative Spectral Emission
Irel = f ()
Forward Current
IF = f (VF), single pulse, tp = 20 s
Radiation Characteristics
Irel = f ()
OHR01938
λ
rel
Ι
0880 920 960 1000
nm
1060
20
40
60
80
%
100
10
OHR01554
F
V
-3
-2
10
-1
10
0
10
1
10
0123456V8
A
Ι
F
0
0.2
0.4
1.0
0.8
0.6
ϕ
1.0 0.8 0.6 0.4
0˚10˚20˚40˚ 30˚
OHL01660
50˚
60˚
70˚
80˚
90˚
100˚
0˚ 20˚ 40˚ 60˚ 80˚ 100˚ 120˚
Radiant Intensity
Single pulse, tp = 20 s
Max. Permissible Forward Current
IF = f (TA)
e
e 100 mA = f (IF)
Ι
OHR00864
F
-1
10
10
-2 -1
10
0
10 A 10
1
10
0
mA)(100
e
Ι
e
Ι
10
1
OHR00883
0
F
Ι
0
20
40
60
80
100
120
20 40 60 80 100 120
mA
˚C
T
A
R
thjA
= 450 K/W
Permissible Pulse Handling
Capability IF = f (tp), duty cycle
D = parameter, TA = 20 C
SFH 420, SFH 425
2012-08-17 5
Maßzeichnung
Package Outlines
Maße in mm / Dimensions in mm.
SFH 420
GPLY6724
0.7 (0.028)
0.9 (0.035)
1.7 (0.067)
2.1 (0.083)
0.12 (0.005)
0.18 (0.007)
0.5 (0.020)
1.1 (0.043)
3.3 (0.130)
3.7 (0.146)
0.4 (0.016)
0.6 (0.024)
2.6 (0.102)
3.0 (0.118)
2.1 (0.083)
2.3 (0.091)
Cathode marking
3.0 (0.118)
3.4 (0.134)
(2.4) (0.095)
0.1 (0.004) (typ.)
4˚±1
A
C
SFH 425
GPLY6880
(R1)
Cathode marking
Cathode Anode
(2.4 (0.094))
2.8 (0.110)
2.4 (0.094)
4.2 (0.165)
3.8 (0.150)
0.9 (0.035)
1.1 (0.043)
spacing
2.54 (0.100)
0.7 (0.028)
(2.85 (0.112))
(1.4 (0.055))
(0.3 (0.012))
3.4 (0.134)
3.8 (0.150)
3.8 (0.150)
4.2 (0.165)
(2.9 (0.114))
AC
2012-08-17 6
SFH 420, SFH 425
Empfohlenes Lötpaddesign Reflow Löten
Recommended Solder Pad Reflow Soldering
Maße in mm / Dimensions in mm.
SFH 420
4.5 (0.177)
2.6 (0.102)
1.5 (0.059)
Cu-area > 16 mm
Cu-Fläche > 16 mm
2
2
Solder resist
Lötstopplack
4.5 (0.177)
1.5 (0.059)
2.6 (0.102)
Padgeometrie für
improved heat dissipation
verbesserte Wärmeableitung
Paddesign for
SFH 425
3.7 (0.146)
1.2 (0.047)
3.0 (0.118)
Cu-area > 16 mm
Cu-Fläche > 16 mm
Paddesign
for improved
heat dissipation
Wärmeableitung
für verbesserte
Padgeometrie
Lötstopplack
Solder resist
OHLPY965
2
2
SFH 420, SFH 425
2012-08-17 7
Lötbedingungen Vorbehandlung nach JEDEC Level 2
Soldering Conditions Preconditioning acc. to JEDEC Level 2
Reflow Lötprofil für bleifreies Löten (nach J-STD-020C)
Reflow Soldering Profile for lead free soldering (acc. to J-STD-020C)
Wellenlöten (TTW) (nach CECC 00802)
TTW Soldering (acc. to CECC 00802)
OHLA0687
0
0
T
t
˚C
s
120 s max
50
100
150
200
250
300
Ramp Up
100 s max
50 100 150 200 250 300
Ramp Down
6 K/s (max)
3 K/s (max)
25 ˚C
30 s max
260 ˚C +0 ˚C
-5 ˚C
245 ˚C ±5 ˚C
240 ˚C
255 ˚C
217 ˚C
Maximum Solder Profile
Recommended Solder Profile
235 ˚C -0 ˚C
+5 ˚C
Minimum Solder Profile
10 s min
OHLY0598
0
0
50 100 150 200 250
50
100
150
200
250
300
T
t
C
s
235 C
10 s
C... 260
1. Welle
1. wave
2. Welle
2. wave
5 K/s 2 K/s
ca 200 K/s
CC... 130100
2 K/s Zwangskühlung
forced cooling
Normalkurve
standard curve
Grenzkurven
limit curves
2012-08-17 8
SFH 420, SFH 425
Published by
OSRAM Opto Semiconductors GmbH
Leibnizstrasse 4, D-93055 Regensburg
www.osram-os.com
© All Rights Reserved.
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved. Due to technical requirements components may contain
dangerous substances. For information on the types in question please contact our Sales Organization.
Packing
Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office.
By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing
material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs
incurred.
Components used in life-support devices or systems must be expressly authorized for such purpose! Critical
components 1 , may only be used in life-support devices or systems 2 with the express written approval of OSRAM OS.
1 A critical component is a component usedin a life-support device or system whose failure can reasonably be expected
to cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system.
2 Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or maintain
and sustain human life. If they fail, it is reasonable to assume that the health of the user may be endangered.