www.osram-os.com Produktdatenblatt | Version 1.1 SFH 4940 SFH 4940 Array Linear Infrared Emitter Arrays (940 nm) Applications ——Industrial Automation (Machine controls, Light barriers, Vision controls) Features: ——Package: black epoxy ——ESD: 2 kV acc.
SFH 4940 Maximum Ratings TA = 25 °C Parameter Symbol Operating temperature Top min. max. -40 °C 80 °C Storage temperature Tstg min. max. -40 °C 80 °C Reverse voltage 2) VR max. 12 V Forward current IF max. 40 mA Surge current tp ≤ 40 µs; D = 0 IFSM max. 1A Power consumption Ptot max. 70 mW ESD withstand voltage acc. to ANSI/ESDA/JEDEC JS-001 (HBM, Class 2) VESD max. 2 kV 2 Version 1.
SFH 4940 Characteristics IF = 40 mA; tp = 20 ms; TA = 25 °C Parameter Symbol Number of emitters n Dimension “B” (see drawing) l min. max. 24.8 mm 25.2 mm Peak wavelength λpeak typ. 950 nm Centroid wavelength λcentroid typ. 940 nm Spectral Bandwidth at 50% Irel,max ∆λ typ. 42 nm Half angle φ typ. 10 ° Dimensions of active chip area LxW typ. 0.3 x 0.3 mm x mm Distance chip surface to lens top H min. max. Rise time (10% / 90%) IF = 40 mA; RL = 50 Ω tr typ.
SFH 4940 Relative Spectral Emission 6), 7) Irel = f (λ); IF = 40 mA; tp = 20 ms OHF04134 100 I rel % 80 60 40 20 0 800 850 900 950 nm 1025 λ Radiation Characteristics Irel = f (φ) 40˚ 6), 7) 30˚ 20˚ 10˚ ϕ 50˚ 60˚ 0˚ 1.0 0.8 0.6 70˚ 0.4 80˚ 0.2 0 90˚ 1.0 0.8 100˚ OHF05663 4 Version 1.2 | 2018-05-22 0.6 0.
SFH 4940 Forward current Relative Radiant Intensity 6), 7) IF = f (VF); single pulse; tp = 40 µs IF Ie/Ie(40mA) = f (IF); single pulse; tp = 40 µs OHF05642 103 mA 6), 7) OHF05660 102 Ιe Ι e (40 mA) 101 102 100 101 10-1 100 0 1 2 3 10-2 0 10 V 4 101 102 mA 103 IF VF Max. Permissible Forward Current Permissible Pulse Handling Capability IF,max = f (TA); RthJA = 750 K / W IF = f (tp); duty cycle D = parameter; TA = 25°C OHF05661 45 mA IF 40 IF 35 30 1.1 A t D = TP 0.
SFH 4940 Dimensional Drawing 8) Approximate Weight: 278.0 mg Package marking: Cathode 6 Version 1.
SFH 4940 Recommended Solder Pad 7 Version 1.
SFH 4940 TTW Soldering IEC-61760-1 TTW OHA04645 300 10 s max., max. contact time 5 s per wave ˚C T 250 235 ˚C - 260 ˚C First wave Second wave Continuous line: typical process Dotted line: process limits ∆T < 150 K 200 Cooling Preheating ca. 3.5 K/s typical 150 ca. 2 K/s 130 ˚C 120 ˚C 100 ˚C 100 ca. 5 K/s Typical 50 0 0 20 40 60 80 100 120 140 160 180 200 220 s 240 t 8 Version 1.
SFH 4940 Notes The evaluation of eye safety occurs according to the standard IEC 62471:2006 (photo biological safety of lamps and lamp systems). Within the risk grouping system of this IEC standard, the LED specified in this data sheet fall into the class exempt group (exposure time 10000 s). Under real circumstances (for exposure time, conditions of the eye pupils, observation distance), it is assumed that no endangerment to the eye exists from these devices.
SFH 4940 Disclaimer Disclaimer Language english will prevail in case of any discrepancies or deviations between the two language wordings. Attention please! 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.
SFH 4940 Glossary 1) Radiant intensity: Measured at a solid angle of Ω = 0.001 sr 2) Reverse Operation: Reverse Operation of 10 hours is permissible in total. Continuous reverse operation is not allowed. 3) Total radiant flux: Measured with integrating sphere. 4) Thermal resistance: junction ‐ ambient, mounted on PC‐board (FR4), padsize 16 mm² each 5) Thermal resistance: junction - soldering point, of the device only, mounted on an ideal heatsink (e.g.
SFH 4940 Published by OSRAM Opto Semiconductors GmbH Leibnizstraße 4, D-93055 Regensburg www.osram-os.com © All Rights Reserved. 12 Version 1.
