SFH250 and SFH250V Receiver with analog output for polymer optical fiber applications Data Sheet Description Features The SFH250 is a low-cost 650nm receiver for optical data transmission with polymer optical fiber. This Sipin-photodiode works fine with the AVAGO transmitter SFH757. According to the intensity of the incident light the SFH250 generates an analog photocurrent. In typical applications the SFH250 is operated in reverse-biasing and is installed in series with a resistor, where the voltage tapping is taken. By increasing the reverse voltage the switching times decrease and the SFH250 can be used for transmission speeds up to 100MBd. * Fast Switching Time Components of the SFH series are optimized for easy coupling. No fiber stripping is required, only the cut fiber has to be inserted into the selected SFH component. SFH250 * Sensitive in visible and near IR Range * High linearity * 2.2mm aperture holds standard 980/1000/2200 um plastic fiber * No fiber stripping required * Molded microlens for efficient coupling Plastic Direct Fiber Connector housing (V-housing) * Locking screw attached to the connector * Interference-free transmission by the light-tight housing The transparent plastic package has an aperture where a 2.2mm fiber end can be inserted. This very easy coupling method is extremely cost-effective. * Transmitter and receiver can be positioned flexibly SFH250V * Supplied in tubes The V-housing allows easy coupling of unconnectorized 2.2mm polymer optical fiber by means of an axial locking screw. Applications Ordering Information * No cross talk * Auto insertable and wave solderable * Household electronics * Power electronics * Optical networks * Light barriers Application Literature SFH250 AN # Description 5342 General information about the SFH series with Selection Guide and recommendations regarding System Planning and Mounting 5341 Information about Basic and Special Circuits for Transmitter and Receiver of the SFH series SFH250V Type Ordering Code SFH250 SP000063866 SFH250V SP000063852 Package Dimensions SFH250 view from A 8.6 surface not flat 0.5 0.5 0.6 7.65 1.5 4.6 4.625 28 2.275 2.54 A 5.3 Cathode Dimensions in mm SFH250V 24.0 9.0 13.5 Cathode 3.5 4.8 8.8 SFH250 component 0.5 0.6 locking screw 7.62 spacing 2.54 5.08 Dimensions in mm Package V-housing Color Package V-housing axial locking screw SFH V-series components are color coded just like other Avago fiber optic components. The SFH757V transmitter has a white colored housing; the SFH250V and SFH551/11V receiver components have a black colored housing. This prevents mistakes while making connections. Product designation and date of manufacture are printed on the housing. Components of the SFH V-series are equipped with an axial locking screw for easy coupling to the unconnectorized 2.2 mm polymer optical fiber. The force that is necessary to pull a jammed fiber out of the V-housing is typically 50 N (with a torque of 15 cNm for tightening the locking screw). This is an approximate value that is very dependent on the fiber and torque combination. Package V-housing mounting pins SFH V-series components have two pins that are electrically isolated from the inner circuit. The pins are only designed for mounting the V-housing to the PCB surface. This helps increase stability, which is needed during fixing the fiber end by the axial locking screw. The retention force between the soldered mounting pins and the V-housing of the SFH component is about 20 N (with a vertical exertion of force). This is an approximate value. 2 Package V-housing mounting pins Package V-housing axial locking screw Technical Data Absolute Maximum Ratings Parameter Symbol Min Operating Temperature range TC Storage Temperature range Tstg Junction Temperature Soldering Temperature (2mm from case bottom, t5s) Typ Max Unit Notes -40 +85 C -40 +100 C TJ 100 C TS +260 C Reverse Voltage VR 30 V Power Dissipation Ptot 100 mW Thermal Resistance (Junction/Air) RthJA 750 K/W Electrostatic Discharge Voltage Capability ESD 2000 V 1 Electrostatic Discharge Voltage Capability ESD 400 V 2 Max Unit Notes Figure Notes: 1. ESD Capability for all Pins HBM(Human Body Model) according JESD22-A114 2. ESD Capability for all Pins MM (Machine Model) according JESD22-A115 Characteristics (TA = -40C to +85C) unless otherwise specified Parameter Symbol Maximum Photosensitivity Wavelength lsmax Min Typ* Photosensitivity Spectral Range (S=80%Smax) ls Dark Current (RL=50 ,VR=5V, TA=25C) IR 1 Capacitance (f=1MHz, VR=0) CS 11 Switching Times (RL=50, VR=5.0V, =650nm) T_rise (10%...90%) T_fall (90%.. 10%) tr tf 5 8 12 16 ns ns 1,2 6, 4 Switching Times (RL=50, VR=30.0V,=650nm) T_rise (10%...90%) T_fall (90%.. 10%) tr tf 3 4 10 10 ns ns 1,2 6, 4 850 400 1 1100 nm 1 10 nA 2 pF Photocurrent (RL=50 ,Popt=10uW, VR=5.0V, =650nm) IP 2.4 4.4 A Responsitivity (=650nm, RL=50) RIP 240 440 A / mW Photocurrent Temperature Coefficient (=650nm) TIP -0.03 %/K * Typical value = mean value at TA=25C Note: 1. Measured with optical input power -4dBm(mean) and pattern: "1010" at 5MBd 2. Increase with temperature 3. Not strictly linear behavior. Actual value at high optical input power could vary from the typical value. 3 Figure nm 5 5 2,3 3 3 2 IP / IP25C 1.05 Ip in A 1 0.95 500 600 700 800 900 Wavelength in nm 650nm 0.9 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 TA in C 1000 1100 1200 Figure 1. Typical Spectral Sensitivity Figure 2. Typical Photocurrent depending on temperature Photocurrent (measued with RL=50) 110 100 90 80 70 60 50 40 30 20 10 0 -40C 25C 85C + IP Reverse Voltage VR 5.00E-05 1.00E-04 1.50E-04 2.00E-04 Optical input Power in W - 2.50E-04 Figure 3. Typical Photocurrent at constant "Light ON" Figure 4 .Test circuit Capacitance 12 12 10 8 8 tr and tf in ns 10 6 4 2 0 SFH250 RL 0.00E+00 Capacitance in pF IP/ IP 25C (measured with RL=50, Popt=10W) 1.1 Relative Spectral Sensitivity in % 100 90 80 70 60 50 40 30 20 10 0 400 Spectral Sensitivity Switching times (measured with RL=50) tr at VR=5V tr at VR=20V tr at VR=30V tf at VR=5V tf at VR=20V tf at VR=30V 6 4 2 0 5 10 15 20 Reverse Voltage in V 25 30 Figure 5. Typical Capacitance; measured at TA=25C with fmeasured =1MHz For product information and a complete list of distributors, please go to our web site: 0 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 TA in C Figure 6. Typical Switching times; measured with pattern "1010" (5MBd) at -4dBm (mean) optical input power www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright (c) 2005-2011 Avago Technologies. All rights reserved. Obsoletes AV01-0711EN AV02-3095EN - October 25, 2011