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| HFE4225 Next Generation High Power LEDs, Plastic ST Package FEATURES * Industry standard ST fiber connector * 850 nm GaAIAs LED * * * * Fiber Dip package style High reliability construction Straight plastic barrel and housing Wave solderable FIBER305.TIF DESCRIPTION Next Generation LEDs are designed for use in IEEE 802.3 Ethernet and IEEE 802.5J Token Ring applications such as repeaters, bridges, hubs, routers, switches and gateways. The devices are GaAIAs 850 nm LEDs which are designed to efficiently couple optical power into different fiber sizes ranging from 50/125 micron to 200/240 micron. They typically couple -12.0 dBm into 62.5/125 micron cable at 60 mA peak. The LED component is eletrically isolated from the connector barrel. The mechanical construction uses a high reliability ST Fiber-Dip fiber optic connector/housing designed to be easily mounted on printed circuit boards without the need for additional hardware. This component is specifically designed to provide performance and flexibility to the designer and should be driven with a 50% duty cycle at 60 mA to 100 mA peak forward current for the electrical input signal. Next Generation LEDs have been updated and improved from existing Fiber Optic LEDs. The Next Generation LEDs provide an improved lensing scheme which makes the fiber optic coupling more repeatable. The LEDs are manufactured with an automated process that eliminates variable introduced by a manual process. The Next Generation LEDs are pin for pin compatible with existing Fiber Dip LEDs. OUTLINE DIMENSIONS in inches (mm) FIBER309.DIM Pinout 1. Common 2. Anode 3. Cathode 4. Common Pin 1, 4, 5 & 8 are common. 5. Common 6. Anode 7. Anode 8. Common Honeywell reserves the right to make changes in order to improve design and supply the best products possible. h 95 HFE4225 Next Generation High Power LEDs, Plastic ST Package ELECTRO-OPTICAL CHARACTERISTICS (Ta = -40 to +85C unless otherwise specified) PARAMETER Fiber Coupled Power [A] (HFE4225-X22) Peak, Ta=25C Peak over temp. Fiber Coupled Power [A] Peak, Ta=25C Peak over temp. Fiber Coupled Power [A] Peak, Ta=25C Peak over temp. Fiber Coupled Power [A] Peak, Ta=25C Peak over temp. Fiber Coupled Power [A] (HFE4225-X23) Peak, Ta=25C Peak over temp. Forward Voltage Forward Voltage Temperature Coefficient Reverse Voltage Peak Wavelength Spectral Bandwidth (FWHM) Response Time P Temperature Coefficient Series Resistance Device Capacitance Thermal Resistance t/t eP/eT eP/eT rO C SYMBOL PU -17.3 -18.9 PU -18.8 -19.8 PU -13.5 -15.1 PU -15.0 -16.0 PU -15.0 -16.0 V V eV/eT eV/eT Ba aeI aeI 1.48 -10.5 1.84 1.70 -0.18 -0.22 3.8 856 850 55 50 4.0 -0.017 -0.006 4.0 40 260 -9.0 -8.0 2.09 V V mV/C mV/C V nm nm nm nm ns dB/C dB/C i pF C/W -12.0 -10.0 -9.0 dBm -10.0 -7.6 -7.0 dBm -15.8 -13.8 -12.8 dBm -13.8 -11.4 -10.8 dBm MIN TYP [A] MAX UNITS dBm TEST CONDITIONS I=100 mA Peak 50/125m fiber, NA = 0.20 I = 60 mA Peak 50/125 m fiber, NA = 0.20 I = 100 mA Peak 62.5/125 m fiber, NA = 0.275 I = 60 mA Peak 62.5/125 m fiber, NA = 0.275 I = 60 mA Peak 62.5/125 m fiber, NA = 0.275 I = 100 mA I = 60 mA I = 100 mA I = 60 mA I = 10 A I = 100 mA DC I = 60 mA DC I = 100 mA DC I = 60 mA DC I = 60 mA peak, No Prebias I = 100 mA I = 60 mA DC V = 0 V, f = 1 MHz Heat sinked 1.8 810 810 895 885 6.3 Notes 1. Typical specifications are for operations at TU= 25C. 2. PU is measured using a 10 meter mode stripped cable which is intended to accurately represent a working system. ABSOLUTE MAXIMUM RATINGS Storage temperature -55 to +85C Case operating temperature Lead solder temperature Reverse voltage Continuous forward current (heat sinked) -40 to +85C 269C, 10 s 1.8 V 100 mA Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. 96 h Honeywell reserves the right to make changes in order to improve design and supply the best products possible. HFE4225 Next Generation High Power LEDs, Plastic ST Package ORDER GUIDE Description Catalog Listing WARNING Under certain application conditions, the infrared optical output of this device may exceed Class 1 eye safety limits, as defined by IEC 825-1 (1993-11). Do not use magnification (such as a microscope or other focusing equipment) when viewing the device's output. Straight plastic barrel and housing, HFE4225-022 standard power Straight plastic barrel and housing, HFE4225-422 crimped leads, standard power Straight plastic barrel and housing, HFE4225-023 extended power Straight plastic barrel and housing, HFE4225-423 crimped leads, extended power CAUTION The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced damage and/or degradation to equipment, take normal ESD precautions when handling this product. Fig. 1 Typical Optical Power Output vs Forward FIBER021.GRA Current Fig. 2 Typical Spectral Output vs Wavelength FIBER105.GRA Fig. 3 Typical Optical Power Output vs Case FIBER025.GRA Temperature All Performance Curves Show Typical Values Honeywell reserves the right to make changes in order to improve design and supply the best products possible. h 97 |
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