07.04.2011 VL400-5050 1 of 5 VL400-5050 technical data high power uv led, smd 5x5 mm ceramic features ? zener diode is built in the protective circuit against static electricity ? low voltage dc operated ? high power intensity ? complies with rohs directive specifications (25c) item symbol value unit absolute maximum ratings dc forward current i f 350 ma peak pulse forward current * i fp 420 ma reverse voltage u r 5 v power dissipation p d 1000 mw operating temperature t op -40 ? +85 c storage temperature t stg -40 ? +100 c soldering temperature (for 5 sec.) t sol 260 5 c * note: 1/200 duty cycle, 10 s pulse width item symbol min. typ. max. unit optical specifications cw output power * 1 p o 100 - 110 mw peak wavelength * 2 p 395 400 405 nm viewing angle 120 deg. electrical specifications forward current i f - 350 - ma forward voltage * 3 v f 3.2 - 4.2 v * note: 1. peak wavelength measurement allowance is 2 nm 2. optical ouput measurement allowance is 10% 3. forward voltage measurement allowance is 0.2 v outline dimensons (unit: mm, tolerance: 0.2 mm) note: the cathode is denoted by a black dot on the device surface
07.04.2011 VL400-5050 2 of 5 typical performance curves spectral distribution forward voltage vs. forward current ambient temperature vs. forward voltage forward current vs. relative radiance ambient temperature vs. relative radiance ambient temperature vs. peak wavelength 410 nm
07.04.2011 VL400-5050 3 of 5 reliability no. test item standard test methode test conditions note sample pass 1 steady state operating life internal ref. i f =350ma 1000 hr 20 ok 2 soldering test jesd22-b102-c 260c max 2 times 20 ok 3 reflow test jesd22-b102-c 260c max 2 times 20 ok 4 themal shock jesd22-a106-a -40c ? +85c 84 cycles 20 ok 5 temperature cycle jesd22-a104-a -35c ? +75c 168 cycles 20 ok 6 high temperature storage jesd22-a103-a tstg=85c 1000 hr 20 ok 7 low temperature storage internal ref. tstg=-40c 1000 hr 20 ok 8 high temperature high humidity jesd22-a101-b ta=85c, rh=85% 1000 hr 20 ok 9 on-off test internal ref. 2sec on, 2sec off 100000 cycle 20 ok 10 esd test jeita ed-4701 300 304 r=1.5k ?, c=100pf test voltage = 2kv 3 times negative/positive 20 ok conclusions: 1. the reliability tests were designed to evaluate both package integrity as well as workability of product performance over time. 2. all samples have done well by competed test required and passed all the qualification criteria with zero failure. from design standpoint, this package is robust enough to meet it?s data sheet conditions. 3. based on the food result shown on the above test, this product is qualified and released for market. precaution for use 1. cautions ? this device is a uv led, which radiates uv light during operation. ? do not look directly into the uv light or look through the optical system. to prevent in adequate exposure of uv radiation, wear uv protective glasses. 2. surface mount condition in automatic mounting of the smd leds on printed circuit boards, any bending, expanding and pulling forces or shock against the smd leds should be kept min. to prevent them from electrical failures and mechanical damages of the devices.
07.04.2011 VL400-5050 4 of 5 3. reflow soldering ? soldering of the smd leds should conform to soldering condition in the individual specifications. ? smd leds are designed for reflow soldering. ? in the reflow soldering, too high temperature and too large temperature gradient such as rapid heating/cooling may cause electrical & optical failures and damages of the devices. ? we cannot guarantee the leds after they have been assembled using the solder dipping methode. ? after leds have been soldered, repairs should not be done. as repair is unavoidable, a double-head soldering iron should be used. it should be confirmed beforehand whether the characteristitcs of the leds will be damaged by repairing or not. ? reflow soldering should not be done more than two times. lead solder lead-free solder classification reflow profile (jedec j-std-020c) classification reflow profile (jedec j-std-020c) manual soldering conditions 1. lead solder: max. 300c for max. 3sec, and only one time. 2. lead-free solder: max. 350c for max. 3sec, and only one time. ? recommended soldering pattern:
07.04.2011 VL400-5050 5 of 5 4. static electricity ? the leds are very sensitive to static electricity and surge voltage. so it is recommended that a wrist band or an anti-electrostatic glove be used when handling the leds. ? all devices, equipment and machinery must be grounded properly. it is recommended that precautions should be taken against surge voltage to the equipment that mounts the leds. 5. heat generation ? the powered leds generate heat. heat dissipation should be considered in the application design to avoid the environmental conditions for operation in excess of the absolute maximum ratings.
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