rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 1 of 8 semtech features ? transient protection for high-speed data lines to iec 61000-4-2 (esd) 18kv (air), 12kv (contact) iec 61000-4-4 (eft) 40a (5/50ns) iec 61000-4-5 (surge) 5a (8/20s) ? protects up to two i/o lines ? low capacitance (<1pf) ? no insetion loss to > 3.0 ghz ? low profle (<1mm) ? low leakage current and clamping voltage ? low operating voltage: 5.0v ? solid-state silicon-avalanche technology mechanical characteristics ? sc-75 (sot-523) package ? lead finish: matte tin ? pb-free, halogen free, rohs/weee compliant ? molding compound fammability rating: ul 94v-0 ? packaging: tape and reel applications ? mobile display digital interface (mddi) ? usb 2.0/usb 3.0 ? gaas photodetector protection ? hbt power amp protection ? infniband transceiver protection rclamp0502ba low capacitance railclamp? esd & cde protection description railclamp? tvs diodes are specifcally designed to protect sensitive components which are connected to high-speed data and transmission lines from overvoltage caused by esd (electrostatic discharge), cde (cable discharge events), and eft (electrical fast transients). the rclamp?0502ba has a typical capacitance of only 0.50pf (pin1 to 2). this means it can be used on circuits operating in excess of 3ghz with minimal signal attenuation. they may be used to meet the esd immunity requirements of iec 61000-4-2, level 4 (18kv air, 12kv contact discharge). each device can be confgured to protect 1 bidirectional line or two unidirectional lines. these devices are in a small sc-75 (sot-523) package and feature a lead-free, matte tin fnish. they are compatible with both lead free and snpb assembly techniques. they are designed for use in applications where board space is at a premium. the combination of small size, low capacitance, and high level of esd protection makes them a fexible solution for applications such as hdmi, mddi, antenna circuits, automatic test equipment, usb 2.0/3.0, and infniband circuits. 1 2 3 1.60 0.75 1. 00 bsc 0.50 bsc 1.60 0. 80 2 1 3 nominal dimensions (mm) schematic & pin confguration sc-75 3l (top view) protection products www.semtech.com
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 2 of 8 semtech absolute maximum rating rating symbol value units peak pulse power (tp = 8/20s) p pk 125 w peak pulse current (tp = 8/20s) i pp 5 a esd per iec 61000-4-2 (air) (1) esd per iec 61000-4-2 (contact) (1) v esd 18 12 kv operating temperature t j -55 to +125 o c storage temperature t stg -55 to +150 o c electrical characteristics (t=25 o c unless otherwise specifed) parameter symbol conditions min. typ. max. units reverse stand-of voltage v rwm pin 1 or pin 2 to pin 3, and between pin 1 & 2 5 v reverse breakdown voltage v br i br = 1ma, pin 1 or pin 2 to pin 3 6 v reverse leakage current i r v rwm = 5v, pin 1 or pin 2 to pin 3 and between pin 1 & 2 1 a clamping voltage v c t p = 8/20s pin 1 or pin 2 to pin 3 i pp = 1a 15 v t p = 8/20s pin 1 or pin 2 to pin 3 i pp = 5a 22 t p = 8/20s between pin 1 & 2 i pp = 5a 25 junction capacitance c j v r = 0v, f = 1mhz pin 1 to pin 2 0.5 0.9 pf pin 1 or pin 2 to pin 3 1.2 pf notes: 1) esd gun return path connected to esd ground plane. www.semtech.com
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 3 of 8 semtech typical characteristics non repetitive peak pulse power vs. pulse time power derating curve esd clamping (4kv contact per iec 61000-4-2) clamping voltage vs. peak pulse current (tp=8/20s) -20 0 20 40 60 80 -10 0 10 20 30 40 50 60 70 80 clamping voltage (v) time (ns) t a = 25 o c. waveform iec61000 -4 -2 4 kv contact discharge. measured with and corrected for 50 , 40db attenuator. 50 scope input impedance, 2ghz bw. esd gun return connected to esd ground plane. 0 2 4 6 8 10 12 14 16 18 0 1 2 3 4 5 6 clamping voltage - v r (v) peak pulse current - i pp (a) 5823.1 pdcu lg waveform: parameters: tr = 8s td = 20s pin 1 or pin 3 to pin 2 pin 1 to pin 2 -20 0 20 40 60 80 100 120 -10 10 30 50 70 clamping voltage (v) time (ns) t a = 25 o c. waveform iec61000 -4- 2 8kv contact discharge. measured with and corrected for 50 , 40db attenuator. 50 scope input impedance, 2ghz bw. esd gun return connected to esd ground plane. -5 0 5 10 15 20 25 30 35 0 5 10 15 20 25 tlp current (a) tlp voltage (v) transimission line pulse (tlp) settings: t p = 100ns, t r =0.2ns, i tlp and v tlp averaging window: t 1 =70ns to t 2 =90ns 0.01 0.1 1 10 0.1 1 10 100 1000 peak pulse power - p pp (kw) pulse duration - tp (s) dr040412 - 125 t a = 25 o c 0 20 40 60 80 100 120 0 25 50 75 100 125 150 % of rated power or i pp ambient temperature - t a ( o c) dr040512:25:125:150 esd clamping (8kv contact per iec 61000-4-2) tlp characteristic www.semtech.com
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 4 of 8 semtech typical characteristics (continued) capacitance vs. reverse voltage (pin 1 or pin 2 to pin 3) typical insertion loss (pin 1 to pin 2) typical insertion loss (pin 1 or pin 2 to pin 3) 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 1 2 3 4 5 6 junction capacitance - c j (pf) reversed voltage - v r (v) f = 1 mhz -15 -12 -9 -6 -3 0 1.e+07 1.e+08 1.e+09 insertion loss (db) frequency (hz) 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 1 2 3 4 5 6 junction capacitance - c j (pf) reversed voltage - v r (v) f = 1 mhz -9 -6 -3 0 1.e+07 1.e+08 1.e+09 insertion loss (db) frequency (hz) capacitance vs. reverse voltage (pin 1 to pin 2) analog crosstalk -80 -70 -60 -50 -40 -30 -20 -10 0 1.e+07 1.e+08 1.e+09 crosstalk (db) frequency (hz) www.semtech.com
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 application information 2 1 3 figure 1. pin confguration device connection options this device is optimized for protection of 1 line operating in excess of 3ghz. it may also be used to protect two lines operating in excess of 2.0ghz. the device is connected as follows: protection for one line with <1pf capacitance can be achieved by connecting one data line to either pin 1 or pin 2 with the other pin connected to ground. pin 3 is not connected. the connection to ground should be made directly to a ground plane. the path length should also be kept as short as possible to minimize parasitic inductance. protection of two lines is achieved by connecting data lines at pins 1 & 2. pin 3 is connected to ground. the connection to ground should be made directly to a ground plane. the path length should also be kept as short as possible to minimize parasitic inductance. matte tin lead finish matte tin has become the industry standard lead-free replacement for snpb lead fnishes. a matte tin fnish is composed of 100% tin solder with large grains. since the solder volume on the leads is small compared to the solder paste volume that is placed on the land pattern of the pcb, the refow profle will be determined by the requirements of the solder paste. therefore, these devices are compatible with both lead-free and snpb assembly techniques. in addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint.
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 6 of 8 semtech outline drawing - sc75 (sot-523) land pattern - sc75 (sot-523) e d b e c a1 a 0 . 30 0 . 20 1 . 75 0 .15 0 .10 1 .45 1 . 00 bsc - - 1 . 60 1 . 60 millimeters max 0 . 10 0 . 90 min dimensions 0 .00 nom 0 . 60 - - controlling dimensions are in millimeters ( angles in degrees ). notes: or gate burrs. dimensions "e 1" and "d" do not include mold flash , protrusions 3. 1. 1 . 70 1 .50 e 1 0 . 50 bsc l 1 (0 .40) a2 0 . 75 0 .60 0 . 80 e1 0 . 80 side view a bbb c a b b 0 . 85 0 .75 n 3 0 - 8 0 datums and to be determined at datum plane -a- -b- 2. -h- bbb 0 .20 aaa 0 .10 1 2 3 seating plane aaa c c see detail a d e1 e bxn a 1 a 2 a 0.25 gauge plane a detail 01 (l1) l h c dim l 0 .22 e e1 0 .10 0 .30 dim y z x c millimeters (1 . 40 ) 0 . 80 2 . 20 0 . 40 dimensions controlling dimensions are in millimeters (angles in degrees). this land pattern is for reference purposes only consult your manufacturing group to ensure your company' s manufacturing guidelines are met. notes: 1. 2. p1 p g (c) x g 0 . 60 p 1 . 00 p1 0 . 50 y z www.semtech.com
rclamp0502ba final datasheet rev 4.0 revision date 6/6/2017 7 of 8 semtech marking code p 5 yw 1 2 3 yw = date code tape and reel specifcation ordering information part number qty per reel reel size rclamp0502batct 3,000 7 p 5 yw p 5 yw p 5 yw www.semtech.com
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