*rohs directive 2002/95/ec jan 27 2003 including annex specifications are subject to change without notice. customers should verify actual device performance in their specific applications. cdnbs08-usbxb series - steering diode/tvs array combo features lead free as standard rohs compliant* protects 2 i/o ports esd protection > 40 kv low capacitance: 15 pf applications ethernet ?10/100 base t computer i/o ports ? scsi, firewire & usb set-top box protection video cards general information electrical characteristics (@ t a = 25 ? unless otherwise noted) thermal characteristics (@ t a = 25 ? unless otherwise noted) the markets of portable communications, computing and video equipment are challenging the semiconductor industry to develop increasingly smaller electronic components. bourns offers steering diode/transient voltage suppressor array combination diodes for surge and esd protection applications in an 8 lead narrow body soic package size format. bourns chip diodes conform to jedec standards, are easy to handle on standard pick and place equipment and their flat configuration minimizes roll away. the bourns device will meet iec 61000-4-2 (esd), iec 61000-4-4 (eft) and iec 61000-4-5 (surge) requirements. parameter symbol max. unit operating temperature t j -55 to +150 ? storage temperature t stg -55 to +150 ? notes: 1. see pulse wave form. 2. see peak pulse power vs. pulse time. 3. electrical specifications refer to pins 1 to 4 or pin 5 to pin 8. 8765 1234 parameter symbol cdnbs08- unit usb3b usb6b breakdown voltage @ 1 ma v br 4.0 6.0 v working peak voltage v wm 3.3 5.25 v maximum clamping voltage v c @ i p 1 v f 6.0 7.0 v maximum clamping voltage @ 8/20 ? v c @ i pp 1 v f 12.9 v @ 37 a 13.2 v @ 35 a v maximum leakage current @ v wm i d 125 10 ? maximum cap bidirectional @ 0 v, 1 mhz c j(sd) 15 pf peak pulse power (tp = 8/20 ?) 2 p pp 500 w *rohs compliant
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. cdnbs08-usbxb series - steering diode/tvs array combo a b c d e f g h millimeters (inches) dimensions = ab c d e dimensions a 4.80 - 5.00 (0.189 - 0.196) b 3.80 - 4.00 (0.150 - 0.157) c 5.80 - 6.20 (0.229 - 0.244) d 1.35 - 1.75 (0.054 - 0.068) e 0.10 - 0.25 (0.004 - 0.008) f 0.25 - 0.50 (0.010 - 0.019) g 0.40 - 1.250 (0.016 - 0.049) h 0.18 - 0.25 (0.007 - 0.009) dimensions a 1.143 - 1.397 (0.045 - 0.055) b 0.635 - 0.889 (0.025 - 0.035) c 6.223 (0.245) min. d 3.937 - 4.191 (0.155 - 0.165) e 1.016 - 1.27 (0.040 - 0.050) this is a molded jedec narrow body so-8 package with lead free 100 % sn plating on the lead frame. it weighs approximately 15 mg and has a flammability rating of ul 94v-0. recommended footprint how to order cd nbs08 - usb 3 b common code chip diode package ?nbs08 = narrow body soic8 package model usb = specific usb port device minimum breakdown voltage 3 = 3.0 v br (volts) configuration b = 2 steering diodes + 1 tvs diode product dimensions
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. cdnbs08-usbxb series - steering diode/tvs array combo performance graphs peak pulse power vs pulse time 10,000 1,000 100 10 1 0.01 10 100 10,000 1,000 p pp ?peak pulse power (w) t d ?pulse duration (?) 500 w, 8/20 ? waveform pulse wave form 20 40 60 80 100 120 0 030 25 20 15 10 5 i pp ?peak pulse current (% of i pp ) t ?time (?) test waveform parameters t t = 8 ? t d = 20 ? t t e t t d = t | i pp /2 power derating curve 0 20 40 60 80 100 0 25 50 75 100 125 150 % of rated power t l ?lead temperature (?) average power peak pulse power 8/20 ? block diagram 8765 1234 device pinout pin function 1 v cc 2 i/o 1 3 i/o 2 4 gnd 5 v cc 6 i/o 1 7 i/o 2 8 gnd typical part marking CDNBS08-USB3B ......................................................................prq cdnbs08-usb6b ......................................................................prr
specifications are subject to change without notice. customers should verify actual device performance in their specific applications. cdnbs08-usbxb series - steering diode/tvs array combo packaging the surface mount product is packaged in a 12 mm x 8 mm tape and reel format per eia-481 standard. 2.0 ?0.05 (.08 ?.002) 0.3 ?0.05 (.01 ?.002) 9.0 ?0.1 (.354 ?.004) 6.4 ?0.1 (.252 ?.004) 1.75 ?0.1 (.07 ?.004) 5.5 ?0.3 (.22 ?.01) 12.0 ?0.3 (.47 ?.01) 2.1 ?0.1 (.083 ?.004) orientation of component in pocket backside facing up top side view (into component pocket) 0.3 (0.01) 4.0 ?0.1 (.16 ?.004) 8.0 ?0.3 (.31 ?.01) 0.25 (0.010) typ. r 1.5 ?0.1/-0 (.06 ?.004/-0) dia. max. r dimensions = millimeters (inches) reliable electronic solutions asia-pacific: tel: +886-2 2562-4117 ?fax: +886-2 2562-4116 europe: tel: +41-41 768 5555 ?fax: +41-41 768 5510 the americas: tel: +1-951 781-5500 ?fax: +1-951 781-5700 www.bourns.com copyright?2005, bourns, inc. litho in u.s.a., ipa0524 10/05
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