bourns ? tbu ? high-speed protectors short form brochure
2 tbu-based solution device selection step 1: current characterization: determine the peak system operating current and maximum operating ambient temperature. use the tbu? device data sheets trigger current versus temperature derating curve to determine the tbu? device derating value.? step 2: overvoltage selection: select an overvoltage device that has the lowest available dc breakdown voltage greater than the normal system voltages and any expected ac power faults. fe selected device must also be capable of handling the required lightning current. step 3: tbu? device selection: choose a tbu? device with a maximum impulse voltage (v imp ) greater than the maximum impulse breakover or clamping voltage of the selected overvoltage protector. fe selected tbu? device must also have a?minimum specifed i trigger above the maximum peak system operating current compensating for the temperature derating. step 4: tertiary protection: in most applications, the protected circuit sources sufcient current to trigger the tbu? device.?if the protected circuit impedance is high, a small avalanche diode to ground or small signal diodes clamping to the power supply rails may be placed afer the tbu? device. fis will ensure that the tbu? device triggers, preventing the voltage at the interface from rising to unsafe levels. basic tbu ? device operation bourns? tbu? high-speed protectors are circuit protection devices constructed using mosfet semiconductor technology. when placed in series in the system, the tbu? protector monitors the current fowing through the line. if the current exceeds a preset level, the tbu? device triggers, providing an efective barrier to large, destructive voltages or currents during surge events, thereby protecting sensitive electronics. fe tbu? device operates in approximately 1 s - once line current exceeds the tbu? devices trigger current i trigger . when operated, the tbu? device restricts line current to less than 1 ma typically, and blocks voltages including the surge up to rated limits. afer the surge, the tbu? automatically resets itself when the voltage across the tbu? device falls to the v reset or below. ferefore, the tbu? device will automatically reset on lines which have no dc bias or have dc bias below v reset (such as unpowered signal lines). if the line has a normal dc bias above v reset , the voltage across the tbu? device may not fall below v reset afer the surge. in such cases, special care needs to be taken to ensure that the tbu? device will reset; sofware monitoring may be used to accomplish this task. bourns application engineers can provide further assistance. key features: ? tbu? device is used in series with the line ? tbu? device is triggered by current rise ? tbu? device can block voltages up to 850 v, enabling easy coordination ? tbu? device provides superior protection in less than 1 s ? tbu? device resets on voltage ? tbu? device ofers an extremely low capacitance per line key benefts: ? high-speed performance ? blocks voltages and currents ? extremely low let-through energy of 100 nj ? self-resetting on non-dc biased lines ? very high bandwidth up to 3 ghz ? small size in dfn package ? tbu-pl & tbu-pk series ofer voltage triggering ? smallest pcb area ? ultra low profle bourns ? tbu ? product overview tbu-vi curve i i op fo rw ar d t rigger c urren t residual reset c urren t reset v oltage th reshold reset v oltage th reshold rev erse t rigger c urren t 1/r -i op v
3 line 1 slic tbu mov-10d201k tbu-pl060-100-wh mov-10d201k line 1 line 2 gnd -vba t line 2 slic bourns ? tbu ? product examples t1/e1 interface voice voice protection solution selection guide vdsl t1/e1 physic al line inter face unit t1a tr ansformer t1b cm t ransformer 1 1 1 2 3 4 8 7 6 5 tbu1 fuse 1.25 a tx ti p tx ring p850-u t tip tring rt ip rring fuse 2031-42t -sm 2031-42t -sm 1.25 a tbu1 fuse 1.25 a rx ti p rx ring p850-u fuse 1.25 a vdsl driv er tbu-ca050-500-wh 2031-15t -sm c1a c1b industry standard surge & ac withstand bourns? tbu? device selection tbu? device part number qty ovp device part number qty telcordia gr-1089-core intra-building port type 4 1500 v, 100 a 2/10 s 120 v rms , 25 a, 900 s tbu-pl050-100-wh 1 mov-07d201k 2 telcordia gr-1089-core intra-building port type 4a 1000 v, 100 a 10/1000 s 120 v rms , 25 a, 900 s tbu-pl060-100-wh 1 mov-10d201k 2 non-gr-1089-core intra- building specifcations 5000 v, 500 a 2/10 s 230 v rms , 25 a, 900 s tbu-pl085-100-wh 1 mov-10d361k 2 1500 v, 100 a 2/10 s 275 v rms , 25 a, 900 s tbu-pl085-100-wh 1 mov-10d431k 2 itu-t basic k.20, k.21, k.45 4000 v, 40 10/700 s 230 v rms 10 - 1000 , 900 s 600 v rms 600 , 0.2 s tbu-pl075-100-wh 1 mov-10d361k 2 4000 v, 40 10/700 s 230 v rms 10 -1000 , 900 s 600 v rms 600 , 0.1 s tbu-pl060-100-wh 1 tisp4400m3bj 2 itu-t enhanced k.20, k.21, k.45 6000 v, 40 10/700 s 240 v rms 10 - 1000 , 900 s 600 v rms 600 , 0.2 s 600 v rms 600 , 1 s* 1500 v rms , 200 , 2 s* tbu-pl085-100-wh 1 mov-10d391k 2 6000 v, 40 10/700 s 240 v rms 10 - 1000 , 900 s 600 v rms 600 , 1 s 1500 v rms , 200 , 2 s tbu-pl060-100-wh 1 tisp4500h3bj 2 * gdt special test protector with dc breakdown (dcbd) of less than 330 v. notes: 1) the le9500, le9520 and le9530 (ve950 series) require a 200 ma i trigger tbu ? device for normal operation. other slic types should use the 100 ma device. 2) the mov maximum continuous rms voltage rating should not be exceeded. the exception is where the data sheet highlights withstand capability such as the 600 v rms, 1 a for 0.2 s, for example. 3) if en55024 emc compliance is required, the tbu ? device may require capacitors to be ftted between the tip and ring connections and ground (i.e. in parallel with the mov device). the capacitance value can be chosen to meet levels as follows: ? 10 nf for en55024 level 1 ? 20 nf for en55024 level 2 ? 47 nf for en55024 level 3 selection of capacitor voltage rating depends upon tbu ? part number selection. recommendations include: ? tbu-pl050 & tbu-pl060 series: 120 vac, 500 v peak surge rated ? tbu-pl075 & tbu-pl085 series: 240 vac, 750 v peak surge rated depending upon the slic type, it is usually possible to remove any emi capacitors present between the output of the slic and ground when using capacitors c1 and c2 in parallel with the movs. review voice protection solution selection guide to select tbu? and overvoltage part numbers to meet protection industry standard.
4 bourns ? tbu ? product examples rs232 interface rs422 interface intelligent transport system microwave link rs485 interface canbus intrinsically safe sensor video surveillance tbu- c a065-200-wh smbj26c a rs232 2031-23t -sm tbu- c a065-300-wh cdsot23-sm712 rs485 mov-10d201 k mov-10d201 k tbu- c a065-100-wh smbj12c a rs422 mov-10d201 k tbu- c a065-100-wh smbj12c a c anbus 2031-23t -sm diode v oltage dependent on canbus driv er r esistibilit y. t ypically 6 - 20 v, check speci?cation. composit e video tbu- c a065-100-wh 75 coax 75 2031-23t -sm tbu- c a065-100-wh 500 sma j26a equipment line hv lp filter 2031-15t -sm tbu-ca025-300-wh dc or ac po we r if t x/r x protec tion for higher pow er split mounted if feed equipmen t tbu- c a065-100-wh 2031-23t -sm cdsod323- t05l c sdi
5 part number maximum ratings operating characteristics device size (mm) form factor v imp (v) v rms (v) i trigger min. (ma) i trigger max. (ma) t block (s) r typ () p40-g240-wh 40 28 240 480 0.2 3.6 4.00 x 4.00 tbu-pl050-100-wh 500 300 100 200 1 50 6.50 x 4.00 l501 c954 tbu-pl050-200-wh 500 300 200 400 1 50 tbu-pl060-100-wh 600 350 100 200 1 50 tbu-pl060-200-wh 600 350 200 400 1 50 tbu-pl075-100-wh 750 400 100 200 1 50 tbu-pl075-200-wh 750 400 200 400 1 50 tbu-pl085-100-wh 850 425 100 200 1 50 tbu-pl085-200-wh 850 425 200 400 1 50 tbu-pk050-100-wh 500 300 100 200 1 80 6.50 x 4.00 k501 c959 tbu-pk060-100-wh 600 425 100 200 1 80 tbu-pk085-100-wh 850 425 100 200 1 80 tbu-pl, tbu-pk & p40 product families tbu ? lightning surge protection tbu ? power fault protection bidirectional dual tbu ? protectors 100 v/div . 100 v/div . 200 ma/div . 200 ma/div . 4 ms/div . 1 s/div . 1 1 2 2 3 3 ch1 v1 ch2 v2 ch3 curren t ch1 v1 ch2 v2 ch3 curren t v imp maximum peak impulse voltage withstand with duration less than 10 ms. v rms maximum continuous alternating current rms voltage. i trigger minimum and maximum current required for the device to go from operating state to protected state. t block maximum time for the device to go from normal operating state to protected state. r typ typical series resistance of the tbu? device. consult factory for alternate specifcation values. see data sheet for detailed specifcation s.
6 bidirectional single tbu ? protectors part number maximum ratings operating characteristics device size (mm) form factor v imp (v) v rms (v) i trigger min. (ma) i trigger max. (ma) t block (s) r typ () tbu-ca025-050-wh 250 100 50 100 1 13.3 6.50 x 4.00 a5050 e075 tbu-ca025-100-wh 250 100 100 200 1 7.1 tbu-ca025-200-wh 250 100 200 400 1 4.2 tbu-ca025-300-wh 250 100 300 600 1 3.2 tbu-ca025-500-wh 250 100 500 1000 1 2.6 tbu-ca040-050-wh 400 200 50 100 1 14.3 tbu-ca040-100-wh 400 200 100 200 1 8.1 tbu-ca040-200-wh 400 200 200 400 1 5.2 tbu-ca040-300-wh 400 200 300 600 1 4.3 tbu-ca040-500-wh 400 200 500 1000 1 3.6 tbu-ca050-050-wh 500 250 50 100 1 15.7 tbu-ca050-100-wh 500 250 100 200 1 9.5 tbu-ca050-200-wh 500 250 200 400 1 6.6 tbu-ca050-300-wh 500 250 300 600 1 5.6 tbu-ca050-500-wh 500 250 500 1000 1 5.0 tbu-ca065-050-wh 650 300 50 100 1 17.7 tbu-ca065-100-wh 650 300 100 200 1 11.5 TBU-CA065-200-WH 650 300 200 400 1 8.6 tbu-ca065-300-wh 650 300 300 600 1 7.6 tbu-ca065-500-wh 650 300 500 1000 1 7.0 tbu-ca085-050-wh 850 425 50 100 1 21.4 tbu-ca085-100-wh 850 425 100 200 1 15.2 tbu-ca085-200-wh 850 425 200 400 1 12.3 tbu-ca085-300-wh 850 425 300 600 1 11.3 tbu-ca085-500-wh 850 425 500 1000 1 10.7 tbu-cx025-vtc-wh 250 100 500 1000 1 2.6 8.25 x 4.00 cx85 007 5 tbu-cx040-vtc-wh 400 200 500 1000 1 3.6 tbu-cx050-vtc-wh 500 250 500 1000 1 5.0 tbu-cx065-vtc-wh 650 300 500 1000 1 7.0 tbu-cx085-vtc-wh 850 425 500 1000 1 10.7 tbu-ca & tbu-cx product families
7 unidirectional single tbu ? protectors unidirectional dual tbu ? protectors part number maximum ratings operating characteristics device size (mm) form factor v imp (v) v rms (v) i trigger min. (ma) i trigger max. (ma) t block (s) r typ () tbu-ke025-050-wh 250 100 50 100 1 12.5 5.00 x 2.50 e2550 0072 tbu-ke025-100-wh 250 100 100 200 1 6.3 tbu-ke025-200-wh 250 100 200 400 1 3.4 tbu-ke025-300-wh 250 100 300 600 1 2.4 tbu-ke025-500-wh 250 100 500 1000 1 1.8 tbu-ke040-050-wh 400 200 50 100 1 13.0 tbu-ke040-100-wh 400 200 100 200 1 6.8 tbu-ke040-200-wh 400 200 200 400 1 3.9 tbu-ke040-300-wh 400 200 300 600 1 3.0 tbu-ke040-500-wh 400 200 500 1000 1 2.3 tbu-ke050-050-wh 500 250 50 100 1 13.7 tbu-ke050-100-wh 500 250 100 200 1 7.5 tbu-ke050-200-wh 500 250 200 400 1 4.6 tbu-ke050-300-wh 500 250 300 600 1 3.6 tbu-ke050-500-wh 500 250 500 1000 1 3.0 part number maximum ratings operating characteristics device size (mm) form factor v imp (v) v rms (v) i trigger min. (ma) i trigger max. (ma) t block (s) r typ () tbu-dt065-100-wh 650 300 100 200 1 8.5 5.00 x 5.00 t855 0074 tbu-dt065-200-wh 650 300 200 400 1 5.6 tbu-dt065-300-wh 650 300 300 600 1 4.6 tbu-dt065-500-wh 650 300 500 1000 1 4.0 tbu-dt085-100-wh 850 425 100 200 1 10.3 tbu-dt085-200-wh 850 425 200 400 1 7.4 tbu-dt085-300-wh 850 425 300 600 1 6.8 tbu-dt085-500-wh 850 425 500 1000 1 5.8 tbu-ke product family tbu-dt product family
tbu is a registered trademark of bourns, inc. in the u.s., taiwan and european community. bourns is a registered trademark of bourns, inc. in the u.s. and other countries. copyright? 2012, bourns, inc. ? wag ? 3/12 ? 5m/fu1206 country phone fax americas: +1-951-781-5500 +1-951-781-5006 brazil: +55 11 5505 0601 +55 11 5505 4370 china: +86 21 64821250 +86 21 64821249 europe: +41 (0)41 768 5555 +41 (0)41 768 5510 japan: +81 49 269 3204 +81 49 269 3297 singapore: +65 6348 7227 +65 6348 1272 taiwan: +886 2 25624117 +886 2 25624116 other asia-pacifc countries: +886 2 25624117 +886 2 25624116 technical assistance region phone fax asia-pacifc: +886 2 25624117 +886 2 25624116 europe, middle east, africa: +41 (0)41 768 5555 +41 (0)41 768 5510 americas: +1-951-781-5500 +1-951-781-5700 www.bourns.com bourns? products are available through an extensive network of manufacturers representatives, agents and distributors. to obtain technical applications assistance, a quotation, or to place an order, contact a bourns representative in your area. specifcations subject to change without notice. actual performance in specifc customer applications may difer due to the infuence of other variables. customers should verify actual device performance in their specifc applications. worldwide sales ofces
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