number: db - 031 july 2010 / g page 1 tak cheong ? s em ic ond uc tor 1 watt do - 41 hermetically sealed glass zener voltage regulators absolute maximum ratings t a = 25c unless otherwise noted parameter value units storage temperature range - 65 to +20 0 c maximum junction operating temperature +200 c total device dissipation 1.0 watt thermal resistance junction to lead 53.5 c / w thermal resistance junction to ambient 100 c / w these ratings are limiting values above which the serviceab ility of the diode may be impaired. specification features: ? zener voltage range 3.3 to 56 volts ? through - hole device type mounting ? hermetically sealed glass ? compression bonded construction ? all e xternal s urfaces a re c orrosion r esistant a nd l eads a re r ead ily s olderable ? rohs compliant ? solder hot dip tin (sn) terminal f inish ? cathode i ndicated b y p olarity b and electrical characteristics t a = 25c unless otherwise noted device type v z @ i zt (volts) nominal i zt (ma) z zt @ i zt ( ? ) max i zk (ma) z z k @ i zk ( ? ) max i r @ v r ( ? a) max v r (volts) tc1n4728a 3.3 76 10 1 400 100 1 tc1n4729a 3.6 69 10 1 400 100 1 tc1n4730a 3.9 64 9 1 400 50 1 tc1n4731a 4.3 58 9 1 400 10 1 tc1n4732a 4.7 53 8 1 500 10 1 tc1n4733a 5.1 49 7 1 550 10 1 tc1n4734a 5.6 45 5 1 600 10 2 tc1n4735a 6.2 41 2 1 700 10 3 tc1n4736a 6.8 37 3.5 1 700 10 4 tc1n4737a 7.5 34 4 0.5 700 10 5 tc1n4738a 8.2 31 4.5 0.5 700 10 6 tc1n4739a 9.1 28 5 0.5 700 10 7 tc1n4740a 10 25 7 0.25 700 10 7.6 tc1n4741a 11 23 8 0.25 700 5 8.4 tc1n4742a 12 21 9 0.25 700 5 9.1 tc1n4743a 13 19 10 0.25 700 5 9.9 tc1n4744a 15 17 14 0.25 700 5 11.4 cathode anode electrical symb ol tc1n4728a through tc1n4758a axial lead do41 l 1n 47 xx t device marking diagram l : logo device code : tc 1n47xx t vz tolerance (t) : a = 5% c = 2%
number: db - 031 july 2010 / g page 2 tak cheong ? s em ic ond uc tor electrical characteristics t a = 25c unless otherwise noted device type v z @ i zt (volts) nominal i zt (ma) z zt @ i zt ( ? ) max i zk (ma) z zk @ i zk ( ? ) max i r @ v r ( ? a) max v r (volts) tc1n4745a 16 15.5 16 0.25 700 5 12.2 tc1n4746a 18 14 20 0.25 700 5 13.7 tc1n4747a 20 12.5 22 0.25 750 5 15.2 tc1n4748a 22 11.5 23 0.25 750 5 16.7 tc1n4749a 24 10.5 25 0.25 750 5 18.2 tc1n4750a 27 9.5 35 0.25 750 5 20.6 tc1n4751a 30 8.5 40 0.25 1000 5 22.8 tc1n4752a 33 7.5 45 0.25 1000 5 25.1 tc1n4753a 36 7 50 0.25 1000 5 27.4 tc1n4754a 39 6.5 60 0.25 1000 5 29.7 tc1n4755a 43 6 70 0.25 1500 5 32.7 tc1n4756a 47 5.5 80 0.25 1500 5 35.8 tc1n4757a 51 5 95 0.25 1500 5 38.8 tc1n4758 a 56 4.5 110 0.25 2000 5 42.6 v f forward voltage = 1.2 v maximum @ i f = 200 ma for all types notes: 1. tolerance and type number designation (v z ) the type numbers listed have a standard tolerance on the nominal zener voltage of 5%. device tolerance o f ? 2 % is indicated by a c instead of an a . 2. specials available include nominal zener voltages between the voltages shown and tigh t er voltage, for detailed information on price, availability and delivery, contact you nearest tak cheong representative. 3. zener voltage (v z ) measurement the zener voltage ( v z ) is tested under pulse condition. 4. zener impedance (z z ) derivation the zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (i zt or i zk ) is superimposed on i zt or i zk.
number: db - 031 july 2010 / g page 3 tak cheong ? s em ic ond uc tor typical characteristics ta = 25 0.1 1 10 100 1000 0 0.2 0.4 0.6 0.8 1 1.2 vf - forw ard voltage [v] forward current [ma] ta = 25 0.1 1 10 100 1000 0 3 6 9 12 15 vz - reverse voltage [v] reverse current [ma] ta = 25 0.01 0.1 1 10 100 10 20 30 40 50 60 70 vz - reverse voltage [v] reverse current [ma] ta = 25 0.1 1 10 100 1000 0 10 20 30 40 50 60 vz - reverse voltage [v] differential zener impedance [] iz=10ma iz=5ma iz=2ma iz=1ma f = 1mhz ta = 25 1 10 100 1000 0 5 10 15 20 25 30 35 40 45 50 55 60 vz - reverse voltage [v] total capacitance [pf] vr = 0v vr = 2v vr = 5v vr = 20v vr = 30v 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 20 40 60 80 100 120 140 160 180 200 temperature [ ] pd-powe r pa ssip atio n [w] figure 1. power dissipation vs ambient temperature valid provided leads at a distance of 0.8mm from case are kept at ambient temperature figure 2. total capacitance figure 5. reverse current vs. reverse voltage figure 6. reverse current vs. reverse voltage figure 3. differential impedance vs. zener voltage figure 4. forward current vs. f orward voltage
number: db - 031 july 2010 / g page 4 tak cheong ? s em ic ond uc tor package outline package case outline do - 41 d0 - 41 millimeters inches dim min max min max a 0. 68 0.8 1 0.02 7 0.03 2 b 3.70 4.25 0.1 46 0. 167 c 25.40 --- 1.000 --- d 2. 10 2.60 0.08 3 0.10 2 notes: . 1. do41 polarity denoted by cathode band.
number: db-100 april 14, 2008 / a disclaimer notice tak cheong ? notice the information presented in this document is for reference only. tak cheong reserves the right to make changes without notice for the specification of the products displayed herein. the product listed herein is designed to be used with ordinary electronic equipment or devices, and not designed to be used with equipment or devices which require high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controlle rs and other safety devices), tak cheong semiconductor co., ltd., or anyone on its behalf, assumes no responsi bility or liability for any damagers resulting from such improper use of sale. this publication supersedes & replaces all information reviously supplied. for additional information, please visit our website http://www.takcheong.com , or consult your nearest tak cheong?s sales office for further assistance.
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