july 2005 / c page 1 semiconductor tak cheong ? 500 mw ll-34 hermetically sealed glass zener voltage regulators absolute maximum ratings t a = 25c unless otherwise noted parameter value units power dissipation 500 mw storage temperature range -65 to +200 c operating junction temperature +200 c these ratings are limiting values above which the serviceability of the diode may be impaired. specification features: ? zener voltage range 2.0 to 56 volts ? ll-34 (mini-melf) package ? surface device type mounting ? hermetically sealed glass ? compression bonded construction ? all external surfaces are corrosion resistant and leads are readily solderable ? 1 st band indicates negative polarity electrical characteristics t a = 25c unless otherwise noted v z @ i zt (volts) device type v z min v z max 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) tcbzv79c 2v0 1.88 2.12 5 100 1 600 150 1 tcbzv79c 2v2 2.08 2.33 5 100 1 600 150 1 tcbzv79c 2v4 2.28 2.56 5 100 1 600 100 1 tcbzv79c 2v7 2.51 2.89 5 100 1 600 75 1 tcbzv79c 3v0 2.8 3.2 5 95 1 600 50 1 tcbzv79c 3v3 3.1 3.5 5 95 1 600 25 1 tcbzv79c 3v6 3.4 3.8 5 90 1 600 15 1 tcbzv79c 3v9 3.7 4.1 5 90 1 600 10 1 tcbzv79c 4v3 4 4.6 5 90 1 600 5 1 tcbzv79c 4v7 4.4 5 5 80 1 500 3 2 tcbzv79c 5v1 4.8 5.4 5 60 1 480 2 2 tcbzv79c 5v6 5.2 6 5 40 1 400 1 2 tcbzv79c 6v2 5.8 6.6 5 10 1 150 3 4 tcbzv79c 6v8 6.4 7.2 5 15 1 80 2 4 tcbzv79c 7v5 7 7.9 5 15 1 80 1 5 tcbzv79c 8v2 7.7 8.7 5 15 1 80 0.7 5 tcbzv79c 9v1 8.5 9.6 5 15 1 100 0.5 6 tcbzv79c 10 9.4 10.6 5 20 1 150 0.2 7 tcbzv79c 11 10.4 11.6 5 20 1 150 0.1 8 tcbzv79c 12 11.4 12.7 5 25 1 150 0.1 8 tcbzv79c 13 12.4 14.1 5 30 1 170 0.1 8 tcbzv79c 15 13.8 15.6 5 30 1 200 0.05 10.5 tcbzv79c 16 15.3 17.1 5 40 1 200 0.05 11.2 cathode anode electrical symbol device marking diagram cathode band color : blue surface mount ll34 tcbzv79c2v0 through tcbv79c56 series
july 2005 / c page 2 semiconductor tak cheong ? electrical characteristics t a = 25c unless otherwise noted v z @ i zt (volts) device type v z min v z max 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) tcbzv79c 18 16.8 19.1 5 45 1 225 0.05 12.6 tcbzv79c 20 18.8 21.2 5 55 1 225 0.05 14 tcbzv79c 22 20.8 23.3 5 55 1 250 0.05 15.4 tcbzv79c 24 22.8 25.6 5 70 1 250 0.05 16.8 tcbzv79c 27 25.1 28.9 2 80 0.5 300 0.05 18.9 tcbzv79c 30 28 32 2 80 0.5 300 0.05 21 tcbzv79c 33 31 35 2 80 0.5 325 0.05 23.1 tcbzv79c 36 34 38 2 90 0.5 350 0.05 25.2 tcbzv79c 39 37 41 2 130 0.5 350 0.05 27.3 tcbzv79c 43 40 46 2 150 0.5 375 0.05 30.1 tcbzv79c 47 44 50 2 170 0.5 375 0.05 32.9 tcbzv79c 51 48 54 2 180 0.5 400 0.05 35.7 tcbzv79c 56 52 60 2 200 0.5 425 0.05 39.2 v f forward voltage = 1.5 v maximum @ i f = 100 ma for all types notes: 1. the type numbers listed have zener voltage min/max limits as shown. 2. for detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighte r voltage tolerances, contact your nearest tak cheong electronics representative. 3. 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 to i zt or i zk. electrical symbol definition typical characteristics symbol parameter v z reverse zener voltage @ i zt i zt reverse current z zt maximum zener impedance @ i zt i zk reverse current z zk maximum zener impedance @ i zk i r reverse leakage current @ v r v r breakdown voltage i f forward current v f forward voltage @ i f ordering information device pack option package quantity tcbzv79cxxx 7? reel tape and reel 2500 tcbzv79cr13 13? reel tape and reel 10,000 tcbzv79cxxx others (?contact tak cheong sales representatives) ll34 (mini-melf) tape packaging standards this standard practices for surface-mount tape packaging of leadless (mini-melf) components meets the requirements of eia stand ard rs-481-a. v i (mv) (v) (ma) (ma) v f i f v r i r v z i zt (na)
july 2005 / c page 3 semiconductor tak cheong ? ll-34 (mini-melf) tape & reel packaging information label antistatic cover tape static dissipative embossed carrier tape cathode label ll34 unit orientation carrier tape cover tape trailer tape 80mm minimum or 20 empty pockets. leader tape 500mm minimum or 125 empty pockets. components packaging description: ll34 parts are shipped in tape and reel. the carrier tape is made from a dissipative (carton filled) polycarbonate resin. the cover tape is a multiplayer film (heat activated adhesive in nature) primarily composed of polyester film, adhesive layer, sealant, and anti-static sprayed agent. these reeled parts in standard option are shipped with 2,500 units per 7? or 178mm diameter reel. the reels are blue in color and made of recyclable plastic. other option comes in 10,000 units per 13? or 330mm diameter reel ll-34 packaging outline ll-34 leader and trailer
july 2005 / c page 4 semiconductor tak cheong ? ll-34 (mini-melf) tape & reel packaging information ll-34 reel outline dimensions are in millimeters tape size qty option dim a dim b dim c dim d dim n w1 w2 w3 2,500 178 1.5 13 20.2 55 8.4 14.4 7.9 ? 10.9 8mm 10,000 330 1.5 13 20.2 100 8.4 14.4 7.9 ? 10.9
july 2005 / c page 5 semiconductor tak cheong ? package outline package case outline ll34 ll-34 millimeters inches dim min max min max a 3.302 3.505 0.130 0.138 b 1.397 1.499 0.055 0.059 c 0.350 0.500 0.014 0.020 notes: 1. ll34 polarity denoted by a band. 2. ?expansion gap? has no relation to the location of polarity.
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