L4 Series 400W Voltage Limiting Diodes a A range of medium power zener and avalanche surge suppressor diodes available to BS 9305-F-078 in a hermetically sealed DO29 glass package in both unipolar and bipolar configurations. f > P curge 3 __400W; 1mS expo P imax cont 1W V, 6.1 to 200V Top asta 55 to +175C a J 3.81 max dia (.35) (.15") 9.14 | r (1) 25. To ") 25. 7 min min OG Se Err (. T Case Outline DIM in mm DO29 (inches) 0.838 Polarity band @% dia (cathode) Available in the following configurations @ Double Normal anode a a 75 L4 Series a Reverse Reverse Max Clamping Breakdown Standoft Voltage at peak Max Typical Voltage Voltage pulse current Temp Capacitance Type B @l I@v V., @ Ipp Vv, @ Ipp of BY. ee v t R R cL CL (% per C) (pF) (Vv) (mA) ) (mA) (Vv) (A) (Vv) (A) ~C4B5.1 4.8-5.4 5 42 5 6.5 50 8.0 100 [-.02 1.4K L4B5.6 5.3-5.9 5 4.7 5 7.0 20 8.0 50 .01+.02 1.1K L4B6.2 5.8-6.6 5 5.2 2 8.0 20 10.0 -50 + .03 950 L4B6.8 6.4-7.2 5 5.7 1 8.5 20 10.5 50 + .04 850 L4B7.5 7.1-7.9 5 6.3 0.5 9.6 15 11.3 40 + .05 750 L4B8.2 7.7-8.7 5 6.9 0.2 10.0 12 12.1 37 + .06 650 L4B9.1 8.6-9.6 1 7.7 0.05 11.4 aml 13.4 33 + .06 600 L4B10 9.5-10.5 1 8.5 0.01 12.3 10 14.5 31 + .07 550 L4B11 10.4-11.6 1 9.3 0.01 13.3 9.6 15.6 29.0 + .07 475 L4B12 11.4-12.7 1 10.2 0.01 14.2 9.0 16.7 27.2 + .08 450 L4B13 12.4-14.1 1 11.1 0.01 15.4 8.3 18.2 24.8 + .08 400 L4B15 13.8-15.6 4 12.4 0.01 18.0 7.2 21.2 21.5 + .08 375 L4B16 15.3-17.1 1 13.7 0.01 19.1 6.7 22.5 20.3 + .08 350 L4Bi8 16.8-19.1 1 15.1 0.01 21.4 5.7 25.2 17.8 + .08 300 L4B20 18.8-21.2 1 16.9 0.01 "| 23.5 5.4 27.7 16.3 + .09 250 L4B22 20.8-23.3 1 18.7 0.01 26.0 4.9 30.6 14.8 + .09 200 L4B24 22.7-25.9 1 20.4 0.01 28.2 4.5 33.2 13.6 + .09 180 L4B27 25.1-28.9 1 22.5 0.01 31.8 4.0 37.5 12.1 + .09 150 L4B30 28.0-32.0 1 25.2 0.01 35.1 3.6 41.4 10.9 +.10 140- L4B33 31-35 1 27.9 0.01 38.8 3.3 45.7 10.0 +.10 130 L4B36 34-38 1 30.6 0.01 42.4 3.0 49.9 9.0 +.10 120 L4B39 37-41 1 33.2 0.01 45.8 2.8 53.9 8.5 +.10 110 L4B43 40-46 1 36.0 0.01 50.4 2.5 59.3 7.6 +.10 100 L4B47 44-50 1 39.6 0.01 55.0 2.3 64.8 7.0 +.11 67 L4B51 48-54 1 43.2 0.01 59.6 2.1 70.1 6.5 +.11 54 L4B56 52-60 1 46.8 0.01 65.5 2.0 77.0 6.0 +.11 49 L4B62 58-66 1 52.2 0.01 72.2 1.8 85.0 5.4 +.11 44 L4B68 64-72 1 57.6 0.01 78.2 1.6 92.0 5.0 +.11 40 L4B75 70-79 1 63 0.01 87.5 1.5 103 4.4 +.11 36 L4B82 77-87 1 69 0.01 96.0 1.3 113 4.0 +.11 33 L4B91 85-96 1 76 0.01 106 1.2 125 3.6 +.11 29 L4B100 94-106 1 84 0.01 116 1.1 137 3.3 +.11 27 L4B110 104-116 1 93 0.01 129 1.0 152 3.0 +.11 24 L4B120 114-127 1 102 0.01 140 0.9 165 2.7 +.11 21 L4B130 124-141 1 111 0.01 152 0.8 179 2.5 +.11 19 L4B150 138-156 1 124 0.01 175 0.7 207 2.2 +.11 17 L4B160 153-171 1 137 0.01 195 0.6 230 2.0 +.11 14 L4B180 168-191 1 151 0.01 209 0.6 246 1.8 +.11 13 L4B200 188-212 1 169 0.01 233 0.5 274 1.6 +.11 12 ee 76 Voltage Limiting Diodes. L4 Series peak pulse power rating curve 100 10 wave-form Peak Pulse Power (Pp) in KW 0.1Kw 100 ns lus 10us 100us ims 10 ms ; Pulse Time (tp) . Note: Peak power defined as peak voltage times peak current Peak power derating curve Power Derating Curve Peak power % 100% Permissible area of operation Permissible area of operation 50% -50 25 0 25 50 75 100 125 150 175C -50 -25 0 25 50 75 100 125 150 175C Tamb (C) Tamb (C) Mounted on soldering tags at a lead length of 10mm a 77 4 Series Code Interpretation/Ordering Information Limiter Nominal Voltage | Bipol L 4 B10 ____ Device series | | Voltage tolerance t i T T qT ~T A=+1% H=+2% B=+5% C=+10% D=+15% Mechanical characieristics CASE: Hermetically sealed DO29 outline FINISH: All external surfaces are corrosion resistant and leads solderable IDENTIFICATION: Body marked with Type No.and logo POLARITY: Cathode marked with band WEIGHT: 0.47 grammes approximately Electrical Characteristics FORWARD VOLTAGE Vf 1.1v max at If <1A Vz measured with pulse <20mS Turn-on time Unipolar <10-'2S Bipolar <5x10~-9S All electrical characteristics 25C unless otherwise stated. SE/AIFSH mmm 78