Transient Voltage Suppression Diodes Axial Leaded 20000W > 20KPA series RoHS 20KPA Series Description The 20KPA Series is designed specically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Features SFF t )BMPHFO t X JODSFNFOU PBM TVSHF - resistance t P)4 DPNQMJBOU 3 t ZQJDBM * 5 less than 2A t ZQJDBM NBYJNVN 5 R above 49V temperature coefcient V = 0.1% x V 25C x T t VSF )JHI UFNQFSBU BR BR Agency Approvals soldering guaranteed: t IJQ BUFE D (MBTT QBTTJW 260C/40 seconds / junction in P600 package AGENCY AGENCY FILE NUMBER 0.375,(9.5mm) lead t 8 QFBL QVMTF length, 5 lbs., (2.3kg) capability at 101000s E230531 tension waveform, repetition rate t LBHF IBT 1MBTUJD QBD (duty cycles):0.01% Underwriters Laboratory t BTU SFTQPOTF UJNF Maximum Ratings and Thermal Characteristics Flammability classication typically less than 1.0ps O (T =25 C unless otherwise noted) 94V-O A from 0 Volts to BV min FBEoGSFF QMBUFE 5JO - t UF .BU t DFMMFOU DMBNQJOH &Y Parameter Symbol Value Unit capability Peak Pulse Power Dissipation by 10x1000s test waveform (Fig.1) P 20000 W PPM Applications (Note 1) Steady State Power Dissipation on TVS devices are ideal for the protection of I/O interfaces, P 8.0 W D ininite heat sink at T =75C (Fig. 5) L V bus and other vulnerable circuits used in telecom, CC Peak Forward Surge Current, 8.3ms computer, industrial and consumer electronic applications. Single Half Sine Wave Unidirectional I 400 A FSM only (Note 2) Operating Junction and Storage , T -55 to 175 C T J STG Temperature Range Typical Thermal Resistance Junction R 8.0 C/W uJL to Lead Typical Thermal Resistance Junction R 40 C/W uJA to Ambient Notes: O 1. Non-repetitive current pulse , per Fig. 3 and derated above T = 25 C per Fig. 2. A 2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per minute maximum. 2009 Littelfuse, Inc. 117 20KPA Series Specications are subject to change without notice. Revision: January 09, 2009 Please refer to Transient Voltage Suppression Diodes Axial Leaded 20000W > 20KPA series Electrical Characteristics Maximum Maximum Maximum Breakdown Test Reverse Agency Part Part Peak Reverse Clamping Voltage V BR Current Stand off Approval Number Number Pulse Leakage Voltage (Volts) I I Voltage V T T R (Uni) (Bi) Current I I V V I R R pp C PP (Volts) (mA) MIN (A) (V) ( A) 20KPA20CA 20 22.34 50 548.9 5000 36.8 X 20KPA20A 20KPA24A 20KPA24CA 24 26.81 50 490.3 5000 41.2 X 20KPA26CA 26 29.04 50 451.9 2000 44.7 X 20KPA26A 20KPA28A 20KPA28CA 28 31.28 50 420.8 1000 48.0 X 20KPA30CA 30 33.51 5 392.2 250 51.5 X 20KPA30A 20KPA32A 20KPA32CA 32 35.74 5 372.0 150 54.3 X 20KPA34CA 34 38.00 5 351.3 50 57.5 X 20KPA34A 20KPA36A 20KPA36CA 36 40.20 5 328.5 20 61.5 X 20KPA40CA 40 44.70 5 297.9 15 67.8 X 20KPA40A 20KPA44A 20KPA44CA 44 49.10 5 277.9 2 72.7 X 20KPA48CA 48 53.60 5 254.4 2 79.4 X 20KPA48A 20KPA52A 20KPA52CA 52 58.10 5 235.4 2 85.8 X 20KPA56A 20KPA56CA 56 62.60 5 218.1 2 92.6 X 20KPA60A 20KPA60CA 60 67.00 5 207.0 2 97.6 X 20KPA64A 20KPA64CA 64 71.50 5 194.2 2 104.0 X 20KPA68A 20KPA68CA 68 76.00 5 183.6 2 110.0 X 20KPA72A 20KPA72CA 72 80.40 5 174.1 2 116.0 X 20KPA80A 20KPA80CA 80 89.40 5 155.4 2 130.0 X 20KPA88A 20KPA88CA 88 98.30 5 142.3 2 142.0 X 20KPA96A 20KPA96CA 96 107.20 5 130.3 2 155.0 X 20KPA104A 20KPA104CA 104 116.20 5 120.2 2 168.0 X 20KPA112A 20KPA112CA 112 125.10 5 111.0 2 182.0 X 20KPA120A 20KPA120CA 120 134.00 5 104.1 2 194.0 X 20KPA132A 20KPA132CA 132 147.40 5 94.8 2 213.0 X 20KPA144A20KPA144CA 144 160.80 5 87.1 2 232.0 X 20KPA160A20KPA160CA 160 178.70 5 78.3 2 258.0 X 20KPA172A 20KPA172CA 172 192.10 5 72.9 2 277.0 X 20KPA180A 20KPA180CA 180 201.10 5 69.4 2 291.0 X 20KPA192A 20KPA192CA 192 214.50 5 65.4 2 309.0 X 20KPA204A 20KPA204CA 204 227.90 5 61.4 2 329.0 X 20KPA216A 20KPA216CA 216 241.30 5 58.0 2 348.0 X 20KPA232A 20KPA232CA 232 259.10 5 54.0 2 374.0 X 20KPA240A 20KPA240CA 240 268.10 5 52.2 2 387.0 X 20KPA256A20KPA256CA 256 286.00 5 49.0 2 412.0 X 20KPA280A 20KPA280CA 280 312.80 5 44.8 2 451.0 X 20KPA300A 20KPA300CA 300 335.10 5 41.8 2 483.0 X For bidirectional type having V of 40 volts and less, the I limit is double. RWM R For parts without A , the V is 10% and V is 5% higher than with A parts. BR C 2009 Littelfuse, Inc. 20KPA Series 118 Specications are subject to change without notice. Revision: January 09, 2009 Please refer to