1N3305B THRU 1N3350B
SILICON ZENER DIODES
6.8 VOLT THRU 200 VOLT
50W, 5% TOLERANCE
DESCRIPTION:
The CENTRAL SEMICONDUCTOR 1N3305B series
types are silicon Zener diodes manufactured in a
hermetically sealed metal case, designed for high
reliability industrial applications. Also available in
reverse polarity connection (replace “B” suffix with “RB”
suffix in part number - ex. 1N3305RB).
MAXIMUM RATINGS: (TC=75°C) SYMBOL UNITS
Power Dissipation PD 50 W
Operating and Storage Junction Temperature TJ, Tstg -65 to +175 °C
Thermal Resistance ΘJC 2.0 °C/W
ELECTRICAL CHARACTERISTICS: (TC=30°C unless otherwise noted) VF=1.5V MAX @ IF=10A
TYPE
ZENERVOLTAGE
VZ @ IZT
TEST
CURRENT
MAXIMUM ZENER
IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
ZENER
CURRENT
(TC=75°C MAX)
TYPICAL
TEMPERATURE
COEFFICIENT
MIN NOM MAX IZT ZZT @ IZT ZZK @ IZK IR @ VRIZM VZ
V V V mA Ω Ω mA μA V mA %/°C
1N3305B 6.460 6.8 7.140 1850 0.2 70 5.0 150 4.5 6600 0.040
1N3306B 7.125 7.5 7.875 1700 0.3 70 5.0 75 5.0 5900 0.045
1N3307B 7.790 8.2 8.610 1500 0.4 70 5.0 50 5.4 5200 0.048
1N3308B 8.645 9.1 9.555 1370 0.5 70 5.0 25 6.1 4800 0.051
1N3309B 9.500 10 10.50 1200 0.6 80 5.0 10 6.7 4300 0.055
1N3310B 10.45 11 11.55 1100 0.8 80 5.0 5.0 8.4 3900 0.060
1N3311B 11.40 12 12.60 1000 1.0 80 5.0 5.0 9.1 3600 0.065
1N3312B 12.35 13 13.65 960 1.1 80 5.0 5.0 9.9 3300 0.065
1N3313B 13.30 14 14.70 890 1.2 80 5.0 5.0 10.6 3000 0.070
1N3314B 14.25 15 15.75 830 1.4 80 5.0 5.0 11.4 2800 0.070
1N3315B 15.20 16 16.80 780 1.6 80 5.0 5.0 12.2 2650 0.070
1N3316B 16.15 17 17.85 740 1.8 80 5.0 5.0 13.0 2500 0.075
1N3317B 17.10 18 18.90 700 2.0 80 5.0 5.0 13.7 2300 0.075
1N3318B 18.05 19 19.95 660 2.2 80 5.0 5.0 14.4 2200 0.075
1N3319B 19.00 20 21.00 630 2.4 80 5.0 5.0 15.2 2100 0.075
1N3320B 20.90 22 23.10 570 2.5 80 5.0 5.0 16.7 1900 0.080
1N3321B 22.80 24 25.20 520 2.6 80 5.0 5.0 18.2 1750 0.080
1N3322B 23.75 25 26.25 500 2.7 90 5.0 5.0 19.0 1550 0.080
1N3323B 25.65 27 28.35 460 2.8 90 5.0 5.0 20.6 1500 0.085
1N3324B 28.50 30 31.50 420 3.0 90 5.0 5.0 22.8 1400 0.085
1N3325B 31.35 33 34.65 380 3.2 90 5.0 5.0 25.1 1300 0.085
1N3326B 34.20 36 37.80 350 3.5 90 5.0 5.0 27.4 1150 0.085
1N3327B 37.05 39 40.95 320 4.0 90 5.0 5.0 29.7 1050 0.090
1N3328B 40.85 43 45.15 290 4.5 90 5.0 5.0 32.7 975 0.090
1N3329B 42.75 45 47.25 280 4.5 100 5.0 5.0 34.2 930 0.090
1N3330B 44.65 47 49.35 270 5.0 100 5.0 5.0 35.8 880 0.090
MARKING: FULL PART NUMBER
DO-5 CASE
R3 (21-March 2013)
www.centralsemi.com
1N3305B THRU 1N3350B
SILICON ZENER DIODES
6.8 VOLT THRU 200 VOLT
50W, 5% TOLERANCE
DO-5 CASE - MECHANICAL OUTLINE
ELECTRICAL CHARACTERISTICS - Cont’d: (TC=30°C unless otherwise noted) VF=1.5V MAX @ IF=10A (for all types)
TYPE
ZENERVOLTAGE
VZ @ IZT
TEST
CURRENT
MAXIMUM ZENER
IMPEDANCE
MAXIMUM
REVERSE
CURRENT
MAXIMUM
ZENER
CURRENT
(TC=75°C MAX)
TYPICAL
TEMPERATURE
COEFFICIENT
MIN NOM MAX IZT ZZT @ IZT ZZK @ IZK IR @ VRIZM VZ
V V V mA Ω Ω mA μA V mA %/°C
1N3331B 47.50 50 52.50 250 5.0 100 5.0 5.0 38.0 830 0.090
1N3332B 48.45 51 53.55 245 5.2 100 5.0 5.0 38.8 810 0.090
1N3333B 49.40 52 54.60 240 5.5 100 5.0 5.0 39.5 790 0.090
1N3334B 53.20 56 58.80 220 6.0 110 5.0 5.0 42.6 740 0.090
1N3335B 58.90 62 65.10 200 7.0 120 5.0 5.0 47.1 660 0.090
1N3336B 64.60 68 71.40 180 8.0 140 5.0 5.0 51.7 600 0.090
1N3337B 71.25 75 78.75 170 9.0 150 5.0 5.0 56.0 540 0.090
1N3338B 77.90 82 86.10 150 11 160 5.0 5.0 62.2 490 0.090
1N3339B 86.45 91 95.55 140 15 180 5.0 5.0 69.2 420 0.090
1N3340B 95.00 100 105.00 120 20 200 5.0 5.0 76.0 400 0.090
1N3341B 99.75 105 110.25 120 25 210 5.0 5.0 79.8 380 0.095
1N3342B 104.50 110 115.50 110 30 220 5.0 5.0 83.6 365 0.095
1N3343B 114.00 120 126.00 100 40 240 5.0 5.0 91.2 335 0.095
1N3344B 123.50 130 136.50 95 50 275 5.0 5.0 98.8 310 0.095
1N3345B 133.00 140 147.00 90 60 325 5.0 5.0 106.4 290 0.095
1N3346B 142.50 150 157.50 85 75 400 5.0 5.0 114.0 270 0.095
1N3347B 152.00 160 168.00 80 80 450 5.0 5.0 121.6 250 0.095
1N3348B 166.25 175 183.75 70 85 500 5.0 5.0 133.0 230 0.095
1N3349B 171.00 180 189.00 68 90 525 5.0 5.0 136.8 220 0.095
1N3350B 190.00 200 210.00 65 100 600 5.0 5.0 152.0 200 0.100
LEAD CODE:
Terminal) Cathode
Lug) Anode
R1
LEAD CODE:
(Reverse Polarity)
Terminal) Anode
Lug) Cathode
LUG
TERMINAL
www.centralsemi.com
R3 (21-March 2013)
