Revision Date: 11/4/2009
New Product
Silicon Zener Diode Series
1N957B thru 1N992B
Maximum Ratings
Operating & Storage Temperature: -65°C to +175°C
Thermal Resistance: 250°C/W
Steady-State Power: 0.5 watts
Foward Voltage @200 MA: 1.1 V for 1N 975B - 1N985B
1.3 V for 1N985 - 1N992B
Features
• Available in JAN, JANTX and JANTXV per MIL-PRF-19500/117
• Standard voltage tolerences are plus/minus 5%
with B suffix, 10% with A suffix identification.
• Tight tolerences available in plus or minus 2% or
1% with C or D suffix respectively.
• 500 mW power handling
• Hermetically sealed axial-leaded glass DO-35 package.
Normal Zener Maximum Zener Maximum DC Maxmum Surge Maximum Reverse Maximum
JEDEC Zener Test Impedance Zener Current Leakage Current Temperature
TYPE Voltage Current Coefficient
Number VzIZT ZZT @ IZT ZZK @ IZK IZM IZSM IR @ VRαVZ
(Note1) Volts mA Ohms Ohms mA mA mA μA Volts %/°C
1N957B 6.8 18.5 4.5 700 1.0 55 300 150 5.2 +0.05
1N958B 7.5 16.5 5.5 700 .5 50 275 75 5.7 +0.058
1N959B 8.2 15.0 6.5 700 .5 45 250 50 6.2 +0.065
1N960B 9.1 14.0 7.5 700 .5 41 225 25 6.9 +0.068
1N961B 10 12.5 8.5 700 .25 38 200 10 7.6 +0.075
1N962B 11 11.5 9.5 700 .25 32 175 5 8.4 +0.076
1N963B 12 10.5 11.5 700 .25 31 160 5 9.1 +0.077
1N964B 13 9.5 13 700 .25 28 150 5 9.9 +0.079
1N965B 15 8.5 16 700 .25 25 130 5 11.4 +0.082
1N966B 16 7.8 17 700 .25 24 120 5 12.2 +0.083
1N967B 18 7.0 21 750 .25 20 110 5 13.7 +0.085
1N968B 20 6.2 25 750 .25 18 100 5 15.2 +0.086
1N969B 22 5.6 29 750 .25 16 90 5 16.7 +0.087
1N970B 24 5.2 33 750 .25 15 80 5 18.2 +0.088
1N971B 27 4.6 41 750 .25 13 70 5 20.6 +0.090
1N972B 30 4.2 49 1000 .25 12 65 5 22.8 +0.091
1N973B 33 3.8 58 1000 .25 11 60 5 25.1 +0.092
1N974B 36 3.4 70 1000 .25 10 55 5 27.4 +0.093
1N975B 39 3.2 80 1000 .25 9.5 46 5 29.7 +0.094
1N976B 43 3.0 93 1000 .25 8.8 44 5 32.7 +0.095
1N977B 47 2.7 105 1500 .25 7.9 40 5 35.8 +0.095
1N978B 51 2.5 125 1500 .25 7.4 37 5 38.8 +0.096
1N979B 56 2.2 150 2000 .25 6.8 35 5 42.6 +0.096
1N980B 62 2.0 185 2000 .25 6.0 30 5 47.1 +0.097
1N981B 68 1.8 230 2000 .25 5.5 28 5 51.7 +0.097
1N982B 75 1.7 270 2000 .25 5.0 26 5 56.0 +0.098
1N983B 82 1.5 330 3000 .25 4.6 23 5 62.2 +0.098
1N984B 91 1.4 400 3000 .25 4.1 21 5 69.2 +0.099
1N985B 100 1.3 500 3000 .25 3.7 18 5 76.0 +0.11
1N986B 110 1.1 750 4000 .25 3.3 16 5 83.6 +0.11
1N987B 120 1.0 900 4500 .25 3.1 15 5 91.2 +0.11
1N988B 130 0.95 1100 5000 .25 2.7 13 5 98.8 +0.11
1N989B 150 0.85 1500 6000 .25 2.4 12 5 114.0 +0.11
1N990B 160 0.80 1700 6500 .25 2.2 11 5 121.6 +0.11
1N991B 180 0.68 2200 7100 .25 2.0 10 5 136.8 +0.11
1N992B 200 0.65 2500 8000 .25 1.8 9 5 152.0 +0.11
Electrical Specifications @ +25 ºC (Unless Otherwise Specified)
NOTE 1: The JEDEC type numbers shown (B Suffix) have a +5% tolerence on nominal Zener Votlage. The suffix A is used to identify +10%
tolerance; suffix C is used to identify +2%: and suffix D is used identify +1%; no suffix indicates +20%.