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TAK CHEONG
Licensed by ON Semiconductor, A trademark of semiconductor Components Industries, LLC for Zener Technology and Products.
500 mW DO-35 Hermetically Sealed Glass Zener Voltage Regulators
AXIAL LEAD DO35
Maximum Ratings (Note 1)
Rating Maximum Steady State Power Dissipation @TL75, Lead Length = 3/8" Derate Above 75 Operating and Storage Temperature Range TJ, Tstg 4.0 -65 to +200 mW/ C L 9x xB Symbol PD Value 500 Units mW
Note 1: Some part number series have lower JEDEC registered ratings.
Specification Features:
Zener Voltage Range = 6.8V to 100V ESD Rating of Class 3 (>6 KV) per Human Body Model DO-35 Package (DO-204AH) Double Slug Type Construction Metallurgical Bonded Construction RoHS Compliant Solder Hot Dip Tin (Sn) Lead Finish
L 9xxB
= Logo = 1N9xxB Device Code
Specification Features:
Case Finish : Double slug type, hermetically sealed glass : All external surfaces are corrosion resistant and leads are readily solderable
Cathode
Anode
Polarity : Cathode indicated by polarity band Mounting: Any
November 2006 / C
Page 1
1N957B through 1N992B Series
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(R)
TAK CHEONG
ELECTRICAL CHARACTERIZATION (TA = 25C unless otherwise noted)
Zener Voltage (Note 3.) Device (Note 2.) 1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B 1N964B 1N965B 1N966B 1N967B 1N968B 1N969B 1N970B 1N971B 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B 1N978B 1N979B 1N980B 1N981B 1N982B 1N983B 1N984B 1N985B 1N986B 1N987B 1N988B 1N989B 1N990B 1N991B 1N992B Device Marking Min 1N957B 1N958B 1N959B 1N960B 1N961B 1N962B 1N963B 1N964B 1N965B 1N966B 1N967B 1N968B 1N969B 1N970B 1N971B 1N972B 1N973B 1N974B 1N975B 1N976B 1N977B 1N978B 1N979B 1N980B 1N981B 1N982B 1N983B 1N984B 1N985B 1N986B 1N987B 1N988B 1N989B 1N990B 1N991B 1N992B 6.460 7.125 7.790 8.645 9.500 10.45 11.40 12.35 14.25 15.20 17.10 19.00 20.90 22.80 25.65 28.50 31.35 34.20 37.05 40.85 44.65 48.45 53.20 58.90 64.60 71.25 77.90 86.45 95.00 104.5 114.0 123.5 142.5 152.0 171.0 190.0 VZ (Volts) Nom 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 110 120 130 150 160 180 200 Max 7.140 8.875 8.610 9.555 10.500 11.55 12.60 13.65 15.75 16.8 18.90 21.00 23.10 25.20 28.35 31.50 34.65 37.80 40.95 45.15 49.35 53.55 58.80 65.10 71.40 78.75 85.10 95.55 105.0 115.5 126.0 136.5 157.5 168.5 189.5 210.0 @IZT (mA) 18.5 16.5 15 14 12.5 11.5 10.5 9.5 8.5 7.8 7 6.2 5.6 5.2 4.6 4.2 3.8 3.4 3.2 3.0 2.7 2.5 2.2 2.0 1.8 1.7 1.5 1.4 1.3 1.1 1 0.95 0.85 0.80 0.68 0.65
Licensed by ON Semiconductor, A trademark of semiconductor Components Industries, LLC for Zener Technology and Products.
Zener Impedance (Note 4.) ZZT @IZT () 4.5 5.5 6.5 7.5 8.5 9.5 11.5 13 16 17 21 25 29 33 41 49 58 70 80 93 105 125 150 185 230 270 330 400 500 750 900 1100 1500 1700 2200 2500 ZZK @IZK () 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 4000 4500 5000 6000 6500 7100 8000 (mA) 1 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Leakage Current IR @VR = 1V (uA) 150 75 50 25 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 (Volts) 5.2 5.7 6.2 6.9 7.6 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 56.0 62.2 69.2 76.0 83.6 91.2 98.8 114.0 121.6 136.8 152.0
IZM (Note 5.) (mA) 47 42 38 35 32 28 26 24 21 19 17 15 14 13 11 10 9.2 8.5 7.8 7 6.4 5.9 5.4 4.9 4.5 4.1 3.7 3.3 3.0 2.7 2.5 2.3 2.0 1.9 1.7 1.5
VF Forward Voltage = 1.5V max @ IF = 200mA for all types 2. TOLERANCE AND VOLTAGE DESIGNATION The type numbers listed have a standard tolerance on the nominal zener voltage of 5%. 3. ZENER VOLTAGE (VZ) MEASUREMENT The zener voltage (VZ) is tested under pulse condition. The measured VZ is guaranteed to be within specification with device junction in thermal equilibrium. 4. ZENER IMPEDANCE (ZZ) DERIVATION ZZT and ZZK are measured by dividing the AC voltage drop across the device by the AC current applied. The specified limits are for IZ(AC) = 0.1 IZ(DC) with AC frequency = 60Hz. 5. MAXIMUM ZENER CURRENT RATINGS (IZM) Values shown are based on the JEDEC rating of 400mW where the actual zener voltage (VZ) is known at the operation point, the zener current may be increased and is limited by the derating curve. November 2006 / C Page 2
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TAK CHEONG
Package Outline
Case Outline
Licensed by ON Semiconductor, A trademark of semiconductor Components Industries, LLC for Zener Technology and Products.
DO-35 DIM
Min
Millimeters
Max Min
Inches
Max
A B C D
0.46 3.05 25.40 1.52
0.56 5.08 38.10 2.29
0.018 0.120 1.000 0.060
0.022 0.200 1.500 0.090
Note: all dimensions are within JEDEC standard.
This datasheet presents technical data of Tak Cheong's Zener Diodes. Complete specifications for the individual devices are provided in the form of datasheets. A comprehensive Selector Guide is included to simplify the task of choosing the best set of components required for a specific application. For additional information, please visit our website http://www.takcheong.com. Although information in this datasheet has been carefully checked, no responsibility for the inaccuracies can be assumed by Tak Cheong. Please consult your nearest Tak Cheong's sales office for further assistance. Tak Cheong reserves the right to make changes without further notice to any products herein to further improve reliability, function or design, cost and productivity.
TAK CHEONG
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and
are registered trademarks of Tak Cheong Electronics (Holdings) Co., Ltd.
November 2006 / C
Page 3

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