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SENSITRON SEMICONDUCTOR
TECHNICAL DATA DATA SHEET 4239, Rev-
1N4478 to 1N4494 1N4478U to 1N4494U
Zener 1.5W DIODE
SENSITRONs Power Semiconductor Products have been used in space, military and high-rel applications for more than 30 years. Our 1.5W silicon, low leakage, voltage regulator diodes are available in both leaded axial and surface mount melf packaging. We also supply 1.5W Zener die products.
Applications / Markets:
Voltage regulation and voltage limiting Voltage regulation over a broad operating range Low power protection Analog Circuits High-Rel Industrial Military Aerospace Space/satellites
Features / Benefits:
Ultra-low reverse leakage current Sharp Zener knee Zener voltage available from 36V to 160V Hermetic, non-cavity glass package Metallurgically bonded Extensive line of QPL Products Screening to TX/TXV/S level Tape & reel available
Electrical characteristics - Temperature 25oC unless otherwise noted Part #
Vz Nom Vz Min Vz Max V 37.8 40.9 45.1 49.3 53.5 58.8 65.1 71.4 78.8 86.1 95.5 105.0 115.5 126.0 136.5 157.5 168 Iz test current mA 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 2.3 2.0 1.9 1.7 1.6 Zz imped ance 27 30 40 50 60 70 80 100 130 160 200 250 300 400 500 700 1000 Zk Knee impedance 850 900 950 1000 1100 1300 1500 1700 2000 2500 3000 3100 4000 4500 5000 6000 6500 Iz Max dc current mA 40 37 33 30 28 26 23 21 19 17 16 14 13 12 11 9.5 8.9 Voltage regulation V 1.7 1.8 1.9 2.1 2.3 2.5 2.7 3.0 3.3 3.6 4.0 4.4 5.0 5.5 6.0 7.0 8.0 Izsm Reverse Voltage V 28.8 31.2 34.4 37.6 40.8 44.8 49.6 54.4 60.0 65.6 72.8 80.0 88.0 96.0 104 120 128 IR Reverse Current Dc Ir1 A .05 .05 .05 .05 .05 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 .25 VZ Temp coeffi cient %/oC 0.093 0.094 0.095 0.095 0.096 0.096 0.097 0.097 0.098 0.098 0.099 0.100 0.100 0.100 0.100 0.100 0.100 IZK Test current mA 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 IR2 Reverse current* A 2 2 2 2 2 10 10 10 10 10 10 10 10 10 10 10 10
V V 1N4478 36 34.2 1N4479 39 37.1 1N4480 43 40.9 1N4481 47 44.7 1N4482 51 48.5 1N4483 56 53.2 1N4484 62 58.9 1N4485 68 64.6 1N4486 75 71.3 1N4487 82 77.9 1N4488 91 86.5 1N4489 100 95.0 1N4490 110 104.5 1N4491 120 114.0 1N4492 130 123.5 1N4493 150 142.5 1N4494 160 152 * Dc TA=+150oC IR2
A .40 .37 .33 .30 .28 .26 .23 .21 .19 .17 .16 .14 .13 .12 .11 .095 .089
* 221 West Industry Court Deer Park, NY 11729-4681 (631) 586-7600 FAX (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com *
1N4478 to 1N4494 1N4478U to 1N4494U
SENSITRON TECHNICAL DATA DATA SHEET 4239, Rev-
Axial
Melf
1N4478 thru 1N4494 PACKAGE DIMENSIONS - INCHES ( MILLIMETERS) STYLE G L B D .028/.032 .060/.085 .106/.160 .80/1.30 Similar to 0.71/0.81 1.52/2.16 2.69/4.06 20.32/33.02 DO-41
1N4478U thru 1N4494U PACKAGE DIMENSIONS - INCHES ( MILLIMETERS) STYLE BL BD S ECT .168/.200 .091/.103 0.003 Min .019/.028 4.28/5.08 2.31/2.62 0.008min 0.48/0.71
DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior not ice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement . 3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets. 4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from use at a value exceeding the absolute maximum rating. 5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor. 6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed writ ten permission of Sensitron Semiconductor. 7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations.
* 221 West Industry Court Deer Park, NY 11729-4681 (631) 586-7600 FAX (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com *
SENSITRON SEMICONDUCTOR
TECHNICAL DATA
DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement. 3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets. 4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from use at a value exceeding the absolute maximum rating. 5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor. 6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of Sensitron Semiconductor. 7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations.
* 221 West Industry Court Deer Park, NY 11729-4681 (631) 586-7600 FAX (631) 242-9798 * * World Wide Web - http://www.sensitron.com * E-Mail Address - sales@sensitron.com *

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