P| Discrete POWER & Signal FAIRGHILD Technologies ee SEMICONDUCTOR m 1N957B - 1N973B Series Half Watt Zeners Absol ute Maxi mum Rati ngs* TA = 25C unless otherwise noted Tolerance: B = 5% f/ Parameter Value Units Storage Temperature Range -65 to +200 C Maximum Junction Operating Temperature +175 c Lead Temperature (1/16 from case for 10 seconds) + 230 c Total Device Dissipation 500 mW Derate above 25C 3.33 mWwW/eC *These ratings are limiting values above which the serviceability of the diode may be impaired. DO-35 NOTES: 1) These ratings are based on a maximum junction temperature of 200 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. NA Electrical Characteristics TA = 25C unless otherwise noted Device Vz Zz @ Izt 22K @ Iz Ir @ Vr Te Iz" (Vv) (Q) (mA) (Q) (mA) (uA) (Vv) (%/C) (mA) 1N957B 6.8 45 18.5 700 1.0 150 5.2 0.05 47 1N958B 7.5 5.5 16.5 700 0.5 75 5.7 0.058 42 1N959B 8.2 6.5 15 700 0.5 50 6.2 0.062 38 1N960B 9.1 7.5 14 700 0.5 25 6.9 0.068 35 1N961B 10 8.5 12.5 700 0.25 10 7.6 0.072 32 1N962B 11 9.5 11.5 700 0.25 5 8.4 0.073 28 1N963B 12 11.5 10.5 700 0.25 5 9.1 0.076 26 1N964B 13 13 9.5 700 0.25 5 9.9 0.079 24 1N965B 15 16 8.5 700 0.25 5 11.4 0.082 21 1N966B 16 17 7.8 700 0.25 5 12.2 0.083 19 1N967B 18 21 7.0 750 0.25 5 13.7 0.085 17 1N968B 20 25 6.2 750 0.25 5 15.2 0.086 15 1N969B 22 29 5.6 750 0.25 5 16.7 0.087 14 1N970B 24 33 5.2 750 0.25 5 18.2 0.088 13 1N971B 27 4 46 750 0.25 5 20.6 0.090 11 1N972B 30 49 4.2 1,000 0.25 5 22.8 0.091 10 1N973B 33 58 3.8 1,000 0.25 5 25.1 0.092 9.2 "IZM (Maximum Zener Current Rating) Values shown are based on the JEDEC rating of 400 milliwatts. Where the actual zener voltage (VZ) is known at the operating point, the maximum zener current may be increased and is limited by the derating curve. 41997 Fairchild Semiconductor Corporation S GeZ6Nl - ZS6NL SoldTRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx ISOPLANAR CoolFET MICROWIRE CROSSVOLT POP E?CMOS PowerTrench FACT qs FACT Quiet Series Quiet Series FAST SuperSOT-3 FASTr SuperSOT-6 GTo SuperSOT-8 HiSeC TinyLogic DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILDS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant into support device or system whose failure to perform can the body, or (b) support or sustain life, or (c) whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or This datasheet contains the design specifications for In Design product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.