Details, datasheet, quote on part number: 1SMA5944B
CategoryDiscrete => Diodes & Rectifiers => Zener Diodes
DescriptionZener Diode
CompanyON Semiconductor
DatasheetDownload 1SMA5944B datasheet
Cross ref.Similar parts: 1SMA5944BT3
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Features, Applications
1SMA5913BT3 Series 1.5 Watt Plastic Surface Mount Zener Voltage Regulators
This complete new line of 1.5 Watt Zener Diodes offers the following advantages.

Standard Zener Breakdown Voltage Range 68 V ESD Rating of Class 3 (>16 kV) per Human Body Model Flat Handling Surface for Accurate Placement Package Design for Top Slide or Bottom Circuit Board Mounting Low Profile Package Ideal Replacement for MELF Packages Pb-Free Packages are Available

Mechanical Characteristics: CASE: Void-free, transfer-molded plastic FINISH: All external surfaces are corrosion resistant with readily

260C for 10 seconds POLARITY: Cathode indicated by molded polarity notch or cathode band FLAMMABILITY RATING: 0.125 in

Rating DC Power Dissipation = 75C, Measured Zero Lead Length (Note 1.) Derate above 75C Thermal Resistance - Junction-to-Lead DC Power Dissipation = 25C (Note 2.) Derate above 25C Thermal Resistance - Junction-to-Ambient Operating and Storage Temperature Range Symbol PD Value 1.5 20 Unit Watts mW/C C/W Watts mW/C C/W C

= Specific Device Code = (See Table Next Page) = Assembly Location = Year = Work Week
Device* Package SMA (Pb-Free) Shipping 5000/Tape & Reel 5000/Tape & Reel

For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.

Individual devices are listed on page 2 of this data sheet.

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 1. square copper pad, FR-4 board 2. FR-4 Board, using ON Semiconductor minimum recommended footprint

otherwise noted, 1.5 V Max. 200 mA for all types) Symbol VZ IZT ZZT IZK ZZK IF VF IZM Parameter Reverse Zener Voltage @ IZT Reverse Current Maximum Zener Impedance @ IZT Reverse Current Maximum Zener Impedance @ IZK Reverse Leakage Current @ VR Reverse Voltage Forward Current Forward Voltage @ IF Maximum DC Zener Current IR VF IZT IF I

ELECTRICAL CHARACTERISTICS (TA = 25C unless otherwise noted, 1.5 V Max. 200 mA for all types)

1SMA5945BT3 845B Tolerance and Voltage Regulation Designation - The type number listed indicates a tolerance 2. VZ limits are to be guaranteed at thermal equilibrium. * The "G" suffix indicates Pb-Free package available.


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