TAK CHEONG SEM IC O N DU C TO R 1 Watt LL-41 Hermetically Sealed Glass Zener Voltage Regulators Absolute Maximum Ratings SURFACE MOUNT LL-41 TA = 25C unless otherwise noted Parameter Storage Temperature Range Maximum Junction Operating Temperature Value Units -65 to +200 C +175 C Total Device Dissipation 1.0 Watt Thermal Resistance Junction to Ambient 170 C / W DEVICE MARKING DIAGRAM Cathode Band Color: Blue These ratings are limiting values above which the serviceability of the diode may be impaired. Specification Features: Zener Voltage Range 3.3 to 56 Volts LL-41 MELF Package (JEDEC DO-213AB) Surface Mount Devices (SMD) Cathode Anode Hermetically Sealed Glass Compression Bonded Construction All External Surfaces Are Corrosion Resistant And Terminals Are Readily Solderable ELECTRICAL SYMBOL RoHS Compliant Matte Tin (Sn) Lead Finish Color band Indicates Negative Polarity Electrical Characteristics Device Type TCZM4728A TCZM4729A TCZM4730A TCZM4731A TCZM4732A TCZM4733A TCZM4734A TCZM4735A TCZM4736A TCZM4737A TCZM4738A TCZM4739A TCZM4740A TCZM4741A TCZM4742A TCZM4743A TCZM4744A TCZM4745A TCZM4746A VZ @ IZT (Volts) Nominal 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 TA = 25C unless otherwise noted ZZT @ IZT IZT IZK () (mA) (mA) Max 76 10 1 69 10 1 64 9 1 58 9 1 53 8 1 49 7 1 45 5 1 41 2 1 37 3.5 1 34 4 0.5 31 4.5 0.5 28 5 0.5 25 7 0.25 23 8 0.25 21 9 0.25 19 10 0.25 17 14 0.25 15.5 16 0.25 14 20 0.25 ZZK @ IZK () Max 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 700 IR @ VR (A) Max 100 100 50 10 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 VR (Volts) 1 1 1 1 1 1 2 3 4 5 6 7 7.6 8.4 9.1 9.9 11.4 12.2 13.7 November 2006 / B Page 1 TCZM4728A through TCZM4758A (R) (R) TAK CHEONG SEM IC O N DU C TO R Electrical Characteristics Device Type TCZM4747A TCZM4748A TCZM4749A TCZM4750A TCZM4751A TCZM4752A TCZM4753A TCZM4754A TCZM4755A TCZM4756A TCZM4757A TCZM4758A VZ @ IZT (Volts) Nominal 20 22 24 27 30 33 36 39 43 47 51 56 TA = 25C unless otherwise noted ZZT @ IZT IZT IZK () (mA) (mA) Max 12.5 22 0.25 11.5 23 0.25 10.5 25 0.25 9.5 35 0.25 8.5 40 0.25 7.5 45 0.25 7 50 0.25 6.5 60 0.25 6 70 0.25 5.5 80 0.25 5 95 0.25 4.5 110 0.25 ZZK @ IZK () Max 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 IR @ VR (A) Max 5 5 5 5 5 5 5 5 5 5 5 5 VR (Volts) 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 VF Forward Voltage = 1.2 V Maximum @ IF = 200 mA for all types Notes: 1. The device numbers listed have a standard tolerance on the nominal zener voltage of 5%. 2. For detailed information on price, availability and delivery of nominal zener voltages between the voltages shown and tighter voltage tolerances, contact your nearest Tak Cheong's representative. 3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK. November 2006 / B Page 2 (R) TAK CHEONG SEM IC O N DU C TO R Package Outline Package Case Outline B LL- 41 MELF DIM LL- 41 MELF Millimeters Inches Min Max Min Max A 4.80 5.20 0.189 0.205 B 2.39 2.66 0.094 0.105 C 0.41 0.55 0.016 0.022 A C Notes: 1. 2. All dimensions are within DO-213AB JEDEC standard. LL-41 MELF polarity denoted by cathode band. 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 (R) and are registered trademarks of Tak Cheong Electronics (Holdings) Co., Ltd. November 2006 / B Page 3