ZM4728A - ZM4758A Pb RoHS COMPLIANCE 1.0 Watt Hermetically Sealed Glass Zener Voltage Regulators MELF Features Zener voltage range 3.3V to 56 V MELF Package (JEDEC DO-213AB) Surface mount devices (SMD). Hemetically sealed glass Compression bonded construction All extemal surfaces are corrosion resistant and terminals are readily solderable RoHS compliant Matte Tin (Sn) lead finish Color band indicates negative polarity Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25 oC ambient temperature unless otherwise specified. Maximum Ratings Type Number Symbol Value Units 1.0 W Pd O 170 C/W RӨJA O -65 to + 200 C TSTG O 175 C TJ These ratings are limiting values above which the serviceability of the diode may be impaired. Power Dissipation Thermal Resistance Junction to Ambient Storage Temperature Range Operating Temperature Range Version: A07 ELECTRICAL CHARACTERISTICS (TA=25OC VZ @ IZT (Volts) Nominal ZM4728A ZM4729A unless otherwise noted) IR @ VR ZZK @ IZK uA Ohms Max IZT mA ZZT @ IZT Ohms Max IZK mA 3.3 76 10 1.0 400 100 1.0 3.6 69 10 1.0 400 100 1.0 ZM4730A 3.9 64 9 1.0 400 50 1.0 ZM4731A 4.3 58 9 1.0 400 10 1.0 ZM4732A 4.7 53 8 1.0 500 10 1.0 ZM4733A 5.1 49 7 1.0 550 10 1.0 ZM4734A 5.6 45 5 1.0 600 10 2.0 ZM4735A 6.2 41 2 1.0 700 10 3.0 ZM4736A 6.8 37 3.5 1.0 700 10 4.0 ZM4737A 7.5 34 4.0 0.5 700 10 5.0 ZM4738A 8.2 31 4.5 0.5 700 10 6.0 ZM4739A 9.1 28 5.0 0.5 700 10 7.0 ZM4740A 10 25 7.0 0.25 700 10 7.6 ZM4741A 11 23 8.0 0.25 700 5.0 8.4 ZM4742A 12 21 9.0 0.25 700 5.0 9.1 ZM4743A 13 19 10 0.25 700 5.0 9.9 ZM4744A 15 17 14 0.25 700 5.0 11.4 ZM4745A 16 15.5 16 0.25 700 5.0 12.2 ZM4746A 18 14.0 20 0.25 700 5.0 13.7 ZM4747A 20 12.5 22 0.25 750 5.0 15.2 ZM4748A 22 11.5 23 0.25 750 5.0 16.7 ZM4749A 24 10.5 25 0.25 750 5.0 18.2 ZM4750A 27 9.5 35 0.25 750 5.0 20.6 ZM4751A 30 8.5 40 0.25 1000 5.0 22.8 ZM4752A 33 7.5 45 0.25 1000 5.0 25.1 ZM4753A 36 7.0 50 0.25 1000 5.0 27.4 ZM4754A 39 6.5 60 0.25 1000 5.0 29.7 ZM4755A 43 6.0 70 0.25 1500 5.0 32.7 ZM4756A 47 5.5 80 0.25 1500 5.0 35.8 ZM4757A 51 5.0 95 0.25 1500 5.0 38.8 ZM4758A 56 4.5 110 0.25 2000 5.0 42.6 Type Number VR V 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. 3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an ms value equal to 10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK. Version: A07