MMSZ4678T1 Series Zener Voltage Regulators 500 mW SOD−123 Surface Mount Three complete series of Zener diodes are offered in the convenient, surface mount plastic SOD−123 package. These devices provide a convenient alternative to the leadless 34−package style. http://onsemi.com Features • Pb−Free Packages are Available • • • • • 1 Cathode For Additional Pb−Free Options, Please Consult Factory 500 mW Rating on FR−4 or FR−5 Board Wide Zener Reverse Voltage Range − 1.8 V to 43 V Package Designed for Optimal Automated Board Assembly Small Package Size for High Density Applications ESD Rating of Class 3 (>16 kV) per Human Body Model 2 Anode SOD−123 CASE 425 STYLE 1 2 1 Mechanical Characteristics 260°C for 10 Seconds POLARITY: Cathode indicated by polarity band FLAMMABILITY RATING: UL 94 V−0 ÂÂ ÂÂ ÂÂ MARKING DIAGRAM CASE: Void-free, transfer-molded, thermosetting plastic case FINISH: Corrosion resistant finish, easily solderable MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES: xx M xx M = Specific Device Code = Date Code MAXIMUM RATINGS Rating Total Power Dissipation on FR−5 Board, (Note 1) @ TL = 75°C Derated above 75°C Symbol Max Unit 500 6.7 mW mW/°C PD ORDERING INFORMATION Device** Package Shipping† MMSZ4xxxT1 SOD−123 3000/Tape & Reel Thermal Resistance, (Note 2) Junction−to−Ambient RJA 340 °C/W MMSZ4xxxT1G SOD−123 (Pb−Free) 3000/Tape & Reel Thermal Resistance, (Note 2) Junction−to−Lead RJL 150 °C/W MMSZ4xxxT3 SOD−123 10,000/Tape & Reel −55 to +150 °C MMSZ4xxxT3G* SOD−123 (Pb−Free) 10,000/Tape & Reel TJ, Tstg Junction and Storage Temperature Range 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. FR−5 = 3.5 X 1.5 inches, using the minimum recommended footprint. 2. Thermal Resistance measurement obtained via infrared Scan Method. *MMSZ4703T1 and MMSZ4711T1 Not Available in 10,000/Tape & Reel **The “T1” suffix refers to an 8 mm, 7 inch reel. The “T3” suffix refers to an 8 mm, 13 inch 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. DEVICE MARKING INFORMATION See specific marking information in the device marking column of the Electrical Characteristics table on page 3 of this data sheet. Devices listed in bold, italic are ON Semiconductor Preferred devices. Preferred devices are recommended choices for future use and best overall value. Semiconductor Components Industries, LLC, 2004 September, 2004 − Rev. 4 1 Publication Order Number: MMSZ4678T1/D MMSZ4678T1 Series ELECTRICAL CHARACTERISTICS (TA = 25°C unless I otherwise noted, VF = 0.95 V Max. @ IF = 10 mA) Symbol IF Parameter VZ Reverse Zener Voltage @ IZT IZT Reverse Current IR Reverse Leakage Current @ VR VR Reverse Voltage IF Forward Current VF Forward Voltage @ IF VZ VR IR VF IZT Zener Voltage Regulator http://onsemi.com 2 V MMSZ4678T1 Series ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA) Zener Voltage (Note 3) VZ (Volts) Leakage Current @ IZT IR @ VR Device Marking Min Nom Max A A Volts MMSZ4678T1 CC 1.71 1.8 1.89 50 7.5 1 MMSZ4678T1, G CC 1.71 1.8 1.89 50 7.5 1 MMSZ4679T1 CD 1.90 2.0 2.10 50 5 1 MMSZ4680T1, G CE 2.09 2.2 2.31 50 4 1 MMSZ4681T1, G CF 2.28 2.4 2.52 50 2 1 MMSZ4682T1, G CH 2.565 2.7 2.835 50 1 1 MMSZ4683T1 CJ 2.85 3.0 3.15 50 0.8 1 Device MMSZ4684T1, G CK 3.13 3.3 3.47 50 7.5 1.5 MMSZ4685T1, G CM 3.42 3.6 3.78 50 7.5 2 MMSZ4686T1 CN 3.70 3.9 4.10 50 5 2 MMSZ4687T1, G CP 4.09 4.3 4.52 50 4 2 MMSZ4688T1 CT 4.47 4.7 4.94 50 10 3 MMSZ4689T1 CU 4.85 5.1 5.36 50 10 3 MMSZ4690T1, G CV 5.32 5.6 5.88 50 10 4 MMSZ4691T1 CA 5.89 6.2 6.51 50 10 5 MMSZ4692T1, G CX 6.46 6.8 7.14 50 10 5.1 MMSZ4693T1 CY 7.13 7.5 7.88 50 10 5.7 MMSZ4694T1 CZ 7.79 8.2 8.61 50 1 6.2 MMSZ4695T1, G DC 8.27 8.7 9.14 50 1 6.6 MMSZ4696T1, G DD 8.65 9.1 9.56 50 1 6.9 MMSZ4697T1 DE 9.50 10 10.50 50 1 7.6 MMSZ4698T1 DF 10.45 11 11.55 50 0.05 8.4 MMSZ4699T1, G DH 11.40 12 12.60 50 0.05 9.1 MMSZ4700T1 DJ 12.35 13 13.65 50 0.05 9.8 MMSZ4701T1 DK 13.30 14 14.70 50 0.05 10.6 MMSZ4702T1 DM 14.25 15 15.75 50 0.05 11.4 MMSZ4703T1* DN 15.20 16 16.80 50 0.05 12.1 MMSZ4704T1 DP 16.15 17 17.85 50 0.05 12.9 MMSZ4705T1 DT 17.10 18 18.90 50 0.05 13.6 MMSZ4706T1 DU 18.05 19 19.95 50 0.05 14.4 MMSZ4707T1 DV 19.00 20 21.00 50 0.01 15.2 MMSZ4708T1 DA 20.90 22 23.10 50 0.01 16.7 MMSZ4709T1, G DX 22.80 24 25.20 50 0.01 18.2 MMSZ4710T1 DY 23.75 25 26.25 50 0.01 19.0 MMSZ4711T1* EA 25.65 27 28.35 50 0.01 20.4 MMSZ4712T1 EC 26.60 28 29.40 50 0.01 21.2 MMSZ4713T1 ED 28.50 30 31.50 50 0.01 22.8 MMSZ4714T1 EE 31.35 33 34.65 50 0.01 25.0 MMSZ4715T1 EF 34.20 36 37.80 50 0.01 27.3 MMSZ4716T1 EH 37.05 39 40.95 50 0.01 29.6 MMSZ4717T1 EJ 40.85 43 45.15 50 0.01 32.6 3. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C ±1°C. *Not Available in the 10,000/Tape & Reel. http://onsemi.com 3 MMSZ4678T1 Series 8 θ VZ, TEMPERATURE COEFFICIENT (mV/°C) θ VZ, TEMPERATURE COEFFICIENT (mV/°C) TYPICAL CHARACTERISTICS 7 6 TYPICAL TC VALUES 5 4 VZ @ IZT 3 2 1 0 −1 −2 −3 2 3 4 5 6 7 8 9 10 VZ, NOMINAL ZENER VOLTAGE (V) 11 100 TYPICAL TC VALUES VZ @ IZT 10 1 12 10 100 VZ, NOMINAL ZENER VOLTAGE (V) Figure 1. Temperature Coefficients (Temperature Range − 55°C to +150°C) Figure 2. Temperature Coefficients (Temperature Range − 55°C to +150°C) 1000 Ppk , PEAK SURGE POWER (WATTS) PD, POWER DISSIPATION (WATTS) 1.2 1.0 PD versus TL 0.8 0.6 PD versus TA 0.4 0.2 0 0 25 50 75 100 T, TEMPERATURE (5C) 125 RECTANGULAR WAVEFORM, TA = 25°C 100 10 1 0.1 150 Figure 3. Steady State Power Derating 10 PW, PULSE WIDTH (ms) 100 1000 Figure 4. Maximum Nonrepetitive Surge Power 1000 1000 IZ = 1 mA TJ = 25°C IZ(AC) = 0.1 IZ(DC) f = 1 kHz IF, FORWARD CURRENT (mA) Z ZT, DYNAMIC IMPEDANCE (Ω ) 1 100 5 mA 20 mA 10 75 V (MMSZ5267BT1) 91 V (MMSZ5270BT1) 100 10 1505C 1 1 10 VZ, NOMINAL ZENER VOLTAGE 100 1 0.4 Figure 5. Effect of Zener Voltage on Zener Impedance 0.5 755C 255C 0.6 05C 0.7 0.8 0.9 1.0 VF, FORWARD VOLTAGE (V) Figure 6. Typical Forward Voltage http://onsemi.com 4 1.1 1.2 MMSZ4678T1 Series TYPICAL CHARACTERISTICS 1000 1000 C, CAPACITANCE (pF) 0 V BIAS 1 V BIAS I R , LEAKAGE CURRENT ( µA) TA = 25°C 100 BIAS AT 50% OF VZ NOM 10 1 1 10 VZ, NOMINAL ZENER VOLTAGE (V) 100 100 10 1 +1505C 0.1 0.01 0.001 +255C 0.0001 −555C 0.00001 0 10 Figure 7. Typical Capacitance 100 TA = 25°C 10 1 0.1 0.01 0 2 4 6 8 VZ, ZENER VOLTAGE (V) 30 40 50 60 70 VZ, NOMINAL ZENER VOLTAGE (V) 80 Figure 8. Typical Leakage Current I Z , ZENER CURRENT (mA) I Z , ZENER CURRENT (mA) 100 20 10 10 1 0.1 0.01 12 TA = 25°C 10 30 50 70 VZ, ZENER VOLTAGE (V) 90 Figure 10. Zener Voltage versus Zener Current (12 V to 91 V) Figure 9. Zener Voltage versus Zener Current (VZ Up to 12 V) http://onsemi.com 5 90 MMSZ4678T1 Series PACKAGE DIMENSIONS SOD−123 CASE 425−04 ISSUE C A ÂÂÂ ÂÂÂ C NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. H 1 K DIM A B C D E H J K B E 2 MILLIMETERS MIN MAX 1.40 1.80 2.55 2.85 0.95 1.35 0.50 0.70 0.25 −−− 0.00 0.10 −−− 0.15 3.55 3.85 STYLE 1: PIN 1. CATHODE 2. ANODE J D INCHES MIN MAX 0.055 0.071 0.100 0.112 0.037 0.053 0.020 0.028 0.01 −−− 0.000 0.004 −−− 0.006 0.140 0.152 SOLDERING FOOTPRINT* ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ 0.91 0.036 2.36 0.093 4.19 0.165 ÉÉÉ ÉÉÉ ÉÉÉ ÉÉÉ SCALE 10:1 1.22 0.048 mm inches *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. 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