MMSZ5221ET1 Series Preferred Device 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 500 mW Rating on FR−4 or FR−5 Board Wide Zener Reverse Voltage Range − 2.4 V to 110 V Package Designed for Optimal Automated Board Assembly Small Package Size for High Density Applications General Purpose, Medium Current ESD Rating of Class 3 (>16 kV) per Human Body Model Peak Power − 225 W (8 x 20 s) 1 Cathode 2 Anode SOD−123 CASE 425 STYLE 1 2 1 MARKING DIAGRAM ÂÂ ÂÂ ÂÂ Mechanical Characteristics: CASE: Void-free, transfer-molded, thermosetting plastic case FINISH: Corrosion resistant finish, easily solderable MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES: 260°C for 10 Seconds POLARITY: Cathode indicated by polarity band FLAMMABILITY RATING: UL 94 V−0 xxx = Specific Device Code M = Date Code MAXIMUM RATINGS ORDERING INFORMATION Rating Symbol Max Unit Peak Power Dissipation @ 20 s (Note 1) @ TL ≤ 25°C Ppk 225 W Total Power Dissipation on FR−5 Board, (Note 2) @ TL = 75°C Derated above 75°C PD 500 6.7 mW mW/°C 340 °C/W Thermal Resistance, (Note 3) Junction−to−Ambient RJA Thermal Resistance, (Note 3) Junction−to−Lead RJL 150 °C/W TJ, Tstg −55 to +150 °C Junction and Storage Temperature Range xxx M 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. Nonrepetitive current pulse per Figure 11. 2. FR−5 = 3.5 x 1.5 inches, using the minimum recommended footprint. 3. Thermal Resistance measurement obtained via infrared Scan Method. Package Shipping† MMSZ52xxET1 SOD−123 3000/Tape & Reel MMSZ52xxET1G SOD−123 (Pb−Free) 3000/Tape & Reel MMSZ52xxET3 SOD−123 10,000/Tape & Reel MMSZ52xxET3G SOD−123 (Pb−Free) 10,000/Tape & Reel Device** **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 2 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, 2005 February, 2005 − Rev. 4 1 Publication Order Number: MMSZ5221ET1/D MMSZ5221ET1 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 ZZT Maximum Zener Impedance @ IZT IZK Reverse Current ZZK Maximum Zener Impedance @ IZK VZ VR V IR VF IZT IR Reverse Leakage Current @ VR VR Reverse Voltage IF Forward Current VF Forward Voltage @ IF Zener Voltage Regulator ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted, VF = 0.9 V Max. @ IF = 10 mA) Zener Voltage (Notes 4 and 5) VZ (V) Zener Impedance (Note 6) Leakage Current @ IZT ZZT @ IZT Max mA mA A V 2.4 2.52 20 30 1200 0.25 100 1 2.7 2.84 20 30 1300 0.25 75 1 3.14 3.3 3.47 20 28 1600 0.25 25 1 CA8 3.71 3.9 4.10 20 23 1900 0.25 10 1 MMSZ5229ET1 CA9 4.09 4.3 4.52 20 22 2000 0.25 5 1 MMSZ5231ET1 CB2 4.85 5.1 5.36 20 17 1600 0.25 5 2 MMSZ5232ET1, G CB3 5.32 5.6 5.88 20 11 1600 0.25 5 3 MMSZ5234ET1 CB5 5.89 6.2 6.51 20 7 1000 0.25 5 4 MMSZ5235ET1 CB6 6.46 6.8 7.14 20 5 750 0.25 3 5 MMSZ5236ET1, G CB7 7.13 7.5 7.88 20 6 500 0.25 3 6 MMSZ5237ET1 CB8 7.79 8.2 8.61 20 8 500 0.25 3 6.5 MMSZ5240ET1, G CC2 9.50 10 10.50 20 17 600 0.25 3 8 MMSZ5242ET1, G CC4 11.40 12 12.60 20 30 600 0.25 1 9.1 MMSZ5243ET1 CC5 12.35 13 13.65 9.5 13 600 0.25 0.5 9.9 MMSZ5244ET1 CC6 13.30 14 14.70 9.0 15 600 0.25 0.1 10 MMSZ5245ET1 CC7 14.25 15 15.75 8.5 16 600 0.25 0.1 11 MMSZ5246ET1 CC8 15.20 16 16.80 7.8 17 600 0.25 0.1 12 MMSZ5248ET1 CD1 17.10 18 18.90 7.0 21 600 0.25 0.1 14 MMSZ5250ET1 CD3 19.00 20 21.00 6.2 25 600 0.25 0.1 15 MMSZ5252ET1 CD5 22.80 24 25.20 5.2 33 600 0.25 0.1 18 MMSZ5255ET1 CD8 26.60 28 29.40 4.5 44 600 0.25 0.1 21 MMSZ5256ET1 CD9 28.50 30 31.50 4.2 49 600 0.25 0.1 23 MMSZ5257ET1 CE1 31.35 33 34.65 3.8 58 700 0.25 0.1 25 MMSZ5263ET1 CE7 53.20 56 58.80 2.2 150 1300 0.25 0.1 43 Device Marking Min Nom MMSZ5221ET1 CA1 2.28 MMSZ5223ET1 CA3 2.57 MMSZ5226ET1 CA6 MMSZ5228ET1 Device ZZK @ IZK 4. The type numbers shown have a standard tolerance of ±5% on the nominal Zener voltage. 5. Nominal Zener voltage is measured with the device junction in thermal equilibrium at TL = 30°C 1°C. 6. ZZT and ZZK are measured by dividing the AC voltage drop across the device by the ac current applied. The specified limits are for IZ(AC) = 0.1 IZ(dc) with the AC frequency = 1 kHz. http://onsemi.com 2 IR @ VR MMSZ5221ET1 Series VZ, TEMPERATURE COEFFICIENT (mV/°C) VZ, TEMPERATURE COEFFICIENT (mV/°C) TYPICAL CHARACTERISTICS 8 100 7 TYPICAL TC VALUES FOR MMSZ5221BT1 SERIES 6 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 12 TYPICAL TC VALUES FOR MMSZ5221BT1 SERIES VZ @ IZT 10 1 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) 1.2 Ppk, PEAK SURGE POWER (WATTS) PD, POWER DISSIPATION (WATTS) 1000 1.0 PD versus TL 0.8 0.6 100 PD versus TA 0.4 0.2 0 0 25 RECTANGULAR WAVEFORM, TA = 25°C 50 75 100 T, TEMPERATURE (°C) 125 10 1 150 Figure 3. Steady State Power Derating 1 1000 1000 TJ = 25°C IZ(AC) = 0.1 IZ(DC) f = 1 kHz IF, FORWARD CURRENT (mA) IZ = 1 mA 100 75 V (MMSZ5267BT1) 91 V (MMSZ5270BT1) 100 5 mA 20 mA 10 10 150°C 1 10 100 PW, PULSE WIDTH (ms) Figure 4. Maximum Nonrepetitive Surge Power 1000 ZZT, DYNAMIC IMPEDANCE () 0.1 75°C 25°C 0°C 1 1 10 VZ, NOMINAL ZENER VOLTAGE 100 0.4 Figure 5. Effect of Zener Voltage on Zener Impedance 0.5 0.6 0.7 0.8 0.9 1.0 VF, FORWARD VOLTAGE (V) Figure 6. Typical Forward Voltage http://onsemi.com 3 1.1 1.2 MMSZ5221ET1 Series IR, LEAKAGE CURRENT (A) TYPICAL CHARACTERISTICS 1000 TA = 25°C C, CAPACITANCE (pF) 0 V BIAS 1 V BIAS 100 BIAS AT 50% OF VZ NOM 10 1 1 100 10 VZ, NOMINAL ZENER VOLTAGE (V) 1000 100 10 1 +150°C 0.1 0.01 0.001 + 25°C 0.0001 −55°C 0.00001 0 10 Figure 7. Typical Capacitance 20 30 40 50 60 70 VZ, NOMINAL ZENER VOLTAGE (V) Figure 8. Typical Leakage Current 100 100 TA = 25°C IZ, ZENER CURRENT (mA) 10 1 0.1 10 1 0.1 0.01 0 2 4 6 8 VZ, ZENER VOLTAGE (V) 10 12 10 100 50 70 VZ, ZENER VOLTAGE (V) PEAK VALUE IRSM @ 8 s tr 90 30 PULSE WIDTH (tP) IS DEFINED AS THAT POINT WHERE THE PEAK CURRENT DECAY = 8 s 80 70 60 HALF VALUE IRSM/2 @ 20 s 50 40 30 tP 20 10 0 0 20 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) % OF PEAK PULSE CURRENT IZ, ZENER CURRENT (mA) TA = 25°C 0.01 80 40 60 t, TIME (s) Figure 11. 8 × 20 s Pulse Waveform http://onsemi.com 4 80 90 MMSZ5221ET1 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 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 STYLE 1: PIN 1. CATHODE 2. ANODE J 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. http://onsemi.com 5 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 MMSZ5221ET1 Series 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. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. 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