MMBZ5221B – MMBZ5259B Surface Mount Zener Diode Voltage Range 2.4 to 39 Volts 350m Watts Power Dissipation SOT-23 Features a a a a 0.020(0.51) 0.015(0.37) Planar die construction 350mW power dissipation on FR-4 PCB general purpose, medium current Ideally suited for automated assembly processes a Standard zener voltage tolerance is ±5% tolerance with a :B: suffix 0.055(1.40) 0.047(1.19) 0.080(2.05) 0.070(1.78) 0.024(0.61) 0.018(0.45) Mechanical Data a Case: SOT-23, Molded plastic a Terminals: Solderable per MIIL-STD-202, Method 208 a Polarity: See diagram a Marking: Marking Code (see table on Page 2) aWeight: 0.008 grams (approx.) 0.098(2.50) 0.083(2.10) 0.041(1.05) 0.047(0.89) 0.120(3.05) 0.104(2.65) 0.043(1.10) 0.035(0.89) 0.006(0.15) 0.001(0.013) 0.024(0.61) 0.018(0.45) 0.007(0.178) 0.003(0.076) Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Maximum Ratings Type Number Forward Voltage Symbol @ IF = 10mA Power Dissipation (Note 1) Thermal Resistance Junction to Ambient Air (Note 1) Operating and Storage Temperature Range VF Pd RJA Value 0.9 350 357 TJ ,TSTG -65 to + 150 Notes: 1. Valid Provided that Terminals are Kept at Ambient Temperature. 2. Tested with Pulses, Tp1.0ms - 142 - Units V mW K/W O C ELECTRICAL CHARACTERISTICS (TA=25OC Device (Note 1) Device Marking Code Zener Voltage Range (Note 2) Vz @ Izt IZT Nom (V) Min (V) Max (V) mA unless otherwise noted) Maximum Zener Maximum Reverse Impedance ZZK @ IZK Leakage Current IR @ VR ZZT @ IZT = 0.25mA Ohms Ohms uA Volts MMBZ5221B KC1 2.4 2.28 2.52 20 30 1200 100 1.0 MMBZ5223B KC3 2.7 2.57 2.84 20 30 1300 75 1.0 MMBZ5225B KC5 3.0 2.85 3.15 20 30 1600 50 1.0 MMBZ5226B KG1 3.3 3.14 3.47 20 28 1600 25 1.0 MMBZ5227B KG2 3.6 3.42 3.78 20 24 1700 15 1.0 MMBZ5228B KG3 3.9 3.71 4.10 20 23 1900 10 1.0 MMBZ5229B KG4 4.3 4.09 4.52 20 22 2000 5.0 1.0 MMBZ5230B KG5 4.7 4.47 4.94 20 19 1900 5.0 2.0 MMBZ5231B KE1 5.1 4.85 5.36 20 17 1600 5.0 2.0 MMBZ5232B KE2 5.6 5.32 5.88 20 11 1600 5.0 3.0 MMBZ5233B KE3 6.0 5.70 6.30 20 7 1600 5.0 3.5 MMBZ5234B KE4 6.2 5.89 6.51 20 7 1000 5.0 4.0 MMBZ5235B KE5 6.8 6.46 7.14 20 5 750 3.0 5.0 MMBZ5236B KF1 7.5 7.13 7.88 20 6 500 3.0 6.0 MMBZ5237B KF2 8.2 7.79 8.61 20 8 500 3.0 6.5 MMBZ5238B KF3 8.7 8.27 9.14 20 8 600 3.0 6.5 MMBZ5239B KF4 9.1 8.65 9.56 20 10 600 3.0 7.0 MMBZ5240B KF5 10 9.50 10.50 20 17 600 3.0 8.0 MMBZ5241B KH1 11 10.45 11.55 20 22 600 2.0 8.4 MMBZ5242B KH2 12 11.40 12.60 20 30 600 1.0 9.1 MMBZ5243B KH3 13 12.35 13.65 9.5 13 600 0.5 9.9 MMBZ5245B KH5 15 14.25 15.75 8.5 16 600 0.1 11 MMBZ5246B KJ1 16 15.20 16.80 7.8 17 600 0.1 12 MMBZ5248B KJ3 18 17.10 18.90 7.0 21 600 0.1 14 MMBZ5250B KJ5 20 19.00 21.00 6.2 25 600 0.1 15 MMBZ5251B KK1 22 20.90 23.10 5.6 29 600 0.1 17 MMBZ5252B KK2 24 22.80 25.20 5.2 33 600 0.1 18 MMBZ5254B KK4 27 25.65 28.35 5.0 41 600 0.1 21 MMBZ5255B KK5 28 26.60 29.40 4.5 44 600 0.1 21 MMBZ5256B KM1 30 28.50 31.50 4.2 49 600 0.1 23 MMBZ5257B KM2 33 31.35 34.65 3.8 58 700 0.1 25 MMBZ5258B KM3 36 34.20 37.80 3.4 70 700 0.1 27 MMBZ5259B KM4 39 37.05 40.95 3.2 80 800 0.1 30 Notes: 1: Valid provided that device terminals are kept at ambient temperature. 2. Tested with pulses, Tpƙ ƙ 1.0ms. - 143 - RATINGS AND CHARACTERISTIC CURVES (MMBZ5221B - MMBZ5259B) FIG.1- POWER DISSIPATION VS AMBIENT TEMPERATURE 0.6 PD, POWER DISSIPATION (W) 0.5 0.4 0.3 0.2 0.1 0 100 100 100 100 100 100 100 TA, AMBIENT TEMPERATURE ( C) - 144 -