MMBZ5257B

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