COMCHIP SMD Zener Diode SMD Diodes Specialist CZRT5221B-HF Thru CZRT5267B-HF Voltage: 2.4 to 39 Volts Power: 350 mWatts RoHS Device Features SOT-23 Halogen free. Planar die construction 350mW power dissipation on FR-4 PCB 0.119(3.00) 0.110(2.80) 3 Ideally suited for automated assembly process 0.056(1.40) 0.047(1.20) 1 General purpose, medium current 2 0.079(2.00) 0.071(1.80) Mechanical data Case: SOT-23, Molded plastic 0.006(0.15) 0.002(0.05) Terminals: Solderable per MIL-STD202G,method 208 0.041(1.05) 0.100(2.55) 0.035(0.90) 0.089(2.25) Polarity: See diagram below 0.004(0.10) max Mounting position: Any 0.020(0.50) 0.008(0.20) min 0.012(0.30) Marking: see table on page2 Weight: 0.0078 gram(approx.). Dimensions in inches and (millimeter) Single Electrical Characteristics (TA=25°C, unless otherwise specified) Symbol Value Unit Forward voltage drop at IF=10mA VF 0.9 V Power dissipation (Notes A),TA = 25°C PD 350 mW RθJA 357 TJ -65 to +150 Parameter Thermal resistance, junction to ambient air (Notes A) Operating junction and storage temperature range o C/W O C Notes: A. Valid provided that device terminals are kept at ambient temperature. B. Tested with pulses, Tp≤1.0mS. REV:A Page 1 QW-JZ002 Comchip Technology CO., LTD. COMCHIP SMD Zener Diode SMD Diodes Specialist Electrical Characteristics(Ta = 25°C) Part Number Zener Voltage Operating Resistance Rising Operating Resistance Reverse Current VZ(V)@IZT ZZT(Ohm) ZZK(Ohm) IR(uA) Marking Code Min. Nom. Max. Max. IZT(mA) Max. IZK(mA) Max. VR(V) CZRT5221B-HF 2.28 2.4 2.52 30 20.0 1200 0.25 100 1.0 KC1 CZRT5222B-HF 2.38 2.5 2.63 30 20.0 1250 0.25 100 1.0 KC2 CZRT5223B-HF 2.57 2.7 2.84 30 20.0 1300 0.25 75 1.0 KC3 CZRT5225B-HF 2.85 3.0 3.15 30 20.0 1600 0.25 50 1.0 KC5 CZRT5226B-HF 3.14 3.3 3.47 28 20.0 1600 0.25 25 1.0 KG1 CZRT5227B-HF 3.42 3.6 3.78 24 20.0 1700 0.25 15 1.0 KG2 CZRT5228B-HF 3.71 3.9 4.10 23 20.0 1900 0.25 10 1.0 KG3 CZRT5229B-HF 4.09 4.3 4.52 22 20.0 2000 0.25 5.0 1.0 KG4 CZRT5230B-HF 4.47 4.7 4.94 19 20.0 1900 0.25 5.0 2.0 KG5 CZRT5231B-HF 4.85 5.1 5.36 17 20.0 1600 0.25 5.0 2.0 KE1 CZRT5232B-HF 5.32 5.6 5.88 11 20.0 1600 0.25 5.0 3.0 KE2 CZRT5234B-HF 5.89 6.2 6.51 7 20.0 1000 0.25 5.0 4.0 KE4 CZRT5235B-HF 6.46 6.8 7.14 5 20.0 750 0.25 3.0 5.0 KE5 CZRT5236B-HF 7.13 7.5 7.88 6 20.0 500 0.25 3.0 6.0 KF1 CZRT5237B-HF 7.79 8.2 8.61 8 20.0 500 0.25 3.0 6.5 KF2 CZRT5239B-HF 8.65 9.1 9.56 10 20.0 600 0.25 3.0 7.0 KF4 CZRT5240B-HF 9.50 10 10.50 17 20.0 600 0.25 3.0 8.0 KF5 CZRT5241B-HF 10.45 11 11.55 22 20.0 600 0.25 2.0 8.4 KH1 CZRT5242B-HF 11.40 12 12.60 30 20.0 600 0.25 1.0 9.1 KH2 CZRT5243B-HF 12.35 13 13.65 13 9.5 600 0.25 0.5 9.9 KH3 CZRT5245B-HF 14.25 15 15.75 16 8.5 600 0.25 0.1 11 KH5 CZRT5246B-HF 15.20 16 16.80 17 7.8 600 0.25 0.1 12 KJ1 CZRT5248B-HF 17.10 18 18.90 21 7.0 600 0.25 0.1 14 KJ3 CZRT5250B-HF 19.00 20 21.00 25 6.2 600 0.25 0.1 15 KJ5 CZRT5251B-HF 20.90 22 23.10 29 5.6 600 0.25 0.1 17 KK1 CZRT5252B-HF 22.80 24 25.20 33 5.2 600 0.25 0.1 18 KK2 CZRT5254B-HF 25.65 27 28.35 41 5.0 600 0.25 0.1 21 KK4 CZRT5255B-HF 26.60 28 29.40 44 4.5 600 0.25 0.1 21 KK5 CZRT5256B-HF 28.50 30 31.50 49 4.2 600 0.25 0.1 23 KM1 CZRT5257B-HF 31.35 33 34.65 58 3.8 700 0.25 0.1 25 KM2 CZRT5258B-HF 34.20 36 37.80 70 3.4 700 0.25 0.1 27 KM3 CZRT5259B-HF 37.05 39 40.95 80 3.2 800 0.25 0.1 30 KM4 CZRT5260B-HF 40.85 43 45.15 93 3.0 900 0.25 0.1 33 KM5 CZRT5261B-HF 44.65 47 49.35 105 2.7 1000 0.25 0.1 36 KN1 CZRT5262B-HF 48.45 51 53.55 125 2.5 1100 0.25 0.1 39 KN2 CZRT5263B-HF 53.20 56 58.80 150 2.2 1300 0.25 0.1 43 KN3 CZRT5264B-HF 57.00 60 63.00 170 2.1 1400 0.25 0.1 46 KN4 CZRT5265B-HF 58.90 62 65.10 185 2.0 1500 0.25 0.1 47 KN5 CZRT5266B-HF 64.60 68 71.40 230 1.8 1600 0.25 0.1 52 KP1 CZRT5267B-HF 71.25 75 78.75 270 1.7 1400 0.25 0.1 56 KP2 Note: 5% Standard Vz Tolerance REV:A Page 2 QW-JZ002 Comchip Technology CO., LTD. COMCHIP SMD Zener Diode SMD Diodes Specialist RATING AND CHARACTERISTIC CURVES (CZRT5221B-HF Thru CZRT5267B-HF) Fig.2 Typical leakage current Fig.1 Typical forward voltage 1000 1000 100 Leakage current(uA) -5° C 5°C +2 +7 5 10 °C 0° C +1 5 Forward current(mA) 10 100 1 +150°C 0.1 0.01 +25°C 0.001 0.0001 1 -55°C 0.00001 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 0 1.2 10 30 20 Forward Voltage(V) 50 60 70 80 90 Normal zener voltage(V) Fig.4 Steady state power derating Fig.3 Temperature coefficents 100 0.6 TA = 25°C 0.5 Power dissipation(W) Temperature coefficient,(mA/°C) 40 10 0.4 0.3 0.2 0.1 1 10 100 0 0 25 Nominal zener voltage(V) 50 75 100 125 150 175 Temperature(°C) REV:A Page 3 QW-JZ002 Comchip Technology CO., LTD. COMCHIP SMD Zener Diode SMD Diodes Specialist Reel Taping Specification d P0 P1 T E Index hole F W B P C A 12 o 0 D2 D1 D W1 Trailer Device ....... ....... End ....... ....... Leader ....... ....... ....... ....... 10 pitches (min) Start 10 pitches (min) Direction of Feed SOT-23 SOT-23 SYMBOL A B C d D D1 D2 (mm) 3.10 ± 0.10 2.85 ± 0.10 1.40 ± 0.10 1.55 ± 0.10 178 ± 1 50.0 MIN. 13.0 ± 0.20 (inch) 0.122 ± 0.004 0.112 ± 0.004 0.055 ± 0.004 0.061 ± 0.004 7.008 ± 0.04 1.969 MIN. 0.512 ± 0.008 SYMBOL E F P P0 P1 W W1 (mm) 1.75 ± 0.10 3.50 ± 0.05 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 8.00 ± 0.30 14.4 MAX. (inch) 0.069 ± 0.004 0.138 ± 0.002 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.315 ± 0.012 0.567 MAX. REV:A Page 4 QW-JZ002 Comchip Technology CO., LTD. COMCHIP SMD Zener Diode SMD Diodes Specialist Suggested PAD Layout SOT-23 SIZE (mm) (inch) A 0.80 0.031 B 1.90 0.075 C 2.02 0.080 D 2.82 0.111 A C D B Standard Package Qty per Reel Reel Size (Pcs) (inch) 3000 7 Case Type SOT-23 REV:A Page 5 QW-JZ002 Comchip Technology CO., LTD.