SMD Zener Diode CZRM5221B-HF Thru CZRM5263B-HF Voltage: 2.4 to 56 Volts Power: 500 mWatts RoHS Device Halogen Free Features SOD-123 Flat Lead - Surface Device Type Mounting. 0.146(3.70) 0.130(3.30) - Moisture Sensitivity Level 1. - Clip bonding construction, good thermal capability. 0.067(1.70) 0.059(1.50) 0.028(0.70) 0.020(0.50) - Ideally suited for automated assembly processes. 0.106(2.70) 0.098(2.50) Mechanical data - Case: SOD-123 Flat Lead,Molded plastic. 0.039(1.00) 0.031(0.80) 0.008(0.20) 0.002(0.05) - Terminals: Solder Plated,solderable per MIL-STD-750,method 2026. - Polarity: Cathode band. Dimensions in inches and (millimeter) Circuit Diagram Cathode Anode Maximum Ratings (@Ta=25°C unless otherwise specified) Symbol Value Unit PD 500 mW Storage Temperature Range TSTG -65 to +150 °C Operating and Storage Temperature Range TOPR -65 to +150 °C Parameter Power Dissipation Notes: 1. These ratings are limiting values above which the serviceability of the diode may be impaired. 2. Company reserves the right to improve product design , functions and reliability without notice. Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 1 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode Electrical Characteristics (Ta = 25°C) ZZT @ IZT (Ohm) VZ @ IZT (Volts) Part Number ZZK @ IZK (Ohm) IR @ VR (μA) Marking Code Min Nom Max Max IZT(mA) Max IZK(mA) Max VR(V) CZRM5221B-HF 2.28 2.4 2.52 30 20 1200 0.25 100 1.0 Z2V4 CZRM5222B-HF 2.38 2.5 2.63 30 20 1250 0.25 100 1.0 Z2V5 CZRM5223B-HF 2.57 2.7 2.84 30 20 1300 0.25 75 1.0 Z2V7 CZRM5224B-HF 2.66 2.8 2.94 30 20 1400 0.25 75 1.0 Z2V8 CZRM5225B-HF 2.85 3.0 3.15 29 20 1600 0.25 50 1.0 Z3V0 CZRM5226B-HF 3.14 3.3 3.47 28 20 1600 0.25 25 1.0 Z3V3 CZRM5227B-HF 3.42 3.6 3.78 24 20 1700 0.25 15 1.0 Z3V6 CZRM5228B-HF 3.71 3.9 4.10 23 20 1900 0.25 10 1.0 Z3V9 CZRM5229B-HF 4.09 4.3 4.52 22 20 2000 0.25 5 1.0 Z4V3 CZRM5230B-HF 4.47 4.7 4.94 19 20 1900 0.25 5 2.0 Z4V7 CZRM5231B-HF 4.85 5.1 5.36 17 20 1600 0.25 5 2.0 Z5V1 CZRM5232B-HF 5.32 5.6 5.88 11 20 1600 0.25 5 3.0 Z5V6 CZRM5233B-HF 5.70 6.0 6.30 7 20 1600 0.25 5 3.5 Z6V0 CZRM5234B-HF 5.89 6.2 6.51 7 20 1000 0.25 5 4.0 Z6V2 CZRM5235B-HF 6.46 6.8 7.14 5 20 750 0.25 3 5.0 Z6V8 CZRM5236B-HF 7.13 7.5 7.88 6 20 500 0.25 3 6.0 Z7V5 CZRM5237B-HF 7.79 8.2 8.61 8 20 500 0.25 3 6.5 Z8V2 CZRM5238B-HF 8.27 8.7 9.14 8 20 600 0.25 3 6.5 Z8V7 CZRM5239B-HF 8.65 9.1 9.56 10 20 600 0.25 3 7.0 Z9V1 CZRM5240B-HF 9.5 10 10.50 17 20 600 0.25 3 8.0 Z10V CZRM5241B-HF 10.45 11 11.55 22 20 600 0.25 2 8.4 Z11V CZRM5242B-HF 11.40 12 12.60 30 20 600 0.25 1 9.1 Z12V CZRM5243B-HF 12.35 13 13.65 13 9.5 600 0.25 0.5 9.9 Z13V CZRM5244B-HF 13.30 14 14.70 15 9.0 600 0.25 0.1 10 Z14V CZRM5245B-HF 14.25 15 15.75 16 8.5 600 0.25 0.1 11 Z15V CZRM5246B-HF 15.20 16 16.80 17 7.8 600 0.25 0.1 12 Z16V CZRM5247B-HF 16.15 17 17.85 19 7.4 600 0.25 0.1 13 Z17V CZRM5248B-HF 17.10 18 18.90 21 7.0 600 0.25 0.1 14 Z18V CZRM5249B-HF 18.05 19 19.95 23 6.6 600 0.25 0.1 14 Z19V CZRM5250B-HF 19.00 20 21.00 25 6.2 600 0.25 0.1 15 Z20V Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 2 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode Electrical Characteristics (Ta = 25°C) ZZT @ IZT (Ohm) VZ @ IZT (Volts) Part Number ZZK @ IZK (Ohm) IR @ VR (μA) Marking Code Min Nom Max Max IZT(mA) Max IZK(mA) Max VR(V) CZRM5251B-HF 20.90 22 23.10 29 5.6 600 0.25 0.1 17 Z22V CZRM5252B-HF 22.80 24 25.20 33 5.2 600 0.25 0.1 18 Z24V CZRM5253B-HF 23.75 25 26.25 35 5.0 600 0.25 0.1 19 Z25V CZRM5254B-HF 25.65 27 28.35 41 4.6 600 0.25 0.1 21 Z27V CZRM5255B-HF 26.60 28 29.40 44 4.5 600 0.25 0.1 21 Z28V CZRM5256B-HF 28.50 30 31.50 49 4.2 600 0.25 0.1 23 Z30V CZRM5257B-HF 31.35 33 34.65 58 3.8 700 0.25 0.1 25 Z33V CZRM5258B-HF 34.20 36 37.80 70 3.4 700 0.25 0.1 27 Z36V CZRM5259B-HF 37.05 39 40.95 80 3.2 800 0.25 0.1 30 Z39V CZRM5260B-HF 40.85 43 45.15 93 3.0 900 0.25 0.1 33 Z43V CZRM5261B-HF 44.65 47 49.35 105 2.7 1000 0.25 0.1 36 Z47V CZRM5262B-HF 48.45 51 53.55 125 2.5 1100 0.25 0.1 39 Z51V CZRM5263B-HF 53.20 56 58.80 150 2.2 1300 0.25 0.1 43 Z56V Notes: 1. The zener voltage (VZ) is tested under pulse condition of 15mS. The measured VZ is guaranteed to be within specification with device junction in thermal equilibrium. 2. The device numbers listed have a standard tolerance on the nominal zener voltage of ±5%. 3. The zener impedance is derived from the 60-cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed to IZT or IZK. 4. Company reserves the right to improve product design , functions and reliability without notice. Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 3 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode RATING AND CHARACTERISTIC CURVES (CZRM5221B-HF Thru. CZRM5263B-HF) Fig.1 - Typical Forward Voltage Fig.2 - Effect Of Zener Voltage On Zener Impedance 1000 Dynamic Zener Impedance, (Ω) Forward Current, (mA) 1000 100 150°C 75°C 10 5°C 25°C 1 TJ=25°C IZ(AC)=0.1 IZ(AC) F=1k Hz 100 10 1 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 10 1 100 Forward Voltage, (V) Nominal Zener Voltage, (V) Fig.3 - Power Dissipation VS. Ambient Temp. Fig.4 - Typical Capacitance 1000 1000 0V BIAS 1V BIAS 750 Capacitance, (pF) Power Dissipation, (mW) TA=25°C 500 100 BIAS AT 50% Of Vz Nom 10 250 0 1 0 25 50 75 100 125 150 Temperature (°C) 1 10 100 Nominal Zener Voltage, (V) Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 4 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode RATING AND CHARACTERISTIC CURVES (CZRM5221B-HF Thru. CZRM5263B-HF) Fig.5 - Zener Breakdown Characteristics Fig.6 - Zener Breakdown Characteristics 100 100 TA= 25°C 10 Zener Current, (mA) Zener Current, (mA) TA= 25°C 1 0.1 0.01 10 1 0.1 0.01 0 4 2 6 8 10 12 10 30 50 70 Zener Voltage, ( V ) Zener Voltage, (V) Fig.7 - Typical Leakage Current 1000 Leakage Current, (µA) 100 10 1 +150°C 0.1 0.01 +25°C 0.001 -55°C 0.0001 0.00001 0 10 20 30 40 50 60 70 80 Nominal Zener Voltage, (V) Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 5 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode Reel Taping Specification d P0 T E Index hole P1 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 SOD-123FL SOD-123FL SYMBOL A B C d D D1 D2 (mm) 1.85 ± 0.10 3.94 ± 0.10 1.58 ± 0.10 1.55 + 0.10 178 MAX. 50.0 MIN. 13.0 ± 0.20 (inch) 0.073 ± 0.004 0.155 ± 0.004 0.062 ± 0.004 0.061 + 0.004 7.008 MAX. 1.969 MIN. 0.512 ± 0.008 SYMBOL E F P P0 P1 T W W1 (mm) 1.75 ± 0.10 3.50 ± 0.05 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.10 0.40 Max. 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 ± 0.004 0.016 Max. 0.315 ± 0.012 0.567 MAX. Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 6 QW-JZ005 Comchip Technology CO., LTD. SMD Zener Diode Marking Code Part Number Marking Code CZRM5221B ~ 5263B-HF XXXX XXXX Product type marking code (see page.2~3) Suggested PAD Layout SOD-123FL SIZE (mm) (inch) 2.90 0.132 B 1.10 0.031 C 1.10 0.039 D 4.00 0.163 E 1.60 0.100 D A A E C B Standard Packaging REEL PACK Case Type SOD-123FL REEL Reel Size ( pcs ) (inch) 3,000 7 Company reserves the right to improve product design , functions and reliability without notice. REV: C Page 7 QW-JZ005 Comchip Technology CO., LTD.