1N746A~1N759A Zener diode Features 1. High reliability 2. Very sharp reverse characteristic 3. Zener voltage 3.3V to 12V 4. VZ-tolerance5% Applications Voltage stabilization Absolute Maximum Ratings Tj=25 Parameter Test Conditions Type Symbol Value Unit PV 500 mW Z-current IZ PV/VZ mA Junction temperature Tj 200 Tstg -65~+200 Symbol Value Unit RthJA 300 K/W Tamb75 Power dissipation Storage temperature range Maximum Thermal Resistance Tj=25 Parameter Junction ambient Test Conditions I=9.5mm(3/8") TL=constant Stresses exceeding maximum ratings may damage the device. Maximum ratings are stress ratings only. Functional operation above the recommended operating conditions is not implied. Extended exposure to stresses above the recommended operating conditions may affect device reliability. Electrical Characteristics Tj=25 Parameter Forward voltage Test Conditions Type IF=200mA Symbol VF Min Typ Max Unit 1.5 V Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 1/6 1N746A~1N759A Type 1N746A 1N747A 1N748A 1N749A 1N750A 1N751A 1N752A 1N753A 1N754A 1N755A 1N756A 1N757A 1N758A 1N759A 1) VZnom1) V 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 12 IZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 for ZZT 28 24 23 22 19 17 11 7 5 6 8 10 17 30 IR A 10 10 10 2 2 1 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 at VR V 1 1 1 1 1 1 1 1 1 1 1 1 1 1 IZM2) mA 110 100 95 85 75 70 65 60 55 50 45 40 35 30 Tolerance and voltage designation(Vz): The type numbers shown have a standard tolerance of 5% on the nominal zener voltage, C for 2%, D for 1%. 2) Maximum zener current ratings(IZM): Maximum zener current ratings are based on maximum zener voltage of the individual units and JEDEC 250 mW rating. Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 2/6 1N746A~1N759A Characteristics (Tj=25 unless otherwise specified) Figure 1. Typical Thermal Resistance Figure 2. Typical Forward Characteristics Figure 3. Temperature coefficients (-55 to +150 temperature range; 90% of the units are in the ranges indicated.) Figure 4. Effect of zener current on zener impedance Figure 5. Effect of zener voltage on zener impedance Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 3/6 1N746A~1N759A Figure 6. Zener Voltage versus Zener Current - Vz=1 thru 16 Volts Figure 7. Zener Voltage versus Zener Current - Vz=15 thru 30 Volts Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 4/6 1N746A~1N759A Figure 8. Zener Voltage versus Zener Current - Vz=30 thru 75 Volts Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 5/6 1N746A~1N759A Dimensions in mm Cathode identification Type No. 0.55 max. 1N 75 Cathode 2.0 max. 26 min. 4.2 max. Anode 26 min. Standard Glass Case JEDEC DO-35 Marking 1N 75 1A Excel Semiconductor www.excel-semi.com FaxBack +86-512-66607370 Rev. 3e, 1-Nov-2006 6/6