Diode Fast Features: High efficiency, low V F High current capability High reliability High surge current capability For use in low voltage, high frequency inventor , free wheeling, and polarity protection application Specifications: Mechanical Data: Cases : Moulded plastic DO-15 Lead : Pure tin plated, lead free, solderable per MIL-STD-202, Method 208 guaranteed Polarity : Colour band denotes cathode end High temperature soldering guaranteed : 260C/10 seconds/0.375, (9.5mm) lead lengths at 5lbs., (2.3kg) tension Mounting position : Any Weight : 0.4g Maximum Ratings and Electrical Characteristics: Rating at 25C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%. Type Number Symbol HER152 HER155 HER157 Units Maximum Recurrent Peak Reverse Voltage V 100 400 800 rrm Maximum RMS Voltage V 70 280 560 V rms Maximum DC Blocking Voltage 100 400 800 V dc Maximum Average Forward Rectified Current 0.375 (9.5mm) Lead Length 1.5 I (va ) at T = 55C a A Peak Forward Surge Current, 8.3ms Single Half Sine-wave Superimposed on Rated Load I 50 fsm (JEDEC method ) Maximum Instantaneous Forward Voltage 1 1.3 1.7 V V f at 1.5A www.element14.com www.farnell.com www.newark.com Page <1> 08/02/13 V1.0Diode Fast Type Number Symbol HER152 HER155 HER157 Units Maximum DC Reverse Current at T = 25C 5 A a I r 150 A at Rated DC Blocking Voltage at T = 125C a Maximum Reverse Recovery Time (Note 1) 50 75 nS T rr Typical Junction Capacitance (Note 2) 50 35 pF C j Typical Thermal Resistance 60 C/W R JA Operating Temperature Range T j -65 to +150 C Storage Temperature Range T stg Note: 1. Reverse Recovery Test Conditions: I = 0.5A, I = 1A, I = 0.25A. F R RR Note: 2. Measured at 1MHz and Applied Reverse Voltage of 4V DC. Note: 3. Mount on Cu-Pad Size 10mm 10mm on PCB. Ratings and Characteristic Curves (HER152, HER155, HER157) www.element14.com www.farnell.com www.newark.com Page <2> 08/02/13 V1.0