10BQ040  
					Bulletin PD-2.397 rev. G 07/04  
					Voltage Ratings  
					Part number  
					10BQ040  
					VR  
					Max. DC Reverse Voltage (V)  
					40  
					VRWM Max. Working Peak Reverse Voltage (V)  
					Absolute Maximum Ratings  
					Parameters  
					10BQ Units Conditions  
					IF(AV) Max. Average Forward Current  
					1.0  
					A
					50%duty cycle@TL =112°C,rectangular waveform  
					IFSM Max.PeakOneCycleNon-Repetitive  
					Surge Current  
					430  
					A
					5µs Sineor3µsRect.pulse  
					Following any rated  
					load condition and  
					45  
					3.0  
					1.0  
					10msSineor6msRect. pulse with rated VRRMapplied  
					EAS Non-Repetitive Avalanche Energy  
					mJ TJ =25°C,IAS =1A,L=6mH  
					IAR  
					Repetitive Avalanche Current  
					A
					Current decayinglinearlytozeroin1µsec  
					Frequencylimited byTJ max.Va=1.5xVr typical  
					Electrical Specifications  
					Parameters  
					10BQ Units  
					Conditions  
					VFM Max. Forward Voltage Drop  
					* See Fig. 1  
					(1)  
					0.53  
					0.70  
					0.49  
					0.64  
					0.1  
					V
					V
					V
					V
					@ 1A  
					TJ = 25 °C  
					@ 2A  
					@ 1A  
					@ 2A  
					TJ = 125 °C  
					IRM Max. Reverse Leakage Current (1)  
					* See Fig. 2  
					mA TJ = 25 °C  
					mA TJ = 125 °C  
					VR = rated VR  
					4
					CT  
					LS  
					Typical Junction Capacitance  
					Typical Series Inductance  
					80  
					2.0  
					pF  
					VR = 5VDC, (test signal range 100kHz to 1MHz) 25°C  
					nH Measured lead to lead 5mm from package body  
					V/ µs  
					dv/dt Max. Volatge Rate of Charge  
					(Rated VR)  
					10000  
					(1) Pulse Width < 300µs, Duty Cycle < 2%  
					Thermal-Mechanical Specifications  
					Parameters  
					10BQ Units  
					Conditions  
					TJ  
					Max.Junction Temperature Range (*) - 55 to 150 °C  
					Tstg Max. Storage Temperature Range -55 to150 °C  
					RthJL Max. Thermal Resistance Junction  
					36  
					80  
					°C/W DC operation  
					°C/W  
					to Lead  
					(**)  
					RthJA Max. Thermal Resistance Junction  
					to Ambient  
					wt  
					Approximate Weight  
					0.10(0.003) g (oz.)  
					Case Style  
					Device Marking  
					SMB  
					IR1F  
					Similar DO-214AA  
					(*) dPtot  
					dTj  
					1
					<
					thermal runaway condition for a diode on its own heatsink  
					Rth(j-a)  
					(**) Mounted 1 inch square PCB  
					2
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