Small Signal Switching Diode Features: * * * * Silicon epitaxial planar diode High speed switching diode 500mW power dissipation These diodes are also available in glass case DO-34. Mini-MELF Mechanical Data: * * * Case: DO-35, glass case Polarity: Colour band denotes cathode Weight: 0.004oz, 0.13g Maximum Ratings and Electrical Characteristics: Ratings at 25C ambient temperature unless otherwise specified. 1N4148-T Units Reverse voltage Characteristics VR 75 V Peak reverse voltage VRM 100 V Average forward rectified current half wave rectification with resist. load at TA=25C and f 50Hz IAV 150 mA Forward surge current at t <1s and TJ =25C IFSM 500 mA Power dissipation at TA=25C (Note 1) Ptot 500 mW Junction temperature TJ 175 C TSTG -55 to +175 C Storage temperature range Note (1) Valid provided that leads at a distance of 8mm from case are kept at ambient temperature. Electrical Characteristics: Characteristics Min. Typ. Max. Units - - 1 V - - 25 5 50 nA A A Forward voltage at IF=10mA VF Leakage current at VR=20V at VR=75V at VR=20V TJ =150 IR Capacitance at VF=VR=0V CJ - - 4 pF Voltage rise when switching on tested with 50mA pulses tp=0.1s. Rise time <30ns. fp=5 to 100kHz Vfr - - 2.5 V Reverse recovery time from IF=10mA to IR=1mA VR=6V. RL=100 trr - - 4 ns 350 k/W Thermal resistance junction to ambient (Note 1) RJA v 0.45 Rectification efficiency at 100MHz, VRF=2V Note (1) Valid provided that leads at a distance of 8mm from case are kept at ambient temperature. - www.element14.com www.farnell.com www.newark.com Page <1> 25/02/13 V1.0 Small Signal Switching Diode www.element14.com www.farnell.com www.newark.com Page <2> 25/02/13 V1.0 Small Signal Switching Diode Part Number Table Description Part Number Small Signal Switching Diode 1N4148-T Important Notice : This data sheet and its contents (the "Information") belong to the members of the Premier Farnell group of companies (the "Group") or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group's liability for death or personal injury resulting from its negligence. Multicomp is the registered trademark of the Group. (c) Premier Farnell plc 2012. www.element14.com www.farnell.com www.newark.com Page <3> 25/02/13 V1.0