Signal diode with 20 ns recovery for high-speed switching
The 1N4148-1E3 from Microchip Technology is a standard recovery switching diode in the ubiquitous DO-35 axial package, rated 75 V reverse voltage and 200 mA average rectified forward current. Its 20 ns reverse recovery time (trr) makes it suitable for high-speed switching applications where a standard recovery diode is acceptable, such as logic-level clamping, flyback suppression, and signal steering up to several MHz.
Parametric profile for BOM-fit decisions
Forward voltage is 1.2 V maximum at 100 mA, and reverse leakage is 500 nA at 75 V — typical for this JEDEC-registered 1N4148 baseline. Capacitance measures 4 pF at 0 V bias and 1 MHz, low enough for RF coupling and high-speed digital clamping without loading the signal path.
Active lifecycle and compliance posture
RoHS compliant per the manufacturer's declaration, with no exemptions listed; suitable for EU and global markets requiring lead-free assembly.
Sourcing and supply posture
The through-hole DO-35 package is a standard axial-lead format, compatible with existing PCB layouts and hand-assembly or wave-solder processes.