1n9148 vs 1n4148 pdf

The cathode is marked on the body of a diode by a band as shown below. B2 2 of 2 1n4148 1n4448 1 10 100 10,000 0 100 200 i, leakage current na r t, junction temperature c fig. B22 of 21n4148 1n444811010010,0000 datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits. B2 1nfdll 914ab 916ab 4148 4448 small signal diode typical characteristics continued figure 5. Fast switching diodes massachusetts institute of technology. Sunkee 100pcs 1n4148 in4148 do35 switching signal doide. The 1n4148 replaced the 1n914, which had a much higher leakage current 5 microamps vs. It is used in wave shaping, clamping, protection circuit and the main application of a signal diode is a flyback diode or freewheeling diode. Reverse current vs reverse voltage 750 700 600 550 500 ir 10 to 25 oc o 0. Figure1 forward characteristics figure2 leakage current vs junction temperature downloaded from.

Recent listings manufacturer directory get instant. Unit forward voltage at if 10 ma vf 1 v leakage current at vr 20 v at vr 75 v at v r 20 v, tj 150. There are 1n914, 1n914a, 1n914b, 1n916, 1n916a, 1n916b, 1n4148, 1n4448, with fairly subtle differences between them. Protect power electronic switches that are operating with high switching frequency. Apr 01, 20 i recently looked at a commercially available circuit that uses a 555 to operate a 12v relay. Philipsnxpon semiconductortak cheong get it fast same day shipping. The diode 1n4448 is the target part 1% the 1n4148 is the grade out part. Do35 do204ah electrical characteristics tamb 25 c, unless otherwise specified parameter test condition symbol min.

Marking type number marking code 1n4148 1n4148ph or 4148ph 1n4448 1n4448 fig. On semiconductor 1n4148 diodes rectifiers single parts available at digikey. Small signal diode, 1n4148 datasheet, 1n4148 circuit, 1n4148 data sheet. Satellite tv equipment free delivery possible on eligible purchases. All the part names for which the file 1n4148 1n4154. Since leakage is almost never a desirable property, manufacturers today produce the 1n4148 and sell it as either part number. Switching diodes are usually single pn diodes and their functionality is similar to that of normal switch. Diode crossreference guide continued 1n970a 1n970b 1n971 1n971a 1n971b 1n972 1n972a 1n972b 1n973 1n973a 1n973b 1n97a 1n98 1n98a 1n99 1n993 1n994 1n995. Fast switching diodes features silicon epitaxial planar diodes electrically equivalent diodes. Macom and its affiliates reserve the right to make changes to the products or. Unit forward voltage if 10 ma vf 1v breakdown voltage ir 100. Small signal fast switching diodes vishay intertechnology. Pricing and availability on millions of electronic components from digikey electronics. Diodes marked 1n9148 should read 1n4148 although you can use 1n914.

It is basically a diode used for fast switching purposes. Is a 1n4148 suitable, and what specifications does a diode need for this. The circuit included a 1n4148 across the coil of the relay, but i have always used a 1n4001. To use it or at least construct your own optocoupler that matches its specs. The reverse current of a diode will approximately double for every ten 10 degree c increase in temperature figure 2.

The reverse current of a diode will approximately double for every ten 10 degree c increase in temperature 10 20. The 1n4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the amazon community. Meet all present and future national and international statutory requirements. The 1n4148 is useful in switching applications up to about 100 mhz with a reverserecovery time of no more than 4 ns. In the schematic symbol, the tip of the triangle with the line on top of it is the cathode. It is one of the most popular and longlived switching diodes because of its dependable specifications and low cost. I have read a lot and i cant seem to come up with a logical reason why these two diodes have different names.

Signal diode characteristics, types and specifications. New jersey semiconductor 1n4148 1n4154 datasheet pdf. Today, i am going to give an introduction to 1n4148. A i r 10 100 v r e v e r s e v o l t a g e, v r v 110. Philips highspeed diodes,alldatasheet, datasheet, datasheet search site for electronic. Some devices use an a,b,c grade designator such as 1n753a or 1n753b to designate the tighter tolerances. To our customers, old company name in catalogs and other documents on april 1st, 2010, nec electronics corporation merged with renesas technology corporation, and renesas electronics corporation took over all the business of both. Glass package version for high reliability a b a a. General purpose, industrial, military and space applications.

Macom and its affiliates reserve the right to make changes to the products or information contained herein without notice. Fairchild, alldatasheet, datasheet, datasheet search site for electronic components and. Actually, the 1n4148 1n914 has softer clipping than its likely substitute, the 1n40014004 ie diodes around the 700mv for 1ma range. We will see about 1n4148, a very commonly used silicon switching signal diode, its vi characteristics and few important specifications. Buy sunkee 100pcs 1n4148 in4148 do35 switching signal doide. Reverse voltage package dimensions in millimeters inches. Available in both throughhole and surface b mount versions c d c 1n4148 ll4148. Hermetically sealed glass with a stud on either side of the glass passivated chip provides excellent stability. Looking at the fairchild datasheet, the guaranteed max capacitance is less for the 916ab and 4448 than the 914ab4184 2pf vs. The factory should be consulted on applications involving pulsed or low duty cycle.

Absolute maximum ratings tamb 25 c, unless otherwise specified. Forward voltage vs forward current vf 1 to 1 nfdll 914ab 916ab 4148 4448 rev. Difference between 1n914 and 1n4148 diodes electrical. If i have a circuit that uses say a 1n914 can i shove a 1n4148 and the circuit still work.

Valid provided that device terminals are kept at ambient temperature. Under the semiconductors discretes heading, click the diodes small signal link and you get to a page where there are beaucoup entries for 1n4148. The 1n4148 is a standard silicon switching signal diode. Mar 12, 2003 i have read a lot and i cant seem to come up with a logical reason why these two diodes have different names.