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RoHS Compliant?

IP:

IV:

VF:

Package Type:

Help with Tunnel Diodes specifications:

Type
   Tunnel Diode Type       
   Your choices are...         
   Standard Tunnel Diode       Devices are standard tunnel diodes. 
   Back Tunnel Diode       A back diode is tunnel diode where the peak current (IP) is very small or totally suppressed. This causes the diode to resemble a conventional PN junction diode. Back diodes have a very small reverse breakdown voltage that produces a very high current.  Therefore, conduction is heavier in reverse bias than in forward bias. The term "back" (or "backward") is meant to imply this type of conduction. 
   Other       Other unlisted, specialized, or proprietary diode types. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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RoHS Compliance
   RoHS Compliant       Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl, and polybrominated diphenyl ether. RoHS will become effective on July 1, 2006. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Performance
   IP       The peak current (IP) is the maximum current in the tunneling (negative resistance) region. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   IV       The valley current (IV) is the minimum current in the tunneling (negative resistance) region. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   VP       The peak voltage (VP) is the maximum voltage in the tunneling (negative resistance) region. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   VV       The valley voltage (VV) is the minimum voltage in the tunneling (negative resistance) region. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   VR       VR is the maximum allowable reverse voltage that can be applied repeatedly. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   VF       VF is the forward voltage at specified forward current input. It is also defined as the voltage across the diode terminals that results from the flow of current in the forward direction. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   PD       This is the maximum permissible power dissipation (PD) per output (in W) of the diode at specified ambient temperature.  Power dissipation is the power dissipated by the diode while in the ON state. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   CT       CT is the terminal capacitance when the specified reverse voltage and frequency are applied. It is also known as diode capacitance (CD). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Tj       Junction operating temperature (Tj) is the range of temperatures over which the diode is designed to operate.  
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Packaging
   Package Type       
   Your choices are...         
   DO-4       DO-4 is a diode outline (DO) package. 
   DO-5       DO-5 is a diode outline (DO) package. 
   DO-8       DO-8 is a diode outline (DO) package. 
   DO-9       DO-9 is a diode outline (DO) package. 
   DO-15       DO-15 is a diode outline (DO) package. 
   DO-27       DO-27 is a diode outline (DO) package. 
   DO-34       DO-34 is a diode outline (DO) package. 
   DO-35       DO-35 is a diode outline (DO) package. 
   DO-41       DO-41 is a diode outline (DO) package. 
   DO-201       DO-201 is a diode outline (DO) package. 
   DPAK       Discrete package or deca-watt (DPAK). 
   D2PAK       D2PAK is large surface mounted package that include a heat sink. 
   MELF       Metal electrode leadless face (MELF) component diodes have metallized terminals at each end of a cylindrical body. MELF components are designed to fit the same footprints as flat components. MELF packages are available on plastic tape and reel. 
   QuadroMELF       QuadroMELF diodes have a square cross section to provide better on board stability and greater "pick and place" accuracy. 
   MicroMELF       MicroMELF is the smallest version of MELF. 
   MiniMELF       MiniMELF is a miniature version of MELF. 
   POWERMITE® 3       Powermite®3 is a compact, high power density surface mount rectifier package that offers low thermal resistance. Powermite®3 is a registered trademark of Diodes, Inc.  
   SC-59       SC-59 is a plastic surface mounted package with three leads. 
   SC-74       SC-74 is a plastic surface mounted package with three leads. 
   SC-76       SC-76 is a plastic surface mounted package with three leads. 
   SMA       Subminiature-A (SMA) connectors are intended for use on semi-rigid cables in components. They directly interface the cable dielectric without air gaps. They are not intended for permanent connections. 
   SMB       Subminiature-N (SMB) connectors are snap-mount connectors that are available either in 50Ù or 75Ù impedances. They are used for frequencies from DC to 4GHz. 
   SOD-80       SOD-80 is a plastic, surface mounted, small outline diode (SOD) package with two leads. 
   SOD-106       SOD-106 is a small outline diode (SOD) package. 
   SOD-123       SOD-123 is a small outline diode (SOD) package. 
   SOD-323       SOD-323 is a small outline diode (SOD) package. 
   SOD-523       SOD-523 is a small outline diode (SOD) package. 
   SOT23       SOT23 is a surface mounted, small outline transistor (SOT) package with three leads. 
   SOT26       SOT26 is a surface mounted, small outline transistor (SOT) package. 
   SOT89       SOT89 is a plastic, surface mounted, small outline transistor (SOT) package with three leads and a collector pad for good heat transfer. Unlike other packages, SOT89 lead posts are up-set and not down-set. SOT89 is designed for medium power and high-speed switching applications. It is also used in applications that feature very low RDS (on), no secondary breakdown, and direct interface to complementary metal oxide semiconductor (CMOS) and transistor-transistor logic (TTL). 
   SOT143       SOT143 is a plastic, surface mounted, small outline transistor (SOT) package with four leads. 
   SOT223       SOT223 is a plastic, surface mounted, small outline transistor (SOT) package with four leads and a heat sink. During soldering, the formed leads absorb thermal stress and eliminate the possibility of damage to the die. The encapsulation material enhances device reliability, allowing SOT223 to provide excellent performance in environments with high temperatures and humidity levels. SOT223 provides power dissipation of 1W ~ 1.5W. 
   SOT323       SOT323 is a plastic, surface mounted, small outline transistor (SOT) package with three leads. 
   SOT343       SOT343 is a surface mounted, small outline transistor (SOT) package. 
   SOT346       SOT346 is a surface mounted, small outline transistor (SOT) package. 
   SOT353       SOT353 is a surface mounted, small outline transistor (SOT) package. 
   SOT363       SOT363 is a surface mounted, small outline transistor (SOT) package. 
   SOT416       SOT416 is a surface mounted, small outline transistor (SOT) package. 
   SOT457       SOT457 is a surface mounted, small outline transistor (SOT) package. 
   SOT523       SOT523 is a surface mounted, small outline transistor (SOT) package. 
   TO-3       TO-3 is a transistor outline (TO) package. 
   TO-66       TO-66 is a transistor outline (TO) package. 
   TO-92       TO-92 is a single in-line, transistor outline (TO) package that is often used for low power devices. One of the oldest power packages, TO-92 is suitable for applications in office and communication equipment. 
   TO-202       TO-202 is a transistor outline (TO) package. 
   TO-220       TO-220 is a transistor outline (TO) package that is suitable for high power, medium current, and fast-switching power devices. TO-220 is used in home appliances, office and industrial equipment, and personal and consumer electronics. A package variant, TO-220 Full Pack, includes a fully encapsulated heat sink that does not require extra hardware for electrical isolation. TO-220 Full Pack has the same footprint as TO-220, provides electrical isolation up to 5 KV, and is often used in motor drive applications and power supplies. 
   TO-237       TO-237 is a transistor outline (TO) package. 
   TO-247       TO-247 is a transistor outline (TO) package. 
   Other       Other unlisted or proprietary diode packages. 
   Search Logic:      Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Pin Count       The number of physical connection points (e.g., pins, pads, balls) on the package. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Number of Diodes in Package       The number of diodes embedded in the chip (package). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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