1N4148 signal diode
The 1N4148 is a standard silicon switching signal diode. It is one of the most popular and long-lived switching diodes because of its dependable specifications and low cost. Its name follows the JEDEC nomenclature. The 1N4148 is useful in switching applications up to about 100 MHz with a reverse-recovery time of no more than 4 ns.
History
Texas Instruments announced the 1N914 diode in 1960.[1] It was registered at JEDEC by Texas Instruments no later than 1961, and was second-sourced by 11 manufacturers that same year.[2]
The 1N4148 was registered at JEDEC in 1968 as a silicon switching signal diode for military and industrial applications.[3] It was second-sourced by many manufacturers; Texas Instruments listed their version of the device in an October 1966 data sheet.[4]
These 1N914 and 1N4148 have an enduring popularity in low-current applications.[5]
Overview
As the most common mass-produced switching diode, the 1N4148 replaced the older 1N914. They can be used interchangeably, and are cross-reference replacements for each other. They differed mainly in their
- 25 nA at -20 V, 25°C
- 5 μA at -75 V, 25°C
- 50 μA at -20 V, 150°C
Packages
The JEDEC registered part numbers 1N914 and 1N4148 were originally only available in an axial package, but over time similar parts became available in surface-mount packages too.
- Through-hole package
- 1N4148 in
- Surface-mount packages
Note: Some 1N4148 family surface-mount packages are marked with "T4" text.[14][15]
Specifications
Absolute maximum ratings (stress ratings, consult datasheet for recommended ratings)[10]
- VRRM = 100 V (maximum repetitive reverse voltage)
- IO = 200 mA (average rectified forward current)
- IF = 300 mA (DC forward current)
- If = 400 mA (recurring peak forward current)
- IFSM = 1 A at 1 s pulse width; 4 A at 1 μs pulse width (non-repetitive peak forward surge current)
Electrical and thermal characteristics[10]
- VF = 1 V at 10 mA (maximum forward voltage)[22]
- VR = 75 V at 5 μA; 100 V at 100 μA (minimum breakdown voltage and reverse leakage current)
- trr = 4 ns (maximum reverse-recovery time)
- PD = 500 mW (maximum power dissipation)
See also
- 1N400x general-purpose diodes
- 1N58xx Schottky diodes
- Diode logic
References
- ^ "Texas Instruments 1N914 / 1N916 New Product Advertisement" (PDF). Electronic Industries magazine. March 1960. p. 201.
- ^ "Semiconductor Diode & Rectifier Characteristics Tabulation". Derivation and Tabulation Associates. April 1961. p. 209.
- ^ "Announcement of Electron Device Type Registration, Release No. 4443A". The Joint Electron Device Engineering Council. November 25, 1968. Retrieved May 15, 2021.
- ^ The Transistor and Diode Data Book, Texas Instruments Incorporated, publication no. CC-413 71243-73-CSS, no date, page 10-34
- ^ "A Tutorial on Diodes". Nuts and Volts. September 2004. p. 14. Archived from the original on November 27, 2022.
- Vishay. February 2020. Archived(PDF) from the original on May 15, 2021.
- ^ Vishay. July 2017. Archived(PDF) from the original on May 15, 2021.
- Diodes Inc. May 2012. Archived(PDF) from the original on October 27, 2020.
- ^ "1N4148 Datasheet; DO-35 Package" (PDF). MCC. February 2013. Archived (PDF) from the original on May 15, 2021.
- ^ a b c d "1N4148 / 1N4448 / 1N914 / 1N916 Datasheet; DO-35 Package" (PDF). Fairchild. June 2015. Archived from the original (PDF) on November 1, 2017.
- ^ "1N4148 Datasheet; DO-35 Package" (PDF). Kingtronics. June 2015. Archived (PDF) from the original on October 1, 2020.
- ^ "LL4148 Datasheet; MiniMELF Package" (PDF). Kingtronics. June 2015. Archived (PDF) from the original on October 1, 2020.
- ^ "1N4148UR-1 Datasheet; MiniMELF Package". Microsemi. November 2012. Archived from the original on February 25, 2021.
- ^ Diodes Inc. January 2017. Archived(PDF) from the original on February 13, 2021.
- ^ a b "1N4148W Datasheet; SOD-123 Package" (PDF). MCC. March 2021. Archived (PDF) from the original on May 15, 2021.
- Vishay. February 2018. Archived(PDF) from the original on May 15, 2021.
- Diodes Inc. March 2016. Archived(PDF) from the original on September 22, 2020.
- ^ "1N4148WX Datasheet; SOD-323 Package" (PDF). MCC. December 2020. Archived (PDF) from the original on May 15, 2021.
- Vishay. July 2017. Archived(PDF) from the original on May 15, 2021.
- Diodes Inc. March 2018. Archived from the original(PDF) on September 1, 2020.
- ^ "1N4148X Datasheet; SOD-523 Package" (PDF). MCC. December 2020. Archived (PDF) from the original on May 15, 2021.
- ^ The Semiconctor Data Library (4th ed.). Motorola Semiconductor Products. 1973. p. 73.
Further reading
- Historical databooks
- Transistor and Diode Data Book (1973, 1236 pages), Texas Instruments
- Diode Data Book (1978, 210 pages), Fairchild
- Rectifiers and Zener Diodes Data Book (1988, 508 pages), Motorola
- Rectifier Device Data Book (1995, 410 pages), Motorola