Protected Mosfet
Revision as of 06:14, 30 December 2014 by Glenn (talk | contribs) (catchg Category:Electronic components)
A protected MOSFET contains integrated transient surge protection circuitry (a source-drain zener) and is less susceptible to electrostatic discharge and other transients, as compared to standard, unprotected MOSFETs.
A "intelligent switch" contains, in addition, an integrated temperature sensor, and automatically turns itself off if it gets too hot. [1] [2] [3]
Examples of MOSFETS (most are protected) in RepRap electronics are:
Electronics | MOSFET Part Number | Notes |
---|---|---|
RAMPS | STMicroelectronics STP55NF06L |
STripFETTM II Power MOSFET -- Integrated source-drain zener |
Pololu Electronics | STMicroelectronics VNP14NV04-E |
MOSFET OMNIFETII 40V 12A 0.02 ohm TO-220 -- Thermal, short, overvoltage, feedback, ESD |
R2C2 electronics | Unprotected MOSFETS | External protection provided on board with zeners |
Generation 7 Electronics | International Rectifier IRLB8743 |
30V 78A 0.0032 ohm, internal zeners, for heated bed (no heatsink with low freq PWM) (See Gen7_Research#MOSFET_Heat_and_MOSFET_Type |
International Rectifier IRFZ44N |
55V 49A 0.017 ohm, internal zeners, for extruder | |
Sanguinololu | Fairchild RFP30N06LE |
30A, 60V, ESD Rated, 0.047 Ohm, Logic Features
Level N-Channel Power MOSFETs -- 2KV esd, integrated source-drain zener, integrated gate-source zeners |
SevenSwitch | International Rectifier IRLB8743 |
30V 78A 0.0032 ohm, internal zeners |