Images are for reference only, see product specifications for full details
The SKNa 46/18 avalanche diode is an anode to stud device suitable for DC power supplies, field coil supply for DC motors and series connections for high voltage applications.
- Avalanche type reverse characteristic up to 2000V
- Hermetic metal case with glass insulator
- Threaded stud ISO M8 or 1/4 – 28 UNF 2A2
- Cooling via heatsinks
- SKN: anode to stud and SKR: cathode to stud
Expert technical support
Design Inspiration, whenever you need it
Custom & flexible ordering
General purpose avalanche rectifier diodes featuring controlled avalanche reverse voltage characteristics.
- DC supply for magnets or solenoids (brakes, valves etc.)
- Field coil supply for DC motors
- Series connections for high voltage applications like dust precipitators
Refer to manufacturer’s datasheet for full technical information.
|Maximum Repetitive Reverse Voltage (VRRM)
Stud Screw Fit Diodes
|RMS Forward Current (IFRMS)
|Maximum Peak Surge Current (IFSM)
|Maximum Surge Reverse Power Dissipation (PRSM)
|Operating Junction Temperature (TJ)
-40 to +180°C
|Drain Current (ID)
40 / 57A
|Value for Fusing (I2t)
|Maximum Forward Voltage Drop (VF)
|Maximum Reverse Current, Drain Current (IR)
|Thermal Resistance Junction to Case (RthJC)
|Thermal Resistance Case to Heatsink (Rthc-s)
|Breakdown Voltage V(BR) Min
Semikron Danfoss is a leading manufacturer of semiconductor components, including power modules and systems. Based in Germany, Semikron Danfoss specialises in discrete semiconductors, transistors, diodes, thyristors, IGBTs, MOSFETs and thyristor diode modules. Semikron’s state-of-the-art semiconductor range enables customers to develop smaller, more energy efficient power electronic systems, reducing global energy demand.
Typical applications include power supplies, renewable energies (wind and solar power) and electric vehicles (private cars, vans, buses, lorries, forklift trucks, and more).
Semikron Danfoss is a leading global semiconductor manufacturer and focuses on new markets such as renewable energy and hybrid vehicles as well as industrial applications such as electric drives, welding machines, lifts, power supplies, pumps, conveyor belts, trains and trams.
Learn more about Semikron Danfoss products by getting in touch with GD Rectifiers.
SEMIKRON SKNa 46-18 Datasheet.pdf
Semikron Product Catalogue 2021/2022
Semikron Product Catalogue 2019
Semikron Semiconductors Application Manual
Semikron Discrete Semiconductors Flyer
Semikron Power Electronics for Vehicles Flyer
Semikron Wind Operation & Maintenance Flyer
Our specialist products, components and designs can be found in a wide range of applications around the world. We also partner with customers to design custom components and devices to suit their requirements.
Get the Latest News from GD Rectifiers
Request a Call Back
Fill in your details below and a member of our team will call you soon.
Send us your enquiry and a member of our sales team will contact you shortly.
Receive a Quote
Complete the below form to receive a detailed quotation from our sales team. Need to discuss your requirements in more detail? Call our team on 01444 243 452.