Produktportfolio / Knowles, Brand SYFER / Panel mount EMI Filters

Knowles, Brand SYFER

High Voltage panel mount EMI filters - SFJN & SFJE ranges

Syfer Technology offers a range of feedthrough EMI filters for high voltage applications. With operation from -55 degrees C to 125 degrees C, these filters boast a working voltage up to 3kVdc.

What's more, 18 capacitance values are offered, from 100pF to ......

Knowles, Brand SYFER

Multiway Filter Assemblies

Multiway assemblies can be offered using any of the filters in the Syfer range, either solder-in or screw-in. Our planar capacitor arrays can also be utilised, which allows closer pin pitching. Specially manufactured chassis or plates can be provided, or ......

Knowles, Brand SYFER

SFAA range of threaded panel mount EMI Filters

• C0G/NP0 dielectric
• 4-40 UNC thread with a 4.0mm (0.157") hexagonal head
• 10pF to 150nF
• 'C' configuration

Knowles, Brand SYFER

SFAB range of threaded panel mount EMI Filters

• C0G/NP0 dielectric
• available with or without nuts and washers
• 6-32 UNC thread with a 4.0mm (0.157
• 50Vdc to 500Vdc
• 10pF to 150nF
• 'C' and L-C configurations

Knowles, Brand SYFER

SFAJ range of threaded panel mount EMI Filters

• M3 thread with a 4.0mm (0.157") hexagonal head
• available with or without nuts and washers
• 10pF to 150nF
• 'C' and L-C configurations

Knowles, Brand SYFER

SFAK range of threaded panel mount EMI Filters

• M3.5 thread with a 4.0mm (0.157
• C0G/NP0 dielectric
• available with or without nuts and washers
• 50Vdc to 500Vdc
• 10pF to 47nF
• 'T' configurations
• 'C' and L-C configurations

Knowles, Brand SYFER

SFBC range of threaded panel mount EMI Filters

• C0G/NP0 dielectric
• available with or without nuts and washers
• 8-32 UNC thread with a 4.75mm (0.187
• 50Vdc to 500Vdc
• 10pF to 150nF
• 'C', L-C and pi-section configurations

Knowles, Brand SYFER

SFBD range of threaded panel mount EMI Filters

• C0G/NP0 dielectric
• available with or without nuts and washers
• 50Vdc to 500Vdc
• 12-32 UNEF thread with a 4.75mm (0.187")
• 10pF to 300nF
• 'C', L-C, 'T' and pi-section configurations

Knowles, Brand SYFER

SFBL range of threaded panel mount EMI Filters

• M4 thread with a 4.75mm (0.187") hexagonal head
• C0G/NP0 dielectric
• available with or without nuts and washers
• 50Vdc to 500Vdc
• 10pF to 150nF
• 'C', L-C and pi-section configurations

Knowles, Brand SYFER

SFBM range of threaded panel mount EMI filters

• M5 thread with a 4.75mm (0.187") hexagonal head
• feedthrough
• C0G/NP0 dielectric
• available with or without nuts and washers
• 10pF to 300nF
• 'C', L-C, 'T' and pi-section configurations

Knowles, Brand SYFER

SFCD range of threaded panel mount EMI Filters

• C0G/NP0 dielectric
• available with or without nuts and washers
• 50Vdc to 500Vdc
• 12-32 UNEF thread with a 6.35mm (0.250")
• 10pF to 680nF
• 'C', L-C and pi-section configurations

Knowles, Brand SYFER

SFCI range of threaded panel mount EMI Filters

• available with or without nuts and washers
• 50Vdc to 500Vdc
• 2BA thread with a 6.35mm (0.250") hexagonal head
• 10pF to 680nF
• 'C' and L-C configurations

Knowles, Brand SYFER

SFCMV range of threaded panel mount EMI / Varistor Filters

• Varistor Filter
• metal oxide based ceramic (MOV)
• lowpass EMI filtering up to at least 1GHz

Knowles, Brand SYFER

SFJE range of threaded panel mount EMI Filters

• supplied as standard with nuts and washers
• C0G/NP0 dielectric
• 50Vdc to 3000Vdc
• 50V to 500V version capacitance range from 10nF to 2.2µF
• 1kV to 3kV capacitance value from 100pF to 68nF
• 1/4-28 UNF thread and a 9.80mm (0.386")
• 'C' and L-C configurations

Knowles, Brand SYFER

SFJG range of threaded panel mount EMI Filters

• X7R dielectric
• supplied as standard with nuts and washers
• C0G/NP0 dielectric
• 100pF to 6.6µF
• 1/4-28 UNF thread

Knowles, Brand SYFER

SFJN range of threaded panel mount EMI Filters

• supplied as standard with nuts and washers
• M6 thread and a 9.80mm (0.386") round head
• C0G/NP0 dielectric
• 50Vdc to 3000Vdc
• 50V to 500V version capacitance range from 10nF to 2.2µF
• 1kV to 3kV capacitance value from 100pF to 68nF
• 'C' and L-C configurations

Knowles, Brand SYFER

SFKB range of threaded panel mount EMI Filters

• threaded
• C0G/NP0 dielectric
• 6-32 UNC thread with a 4.4mm (0.173
• 50Vdc to 500Vdc
• 10pF to 47nF
• 'C' and L-C configurations

Knowles, Brand SYFER

SFKK range of threaded panel mount EMI Filters

• M3.5 thread with a 4.4mm (0.173") round body
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 10pF to 47nF
• 'T' configurations
• 'C' and L-C configurations

Knowles, Brand SYFER

SFLM range of threaded panel mount EMI Filters

• M5 thread with a 6.0mm (0.236") round body to provide a miniature screw-in filter suitable for very close pitching
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 10pF to 300nF
• 'C', L-C, 'T' and pi-section configurations

Knowles, Brand SYFER

SFNO range of threaded panel mount EMI Filters

• tiny M2.5 thread with a 3.5mm (0.138")
• screw-in filter
• C0G/NP0 dielectric
• 50Vdc or 100Vdc
• 10pF to 47nF
• 'C' configuration

Knowles, Brand SYFER

SFSR Range of solder-in panel mount EMI Filters

• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 2.8mm body diameter
• 10pF to 10nF

Knowles, Brand SYFER

SFSS Range of solder-in panel mount EMI Filters

• Discoidal Capacitors with Leads
• available in 5 different diameters from 2.8mm
• 50V to 3kV
• 10pF to 2.2µF

Knowles, Brand SYFER

SFST Range of solder-in panel mount EMI Filters

• feedthrough
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 3.25mm body diameter, epoxy sealed
• 10pF to 33nF

Knowles, Brand SYFER

SFSU Range of Solder-in panel mount EMI Filters

• metal body and epoxy encapsulation
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 5.6mm body diameter, epoxy sealed
• 10pF to 470nF

Knowles, Brand SYFER

SFTM range of threaded panel mount EMI Filters

• overall body length of only 5.6mm
• M5 thread with a 6.35mm (0.250") hexagonal head
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 10pF to 150nF
• 'C' configuration

Knowles, Brand SYFER

SFUM range of threaded panel mount EMI Filters

• overall body length of only 5.6mm
• M5 thread with a 6.0mm (0.236") round head to provide a miniature screw-in filter suitable for very close pitching
• C0G/NP0 dielectric
• 50Vdc to 500Vdc
• 10pF to 150nF
• 'C' configuration

Knowles, Brand SYFER

Special Filters & Assemblies

The Syfer range of EMI filters is extensive, covering threaded and solder-in panel mounting versions, and including X2Y filters and varistor filters. Syfer's design and manufacturing capabilities are well suited to providing special products.

We are always ......

Knowles, Brand SYFER

X2Y Panel Mount Feedthroughs (SFJEB Range)

• balanced line filter
• 2-pin panel mounting device
• 'C' configuration