Welcome to Weijie Semiconductor

Syfer

- Knowles Syfer (formerly Syfer Technology Limited) is a premier global manufacturer renowned for innovative application specific high-voltage, Hi-Q RF MLCCs and thru-hole/SMT EMI suppression filters. Our comprehensive product range includes; MLCCs include RF/Microwave/ultra-low ESR, high voltage to 12 k VDC, 250 VAC ratings, safety certified SMDs as well as space-grade parts. Our patented StackiCap™ is a unique capacitor assembly designed to achieve high capacitance and high voltage.

Syfer’s EMI filter lineup has SMD feed through capacitors rated to 3 A, SMD C and Pi filters rated to 20 A and X2Y® technology.

The broad Syfer AEC Q200 qualified family features both surface mount EMI filters and high-voltage MLCCs focused on the HEV and EV automotive market.

Worldwide manufacturing operations include a brand new facility in Suzhou, China, equipped with modern equipment to assure consistent, high quality products to meet the growing needs of our global markets.

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Part Number
Manufacturer
Description
Unit Price
In Stock

1808YA250331KXTSY2  1808YA250331KXTSY2

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : FlexiCap™
Part Status : Active
Capacitance : 330pF
Tolerance : ±10%
Voltage - Rated : 250V
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : Soft Termination
Ratings : X1, Y2
Applications : Safety, Boardflex Sensitive
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1808 (4520 Metric)
Size / Dimension : 0.177" L x 0.079" W (4.50mm x 2.00mm)
Height - Seated (Max) : -
Thickness (Max) : 0.079" (2.00mm)
Lead Spacing : -
Lead Style : -
0
2858 in stock

1812J0500474MXTE03  1812J0500474MXTE03

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 0.47µF
Tolerance : ±20%
Voltage - Rated : 50V
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : Low ESL (X2Y)
Ratings : -
Applications : Bypass, Decoupling
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.083" (2.10mm)
Lead Spacing : -
Lead Style : -
0
5000 in stock

1812J1K00103KXT  1812J1K00103KXT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 10000pF
Tolerance : ±10%
Voltage - Rated : 1000V (1kV)
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
5000 in stock

1812J1K00221KXT  1812J1K00221KXT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 220pF
Tolerance : ±10%
Voltage - Rated : 1000V (1kV)
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
2000 in stock

1812J2K00102KXT  1812J2K00102KXT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 1000pF
Tolerance : ±10%
Voltage - Rated : 2000V (2kV)
Temperature Coefficient : X7R (2R1)
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
1915 in stock

1812J2K00222KJT  1812J2K00222KJT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 2200pF
Tolerance : ±10%
Voltage - Rated : 2000V (2kV)
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
1988 in stock

1812J2K00222KXT  1812J2K00222KXT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 2200pF
Tolerance : ±10%
Voltage - Rated : 2000V (2kV)
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
1800 in stock

1812J2K00472KXT  1812J2K00472KXT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 4700pF
Tolerance : ±10%
Voltage - Rated : 2000V (2kV)
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
1381 in stock

1812J6300103JGT  1812J6300103JGT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 10000pF
Tolerance : ±5%
Voltage - Rated : 630V
Temperature Coefficient : C0G, NP0 (1B)
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.098" (2.50mm)
Lead Spacing : -
Lead Style : -
0
1880 in stock

1812J6300223JGT  1812J6300223JGT

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : -
Part Status : Active
Capacitance : 0.022µF
Tolerance : ±5%
Voltage - Rated : 630V
Temperature Coefficient : C0G, NP0 (1B)
Operating Temperature : -55°C ~ 125°C
Features : -
Ratings : -
Applications : General Purpose
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.126" (3.20mm)
Lead Spacing : -
Lead Style : -
0
1990 in stock

1812Y0500474METE03  1812Y0500474METE03

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : FlexiCap™
Part Status : Active
Capacitance : 0.47µF
Tolerance : ±20%
Voltage - Rated : 50V
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : Low ESL (X2Y), Soft Termination
Ratings : AEC-Q200
Applications : Automotive, Bypass, Decoupling, Boardflex Sensitive
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.030" (0.75mm)
Lead Spacing : -
Lead Style : -
0
2457 in stock

1812Y1000104METE03  1812Y1000104METE03

Knowles Syfer
Manufacturer : Knowles Syfer
Packaging : Cut Tape (CT)
Alternate Packaging
Series : FlexiCap™
Part Status : Active
Capacitance : 0.1µF
Tolerance : ±20%
Voltage - Rated : 100V
Temperature Coefficient : X7R
Operating Temperature : -55°C ~ 125°C
Features : Low ESL (X2Y), Soft Termination
Ratings : AEC-Q200
Applications : Automotive, Bypass, Decoupling, Boardflex Sensitive
Failure Rate : -
Mounting Type : Surface Mount, MLCC
Package / Case : 1812 (4532 Metric)
Size / Dimension : 0.177" L x 0.126" W (4.50mm x 3.20mm)
Height - Seated (Max) : -
Thickness (Max) : 0.030" (0.75mm)
Lead Spacing : -
Lead Style : -
0
2385 in stock