Circuit Protection

Electronic component circuit protection uses specific devices and strategies to shield circuits from damage like overcurrent, overvoltage, short circuits, and electrostatic discharge (ESD), ensuring safety, reliability, and longevity by quickly interrupting or diverting harmful electrical energy before it damages sensitive components. These protectors act as a defense system, using components like fuses, varistors, TVS diodes, and PTC thermistors to maintain optimal operating conditions. 

Key Threats Protected Against:

• Overcurrent/Overload: Too much current flows (e.g., motor failure), damaging components.
• Overvoltage: Voltage spikes (e.g., lightning, load dumps) exceed safe levels.
• Electrostatic Discharge (ESD): Rapid discharge of static electricity.
• Overtemperature: Excessive heat buildup. 

Common Protection Devices:

• Fuses & PTC Thermistors: Blow or increase resistance to stop current flow during overcurrent events.
• Varistors & TVS Diodes (Transient Voltage Suppressors): Clamp or divert excess voltage during surges.
• Gas Discharge Tubes (GDTs): Divert high-energy transients, often used for lightning protection.
• Circuit Breakers (Electronic): Offer precise tripping and faster response than mechanical breakers. 

JVR Series (up to 85°C)

STANDARD SURGE N-SERIES

HIGH SURGE S-SERIES

ULTRA SURGE U-SERIES

JVT Series Up to 125°C

Standard Surge N-Series

JVT 5mm N Series : Standard Surge

JVT 7mm N Series : Standard Surge

JVT 10mm N Series : Standard Surge

JVT 14mm N Series : Standard Surge

JVT 20mm N Series : Standard Surge

JVT 25mm N Series : Standard Surge

High Surge S-Series

JVT 5mm S Series : High Surge

JVT 7mm S Series : High Surge

JVT 10mm S Series : High Surge

JVT 14mm S Series : High Surge

JVT 20mm S Series : High Surge

Ultra Surge U-Series

JVT 7mm U Series : Ultra Surge

JVT 10mm U Series : Ultra Surge

JVT 14mm U Series : Ultra Surge

JVT 20mm U Series : Ultra Surge

Multilayer Varistors (MLVs)

JMV – S Series : Surge Protection 125℃

JMV – E Series : ESD Protection 85℃

JMV – C Series : ESD Protection 125℃

JES Series : ESD Protection (Low Capacitance)

FUZETEC PPTC

FCMOV Advanced 14 Series

FCMOV Advanced 20 Series

Transient Voltage Suppressors (TVS)

1.5KE___, 1.5KE___A, 1.5KE___C, 1.5KE___CA Series

1.5KE7.5 through 1.5KE600

1.5KE7.5A through 1.5KE600A

1.5KE7.5C through 1.5KE600C

1.5KE7.5CA through 1.5KE600CA

1.5SMC6.8 through 1.5SMC440, A, C, CA Series

1.5SMC6.8 through 1.5SMC440

1.5SMC6.8A through 1.5SMC440A

1.5SMC6.8C through 1.5SMC440C

1.5SMC6.8CA through 1.5SMC440CA

5.0SMDJ___A, 5.0SMDJ___CA Series

5.0SMDJ11A through 5.0SMDJ440A

5.0SMDJ11CA through 5.0SMDJ440CA

P4KE__, P4KE___A, P4KE___C, P4KE___CA Series

P4KE6.8 through P4KE500

P4KE6.8A through P4KE500A

P4KE6.8C through P4KE540C

P4KE6.8CA through P4KE500CA

P6KE___A, P6KE___C, P6KE___CA Series

P6KE6.8 through P6KE600

P6KE6.8A through P6KE600A

P6KE6.8C through P6KE600C

P6KE6.8CA through P6KE600CA

P6SMB___, P6SMB___A, P6SMB___CA Series

P6SMB7.5A through P6SMB600A

P6SMB7.5CA through P6SMB600CA

SA___, SA___A, SA___C, SA___CA Series

SA5.0 through SA190

SA5.0A through SA190A

SA5.0C through SA190C

SA5.0CA through SA190CA

SMAJ___, SMAJ___A, SMAJ___C, SMAJ___CA Series

SMAJ5.0 through SMAJ400

SMAJ5.0A through SMAJ400A

SMAJ5.0C through SMAJ400C

SMAJ5.0CA through SMAJ400CA

SMBJ___, SMBJ___A, SMBJ___C, SMBJ___CA Series

SMBJ5.0 through SMBJ400

SMBJ5.0A through SMBJ400A

SMBJ5.0C through SMBJ400C

SMBJ5.0CA through SMBJ400CA

SMCJ___, SMCJ___A, SMCJ___C, SMCJ___CA Series

SMCJ2.0 through SMCJ400

SMCJ2.0A through SMCJ400A

SMCJ2.0C through SMCJ400C

SMCJ2.0CA through SMCJ400CA

SMDJ___, SMDJ___A, SMDJ___C, SMDJ___CA Series

SMDJ6.0A through SMDJ550A

SMDJ6.0CA through SMDJ550CA

SMF___A, SMF___CA Series

SMF5.0A through SMF400A

SMF5.0CA through SMF400CA

SM4F___A, SM4F___CA Series

SM4F10A through SM4F100A

SM4F10CA through SM4F100CA

Thermistors