TDK Epcos B722 Metal Oxide Varistor 420V ac 175J
TDK Epcos B722 metal oxide varistor, 420V ac, 175J. Protects against transient voltages. UL94V-0 rated, 8kA surge current.
The TDK Epcos B722 StandarD series comprises round shaped, radial leaded SIOV metal oxide varistors designed for robust circuit protection and control. These varistors feature a wide operating voltage range from 11VRMS to 1100VRMS, making them highly versatile for various electrical applications.
Functioning as control or compensation elements, they provide optimal operating conditions or protect circuits against excessive transient voltages. Their voltage dependent characteristics enable reliable protection against high transient voltage spikes, supported by high surge current ratings up to 8kA and a peak energy rating of 175J.
Safety and durability are paramount in their design. They are UL94V-0 rated for flame retardancy and feature an epoxy resin coating for enhanced protection. The varistors are approved by UL, CSA, VDE, CQC, and IEC standards, ensuring compliance and reliability in demanding environments. They offer an endurance of 1000 hours at 85°C, with a varistor voltage tolerance of ±10% and ±5%.
Key Specifications
- Voltage Rating: 420V ac / 560V dc
- Clamping Voltage (Vc Max): 1.12kV
- Case Style: Disc 20mm
- Peak Surge Current (@ 8/20µs): 8kA
- Operating Temperature Range: -40°C to 85°C
- Dimensions: 43 mm x 33 mm x 15 mm
- Weight: 8 grams
- Industrial applications
- Safety applications
- Circuit control
- Circuit compensation
- Series: Epcos B722 StandarD
- Varistor Type: Metal Oxide Varistor (MOV)
- Voltage Rating VAC: 420V
- Voltage Rating VDC: 560V
- Clamping Voltage Vc Max: 1.12kV
- Peak Energy (10/1000µs): 175J
- Peak Surge Current (@ 8/20µs): 8kA
- Varistor Case Style: Disc 20mm
- Varistor Voltage Tolerance: ±10% and ±5%
- Operating Temperature Range: -40°C to 85°C
- Endurance: 1000h at 85°C
- Flame Retardant Rating: UL94V-0
- Coating: Epoxy resin
- Approvals: UL, CSA, VDE, CQC, IEC
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- Weight: 8 grams
- Product Range: StandarD
- Operating Temperature Min: -40°C
- Operating Temperature Max: 85°C
- Peak Energy (10/1000uS): 175J
- SVHC: No SVHC (25-Jun-2025)
Documents
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