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Over Voltage Circuit Protection
- When a circuit must be protected from overvoltage and there are failure modes in the power supply that can produce such overvoltages, the circuit may be protected by a device commonly called a crowbar circuit. When this device detects an overvoltage it causes a short circuit between the power supply and its return. This will cause both an immediate drop in voltage (protecting the device) and an instantaneous high current which is expected to open a current sensitive device (such as a fuse or circuit breaker). This device is called a crowbar as it is likened to dropping an actual crowbar across a set of bus bars (exposed electrical conductors).
Category Part Number
ROV20-821K-2
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 820VDC 20MM 10% LEADED
ROV20H471K-S-78
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 470VDC 20MM STRGT LEAD
ROV10-431K-S-78
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 430VDC 10MM STRGT LEAD
AGRF900-AP
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
POLYSWITCH PTC RESET 9A HLD AMMO
ROV10-471K-56-2
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 470VDC 10MM 10% LEADED
AGRF600-AP
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
POLYSWITCH PTC RESET 6A HLD AMMO
TVB058SC-L
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
SURGE PROTECTOR 58V DO-214AA
AGRF500S
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
POLYSWITCH PTC RESET 5A HOLD
ROV20-431K-S-0.125
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 430VDC 20MM STRGT LEAD
AGRF700-AP
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
POLYSWITCH PTC RESET 7A HLD AMMO
ROV10-471K-S-56-2
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 470VDC 10MM STRGT LEAD
AGRF400-AP
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
POLYSWITCH PTC RESET 4A HLD AMMO
ROV20H201K-S-78
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 200VDC 20MM STRGT LEAD
ROV14E201K-10
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 200VDC 14MM LEADED
ROV20-820K-S-2
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 82VDC 20MM STRGT LEAD
ROV20H820K
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 82VDC 20MM 10% LEADED
1SMF16BT3G
Vendor: ON Semiconductor
Category: Over Voltage Circuit Protection
TVS ZENER 175W 16V SOD123FL
SMF20AT1G
Vendor: ON Semiconductor
Category: Over Voltage Circuit Protection
TVS ZENER 200W 20V SOD123FL
ROV20H820K-2
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 82VDC 20MM 10% LEADED
ROV20-180M-S
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 18VDC 20MM LEADED
ROV07-270K-S-0.120
Vendor: Raychem/Tyco Electronics
Category: Over Voltage Circuit Protection
VARISTOR 27VDC 7MM STRGT LEAD
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