Product Overview
Philips ECG 2V020 MOV Varistor - 20VAC 26VDC 6 Joules 1000A Peak Radial Disc
Condition
Unused NOS. Dark green radial-leaded disc body, markings legible: ECG / 2V020 / 8836. Label confirms 20VAC RMS, 26VDC, 6 joules, 1000 amps peak, Japan origin. Sourced from an electronics distributor consolidating inventory. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
Philips ECG 2V020 - radial-leaded disc metal oxide varistor (MOV) rated 20VAC RMS / 26VDC continuous, 6 joules energy absorption, 1000 amps peak current. A voltage-dependent resistor that sits in parallel across a power line or circuit node and clamps transient overvoltages before they reach sensitive components. Under normal operating voltage it presents very high resistance; when a voltage spike arrives, resistance drops rapidly and excess current is diverted away from the protected circuit.
Key Features
- Type: Metal oxide varistor (MOV), radial-leaded disc
- Maximum continuous AC voltage: 20VAC RMS
- Maximum continuous DC voltage: 26VDC
- Energy rating: 6 joules
- Peak current rating: 1000 amps
- Markings: ECG / 2V020 / 8836 molded on face
- Country of origin: Japan
- Brand: Philips ECG
Applications
- Repair technician desolders a failed varistor from a consumer electronics power supply and drops the 2V020 in parallel to restore surge protection before returning the unit to service
- Industrial maintenance tech replaces a degraded MOV in a motor drive control panel after a power surge event, getting the panel back online the same shift
- OEM engineer integrates the 2V020 across AC input lines in a new power supply design to meet surge immunity requirements
- Hobbyist building a DIY bench power supply or battery charger adds a disc varistor across the AC input as a first line of overvoltage defense
- Maker protecting an Arduino or Raspberry Pi power circuit from household line transients with a low-cost parallel clamp on the supply rail
Frequently Asked Questions
How is this varistor connected in a circuit?
In parallel across the power lines or directly across the component or circuit node being protected. When voltage stays within the normal range, the varistor is essentially invisible to the circuit - very high resistance, near-zero current draw. When a spike arrives, resistance drops and the varistor clamps the voltage by shunting the excess current.
What is the difference between the 20VAC and 26VDC ratings?
Both describe the maximum continuous operating voltage - 20VAC RMS for AC circuits, 26VDC for DC circuits. Match the rating to your supply voltage. Using a varistor with a rating too close to your normal supply voltage can cause it to degrade prematurely from repeated low-level activation.
Is a clamping voltage (varistor voltage) specified?
The label and visible markings confirm 20VAC RMS, 26VDC, 6 joules, and 1000 amps peak. A specific clamping voltage for this unit is not confirmed in the available data. Buyers should verify the clamping voltage for their application before ordering.
What is included in the sale?
The varistor as shown. No additional accessories or documentation included.
Made in Japan, this little green disc is ready to take the hit so your circuit doesn't have to. Put it where it belongs and move on to the build.
