Panasonic E-S1 Surge Absorber 220 V, 1.2 pF, 100 A, Clamping 1815 V Varistor ERZE14A221S1

The Panasonic ERZE14A221S1 E-S1 Surge Absorber is a compact and robust varistor crafted to safeguard sensitive electronic equipment from transient voltages and surges. With a varistor voltage rating of 220 V, it efficiently suppresses abnormal overvoltages that occur in consumer, industrial, and commercial systems, contributing to improved device operational reliability and longevity.

This device boasts a clamping voltage of 1815 V and a clamping current of 100 A, providing strong transient absorption under severe surge conditions. Its peak surge current of 7.5 kA further underscores its suitability for surge-prone environments. Engineered for rugged performance, the ERZE14A221S1 maintains stability across wide temperature extremes ranging from -40°C to 125°C, making it suitable for harsh industrial contexts and appliances operating at elevated temperatures.

The E-S1 series supports a maximum AC voltage of 680 V and a maximum DC voltage of 170 V, further extending its versatility across different power line protection scenarios. Its energy rating of 620 J and capacitance of 1.2 pF allow it to handle high-energy transients without degradation. The device features a 16.5 mm diameter, 24 mm length, and 5.3 mm thickness, ensuring a compact footprint for dense assemblies. Its straight lead termination and 2-pin configuration facilitate secure, reliable board mounting during production.

Compliance with international standards, including VDE IEC61051-1 and UL1449, further enhances its appeal for global OEMs and contract manufacturers. The varistor is delivered in bulk packaging and is specifically tailored for automated line assembly and mass production settings. Lead pitch is 10 mm, ensuring compatibility with standard PCB layouts.

Typical application areas include transient and surge protection for consumer electronics, power supply circuits, control and measurement electronics, communication devices, and industrial or household electrical appliances. The device’s high surge capacity ensures uninterrupted operation and protection of downstream semiconductors, such as diodes, transistors, ICs, and thyristors, from voltage spikes and noise interference.

The ERZE14A221S1 surge absorber is manufactured in Indonesia, aligning with stringent quality and reliability standards. It is a dependable choice for design engineers and system integrators requiring precise, compact, and high-survivability surge suppression in modern electronic systems.

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