ERZ-E05A331CS Equivalent & Substitute Parts

Part Overview

The ERZ-E05A331CS is a 330 V, 1.2 kA Transient Voltage Suppressor (TVS) varistor manufactured by Panasonic Electronic Components in the ZNR® series. This through-hole disc component (7mm) is designed for transient voltage protection in electronic circuits. The part is currently Active in product status with full RoHS3 compliance and REACH unaffected designation. Alternative equivalent parts may be required due to inventory availability, procurement lead times, or specific supply chain requirements.

Substiute Parts

ERZ-E05A331CS

Panasonic Electronic ComponentsIn Stock: 942ERZ-E05A331CS Datasheet

Current PartRFQ

ERZ-E05A331

Panasonic Electronic ComponentsIn Stock: 8958ERZ-E05A331 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ERZ-E05A331CS is determined by strict equivalence across the following critical parameters:

• Varistor Voltage range (Min/Typ/Max): 297 V / 330 V / 363 V
• Current - Surge capacity: 1.2 kA
• Maximum AC and DC voltage ratings: 210 V AC / 270 V DC
• Energy dissipation: 21 J
• Number of circuits: 1
• Mounting type: Through Hole
• Package form factor: Disc 7mm
• Operating temperature range: -40°C to 85°C
• Series designation: ZNR®

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. Deviations in any of these specifications disqualify a part from substitution consideration.

Parameter Comparison

Engineering Selection Recommendations

The ERZ-E05A331 is a direct parametric equivalent to the ERZ-E05A331CS. Both parts are manufactured by Panasonic Electronic Components within the ZNR® series and share identical electrical and mechanical specifications. Both parts maintain Active product status and carry full ROHS3 compliance with REACH unaffected designation. Selection between these parts may be based on packaging format (bulk vs. alternative packaging) or inventory availability. No functional or compliance differences exist between the two parts.

Frequently Asked Questions (FAQ)

Q: Can ERZ-E05A331 replace ERZ-E05A331CS in my circuit?

A: Yes. Both parts are parametric equivalents with identical varistor voltage (330 V typical), surge current (1.2 kA), energy dissipation (21 J), and all other electrical and mechanical specifications. They are interchangeable from a functional standpoint.

Q: What is the difference between ERZ-E05A331CS and ERZ-E05A331?

A: The primary difference is packaging designation. ERZ-E05A331CS specifies bulk packaging, while ERZ-E05A331 represents the base part number. All electrical parameters, thermal characteristics, and compliance certifications are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both ERZ-E05A331CS and ERZ-E05A331 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What mounting configuration do these parts require?

A: Both parts are through-hole mounted components in a disc 7mm package form factor, suitable for PCB assembly with standard through-hole soldering processes.

Q: What is the operating temperature range for these varistors?

A: Both parts operate across -40°C to 85°C ambient temperature range, suitable for industrial and commercial applications.

Q: Can these parts be used in AC or DC circuits?

A: Both parts are rated for AC and DC applications with maximum ratings of 210 V AC and 270 V DC respectively, with typical varistor voltage of 330 V.