ERZ-E07A331 Equivalent & Substitute Parts

Part Overview

The ERZ-E07A331 is a 330 V, 2.5 kA disc varistor manufactured by Panasonic Electronic Components in the ZNR® series. This through-hole component is designed for transient voltage suppression applications with a 9mm disc package form factor. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance parameters are maintained across voltage ratings, surge current capacity, and thermal operating ranges, while accommodating different package geometries and manufacturer specifications.

Substiute Parts

ERZ-E07A331

Panasonic Electronic ComponentsIn Stock: 1183ERZ-E07A331 Datasheet

Current PartRFQ

ERZ-V10D331

Panasonic Electronic ComponentsIn Stock: 2900ERZ-V10D331 Datasheet

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MOV-10D331K

Bourns Inc.In Stock: 3105MOV-10D331K Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ERZ-E07A331 are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Varistor Voltage (Typical): 330 V
• Varistor Voltage Range: 297 V (Min) to 363 V (Max)
• Number of Circuits: 1
• Mounting Type: Through Hole
• Maximum AC Volts: 210 V
• Maximum DC Volts: 270 V or greater
• Operating Temperature: -40°C minimum to 85°C maximum or extended range
• RoHS3 Compliance: Required
• REACH Status: Unaffected

Secondary Considerations:

• Current - Surge capacity of 2.5 kA or greater
• Energy rating of 43 J or greater
• Package form factor: Disc geometry (9mm, 10mm, or 11.5mm)

The identified substitutes maintain the core voltage suppression characteristics and thermal specifications while accommodating variations in surge current capacity and package dimensions.

Parameter Comparison

Engineering Selection Recommendations

ERZ-V10D331 (Panasonic Electronic Components): This substitute provides enhanced surge current capacity at 3.5 kA compared to the 2.5 kA rating of the main part, with increased energy handling at 58 J. The varistor voltage characteristics remain identical across the specified range. The larger 11.5mm disc package accommodates the higher energy rating. Both parts are Panasonic ZNR® series components with ROHS3 compliance and identical thermal operating limits. This substitute is suitable for applications requiring higher transient energy absorption while maintaining the same voltage suppression profile.

MOV-10D331K (Bourns Inc.): This substitute maintains the identical 2.5 kA surge current and 330 V varistor voltage specification as the main part. The 10mm disc package provides a geometric intermediate between the 9mm and 11.5mm options. The MOV-10D331K offers an extended maximum operating temperature of 105°C compared to 85°C for the main part, and a marginally higher maximum DC voltage rating of 275 V. Energy rating is 43 J, comparable to the main part at 44 J. ROHS3 compliance and Active product status are maintained. This substitute is suitable for applications requiring identical electrical performance with potential thermal margin extension.

Frequently Asked Questions (FAQ)

Q: Can ERZ-V10D331 be used as a direct replacement for ERZ-E07A331?

A: The ERZ-V10D331 maintains identical varistor voltage specifications (330 V typical) and thermal operating range (-40°C to 85°C). The primary differences are increased surge current capacity (3.5 kA vs. 2.5 kA), higher energy rating (58 J vs. 44 J), and larger package geometry (11.5mm disc vs. 9mm disc). Direct substitution is electrically valid; however, physical board layout must accommodate the larger package footprint.

Q: What are the key differences between MOV-10D331K and ERZ-E07A331?

A: Both parts share identical varistor voltage (330 V) and surge current (2.5 kA) specifications. MOV-10D331K is manufactured by Bourns Inc. rather than Panasonic, features a 10mm disc package instead of 9mm, and offers an extended operating temperature maximum of 105°C versus 85°C. Maximum DC voltage is 275 V compared to 270 V. Energy ratings are comparable (43 J vs. 44 J).

Q: Are all three parts ROHS3 compliant?

A: Yes. ERZ-E07A331, ERZ-V10D331, and MOV-10D331K are all ROHS3 compliant with REACH Unaffected status.

Q: Which substitute should be selected for high-temperature applications?

A: MOV-10D331K supports operating temperatures up to 105°C, compared to 85°C for both Panasonic parts. Selection depends on the specific thermal requirements of the application.

Q: Does package size affect electrical performance?

A: Package size (9mm, 10mm, or 11.5mm disc) does not alter the core varistor voltage or surge current specifications. Package geometry is determined by energy handling requirements and physical board constraints. The larger 11.5mm package of ERZ-V10D331 accommodates its higher 58 J energy rating.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed for all three parts based on varistor voltage, surge current, and thermal specifications. Physical interchangeability depends on printed circuit board layout and available space for the different disc diameters (9mm, 10mm, or 11.5mm).