V10E510 Equivalent & Substitute Parts

Part Overview

The V10E510 is a 820 V, 4.6 kA disc varistor manufactured by Littelfuse Inc. in the UltraMOV™ series. This component is classified as a Transient Voltage Suppressor (TVS) and is designed for through-hole mounting in a 10mm disc package. The V10E510 has reached obsolete product status, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

V10E510

Littelfuse Inc.In Stock: 863V10E510 Datasheet

Current PartRFQ

V10E510P

Littelfuse Inc.In Stock: 867V10E510P Datasheet

DirectRFQ

ERZ-V10D821

Panasonic Electronic ComponentsIn Stock: 11771ERZ-V10D821 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the V10E510 is determined by the following critical parameters:

• Varistor Voltage (Typ): 820 V ± tolerance range (738 V minimum to 902 V maximum)
• Current - Surge: 4.6 kA
• Maximum AC Volts: 510 V
• Maximum DC Volts: 670 V
• Number of Circuits: 1
• Mounting Type: Through Hole
• RoHS Status: ROHS3 Compliant

Substitute parts must match these electrical specifications within the defined tolerance bands. Physical package dimensions may vary within industry-standard disc varistor form factors (10mm to 12.50mm) provided mounting compatibility is maintained for through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

V10E510P is the primary direct substitute. It is manufactured by Littelfuse Inc. in the same UltraMOV™ series with identical electrical specifications and operating temperature range. The V10E510P maintains active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

ERZ-V10D821 is a cross-manufacturer substitute from Panasonic Electronic Components in the ZNR® series. It meets all critical electrical parameters (820 V typical varistor voltage, 4.6 kA surge current, 510 V AC maximum, 670 V DC maximum) and maintains ROHS3 compliance. The ERZ-V10D821 offers higher energy rating (110 J versus 92 J) and increased capacitance (140 pF @ 1 kHz). The package diameter is 12.50mm compared to 10mm for the original part; PCB layout verification is required to confirm mechanical fit. The operating temperature minimum is -40°C versus -55°C for the V10E510, which may be a constraint in extreme cold environments.

Frequently Asked Questions (FAQ)

Q: Can V10E510P be used as a direct replacement for V10E510?

A: Yes. V10E510P is electrically and mechanically identical to V10E510, with the same 10mm disc package, identical varistor voltage range (738 V to 902 V), surge current (4.6 kA), and operating temperature range (-55°C to 85°C). The primary difference is product status: V10E510P is active while V10E510 is obsolete.

Q: What are the differences between V10E510P and ERZ-V10D821?

A: Both parts meet the core electrical specifications (820 V typical, 4.6 kA surge, 510 V AC, 670 V DC). Key differences are: (1) Manufacturer: Littelfuse versus Panasonic; (2) Series: UltraMOV™ versus ZNR®; (3) Package diameter: 10mm versus 12.50mm; (4) Energy: 92 J versus 110 J; (5) Operating temperature minimum: -55°C versus -40°C; (6) Capacitance: 110 pF @ 1 MHz versus 140 pF @ 1 kHz.

Q: Is the larger 12.50mm package of ERZ-V10D821 compatible with V10E510 PCB layouts?

A: PCB layout verification is required. The 12.50mm disc package is larger than the 10mm package of the original part. Confirm that the PCB footprint and surrounding component clearances accommodate the larger diameter before design implementation.

Q: Does ERZ-V10D821 meet the same temperature range as V10E510?

A: No. ERZ-V10D821 operates from -40°C to 85°C, while V10E510 operates from -55°C to 85°C. If the application requires operation below -40°C, ERZ-V10D821 is not suitable. V10E510P maintains the full -55°C to 85°C range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. V10E510P and ERZ-V10D821 are both ROHS3 compliant, matching the regulatory status of the original V10E510.