V14E550P Equivalent & Substitute Parts

Part Overview

The V14E550P is a 910 V, 6 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in the UltraMOV™ series. This through-hole disc varistor (14mm) is designed for transient voltage protection in electronic circuits operating at 550 V AC maximum. The part is currently Active in product status with 1334 units in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives meeting the same electrical and mechanical specifications.

Substiute Parts

V14E550P

Littelfuse Inc.In Stock: 1376V14E550P Datasheet

Current PartRFQ

ERZ-V14D911

Panasonic Electronic ComponentsIn Stock: 1867ERZ-V14D911 Datasheet

MFR RecommendedRFQ

MOVHE14V550Y

Eaton - Electronics DivisionIn Stock: 1539MOVHE14V550Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V14E550P are qualified based on the following critical parameters that determine functional equivalence:

• Varistor Voltage Range: Minimum 819 V, Typical 910 V, Maximum 1.001 kV
• Maximum AC/DC Voltage Ratings: 550 V AC and 745 V DC
• Mounting Configuration: Through Hole
• Number of Circuits: Single circuit (1)
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

Two substitute parts meet these core electrical and mechanical requirements:

1. ERZ-V14D911 (Panasonic Electronic Components, ZNR® series) – Matches voltage specifications and through-hole mounting; differs in surge current capacity (5 kA vs. 6 kA) and package diameter (16mm vs. 14mm).

2. MOVHE14V550Y (Eaton - Electronics Division, MOVHE series) – Matches voltage specifications, surge current capacity (6 kA), and 14mm package diameter; differs in operating temperature range (-40°C ~ 125°C vs. -55°C ~ 85°C).

Parameter Comparison

Engineering Selection Recommendations

MOVHE14V550Y is the primary substitute for V14E550P. Both parts share identical surge current capacity (6 kA), varistor voltage specifications (910 V typical), and package diameter (14mm disc). Both are ROHS3 Compliant and REACH Unaffected. The MOVHE14V550Y offers an extended operating temperature range (-40°C ~ 125°C) compared to the V14E550P (-55°C ~ 85°C), providing greater thermal margin in applications with elevated ambient temperatures. Energy rating is higher (255 J vs. 190 J), indicating enhanced transient suppression capability.

ERZ-V14D911 is a secondary substitute when package diameter tolerance permits. This Panasonic ZNR® varistor maintains identical voltage specifications and through-hole mounting but operates at reduced surge current capacity (5 kA vs. 6 kA) and larger package diameter (16mm vs. 14mm). The ERZ-V14D911 is suitable for applications where surge current demands do not exceed 5 kA and PCB layout accommodates the larger disc diameter. Higher energy rating (255 J) supports robust transient suppression.

All three parts are Active products with current manufacturing status and adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: Can ERZ-V14D911 replace V14E550P in all applications?

A: ERZ-V14D911 is functionally equivalent for voltage protection but has two limiting factors: reduced surge current capacity (5 kA vs. 6 kA) and larger package diameter (16mm vs. 14mm). Substitution is valid only when circuit surge current does not exceed 5 kA and PCB layout accommodates the 16mm disc footprint.

Q: What is the primary difference between MOVHE14V550Y and V14E550P?

A: Both parts are electrically and mechanically equivalent with identical surge current (6 kA), varistor voltage (910 V), and package size (14mm disc). The MOVHE14V550Y operates across a wider temperature range (-40°C ~ 125°C vs. -55°C ~ 85°C) and has higher energy rating (255 J vs. 190 J).

Q: Are all three parts ROHS3 compliant?

A: Yes. V14E550P, ERZ-V14D911, and MOVHE14V550Y are all ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: Does package diameter affect electrical performance?

A: Package diameter (14mm vs. 16mm) does not affect electrical performance but impacts PCB layout and mechanical fit. Verify available board space before selecting ERZ-V14D911 with its 16mm disc.

Q: Which substitute offers the best thermal performance?

A: MOVHE14V550Y operates to 125°C maximum, compared to 85°C for V14E550P and 85°C for ERZ-V14D911. Select MOVHE14V550Y for applications requiring extended high-temperature operation.

Q: Can I use these parts interchangeably in existing designs?

A: MOVHE14V550Y is a direct mechanical and electrical substitute for V14E550P. ERZ-V14D911 requires verification of surge current requirements and PCB layout compatibility due to its 16mm package diameter and 5 kA surge rating.