Littelfuse V14P550 Equivalent & Substitute Parts

Part Overview

The Littelfuse V14P550 is a 910 V, 6 kA Transient Voltage Suppressor (TVS) varistor in the UltraMOV™ series, designed for single-circuit transient protection applications. This through-hole disc component (14mm) operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently active in production with 1125 units in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across different packaging configurations or equivalent product lines within the same manufacturer specifications.

Substiute Parts

V14P550

Littelfuse Inc.In Stock: 1220V14P550 Datasheet

Current PartRFQ

V14E550P

Littelfuse Inc.In Stock: 1376V14E550P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V14P550 is based on strict equivalence of the following critical parameters:

• Varistor voltage rating (910 V typical, 819 V minimum, 1.001 kV maximum)
• Surge current capacity (6 kA)
• Energy absorption (190 J)
• Mounting configuration (through-hole)
• Physical package (disc 14mm)
• Operating temperature range (-55°C to 85°C)
• Number of circuits (1)

The V14E550P is identified as a parametric equivalent. Both parts share identical electrical specifications and mechanical form factors. The primary distinction is packaging configuration: V14P550 is supplied in standard packaging, while V14E550P is supplied in bulk packaging. Both maintain the same UltraMOV™ series designation and active product status.

Parameter Comparison

Engineering Selection Recommendations

Both V14P550 and V14E550P are active products from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and inventory availability rather than functional performance.

V14P550 is suitable for standard component procurement workflows with 1125 units currently in stock. V14E550P, available in bulk packaging with 1334 units in stock, is appropriate for high-volume manufacturing environments or applications requiring bulk component handling.

Both parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity), ensuring compatibility with standard assembly and storage protocols. The electrical performance, thermal characteristics, and surge protection capabilities are identical across both part numbers.

Frequently Asked Questions (FAQ)

Q: Can V14E550P be used as a direct replacement for V14P550?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (910 V typical varistor voltage, 6 kA surge current, 190 J energy), mechanical form factor (disc 14mm through-hole), and operating specifications. The difference is packaging configuration only.

Q: What is the difference between V14P550 and V14E550P?

A: The primary difference is packaging. V14P550 uses standard packaging, while V14E550P uses bulk packaging. All electrical and mechanical parameters are identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both V14P550 and V14E550P are ROHS3 compliant with MSL Level 1 (unlimited moisture sensitivity).

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

A: Both parts operate across -55°C to 85°C (TA).

Q: Can these varistors be used in AC or DC applications?

A: Both parts are rated for maximum AC voltage of 550 V and maximum DC voltage of 745 V, supporting both AC and DC circuit protection applications within these voltage limits.

Q: What is the surge current capacity?

A: Both V14P550 and V14E550P are rated for 6 kA surge current with 190 J energy absorption capability.