V250LC40BP Equivalent & Substitute Parts

Part Overview

The V250LC40BP is a Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc., classified as a disc-type voltage protection component. This through-hole mounted device is designed for transient overvoltage protection in electronic circuits. The part is currently in active production status with 960 units available in inventory. Equivalent substitute parts are necessary when the primary part number becomes unavailable or when design flexibility is required across manufacturing batches while maintaining identical electrical and mechanical performance.

Substiute Parts

V250LC40BP

Littelfuse Inc.In Stock: 1059V250LC40BP Datasheet

Current PartRFQ

V250LA40BP

Littelfuse Inc.In Stock: 3607V250LA40BP Datasheet

Parametric EquivalentRFQ

V250LA40BPX2855

Littelfuse Inc.In Stock: 5293V250LA40BPX2855 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V250LC40BP are determined by strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

Critical Parameters for Substitution:

• Maximum AC Volts: 250 V
• Maximum DC Volts: 330 V
• Varistor Voltage (Typical): 384.6 V
• Current - Surge: 6.5 kA
• Energy: 130 J
• Mounting Type: Through Hole
• Package / Case: Disc 20mm
• Operating Temperature Range: -55°C to 85°C
• Number of Circuits: 1
• Capacitance @ Frequency: 1000 pF @ 1 MHz

All substitute parts listed maintain identical values across these parameters. Series designation (LC vs. LA) represents internal manufacturing variants within Littelfuse's product line that do not affect functional performance in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—V250LC40BP, V250LA40BP, and V250LA40BPX2855—are functionally equivalent for circuit design purposes. Selection between these parts should be based on the following factors:

Compliance & Certification: All parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL rating of 1 (Unlimited). No compliance-based differentiation exists.

Product Status: All parts are in active production status, ensuring long-term availability and supply chain stability.

Inventory Availability: V250LA40BPX2855 offers the highest inventory level at 5225 units, followed by V250LA40BP at 3515 units, and V250LC40BP at 960 units. For applications requiring immediate or bulk procurement, higher inventory availability may influence selection.

Series Designation: The LC and LA series designations represent internal manufacturing variants within Littelfuse's product architecture. Both series maintain identical electrical performance and mechanical specifications for this voltage and current rating.

Frequently Asked Questions (FAQ)

Q: Can V250LA40BP and V250LA40BPX2855 be used interchangeably with V250LC40BP?

A: Yes. All three part numbers are parametric equivalents with identical electrical ratings, surge current capacity, energy dissipation, operating temperature range, and physical package dimensions. They are direct substitutes for circuit applications.

Q: What is the difference between the LC and LA series?

A: The LC and LA series are internal manufacturing variants within Littelfuse's varistor product line. Both series meet identical electrical and mechanical specifications for the 250 V AC / 330 V DC rating class. Series designation does not affect functional performance in circuit design.

Q: Are there any compatibility concerns when switching between these part numbers?

A: No compatibility concerns exist. All parts use identical through-hole mounting, 20mm disc package dimensions, and electrical characteristics. PCB layouts and circuit designs require no modification when substituting between these part numbers.

Q: What determines whether a part can substitute for V250LC40BP?

A: Substitution eligibility is determined by matching all critical parameters: maximum AC/DC voltage ratings, varistor voltage range, surge current capacity, energy rating, operating temperature range, mounting type, and package dimensions. All listed substitute parts meet these criteria.

Q: Which part should be selected for new designs?

A: For new designs, any of the three part numbers is acceptable from an engineering standpoint. Selection may be influenced by inventory availability, supply chain lead times, or internal component standardization policies.

Q: Are all parts ROHS3 compliant?

A: Yes. V250LC40BP, V250LA40BP, and V250LA40BPX2855 are all ROHS3 compliant with MSL rating of 1 (Unlimited moisture sensitivity level).