V250LS10P Equivalent & Substitute Parts

Part Overview

The V250LS10P is a 390 V, 2.5 kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This disc-type varistor (10mm) operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 1235 units available in inventory. Substitute parts are identified when electrical specifications, mechanical form factors, and compliance certifications remain equivalent, enabling direct replacement in circuit designs without performance degradation.

Substiute Parts

V250LS10P

Littelfuse Inc.In Stock: 1311V250LS10P Datasheet

Current PartRFQ

V250LT10P

Littelfuse Inc.In Stock: 1793V250LT10P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V250LT10P qualifies as a parametric equivalent to the V250LS10P based on the following criteria:

All electrical specifications are identical: Maximum AC voltage (250 V), maximum DC voltage (330 V), varistor voltage range (351 V minimum to 429 V maximum, 390 V typical), surge current capacity (2.5 kA), and energy rating (40 J).

Mechanical compatibility is maintained: Both parts use identical through-hole mounting, disc 10mm package form factor, and single-circuit configuration.

Environmental and compliance specifications match: Operating temperature range (-55°C to 85°C), capacitance at 1 MHz (220 pF), moisture sensitivity level (MSL 1 - Unlimited), RoHS3 compliance, and REACH unaffected status are equivalent.

The only distinction is the series designation (LS versus LT), which reflects internal manufacturing or design revision within Littelfuse's product line but does not affect functional performance or circuit compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the V250LS10P and V250LT10P are active production parts from Littelfuse Inc. with full ROHS3 compliance and REACH unaffected status, making either suitable for new designs and existing applications requiring transient voltage suppression at 390 V nominal varistor voltage with 2.5 kA surge capacity.

Selection between these parts may be based on inventory availability: V250LS10P has 1235 units in stock, while V250LT10P has 1753 units available. Both parts maintain identical electrical performance, thermal characteristics, and mechanical compatibility in through-hole disc 10mm configurations.

Frequently Asked Questions (FAQ)

Q: Can V250LT10P directly replace V250LS10P in existing circuit designs?

A: Yes. All electrical parameters, mechanical dimensions, and environmental specifications are identical. Direct substitution requires no circuit modifications or re-qualification.

Q: What is the difference between the LS and LT series designations?

A: The series designation reflects internal manufacturing or design revision within Littelfuse's product line. No functional or performance differences exist between LS and LT variants for this varistor model.

Q: Are both parts suitable for high-temperature applications?

A: Both parts operate across -55°C to 85°C. Applications requiring operation beyond this range require alternative varistor models.

Q: Do these parts require special handling or storage conditions?

A: Both parts have MSL 1 (Unlimited) moisture sensitivity level, indicating no special moisture control requirements during storage or handling.

Q: Are these parts compliant with current environmental regulations?

A: Yes. Both V250LS10P and V250LT10P are ROHS3 compliant and REACH unaffected, meeting current environmental standards for electronic component manufacturing and use.