V300LC4P Equivalent & Substitute Parts

Part Overview

The V300LC4P is a 470 V, 1.2 kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently active in production with 1104 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

V300LC4P

Littelfuse Inc.In Stock: 1168V300LC4P Datasheet

Current PartRFQ

V300LA4P

Littelfuse Inc.In Stock: 19802V300LA4P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V300LA4P is classified as a parametric equivalent to the V300LC4P based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Varistor voltage rating: 470 V (typical)
• Surge current capacity: 1.2 kA
• Maximum AC voltage: 300 V
• Maximum DC voltage: 405 V
• Energy dissipation: 25 J
• Package form factor: Disc 7mm through-hole
• Operating temperature range: -55°C to 85°C
• Single circuit configuration
• Capacitance: 70 pF @ 1 MHz

Both parts are manufactured by Littelfuse Inc. and share identical performance envelopes across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the V300LC4P and V300LA4P are active production components from Littelfuse Inc. with full ROHS3 compliance and REACH unaffected status. The V300LA4P offers significantly higher inventory availability (19,700 units) compared to the V300LC4P (1,104 units), making it suitable for high-volume applications or extended lead-time mitigation. Both parts meet identical electrical performance specifications and are qualified for the same operating environment. Selection between these parts should be based on supply chain requirements and inventory availability rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Are the V300LC4P and V300LA4P electrically interchangeable?

A: Yes. Both parts share identical varistor voltage ratings (470 V typical), surge current capacity (1.2 kA), maximum voltage ratings (300 V AC / 405 V DC), energy dissipation (25 J), and operating temperature range (-55°C to 85°C). All electrical parameters fall within the same specification envelope.

Q: Can these parts be used interchangeably in PCB designs?

A: Yes. Both components use identical through-hole disc 7mm packaging and mounting type. No PCB layout modifications are required when substituting between these parts.

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

A: The LC and LA designations represent different product series within the Littelfuse varistor portfolio. Both series share identical electrical and mechanical specifications for this voltage and current rating. The series designation does not affect functional performance or compatibility.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the V300LC4P and V300LA4P are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the moisture sensitivity level for these components?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.