V20H300PL2B Equivalent & Substitute Parts

Part Overview

The V20H300PL2B is a 470 V, 10 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse in the HMOV™ series. This through-hole disc component (20mm) is designed for transient voltage protection in industrial and commercial applications. The part is currently Active in product status with 1106 units in stock. Equivalent parts are identified when they maintain identical electrical performance characteristics and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

V20H300PL2B

LittelfuseIn Stock: 1184V20H300PL2B Datasheet

Current PartRFQ

V20H300P

Littelfuse Inc.In Stock: 1977V20H300P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V20H300PL2B is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part V20H300P qualifies as a parametric equivalent based on the following criteria:

• Identical varistor voltage rating (470 V typical, 423–517 V range)
• Matching surge current capacity (10 kA)
• Equivalent maximum AC (300 V) and DC (385 V) voltage ratings
• Identical energy absorption (290 J)
• Same capacitance specification (800 pF @ 1 MHz)
• Matching operating temperature range (-55°C to 125°C)
• Identical package configuration (Disc 20mm, through-hole mounting)
• Single-circuit configuration maintained

Both parts belong to the HMOV™ series and maintain Active product status with full RoHS3 compliance and REACH unaffected designation.

Parameter Comparison

Engineering Selection Recommendations

Both the V20H300PL2B and V20H300P are Active products from Littelfuse with identical electrical and mechanical specifications. Selection between these parts may be based on inventory availability: V20H300PL2B has 1106 units in stock, while V20H300P has 1919 units available. Both parts carry full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial applications. The identical parameter set ensures direct functional interchangeability in circuit designs requiring 470 V varistor protection with 10 kA surge capacity.

Frequently Asked Questions (FAQ)

Q: Can V20H300P be used as a direct replacement for V20H300PL2B?

A: Yes. Both parts are parametrically identical across all electrical ratings (470 V varistor voltage, 10 kA surge current, 290 J energy), operating temperature range (-55°C to 125°C), and mechanical configuration (Disc 20mm, through-hole). They are functionally interchangeable.

Q: Are there any differences in compliance or certification between these parts?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, MSL rating of 1 (Unlimited), and Active product status. Regulatory and environmental certifications are equivalent.

Q: What determines substitution eligibility for this varistor category?

A: Substitution is determined by matching varistor voltage rating (including min/max tolerance band), surge current capacity, maximum AC/DC voltage ratings, energy absorption, capacitance, operating temperature range, and package configuration. All these parameters must align for direct substitution.

Q: Does package type affect substitution?

A: Yes. The Disc 20mm through-hole package is a critical parameter. Substitutes must maintain identical package dimensions and mounting type to ensure PCB compatibility and circuit board layout integrity.

Q: What is the significance of the 800 pF capacitance specification?

A: Capacitance at 1 MHz is a key electrical characteristic of varistors that affects high-frequency circuit behavior. Matching this parameter ensures equivalent performance in transient suppression applications across the specified frequency range.