V150LS20B Equivalent & Substitute Parts

Part Overview

The V150LS20B is a 229.5 V disc varistor rated for 6.5 kA surge current, manufactured by Littelfuse Inc. in the LS series. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The varistor provides transient voltage suppression across a single circuit with a 20mm disc form factor and through-hole mounting configuration. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Varistor Voltage (Typical)	229.5 V
Current - Surge	6.5 kA
Maximum AC Volts	150 V
Maximum DC Volts	200 V
Energy	80 J
Operating Temperature Range	-55°C to 85°C
Capacitance @ 1 MHz	1600 pF
Mounting Type	Through Hole
Package / Case	Disc 20mm
Number of Circuits	1
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the V150LS20B are grouped into three categories based on series designation while maintaining all critical electrical parameters:

Direct Series Substitutes (LS Series): V150LS20BP, V150LS20BPX10, and V150LS20BPX2855 are direct equivalents within the LS series, differing only in packaging configuration (Tape & Reel versus bulk). These parts maintain identical varistor voltage (216–243 V range, 229.5 V typical), surge current (6.5 kA), energy rating (80 J), and thermal specifications.

Cross-Series Parametric Equivalents (LT and LU Series): V150LT20BP, V150LT20BPX10, V150LT20BPX2855, V150LU20BP, V150LU20BPX10, and V150LU20BPX2855 are parametric equivalents from alternative Littelfuse series (LT and LU). These parts share identical electrical performance specifications, operating temperature range, and mechanical form factor, with series designation as the only distinguishing characteristic.

Key Parameters Determining Substitution:

Varistor voltage range (216–243 V)
Surge current rating (6.5 kA)
Energy dissipation (80 J)
Operating temperature (-55°C to 85°C)
Disc 20mm through-hole package
Single circuit configuration
ROHS3 compliance

Parameter Comparison

Part Number	Series	Varistor Voltage (Typ)	Surge Current	Energy	Packaging	Product Status	Inventory (Pcs)
V150LS20B	LS	229.5 V	6.5 kA	80 J	Bulk	Obsolete	920
V150LS20BP	LS	229.5 V	6.5 kA	80 J	Tape & Reel	Active	883
V150LS20BPX10	LS	229.5 V	6.5 kA	80 J	Tape & Reel	Active	688
V150LS20BPX2855	LS	229.5 V	6.5 kA	80 J	Tape & Reel	Active	869
V150LT20BP	LT	229.5 V	6.5 kA	80 J	Tape & Reel	Active	714
V150LT20BPX10	LT	229.5 V	6.5 kA	80 J	Tape & Reel	Active	1088
V150LT20BPX2855	LT	229.5 V	6.5 kA	80 J	Tape & Reel	Active	725
V150LU20BP	LU	229.5 V	6.5 kA	80 J	Tape & Reel	Active	836
V150LU20BPX10	LU	229.5 V	6.5 kA	80 J	Tape & Reel	Active	778
V150LU20BPX2855	LU	229.5 V	6.5 kA	80 J	Tape & Reel	Active	661

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the V150LS20B. Selection should prioritize active product status parts to ensure long-term availability and supply chain stability. All substitutes are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications.

For applications requiring bulk packaging, V150LS20BP offers the most direct substitution within the active LS series. For applications utilizing automated assembly with tape and reel packaging, V150LS20BPX10 and V150LS20BPX2855 provide equivalent electrical performance with enhanced procurement flexibility.

Cross-series substitutes (LT and LU variants) deliver identical electrical performance and are suitable for direct replacement in existing designs. V150LT20BPX10 offers the highest current inventory level among all substitutes, supporting high-volume procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can V150LT20BP and V150LU20BP be used interchangeably with V150LS20B?

A: Yes. All three series (LS, LT, LU) maintain identical varistor voltage (229.5 V typical), surge current (6.5 kA), energy rating (80 J), operating temperature range (-55°C to 85°C), and disc 20mm through-hole package configuration. Series designation does not affect electrical performance or mechanical compatibility.

Q: What is the difference between bulk and Tape & Reel packaging options?

A: The V150LS20B is supplied in bulk packaging. Substitute parts V150LS20BP, V150LT20BP, and V150LU20BP are available in Tape & Reel (TR) format, which is standard for automated assembly processes. The electrical specifications and component performance remain identical; packaging affects only handling and assembly methodology.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original V150LS20B specifications.

Q: Why is V150LS20B marked as obsolete?

A: The V150LS20B is classified as obsolete, but active equivalent parts are available across LS, LT, and LU series variants. All listed substitutes are active products with confirmed inventory and ongoing manufacturer support.

Q: Which substitute part offers the best availability?

A: V150LT20BPX10 currently maintains the highest inventory level at 1088 pieces, followed by V150LS20BPX2855 at 869 pieces. Both parts are active products with identical electrical specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message