V150LS20A Equivalent & Substitute Parts

Part Overview

The V150LS20A is a 240 V, 6.5 kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance requirements. Substitute parts maintain identical electrical and mechanical specifications while offering active product status and improved availability.

Key Parameters

Parameter	Value
Maximum AC Volts	150 V
Maximum DC Volts	200 V
Varistor Voltage (Typical)	240 V
Varistor Voltage Range	216 V – 264 V
Current - Surge	6.5 kA
Energy	80 J
Number of Circuits	1
Capacitance @ 1 MHz	1600 pF
Operating Temperature Range	-55°C to 85°C
Mounting Type	Through Hole
Package / Case	Disc 20mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

All substitute parts for the V150LS20A maintain identical electrical performance parameters: 150 V maximum AC rating, 200 V maximum DC rating, 240 V typical varistor voltage (216–264 V range), 6.5 kA surge current capacity, and 80 J energy rating. All substitutes retain the same through-hole mounting configuration with 20mm disc packaging, operating temperature range of -55°C to 85°C, and ROHS3 compliance.

Substitution grouping is based on three criteria:

Direct Manufacturer Equivalent: V150LS20AP differs only in packaging format (Tape & Reel vs. bulk) and product status (Active vs. Obsolete).
Parametric Equivalents - LS Series: V150LS20APX10, V150LS20APX1347, and V150LS20APX2855 maintain identical electrical and mechanical specifications with packaging variants and active product status.
Parametric Equivalents - LT and LU Series: V150LT20AP, V150LT20APX10, V150LT20APX2855, V150LU20AP, V150LU20APX10, and V150LU20APX2855 represent alternative series designations from Littelfuse Inc. with identical performance parameters and active status.

All substitutes are ROHS3 compliant with REACH Unaffected status where specified.

Parameter Comparison

Part Number	Series	Product Status	Packaging	Max AC (V)	Max DC (V)	Varistor Voltage Typ (V)	Surge Current (kA)	Energy (J)	Operating Temp (°C)	Inventory (Pcs)
V150LS20A	LS	Obsolete	Bulk	150	200	240	6.5	80	-55 to 85	873
V150LS20AP	LS	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	1012
V150LS20APX10	LS	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	688
V150LS20APX1347	LS	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	1130
V150LS20APX2855	LS	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	729
V150LT20AP	LT	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	849
V150LT20APX10	LT	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	848
V150LT20APX2855	LT	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	1172
V150LU20AP	LU	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	701
V150LU20APX10	LU	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	1078
V150LU20APX2855	LU	Active	Tape & Reel	150	200	240	6.5	80	-55 to 85	787

Engineering Selection Recommendations

For applications currently using the obsolete V150LS20A, direct substitution is supported by all listed alternatives. Selection should prioritize parts with active product status to ensure long-term supply chain stability.

Primary Recommendation: V150LS20AP provides the closest match as a direct manufacturer equivalent with identical specifications and active status. This part is suitable for both through-hole assembly and automated tape & reel processing.

Alternative Series Options: The LT and LU series variants (V150LT20AP, V150LU20AP, and their packaging derivatives) offer equivalent electrical performance and active product status. These alternatives are appropriate where series designation flexibility exists in design specifications.

Packaging Considerations: All substitute parts are available in Tape & Reel packaging, which is standard for automated assembly processes. The original V150LS20A bulk packaging is not replicated in active alternatives; Tape & Reel format is the current standard for this product category.

Compliance: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can V150LS20A be directly replaced with V150LS20AP?

A: Yes. V150LS20AP is a direct manufacturer equivalent with identical electrical specifications (150 V AC, 200 V DC, 240 V typical varistor voltage, 6.5 kA surge current, 80 J energy) and mechanical configuration (through-hole, 20mm disc). The only difference is packaging format (Tape & Reel vs. bulk) and active product status.

Q: What is the difference between LS, LT, and LU series variants?

A: All three series (LS, LT, LU) maintain identical electrical and mechanical parameters for the V150 240V 6.5kA configuration. Series designation represents internal Littelfuse product line categorization. Selection between series is based on design flexibility and supply availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the compliance profile of the original V150LS20A.

Q: Can I use Tape & Reel packaged parts in place of bulk packaging?

A: Yes. Tape & Reel packaging is compatible with through-hole assembly processes. The component itself is identical; packaging format affects handling and automated processing capability only.

Q: Which substitute part has the highest inventory availability?

A: V150LT20APX2855 has the highest inventory at 1,172 pieces, followed by V150LS20APX1347 at 1,130 pieces. Both are active products suitable for immediate procurement.

Q: Are there any electrical performance differences between substitute options?

A: No. All substitute parts maintain identical electrical specifications: 150 V maximum AC, 200 V maximum DC, 216–264 V varistor voltage range (240 V typical), 6.5 kA surge current, 80 J energy rating, 1600 pF capacitance at 1 MHz, and -55°C to 85°C operating temperature range.

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