V150LS5 Equivalent & Substitute Parts

Part Overview

The V150LS5 is a 240 V, 2.5 kA disc varistor manufactured by Littelfuse Inc., designed for transient voltage suppression in through-hole applications. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance requirements. Active alternatives with identical electrical and mechanical specifications are available from the same manufacturer across different packaging and series configurations.

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	2.5 kA
Energy	25 J
Number of Circuits	1
Capacitance @ 1 MHz	360 pF
Operating Temperature Range	-55°C to 85°C
Mounting Type	Through Hole
Package / Case	Disc 10mm
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the V150LS5 is determined by strict equivalence across the following critical parameters:

Maximum AC Volts: 150 V
Maximum DC Volts: 200 V
Varistor Voltage (Typical): 240 V
Current - Surge: 2.5 kA
Energy: 25 J
Number of Circuits: 1
Operating Temperature Range: -55°C to 85°C
Mounting Type: Through Hole
Package / Case: Disc 10mm

All substitute parts listed maintain identical electrical performance and mechanical form factor. Variations exist only in packaging format (Tape & Reel, Cut Tape) and internal series designation (LS, LT, LU), which do not affect functional equivalence. All substitutes are active products with current manufacturing status and full compliance certifications.

Parameter Comparison

Part Number	Manufacturer	Series	Packaging	Product Status	Max AC (V)	Max DC (V)	Varistor Voltage Typ (V)	Surge Current (kA)	Energy (J)	Operating Temp (°C)	RoHS
V150LS5	Littelfuse Inc.	LS	Bulk	Obsolete	150	200	240	2.5	25	-55 to 85	ROHS3
V150LS5P	Littelfuse Inc.	LS	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LS5PX1347	Littelfuse Inc.	LS	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LS5PX2855	Littelfuse Inc.	LS	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LT5P	Littelfuse Inc.	LT	Cut Tape	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LT5PX2855	Littelfuse Inc.	LT	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LU5P	Littelfuse Inc.	LU	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3
V150LU5PX2855	Littelfuse Inc.	LU	Tape & Reel	Active	150	200	240	2.5	25	-55 to 85	ROHS3

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the V150LS5 and are manufactured by Littelfuse Inc. with active product status. Selection among substitutes should be based on packaging requirements and supply chain availability:

For automated assembly (tape-fed systems): V150LS5P, V150LS5PX1347, V150LS5PX2855, V150LT5PX2855, or V150LU5PX2855 are suitable, with Tape & Reel packaging enabling high-volume production workflows.

For manual assembly or low-volume applications: V150LT5P offers Cut Tape packaging for flexible component handling.

For series compatibility: Parts designated LS series (V150LS5P, V150LS5PX1347, V150LS5PX2855) maintain the original series lineage. LT and LU series variants provide equivalent performance with alternative internal configurations.

All substitutes maintain ROHS3 compliance, MSL Level 1 rating, and identical electrical specifications. No functional testing is required when substituting between these parts within the same application circuit.

Frequently Asked Questions (FAQ)

Q: Can V150LS5 be directly replaced with V150LS5P? A: Yes. V150LS5P is a direct substitute with identical electrical and mechanical specifications. The primary difference is packaging format: V150LS5P is supplied in Tape & Reel configuration, while V150LS5 was supplied in bulk. Both are through-hole disc 10mm components with 240 V typical varistor voltage and 2.5 kA surge current rating.

Q: What is the difference between LS, LT, and LU series designations? A: Series designations (LS, LT, LU) represent internal manufacturing variants within Littelfuse's varistor product line. All three series maintain identical electrical performance and mechanical specifications for this voltage and current rating. Selection between series is based on packaging availability and supply chain preference, not functional requirements.

Q: Are packaging variants (Tape & Reel vs. Cut Tape) electrically equivalent? A: Yes. Packaging format affects only component delivery and handling method. Electrical and mechanical specifications remain identical across all packaging options. Tape & Reel packaging is optimized for automated assembly, while Cut Tape is suitable for manual or semi-automated processes.

Q: Can I use V150LT5P or V150LU5P as substitutes for V150LS5? A: Yes. V150LT5P and V150LU5P are parametric equivalents with identical voltage ratings, surge current capacity, energy dissipation, and operating temperature range. The series designation change does not affect functional compatibility in the circuit.

Q: What certifications apply to all substitute parts? A: All substitute parts are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating. All are manufactured by Littelfuse Inc. and carry identical ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

Q: Is there a preferred substitute if multiple options are available? A: Selection should be based on packaging requirements and inventory availability. V150LS5P is the closest direct equivalent, maintaining the original LS series designation with Tape & Reel packaging. All listed substitutes are functionally interchangeable for circuit design purposes.

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