LVR008S-2 Equivalent & Substitute Parts

Part Overview

The LVR008S-2 is a polymeric PTC resettable fuse manufactured by Littelfuse Inc., rated for 240V (265V internal) with an 80 mA hold current. This component is designed for overcurrent protection in electronic circuits through automatic thermal reset functionality. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing system maintenance and new design implementations. Active equivalent parts are available from both the original manufacturer and alternative suppliers.

Key Parameters

Parameter	Value
Voltage Rating (Max)	240V (265V Internal)
Current - Hold (Ih)	80 mA
Current - Trip (It)	190 mA
Resistance - Initial (Ri)	7.4 Ohms (Min)
Resistance - Post Trip (R1)	26 Ohms (Max)
Operating Temperature Range	-20°C to 85°C
Mounting Type	Through Hole Radial
Package Type	Radial, Disc
Lead Spacing	0.200" (5.08mm)
Approval Agencies	CQC, CSA, TUV, UL
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the LVR008S-2 is determined by strict alignment of electrical and mechanical parameters. The critical parameters that define functional equivalence are:

Voltage rating of 240V minimum
Hold current (Ih) of 80 mA
Trip current (It) of 190 mA
Initial resistance (Ri) of 7.4 Ohms minimum
Post-trip resistance (R1) of 26 Ohms maximum
Through-hole radial mounting configuration
Lead spacing of 0.200" (5.08mm) nominal

Both identified substitutes meet these core electrical specifications. Physical dimensions vary slightly between parts, which is acceptable within industry tolerances for radial disc packages. All substitute parts maintain ROHS3 compliance and are manufactured by established component suppliers with appropriate regulatory certifications.

Parameter Comparison

Parameter	LVR008S-2 (Main)	LVR008NS-2 (Littelfuse)	0ZRE0008FF2C (Bel Fuse)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Bel Fuse Inc.
Product Status	Obsolete	Active	Active
Voltage - Max	240V (265V Int)	240V (265V Int)	240V
Current - Hold (Ih)	80 mA	80 mA	80 mA
Current - Trip (It)	190 mA	190 mA	190 mA
Current - Max	1.2 A	1.2 A	1.5 A
Time to Trip	10 s	10 s	15 s
Resistance - Initial (Ri)	7.4 Ohms	7.4 Ohms	7.4 Ohms
Resistance - Post Trip (R1)	26 Ohms	26 Ohms	26 Ohms
Operating Temperature	-20°C to 85°C	-20°C to 85°C	-40°C to 85°C
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Disc	Radial, Disc	Radial, Disc
Lead Spacing	0.200" (5.08mm)	0.200" (5.08mm)	0.201" (5.10mm)
Approval Agency	CQC, CSA, TUV, UL	CQC, CSA, TUV, UL	cURus, TUV
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The LVR008NS-2 from Littelfuse Inc. is the primary substitute for the obsolete LVR008S-2. Both parts share identical electrical specifications and are manufactured by the same supplier. The LVR008NS-2 maintains active product status with higher inventory availability (4299 units) compared to the original part. This part carries the same regulatory certifications (CQC, CSA, TUV, UL) and is ROHS3 compliant.

The 0ZRE0008FF2C from Bel Fuse Inc. is a secondary substitute option. While it meets all critical electrical parameters (80 mA hold current, 190 mA trip current, 7.4 Ohms initial resistance, 26 Ohms post-trip resistance), it differs in maximum current rating (1.5 A versus 1.2 A) and trip time (15 s versus 10 s). The 0ZRE0008FF2C provides an extended operating temperature range (-40°C to 85°C) and includes AEC-Q200 automotive qualification. Regulatory certifications differ slightly (cURus, TUV versus CQC, CSA, TUV, UL).

Selection between these substitutes depends on specific application requirements regarding trip time response, maximum current handling, and regulatory certification needs.

Frequently Asked Questions (FAQ)

Q: Can LVR008NS-2 be used as a direct replacement for LVR008S-2?

A: Yes. Both parts have identical electrical specifications: 240V rating, 80 mA hold current, 190 mA trip current, 7.4 Ohms initial resistance, and 26 Ohms post-trip resistance. Lead spacing is identical at 0.200" (5.08mm). The LVR008NS-2 is the manufacturer's active equivalent.

Q: What are the physical dimension differences between substitutes?

A: The LVR008S-2 measures 0.327" diameter × 0.150" thickness (8.30mm × 3.80mm). The LVR008NS-2 measures 0.283" diameter × 0.181" thickness (7.20mm × 4.60mm). The 0ZRE0008FF2C measures 0.327" length × 0.150" width (8.30mm × 3.80mm). All are radial disc packages with compatible through-hole mounting.

Q: Does the 0ZRE0008FF2C differ functionally from the original part?

A: The 0ZRE0008FF2C maintains equivalent hold and trip current specifications but has a longer trip time (15 s versus 10 s) and higher maximum current rating (1.5 A versus 1.2 A). Operating temperature range extends to -40°C. These differences may affect circuit response characteristics in time-sensitive applications.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All three parts (LVR008S-2, LVR008NS-2, and 0ZRE0008FF2C) are ROHS3 compliant and REACH unaffected.

Q: Which substitute has the best regulatory coverage?

A: The LVR008NS-2 carries certifications from CQC, CSA, TUV, and UL. The 0ZRE0008FF2C carries cURus and TUV certifications. Application requirements determine which certification set is necessary.

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