LVR008S-1 Equivalent & Substitute Parts

Part Overview

The LVR008S-1 is a polymeric PTC resettable fuse manufactured by Littelfuse Inc., rated for 240V (265V internal) with an 80 mA hold current. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The part functions as a thermal protection device in through-hole radial configuration, suitable for applications requiring automatic circuit protection with reset capability.

Key Parameters

Parameter	Value
Voltage - Max	240V (265V Int)
Current - Hold (Ih)	80 mA
Current - Trip (It)	190 mA
Current - Max	1.2 A
Time to Trip	10 s
Resistance - Initial (Ri)	7.4 Ohms (Min)
Resistance - Post Trip (R1)	26 Ohms (Max)
Operating Temperature	-20°C ~ 85°C
Mounting Type	Through Hole
Package / Case	Radial, Disc
Lead Spacing	0.200" (5.08mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the LVR008S-1 is determined by the following critical parameters:

Voltage rating: 240V maximum
Current hold (Ih): 80 mA
Current trip (It): 190 mA
Mounting type: Through hole radial configuration
Package compatibility: Radial disc form factor
Lead spacing: 0.200" (5.08mm)
Compliance: ROHS3 compliant

Parts are grouped into two categories:

Direct Littelfuse Equivalent: LVR008NS-1 maintains identical electrical specifications and is the active production equivalent to the obsolete LVR008S-1.

Cross-Manufacturer Alternatives: Bel Fuse Inc. 0ZRE series parts (0ZRE0008FF1C, 0ZRE0008FF2C) provide equivalent 80 mA hold current performance with extended operating temperature range and AEC-Q200 automotive qualification.

Parameter Comparison

Parameter	LVR008S-1	LVR008NS-1	0ZRE0008FF1C	0ZRE0008FF2C
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Bel Fuse Inc.	Bel Fuse Inc.
Product Status	Obsolete	Active	Active	Active
Voltage - Max	240V (265V Int)	240V (265V Int)	240V	240V
Current - Hold (Ih)	80 mA	80 mA	80 mA	80 mA
Current - Trip (It)	190 mA	190 mA	190 mA	190 mA
Current - Max	1.2 A	1.2 A	1.5 A	1.5 A
Time to Trip	10 s	10 s	15 s	15 s
Resistance - Initial (Ri)	7.4 Ohms (Min)	7.4 Ohms (Min)	7.4 Ohms (Min)	7.4 Ohms (Min)
Resistance - Post Trip (R1)	26 Ohms (Max)	26 Ohms (Max)	26 Ohms (Max)	26 Ohms (Max)
Operating Temperature	-20°C ~ 85°C	-20°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	Radial, Disc	Radial, Disc	Radial, Disc	Radial, Disc
Lead Spacing	0.200" (5.08mm)	0.200" (5.08mm)	0.201" (5.10mm)	0.201" (5.10mm)
Approval Agency	CQC, CSA, TUV, UL	CQC, CSA, TUV, UL	cURus, TUV	cURus, TUV
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Ratings	-	-	AEC-Q200	AEC-Q200

Engineering Selection Recommendations

Primary Selection: LVR008NS-1 is the recommended direct replacement for LVR008S-1. Both parts are manufactured by Littelfuse Inc., share identical electrical specifications, and maintain the same approval certifications (CQC, CSA, TUV, UL). The LVR008NS-1 is in active production status, ensuring long-term availability and supply chain continuity.

Alternative Selection: Bel Fuse Inc. 0ZRE0008FF1C and 0ZRE0008FF2C are functionally equivalent alternatives with extended operating temperature range (-40°C to 85°C versus -20°C to 85°C) and AEC-Q200 automotive qualification. These parts are suitable for applications requiring broader temperature performance or automotive-grade reliability. Lead spacing tolerance (0.201" versus 0.200") is within acceptable PCB design margins for through-hole applications.

Packaging Consideration: LVR008NS-1 is supplied in bag packaging, while 0ZRE0008FF1C is supplied in box packaging and 0ZRE0008FF2C in cut tape. Selection depends on assembly process requirements and volume needs.

Frequently Asked Questions (FAQ)

Q: Can LVR008NS-1 be used as a direct drop-in replacement for LVR008S-1?

A: Yes. LVR008NS-1 maintains identical voltage, current hold, current trip, resistance, and operating temperature specifications. Both parts use the same through-hole radial disc package with 0.200" lead spacing. The primary difference is product status: LVR008S-1 is obsolete while LVR008NS-1 is in active production.

Q: What are the differences between Littelfuse and Bel Fuse alternatives?

A: Littelfuse LVR008NS-1 and Bel Fuse 0ZRE0008FF series share identical hold current (80 mA), trip current (190 mA), and resistance specifications. Bel Fuse alternatives offer extended operating temperature range (-40°C to 85°C) and AEC-Q200 automotive qualification. Time to trip is 10 seconds for LVR008NS-1 and 15 seconds for 0ZRE series. Lead spacing differs by 0.001" (0.200" versus 0.201"), which is negligible for PCB design.

Q: Are the 0ZRE0012FF series parts suitable substitutes?

A: No. The 0ZRE0012FF1C and 0ZRE0012FF2C are rated for 120 mA hold current, which exceeds the LVR008S-1 specification of 80 mA. These parts are not interchangeable and would alter circuit protection characteristics.

Q: What packaging options are available?

A: LVR008NS-1 is supplied in bag packaging. Bel Fuse 0ZRE0008FF1C is supplied in box packaging, and 0ZRE0008FF2C is supplied in cut tape. Selection depends on assembly process requirements and volume specifications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. LVR008NS-1, 0ZRE0008FF1C, and 0ZRE0008FF2C are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

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