MF-VS210S-0 Equivalent & Substitute Parts

Part Overview

The MF-VS210S-0 is a polymeric PTC resettable fuse manufactured by Bourns Inc. in the Multifuse® MF-VS series. This component is rated for 16V maximum voltage with a 2.1A hold current and 4.7A trip current, designed for overcurrent protection in electronic circuits. The part is currently listed as obsolete, making identification of equivalent and substitute components essential for ongoing design support and component sourcing.

Key Parameters

Parameter	Value
Voltage - Max	16V
Current - Hold (Ih) (Max)	2.1 A
Current - Trip (It)	4.7 A
Current - Max	100 A
Time to Trip	5 s
Resistance - Initial (Ri) (Min)	18 mOhms
Resistance - Post Trip (R1) (Max)	60 mOhms
Operating Temperature	-40°C ~ 85°C
Type	Polymeric
Package / Case	Strap
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the MF-VS210S-0 is determined by strict alignment of electrical and mechanical parameters. The critical parameters governing substitutability are:

Voltage rating: 16V maximum
Hold current (Ih): 2.1A maximum
Trip current (It): 4.7A
Initial resistance (Ri): 18 mOhms minimum
Post-trip resistance (R1): 60 mOhms maximum
Operating temperature range: -40°C to 85°C
Package type: Strap configuration
Time to trip: 5 seconds

Substitute parts are classified into two categories:

Direct Substitutes maintain identical electrical specifications and strap package configuration, differing only in physical dimensions or packaging format. These parts are interchangeable for the same circuit protection function.

Similar Substitutes share the same voltage, hold current, and trip current specifications but differ in package type (surface mount versus strap) or current rating variations. These require mechanical redesign considerations.

Parameter Comparison

Parameter	MF-VS210S-0	MF-VS210-0	VTP210SF	MINISMDC260F/16-2	VTP110F
Manufacturer	Bourns Inc.	Bourns Inc.	Littelfuse	Littelfuse Inc.	Littelfuse Inc.
Series	Multifuse® MF-VS	Multifuse® MF-VS	PolySwitch® VTP	PolySwitch® miniSMD	PolySwitch® VTP
Product Status	Obsolete	Active	Active	Active	Active
Voltage - Max	16V	16V	16V	16V	16V
Current - Hold (Ih) (Max)	2.1 A	2.1 A	2.1 A	2.6 A	1.1 A
Current - Trip (It)	4.7 A	4.7 A	4.7 A	5 A	2.7 A
Current - Max	100 A	100 A	100 A	100 A	100 A
Time to Trip	5 s	5 s	5 s	5 s	5 s
Resistance - Initial (Ri) (Min)	18 mOhms	18 mOhms	18 mOhms	15 mOhms	38 mOhms
Resistance - Post Trip (R1) (Max)	60 mOhms	60 mOhms	60 mOhms	50 mOhms	140 mOhms
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Type	Polymeric	Polymeric	Polymeric	Polymeric	Polymeric
Package / Case	Strap	Strap	Strap	1812 (4532 Metric), Concave	Strap
Mounting Type	User Defined	User Defined	User Defined	Surface Mount	User Defined
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	UR	cURus, TUV	CSA, TUV, UL	CSA, TUV, UL	CSA, TUV, UL

Engineering Selection Recommendations

MF-VS210-0 (Bourns Inc., Active Status) is the primary direct substitute for the obsolete MF-VS210S-0. Both components share identical electrical specifications: 16V voltage rating, 2.1A hold current, 4.7A trip current, 18 mOhms initial resistance, and 60 mOhms post-trip resistance. The MF-VS210-0 is available in active production with higher inventory levels (10,400 pcs) and carries expanded regulatory approvals (cURus, TUV) compared to the original part's UR approval. Physical dimensions differ slightly (22.00mm x 5.20mm versus 17.00mm x 5.20mm), but both maintain strap package configuration suitable for identical mounting approaches.

VTP210SF (Littelfuse, Active Status) provides direct electrical equivalence with identical 16V, 2.1A, and 4.7A specifications. This component is manufactured by an alternative supplier and carries comprehensive regulatory approvals (CSA, TUV, UL). Physical dimensions are 23.10mm x 5.30mm with 0.80mm thickness. Inventory availability is 1,100 pcs. This part is suitable for applications requiring multi-source component qualification.

MINISMDC260F/16-2 (Littelfuse Inc., Active Status) is classified as a similar substitute due to package type difference (surface mount 1812 versus strap) and current rating variation (2.6A hold current versus 2.1A). While voltage and trip current specifications align with the original part, the higher hold current and different mounting technology require circuit redesign evaluation. This component is available in high volume (20,237 pcs) on tape and reel packaging.

VTP110F (Littelfuse Inc., Active Status) is classified as a similar substitute with reduced current ratings (1.1A hold current, 2.7A trip current) and increased post-trip resistance (140 mOhms maximum). This part is suitable only for applications with lower current protection requirements and should not be used as a direct replacement without circuit analysis.

Frequently Asked Questions (FAQ)

Q: Can MF-VS210-0 be used as a direct replacement for the obsolete MF-VS210S-0?

A: Yes. Both components share identical electrical specifications (16V, 2.1A hold current, 4.7A trip current, 18 mOhms initial resistance, 60 mOhms post-trip resistance) and strap package configuration. The MF-VS210-0 is in active production with expanded regulatory approvals.

Q: What is the difference between direct substitutes and similar substitutes?

A: Direct substitutes maintain identical electrical parameters and package type, requiring no circuit modifications. Similar substitutes differ in package configuration (surface mount versus strap) or current ratings, necessitating mechanical redesign or circuit analysis before implementation.

Q: Can VTP210SF replace MF-VS210S-0 in existing designs?

A: Yes, for electrical function. VTP210SF provides identical voltage, hold current, and trip current specifications. Physical dimensions differ slightly (23.10mm x 5.30mm versus 17.00mm x 5.20mm), but both maintain strap configuration. Verify mechanical fit in your specific application.

Q: Why is MINISMDC260F/16-2 listed as a similar substitute rather than a direct substitute?

A: MINISMDC260F/16-2 differs in two critical aspects: package type (surface mount 1812 versus strap) and hold current rating (2.6A versus 2.1A). These differences require mechanical redesign and circuit analysis to confirm suitability.

Q: Is VTP110F suitable as a replacement for MF-VS210S-0?

A: No, without circuit analysis. VTP110F has significantly lower current ratings (1.1A hold current versus 2.1A, 2.7A trip current versus 4.7A) and higher post-trip resistance (140 mOhms versus 60 mOhms). Use only in applications with reduced current protection requirements.

Q: What regulatory approvals should I verify for my application?

A: The original MF-VS210S-0 carries UR approval. Active substitutes offer expanded certifications: MF-VS210-0 (cURus, TUV), VTP210SF (CSA, TUV, UL), and MINISMDC260F/16-2 (CSA, TUV, UL). Confirm your application's specific approval requirements before component selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed components, including the original MF-VS210S-0 and all substitutes, are ROHS3 compliant.

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