Equivalent & Substitute Parts for MF-SM100-2-006

Part Overview

The MF-SM100-2-006 is a Polymeric PTC Resettable Fuse manufactured by Bourns Inc., rated for 30V maximum voltage with a 1.1A hold current. This component is classified as Obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement. The part operates within the -40°C to 85°C temperature range and meets AEC-Q200 automotive qualification standards. Substitute parts must maintain identical electrical performance and mechanical compatibility to ensure direct replacement capability in surface mount applications.

Key Parameters

Parameter	Value
Voltage - Max	30V
Current - Hold (Ih) (Max)	1.1 A
Current - Trip (It)	2.2 A
Current - Max	80 A
Time to Trip	500 ms
Resistance - Initial (Ri) (Min)	120 mOhms
Resistance - Post Trip (R1) (Max)	480 mOhms
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	2-SMD
Size / Dimension	0.287" L x 0.214" W (7.31mm x 5.44mm)
Thickness (Max)	0.118" (3.00mm)
Type	Polymeric
Ratings	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MF-SM100-2-006 is determined by strict equivalence across the following critical parameters:

Voltage rating: 30V maximum
Hold current (Ih): 1.1A maximum
Trip current (It): 2.2A
Maximum current: 80A
Time to trip: 500 ms
Initial resistance (Ri): 120 mOhms minimum
Post-trip resistance (R1): 480 mOhms maximum
Operating temperature range: -40°C to 85°C
Mounting type: Surface Mount
Package type: 2-SMD
Physical dimensions: Compatible with 0.287" L x 0.214" W footprint
Compliance: AEC-Q200, cURus, TUV approval

Two substitute parts meet these criteria: MF-SM100-2 (Bourns Inc., Active status) and PFSM.100.2 (SCHURTER Inc., Active status). Both maintain identical electrical specifications and mechanical compatibility with the obsolete MF-SM100-2-006.

Parameter Comparison

Parameter	MF-SM100-2-006 (Obsolete)	MF-SM100-2 (Bourns)	PFSM.100.2 (SCHURTER)
Manufacturer	Bourns Inc.	Bourns Inc.	SCHURTER Inc.
Product Status	Obsolete	Active	Active
Voltage - Max	30V	30V	30V
Current - Hold (Ih) (Max)	1.1 A	1.1 A	1.1 A
Current - Trip (It)	2.2 A	2.2 A	2.2 A
Current - Max	80 A	80 A	80 A
Time to Trip	500 ms	500 ms	500 ms
Resistance - Initial (Ri) (Min)	120 mOhms	120 mOhms	120 mOhms
Resistance - Post Trip (R1) (Max)	480 mOhms	480 mOhms	480 mOhms
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	2-SMD	2-SMD	2-SMD
Size / Dimension	0.287" L x 0.214" W (7.31mm x 5.44mm)	0.287" L x 0.214" W (7.31mm x 5.44mm)	0.289" L x 0.214" W (7.36mm x 5.44mm)
Thickness (Max)	0.118" (3.00mm)	0.118" (3.00mm)	0.118" (3.00mm)
Type	Polymeric	Polymeric	Polymeric
Ratings	AEC-Q200	AEC-Q200	AEC-Q200
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	cURus, TUV	cURus, TUV	cURus, TUV

Engineering Selection Recommendations

Both substitute parts are qualified for direct replacement of the obsolete MF-SM100-2-006 based on electrical and mechanical parameter equivalence.

MF-SM100-2 (Bourns Inc.) is the primary substitute, maintaining identical specifications and dimensions while offering Active product status with established supply chain availability. This part is available in Cut Tape and Digi-Reel packaging formats.

PFSM.100.2 (SCHURTER Inc.) provides an alternative from a different manufacturer with equivalent electrical performance and AEC-Q200 compliance. Physical dimensions show a minor length variation of 0.002" (0.05mm), which remains within typical PCB layout tolerances for 2-SMD surface mount applications. This part is supplied in Tape & Reel format.

Selection between these substitutes should be based on procurement availability, packaging requirements, and established supplier relationships. Both parts satisfy the functional and compliance requirements of the obsolete MF-SM100-2-006.

Frequently Asked Questions (FAQ)

Q: Can MF-SM100-2 directly replace MF-SM100-2-006 in existing designs?

A: Yes. MF-SM100-2 maintains identical electrical specifications, operating temperature range, and 2-SMD package dimensions. The only difference is product status change from Obsolete to Active.

Q: What is the significance of the 0.002" length difference between MF-SM100-2 and PFSM.100.2?

A: The dimensional variation (7.31mm vs 7.36mm) is within standard PCB layout tolerances for surface mount components and does not affect electrical performance or mechanical fit in standard 2-SMD footprints.

Q: Are both substitute parts AEC-Q200 qualified?

A: Yes. Both MF-SM100-2 and PFSM.100.2 carry AEC-Q200 ratings and cURus/TUV approvals, meeting automotive qualification standards equivalent to the original MF-SM100-2-006.

Q: What packaging options are available for these substitutes?

A: MF-SM100-2 is available in Cut Tape (CT) and Digi-Reel formats. PFSM.100.2 is supplied in Tape & Reel (TR) format. Packaging selection should align with assembly process requirements.

Q: Do the substitute parts have the same moisture sensitivity level?

A: MF-SM100-2 maintains MSL 1 (Unlimited) equivalent to the original part. PFSM.100.2 is listed as Not Applicable for MSL, indicating no moisture sensitivity constraints.

Q: Are both substitutes RoHS3 compliant?

A: Yes. Both MF-SM100-2 and PFSM.100.2 are ROHS3 Compliant and REACH Unaffected, maintaining environmental compliance equivalent to MF-SM100-2-006.

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