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Multifuse® Polymer PTC Resettable Fuses

Resettable Fuses - Multifuse® PPTC

A broad range of circuit safeguard applications rely on the overcurrent protection provided by Bourns® Multifuse® Polymer Positive Temperature Coefficient (PPTC) Resettable Fuses. The newest 125 °C polymer PTC devices are particularly developed to give robust and cost-effective protection and reduce short circuits, especially in a range of demanding settings with high voltage temperatures. These components remove the need for any temperature-based nuisance tripping across all such applications, while offering increased, high resistance protection in space-saving surface mount packages.

You can rely on Bourns® resettable polymer PTC thermistors for increased resistance of circuit protection and flexibility with its compact SMD devices that provide more freedom than similar radial leaded devices for designers working in space-constrained layouts. A wider selection of applications include: automobile circuitry protection, overcurrent surge protection of high reliability electronic equipment, robust resettable fault protection for industrial transportation, communication, security, and consumer electronic equipment.

Quick link to the Sample Request: Request Sample

Surface Mount (SMD) Low Ohmic Series

Series Data Sheet Photo Footprint Vmax Ihold
(A)
Operating Temp. (°C) Agency Certificates MDS Design Files Engineering Buy Now
MF-ASML/X MF-ASML/X MF-ASML-X_part 0402 6 Vdc 0.10 - 0.50 -40 – +85 cUL: E174545
TÜV: R 50391579
MDS Design Files Buy
MF-FSML/X MF-FSML/X MF-FSML-X_part 0603 6 – 8 Vdc 0.35 - 3.00 -40 – +85 cUL: E174545
TÜV: R 50391579
MDS Design Files Buy
MF-PSML MF-PSML mf-psml_part 0805 6 Vdc 0.75 - 3.50 -40 – +85 cUL: E174545
TÜV: R 50302873
MDS Design Files Buy
MF-PSML/X MF-PSML/X MF-PSML-X_part 0805 6 – 12 Vdc 0.75 - 4.50 -40 – +85 cUL: E174545
TÜV: R 50391579
MDS Design Files Buy
MF-NSML MF-NSML MF-NSML_part 1206 6 Vdc 1.50 - 6.00 -40 – +85 cUL: E174545
TÜV: R 50302873
MDS Design Files Buy
MF-NSML/X MF-NSML/X MF-NSML-X_part 1206 6 – 12 Vdc 1.5 - 6.0 -40 – +85 cUL: E174545
TÜV: R 50391579
MDS Design Files Buy
MF-USML MF-USML MF-USML_part 1210 6 Vdc 1.75 - 7.00 -40 – +85 cUL: E174545
TÜV: R 50302873
MDS Design Files Buy
MF-USML/X MF-USML/X MF-USML-X_part 1210 6 – 12 Vdc 1.75 - 7.0 -40 – +85 cUL: E174545
TÜV: R 50391579
MDS Design Files Buy

Surface Mount (SMD) High Temperature Series

Series Data Sheet Photo Footprint Vmax Ihold
(A)
Operating Temp. (°C) Agency Certificates MDS Design Files Engineering Buy Now
MF-FSHT MF-FSHT MF-FSHT 0603 12 Vdc 0.05 - 0.16 -40 – +125 cUL: E174545
TÜV: R 50384138
MDS Design Files Buy
MF-PSHT MF-PSHT MF-PSHT_part 0805 12 – 16 Vdc 0.05 - 0.50 –40 – +125 cUL: E174545
TÜV: R 50384138
MDS Design Files Buy
MF-NSHT MF-NSHT MF-NSHT_part 1206 12 – 30 Vdc 0.10 - 0.75 –40 – +125 cUL: E174545
TÜV: R 50384138
MDS Design Files Buy
MF-USHT MF-USHT MF-USHT_part 1210 9 – 30 Vdc 0.10 - 1.50 –40 – +125 cUL: E174545
TÜV: R 50384138
MDS Design Files Buy
MF-MSHT MF-MSHT mf-msht_part 1812 9 - 42 Vdc 0.2 - 1.75 -40 – +125 cUL: E174545
TÜV: R 50384138
MDS Design Files Buy
MF-SMHT MF-SMHT mfsmht Refer to Data Sheet 16 Vdc 1.36 - 3.0 -40 – +125 MDS Design Files Buy

Surface Mount (SMD) Standard Series

Series Data Sheet Photo Footprint Vmax Ihold
(A)
Operating Temp. (°C) Agency Certificates MDS Design Files Engineering Buy Now
MF-FSMF MF-FSMF mffsmf_part 0603 6 – 15 Vdc 0.10 - 0.50 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-PSMF MF-PSMF mfpsmf_part 0805 6 – 24 Vdc 0.10 - 1.10 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-NSMF MF-NSMF mfnsmf_part 1206 6 - 30 Vdc 0.12 - 2.00 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-USMF MF-USMF mfusmf_part 1210 6 – 30 Vdc 0.05 - 1.75 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-MSMF MF-MSMF mfmsmf_part 1812 6 - 60 Vdc 0.1 - 3.0 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-SMDF MF-SMDF mfsmdf_053g_ai10_part 2018 10 – 60 Vdc 0.30 - 2.60 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-LSMF MF-LSMF MF-LSMF_part 2920 6 – 33 Vdc 0.75 - 6.0 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-GSMF MF-GSMF MF-GSMF_part 3425 36 Vdc 3.0 -40 – +85 cUL: E174545
TÜV: R 50256634
MDS Design Files Buy
MF-SM MF-SM mfsm_lg Refer to Data Sheet 6 – 60 Vdc 0.3 – 3.0 -40 – +85 cUL: E174545
TÜV: R 50362083
MDS Design Files Buy
MF-SM/250 MF-SM/250 mfsm250 Refer to Data Sheet 60 Vdc
250 Vac
0.08 – 0.13 -40 – +85 cUL: E174545
TÜV: R 50362083
MDS Design Files Buy
MF-SM/250V MF-SM/250V mfsm013_250v_part Refer to Data Sheet 60 Vdc
250 Vac
0.13 -40 – +85 cUL: E174545
TÜV: R 50362083
MDS Design Files Buy
MF-SD/250 MF-SD/250 MFSD250_part Refer to Data Sheet 60 Vdc
250 Vac
0.13 -40 – +85 cUL: E174545 MDS Design Files Buy

Radial Leaded, Through Holes Series

Series Data Sheet Photo Vmax Ihold
(A)
Operating Temp.
(°C)
Agency Certificates MDS Design Files Engineering Buy Now
MF-R MF-R MF-R_part 16 – 60 Vdc 0.05 - 11.0 -40 – +85 cUL: E174545
TÜV: R 50366745
MDS Design Files Buy
MF-RG MF-RG mfrg700_part 16 Vdc 3.0 - 11.0 -40 – +85 cUL: E174545 MDS Design Files Buy
MF-RX/72 MF-RX/72 mfrx72 72 Vdc 0.2 - 3.75 -40 – +85 cUL: E174545
TÜV: R 50366745
MDS Design Files Buy
MF-RHT MF-RHT mfrht_part 16 – 32 Vdc 0.5 - 13.0 -40 – +125 cUL: E174545
TÜV: R 50494578
MDS Design Files Buy
MF-RM MF-RM MF-RM_part 240 Vac
265 Vac
0.05 - 0.55 -20 – +85 cUL: E174545
TÜV: R 50232433
MDS Design Files Buy
MF-RX/250 MF-RX/250 mfrx250 60 Vdc
250 Vac
0.12 - 0.18 -40 – +85 cUL: E174545
TÜV: R 50260658
MDS Design Files Buy

Axial Leaded (Strap) Series

Series Data Sheet Photo Vmax Ihold
(A)
Operating Temp.
(°C)
Agency Certificates MDS Design Files Engineering Buy Now
MF-LR MF-LR mflr 10 – 20 Vdc 1.9 - 9.0 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy
MF-LS MF-LS MF-LS 15 – 24 Vdc 1.8 - 3.4 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy
MF-S MF-S MF-S 15 – 30 Vdc 1.2 - 4.2 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy
MF-SVS MF-SVS MF-SVS 10 Vdc 1.7 - 2.7 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy
MF-VS MF-VS MF-VS 16 Vdc 1.7 - 2.1 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy
MF-VS Narrow Body MF-VS Narrow Body MF-VSN 12 Vdc 1.7 - 2.1 -40 – +85 cUL: E174545
TÜV: R 50410733
MDS Design Files Buy

Customized and DC Motor Series

Series Data Sheet Photo Vmax Ihold
(A)
Operating Temp.
(°C)
Agency Certificates MDS Design Files Engineering Buy Now
MF-D MF-D mfd_part 15 Vdc 2.5 - 12.2 -40 – +85 cUL: E174545 MDS Design Files Buy
MF-DC MF-DC MF-DC_part 16 Vdc 50 -40 – +125 Available Upon Request MDS Available Upon Request Buy
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