Skip to main content

Bourns Inc. MFMS Series

12 variants · Bourns Inc.

About the Bourns Inc. MFMS Series

The Bourns Inc. MFMS Series series groups 12 related part numbers, each listed with full specifications, a datasheet where available, and an RFQ option. The listed variants share a common approval agency of cURus, TUV, case of 1812 (4532 Metric), Concave and height - seated of -. Variants differ by current - hold (Ih), current - max and current - trip, so you can match the exact current - hold (Ih) your application requires using the selection guide below. The range mixes active and legacy part numbers, so you can source both current Bourns Inc. MFMS Series variants and discontinued ones from a single page.

Select a variant by

Current - hold (Ih)
1.1 A · 1.25 A · 1.5 A · 1.6 A · 2 A · 2.5 A · 2.6 A
Current - max
20 A · 40 A · 100 A
Current - trip
2.2 A · 2.5 A · 2.8 A · 3 A · 4 A · 5 A · 5.2 A
Resistance - initial (Ri)
15 mOhms · 20 mOhms · 30 mOhms · 35 mOhms · 40 mOhms · 60 mOhms
Resistance - post trip (R1)
80 mOhms · 99 mOhms · 100 mOhms · 120 mOhms · 140 mOhms · 180 mOhms · 210 mOhms
Size (Dimension)
0.179\" L x 0.128\" W (4.55mm x 3.24mm) · 0.181\" L x 0.128\" W (4.60mm x 3.24mm)
Time to trip
1.5 s · 2 s · 3 s · 5 s · 300 ms · 400 ms · 500 ms
Voltage - max
6V · 8V · 16V · 24V

Shared specifications

Approval agency
cURus, TUV
Case
1812 (4532 Metric), Concave
Height - seated
-
Lead spacing
-
Mounting
Surface Mount
Operating temperature
-40°C~85°C
Package
Tape & Reel (TR); Cut Tape (CT)
Ratings
AEC-Q200
Thickness
0.033\" (0.85mm)
Type
Polymeric

Variant comparison

ParameterMF-MSMF110/16-2MF-MSMF110-2MF-MSMF110/24X-2MF-MSMF125-2MF-MSMF150-2MF-MSMF150/24X-2
Current - hold (Ih)1.1 A1.1 A1.1 A1.25 A1.5 A1.5 A
Current - max100 A100 A20 A100 A100 A20 A
Current - trip2.2 A2.2 A2.2 A2.5 A3 A3 A
Resistance - initial (Ri)40 mOhms40 mOhms60 mOhms35 mOhms30 mOhms30 mOhms
Resistance - post trip (R1)210 mOhms210 mOhms180 mOhms140 mOhms120 mOhms120 mOhms
Size (Dimension)0.179\" L x 0.128\" W (4.55mm x 3.24mm)0.181\" L x 0.128\" W (4.60mm x 3.24mm)0.181\" L x 0.128\" W (4.60mm x 3.24mm)0.179\" L x 0.128\" W (4.55mm x 3.24mm)0.179\" L x 0.128\" W (4.55mm x 3.24mm)0.179\" L x 0.128\" W (4.55mm x 3.24mm)
Time to trip300 ms300 ms500 ms400 ms500 ms1.5 s
Voltage - max16V6V24V6V6V24V

Request a quote on any Bourns Inc. MFMS Series part number and we confirm price, availability and lead time per line — including end-of-life and allocation-constrained variants.

All variants