RX110
9180S
The MF-RX Series is currently
Features
available, although not recommended
n Cured, flame retardant epoxy polymer
for new designs. The higher voltage
insulating material meets UL 94V-0
rated MF-RX/72 Series is preferred.
requirements
n Agency recognition:
n RoHS compliant* and halogen free**
n Bulk packaging, tape and reel and Ammo-
Pak available on most models
MF-RX Series - PTC Resettable Fuses
3006 - Trimpot Trimming Potentiometer
Electrical Characteristics
1 Hour (R ) Tripped
1
Initial Max. Time Agency
I I Post-Trip Power
hold trip
Resistance to Trip Recognition
V I Resistance Dissipation
max max
Model
Ohms Ohms Watts
at 23 C at 23 C cUL TV
at 23 C at 23 C at 23 C
Volts Amps Amps Min. Max. Max. Amps Seconds Typ. E174545 R50366745
MF-RX110 60 40 1.10 2.20 0.15 0.25 0.38 5.5 8.2 1.50 3 3
MF-RX135 60 40 1.35 2.70 0.12 0.19 0.30 6.75 9.6 1.70 3 3
MF-RX160 60 40 1.60 3.20 0.09 0.14 0.22 8.0 11.4 1.90 3 3
MF-RX185 60 40 1.85 3.70 0.08 0.12 0.19 9.25 12.6 2.10 3 3
MF-RX250 60 40 2.50 5.00 0.05 0.08 0.13 12.5 15.6 2.50 3 3
MF-RX300 60 40 3.00 6.00 0.04 0.06 0.10 15.0 19.8 2.80
3 3
MF-RX375 60 40 3.75 7.50 0.03 0.05 0.08 18.75 24.0 3.20 3 3
Environmental Characteristics
Item Condition Criteria
Operating Temperature -40 C to +85 C
Recommended Storage +40 C max. / 70 % R.H. max.
Passive Aging +85 C, 1000 hours 5 % typical resistance change
Humidity Aging +85 C, 85 % R.H. 1000 hours 5 % typical resistance change
Thermal Shock -40 C to +85 C, 10 times 10 % typical resistance change
Solvent Resistance MIL-STD-202, Method 215 No change (marking still legible)
Vibration MIL-STD-883C, Method 2007.1 Condition A No change (R < R < R )
min 1max
Moisture Sensitivity Level (MSL) See Note
ESD Classication Class 6 (per AEC-Q200-2, HBM)
Test Procedures and Requirements
Item Test Condition Accept/Reject Criteria
Visual/Mechanical Verify dimensions and materials Per MF physical description
Resistance In still air @ 23 C R R R
min max
Time to Trip 5 times I , V , 23 C T max. time to trip (seconds)
hold max
Hold Current 30 min. at I No trip
hold
Trip Cycle Life V , I , 100 cycles No arcing or burning
max max
Trip Endurance V , 48 hours No arcing or burning
max
Solderability 245 C 5 C, 5 seconds 95 % min. coverage
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov
* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Bourns follows the prevailing definition of halogen free in the industry. Bourns considers a product to be halogen free if (a) the Bromine (Br) content is 900 ppm or less;
(b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.Applications
Almost anywhere there is a low voltage power
supply, up to 60 V and a load to be protected,
including:
n Security and fire alarm systems
n Loud speakers
n Power transformers
MF-RX Series - PTC Resettable Fuses
MF-RX Series - PTC Resettable Fuses
Product Dimensions
C Physical Characteristics
A B D E
Model
Max. Max. Nom. Tol. Min. Max. Style Lead Dia. Material
13.0 18.0 5.1 0.7 7.6 3.1 0.81
MF-RX110 1 Sn/Cu
(0.512) (0.709) (0.201) (0.028) (0.299) (0.122) (0.032)
14.5 19.6 5.1 0.7 7.6 3.1 0.81
MF-RX135 1 Sn/Cu
(0.571) (0.772) (0.201) (0.028) (0.299) (0.122) (0.032)
16.3 21.3 5.1 0.7 7.6 3.1 0.81
MF-RX160 1 Sn/Cu
(0.642) (0.839) (0.201) (0.028) (0.299) (0.122) (0.032)
17.8 22.9 5.1 0.7 7.6 3.1 0.81
MF-RX185 1 Sn/Cu
(0.701) (0.902) (0.201) (0.028) (0.299) (0.122) (0.032)
21.3 26.4 10.2 0.7 7.6 3.1 0.81
MF-RX250 1 Sn/Cu
(0.839) (1.039) (0.402) (0.028) (0.299) (0.122) (0.032)
24.9 30.0 10.2 0.7 7.6 3.1 0.81
MF-RX300 1 Sn/Cu
(0.980) (1.181) (0.402) (0.028) (0.299) (0.122) (0.032)
28.4 33.5 10.2 0.7 7.6 3.1 0.81
MF-RX375 1 Sn/Cu
(1.118) (1.319) (0.402) (0.028) (0.299) (0.122) (0.032)
Package 1
Style 1
How to Order Typical Time to Trip at 23 C
A E
MF - RX 110 - 0 - 14
Multifuse
Product Designator
Series
B
1000
RX = Radial Leaded Component
Hold Current, I
hold
110-375 (1.10 Amps - 3.75 Amps)
100
Packaging Options
D
- Blank = Bulk Packaging without part
number sufx option
10
- 0 = Bulk Packaging with part number
sufx option
C
- 2 = Tape and Reel*
1
NOTE: Kinked lead option is available for
- AP = Ammo-Pak*
board standoff. (See How to Order.)
Part Number Sufx Option
-14 = Kinked leads where straight leads
0.1
are standard
Typical Part Marking
- 99 = RoHS Compliancy
Represents total content. Layout may vary. As of date code April 1, 2005 all
MF-RX models are RoHS compliant.
0.01
MANUFACTURER'S
The sufx -99 was originally provided
TRADEMARK
to help customers distinguish between
PART
RoHS compliant and non-RoHS
IDENTIFICATION
RX110 0.001
LOT NO.
compliant products, but the -99 sufx
(S = CHINA) 110 100
9180S
DATE CODE option is no longer necessary. The -99
(FIRST DIGIT =
sufx option will no longer be available
Fault Current (Amps)
LAST DIGIT OF YEAR;
starting January 1, 2020. See Note
NEXT THREE DIGITS =
for more details.
DAY OF YEAR)
*Packaged per EIA-468
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
Time to Trip (Seconds)