Thermal Shock ..................................................... -40 °C to +85 °C, 10 times .................................... ±10 % typical resistance change
Solvent Resistance ............................................... MIL-STD-202, Method 215 ................................... No change
Vibration ............................................................... MIL-STD-883C, Method 2007.1,........................... No change
Test Procedures And Requirements For Model MF-RX Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech. ......................................................... Verify dimensions and materials ........................... Per MF physical description
Resistance ............................................................ In still air @ 23 °C ................................................. Rmin
≤
R
≤
Rmax
Time to Trip ........................................................... 5 times Ihold, Vmax, 23 °C ................................... T
≤
max. time to trip (seconds)
Hold Current ......................................................... 30 min. at Ihold ..................................................... No trip
Trip Cycle Life ....................................................... Vmax, Imax, 100 cycles ........................................ No arcing or burning
Trip Endurance ..................................................... Vmax, 48 hours..................................................... No arcing or burning
UL File Number .....................................................E174545
http://www.ul.com/ Follow link to Online Certificates Directory, then enter UL File No.
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** 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.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
Additional Features
n
Bulk packaging, tape and reel and Ammo-
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
Pak available on most models
n
Resettable circuit protection
MF-RX Series - PTC Resettable Fuses
Product Dimensions
Model
MF-RX110
MF-RX135
MF-RX160
MF-RX185
MF-RX250
MF-RX300
MF-RX375
A
Max.
13.0
(0.512)
14.5
(0.571)
16.3
(0.642)
17.8
(0.701)
21.3
(0.839)
24.9
(0.980)
28.4
(1.118)
B
Max.
18.0
(0.709)
19.6
(0.772)
21.3
(0.839)
22.9
(0.902)
26.4
(1.039)
30.0
(1.181)
33.5
(1.319)
C
Nom.
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
10.2
(0.402)
10.2
(0.402)
10.2
(0.402)
Tol. ±
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
0.7
(0.028)
D
Min.
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
7.6
(0.299)
E
Max.
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
3.1
(0.122)
Physical Characteristics
Style
1
1
1
1
1
1
1
0.81 (20AWG)
Lead Dia.
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
0.81
(0.032)
Material
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Packaging options:
BULK: All models = 500 pcs. per bag.
TAPE & REEL: MF-RX110 – MF-RX160 = 1500 pcs. per reel; MF-RX185 – MF-RX375 = 1000 pcs. per reel
AMMO-PACK: MF-RX110 – MF-RX160 = 1000 pcs. per reel; MF-RX185 – MF-RX375 = 500 pcs. per reel
Package 1
A
E
How to Order
Typical Time to Trip at 23 ˚C
MF
-R
MF X110
-R
MF X135
-R
MF X160
-R
MF X185
-R
MF X250
-R
MF X300
-RX
375
1000
100
MF - RX 110 - 0 - 99
B
Multifuse
®
Product Designator
D
Hold Current, Ihold
110-375 (1.10 Amps - 3.75 Amps)
Series
RX = Radial Leaded Component
C
NOTE: Kinked lead option is available for
board standoff. Contact factory for details.
Typical Part Marking
Represents total content. Layout may vary.
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
MANUFACTURER'S
TRADEMARK
RX110
7180T
LOT NO.
(T = TAIWAN
S = CHINA)
Packaging Options
- __ =
Bulk Packaging without part
number suffix option
- 0-99 = Bulk Packaging with part
number suffix option
-2=
Tape and Reel without part
number suffix option*
- 2-99 = Tape and Reel with part number
suffix option*
- AP = Ammo-Pak*
- 0-14 = Kinked leads where straight
leads are standard
- 0-17 = Straight leads where kinked
leads are standard
Time to Trip (Seconds)
10
1
0.1
Part Number Suffix Option
- 99 =
RoHS Compliancy
As of date code April 1, 2005 all
MF-RX models are RoHS compliant.
The suffix “-99” can be used if a new
part number is required to reference
the RoHS compliance,
but including
the “-99” suffix option is not
recommended for new designs.
*Packaged per EIA486-B
0.01
0.001
1
10
100
Fault Current (Amps)
MF-RX SERIES, REV. S, 10/17
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
MF-R, MF-R/90, MF-R/600, & MF-RX, & MF-RX/72 Series
Tape and Reel Specifications
Devices taped using EIA468–B/IEC286-2 standards. See table below and Figures 1 and 2 for details.
Specifications are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specific applications.
max.
-0.5/+0.75
(-0.02/+0.03)
±0.2
(±.0078)
±3.0
(±.118)
±0.5
(±.02)
max.
max.
max.
max.
max.
max.
max.
max.
MF-R, MF-R/90, MF-R/600, MF-RX, & MF-RX/72 Series
Tape and Reel Specifications
IEC
Mark
F
w
d
W1
f
h
h
EIA
Mark
F
W2
a
h
c
n
n
Dimensions
Dimensions
Tolerance
5.08
±0.2
(0.2)
(±0.008)
56.0
max.
(2.205)
370.0
max.
(14.57)
4.75
±3.25
(.187)
(±.128)
26.0
±12.0
(1.024)
(±.472)
80
max.
(3.15)
91
max.
(3.58)
62
355
345
nom.
(2.44) (14.0) (13.6)
64
372
362
max.
(2.52) (14.6) (14.25)
p
Dimension Description
Lead spacing: MF-R, MF-R/90, MF-R/600, MF-RX, MF-RX/72
Reel width
Reel diameter
Space between flanges less device
Arbor hole diameter
Core diameter: MF-R, MF-RX, MF-R/90
Core diameter: MF-R/600
Box: MF-R, MF-RX, MF-R/90
Box: MF-R/600
h
h
Consecutive missing places: MF-R, MF-RX, MF-R/90
3
p
max.
Consecutive missing places: MF-R/600
Empty places per reel: MF-R, MF-RX, MF-R/90
Empty places per reel: MF-R/600
H
1
P
1
A
none
Reference plane
F
L
B
H
0
W
0
W
1
W
p
I
2
p
H
Not specified
H
1
0.1 %
Taped Component Dimensions -
Figure 1
h
h
I
1
P
1
P
0
D
0
Reference plane
F
User direction of feed
Cross section A - B
H
1
H
H
1
L
A
B
H
0
W
0
W
1
W
t
I
2
I
1
P
0
D
0
User direction of feed
Cross section A - B
Reel Dimensions - Figure 2
t
Reel
h
d
f
Reel
h
MM
DIMENSIONS:
(INCHES)
User
direction
of
feed
Upper side
Tape
Lower side
Upper side
Tape
Specifications are subject to change without notice.
User
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
d
direction
Users should verify actual device performance in their specific applications.
Author: Weisheng CHEN, ST engineer
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