Thermal Shock ..................................................... +85 °C to -55 °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
Condition A
Test Procedures And Requirements For Model MF-RX/72 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 Certifications, then UL File No., enter E174545
TÜV Certificate Number ....................................... R 02057213
http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213
* RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
** 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
Resettable circuit protection
n
Bulk packaging, tape and reel and Ammo-Pak available on most models
MF-RX/72 Series - PTC Resettable Fuses
Product Dimensions
Model
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
A
Max.
7.4
(0.291)
7.4
(0.291)
7.4
(0.291)
7.4
(0.291)
7.9
(0.311
9.7
(0.382)
10.4
(0.409)
11.7
(0.461)
10.84
(0.427)
12.26
(0.483)
13.94
(0.549)
15.18
(0.598)
17.84
(0.702)
20.67
(0.814)
23.51
(0.926)
B
Max.
12.7
(0.5)
12.7
(0.5)
13.4
(0.528)
13.7
(0.539)
13.7
(0.539)
15.2
(0.598)
16.0
(0.630)
16.70
(0.657)
16.84
(0.662)
18.26
(0.718)
19.94
(0.785)
21.18
(0.833)
23.84
(0.938)
26.67
(1.050)
29.51
(1.161)
Nom.
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
5.1
(0.201)
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)
C
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)
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)
0.7
(0.028)
D
Min.
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
7.6
(0.30)
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)
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)
3.1
(0.122)
Style
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
Physical Characteristics
Lead Dia.
Material
0.51
Sn/CuFe
(0.020)
0.51
Sn/CuFe
(0.020)
0.51
Sn/CuFe
(0.020)
0.51
Sn/CuFe
(0.020)
0.51
Sn/Cu
(0.020)
0.51
Sn/Cu
(0.020)
0.51
Sn/Cu
(0.020)
0.51
Sn/Cu
(0.020)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
0.81
Sn/Cu
(0.032)
MM
(INCHES)
Packaging options:
DIMENSIONS:
BULK:
500 pcs. per bag.
TAPE & REEL: MF-RX020/72-2 ~ MF-RX090/72-2 = 3000 pcs. per reel; MF-RX110/72-2 ~ MF-RX160/72-2 = 1500 pcs. per reel;
MF-RX185/72-2 - MF-RX375/72-2 = 1000 pcs. per reel.
AMMO-PACK: MF-RX020/72-AP ~ MF-RX090/72-AP = 2000 pcs. per pack; MF-RX110/72-AP ~ MF-RX160/72-AP = 1000 pcs. per pack;
MF-RX185/72-AP - MF-RX375/72-AP = 500 pcs. per pack.
Style 1
A
E
Style 2
A
E
Typical Part Marking
How to Order
Represents total content. Layout may vary.
PART
IDENTIFICATION
MANUFACTURER'S
TRADEMARK
RX110
4180S
LOT NO.
(S = CHINA)
MF - RX 110/72 - 2 - 14
Multifuse
®
Product
Designator
Series
RX = Radial Leaded
Component
Hold Current, Ihold
020-375 (0.20 A - 3.75 A)
Maximum Voltage, Vmax
72 (72 Volts)
Packaging Options
- 0 = Bulk Packaging
- 2 = Tape and Reel*
- AP = Ammo-Pak*
B
B
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
D
D
C
C
Also available with kinked and straight leads in place
of standard leads (see How to Order).
Part Number Suffix Option
- 14 = Kinked Leads in Place of
Standard Straight Leads
- 17 = Straight Leads in Place of
Standard Kinked Leads
*Packaged per EIA 486-B
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-RX/72 Series - PTC Resettable Fuses
Typical Time to Trip at 23 ˚C
MF
-R
MF X020
-R
MF X025
-R
MF X030
-R
MF X040
-R
MF X050
-R
MF X065
-R
MF X075
-RX
090
MF
-R
MF X110
-R
/7
MF X135 2
-R
/7
MF X160 2
-RX /72
MF 185
-R
/7
MF X250 2
-RX /72
MF 300
-RX /72
375
/72
1000
100
Time to trip (Seconds)
Time to Trip (Seconds)
100
10
10
1
1
0.1
0.1
0.01
0.001
0.1
1
10
100
0.01
0.001
1
10
100
Fault Current (Amps)
Fault Current (Amps)
The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specific customer applications
may differ from these values due to the influence of other variables.
Thermal Derating Chart - Ihold (Amps)
Model
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
-40
°C
0.31
0.39
0.47
0.62
0.78
1.01
1.16
1.40
1.71
2.09
2.48
2.87
3.88
4.65
5.81
-20
°C
0.27
0.34
0.41
0.54
0.68
0.88
1.02
1.22
1.50
1.84
2.18
2.52
3.40
4.08
5.10
0
°C
0.24
0.30
0.36
0.48
0.60
0.77
0.89
1.07
1.31
1.61
1.90
2.20
2.98
3.57
4.46
Ambient Operating Temperature
23
°C
40
°C
50
°C
0.20
0.16
0.14
0.25
0.20
0.18
0.30
0.24
0.22
0.40
0.32
0.29
0.50
0.41
0.36
0.65
0.53
0.47
0.75
0.61
0.54
0.90
0.73
0.65
1.10
0.89
0.79
1.35
1.09
0.97
1.60
1.30
1.15
1.85
1.50
1.33
2.50
2.03
1.80
3.00
2.43
2.16
3.75
3.04
2.70
60
°C
0.13
0.16
0.19
0.25
0.32
0.41
0.47
0.57
0.69
0.85
1.01
1.17
1.58
1.89
2.36
70
°C
0.11
0.14
0.16
0.22
0.27
0.35
0.41
0.49
0.59
0.73
0.86
1.00
1.35
1.62
2.03
85
°C
0.08
0.10
0.12
0.16
0.20
0.26
0.30
0.36
0.44
0.54
0.64
0.74
1.00
1.20
1.50
MF-RX/72 SERIES, REV. O 03/17
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.
MM
(INCHES)
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
(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.
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