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MF-RM055-240 Datasheet(PDF) 2 Page - Bourns Electronic Solutions

Part # MF-RM055-240
Description  MF-RM Series - PTC Resettable Fuses
Download  5 Pages
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Manufacturer  BOURNS [Bourns Electronic Solutions]
Direct Link  http://www.bourns.com
Logo BOURNS - Bourns Electronic Solutions

MF-RM055-240 Datasheet(HTML) 2 Page - Bourns Electronic Solutions

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MF-RX Series - PTC Resettable Fuses
Product Dimensions
Advantages
Resettable feature with overtemperature and overcurrent protection
can save expensive components from having to be replaced after
tripping, e.g., transformers with built in thermal fuses
Faster than bimetallic switch designs that take on average
approximately 30 seconds to cool down and reset
Generally lower electromagnetic interference than bimetallic switches
Benefits
Reduced repair and replacement costs
Reduced nuisance tripping
Combined overcurrent and overtemperature protector in one device
Model
A
B
C
D
E
Physical Characteristics
Max.
Max.
Nom.
Tol. ±
Min.
Max.
Style
Lead Dia.
Material
MF-RM005/240
8.3
12.9
5.1
0.7
7.6
3.8
1
0.51
Sn/Cu
(0.327)
(0.508)
(0.201)
(0.028)
(0.299)
(0.150)
(0.020)
MF-RM008/240
8.3
12.9
5.1
0.7
7.6
3.8
1
0.51
Sn/Cu
(0.327)
(0.508)
(0.201)
(0.028)
(0.299)
(0.150)
(0.020)
MF-RM012/240
8.3
12.9
5.1
0.7
7.6
3.8
1
0.51
Sn/Cu
(0.327)
(0.508)
(0.201)
(0.028)
(0.299)
(0.150)
(0.020)
MF-RM016/240
9.9
13.8
5.1
0.7
7.6
3.8
1
0.51
Sn/Cu
(0.390)
(0.543)
(0.201)
(0.028)
(0.299)
(0.150)
(0.020)
MF-RM025/240
10.0
20.0
5.1
0.7
7.6
3.8
2
0.65
Sn/Cu
(0.394)
(0.787)
(0.201)
(0.028)
(0.299)
(0.150)
(0.026)
MF-RM033/240
11.4
20.0
5.1
0.7
7.6
3.8
2
0.65
Sn/Cu
(0.449)
(0.787)
(0.201)
(0.028)
(0.299)
(0.150)
(0.026)
MF-RM040/240
11.5
20.9
5.1
0.7
7.6
3.8
2
0.65
Sn/Cu
(0.453)
(0.823)
(0.201)
(0.028)
(0.299)
(0.150)
(0.026)
MF-RM055/240
14.0
22.4
5.1
0.7
7.6
4.1
2
0.81
Sn/Cu
(0.551)
(0.882)
(0.201)
(0.028)
(0.299)
(0.161)
(0.032)
Packaging options:
BULK: 500 pcs. per bag.
TAPE & REEL: 2000 pcs. per reel (MF-RM005/240~MF-RM040/240); 1000 pcs. per reel (MF-RM055/240)
D
B
E
LEAD
DIA.
C
A
D
B
E
LEAD
DIA.
C
A
Typical Part Marking
Represents total content. Layout may vary.
RM055
0220S
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
COUNTRY OF
MANUFACTURE
(T = TAIWAN
S = CHINA)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-RM Series - PTC Resettable Fuses
Thermal Derating Chart - Ihold (Amps)
Model
Ambient Operating Temperature
-20 ºC
0 ºC
23 ºC
40 ºC
50 ºC
60 ºC
70 ºC
85 ºC
MF-RM005/240
0.08
0.06
0.05
0.04
0.04
0.03
0.03
0.02
MF-RM008/240
0.12
0.10
0.08
0.07
0.06
0.05
0.04
0.03
MF-RM012/240
0.18
0.15
0.12
0.10
0.09
0.07
0.06
0.04
MF-RM016/240
0.24
0.20
0.16
0.13
0.11
0.10
0.08
0.05
MF-RM025/240
0.38
0.32
0.25
0.21
0.18
0.15
0.13
0.09
MF-RM033/240
0.50
0.42
0.33
0.27
0.23
0.20
0.17
0.11
MF-RM040/240
0.61
0.51
0.40
0.33
0.28
0.24
0.20
0.14
MF-RM055/240
0.80
0.68
0.55
0.46
0.40
0.35
0.29
0.22
0.51 (24AWG)
0.65 (22AWG)
0.81 (20AWG)
Style 1
Style 2
DIMENSIONS:
MM
(INCHES)


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