MF-R012/250U-0 Bourns Inc., MF-R012/250U-0 Datasheet - Page 2

• Manufacturer Part Number: MF-R012/250U-0
• Description: PTC Resettable Fuses 250v Max 3Amps Max
• Manufacturer: Bourns Inc.
• Type: Telecom PTC Resettable Fusesr
• Series: MF-RX/250r

Specifications of MF-R012/250U-0

• Hold Current: 0.12 Amp
• Trip Current: 0.24 Amp
• Current Rating (max): 40 Amps
• Resistance: 10 Ohms
• Maximum Voltage: 60 VoltsDC
• Termination Style: Radial
• Mounting Style: Through Hole
• Current Rating: 0.12 Amp
• Dimensions: 6 mm L x 3.8 mm W x 10 mm H
• Lead Spacing: 5.1 mm
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Additional Features
■
■
I trip is approximately two times I hold.
Packaging options:
BULK: 500 pcs. per bag.
Thermal Derating Chart - I hold (Amps)
Product Dimensions
MF-R008/250
MF-R011/250U
MF-R012/250
MF-R014/250
MF-R018/250U
Assists equipment with meeting ITU-T K.20/K.21/K.45
Assists equipment with meeting Telcordia GR-1089-C Intrabuilding
Model
MF-R008/250
MF-R008/250U
MF-R011/250U
MF-R012/250
MF-R012/250U
MF-R014/250
MF-R014/250U
MF-R018/250U
Model
MF-R/250 Series -
D
TAPE & REEL: 1500 pcs. per reel (not available with binned option).
-40 ˚C
0.124
0.171
0.186
0.255
0.269
A
(0.295)
(0.244)
(0.244)
(0.295)
(0.244)
(0.295)
(0.244)
(0.409)
Max.
10.4
7.5
6.2
6.2
7.5
6.2
7.5
6.2
A
C
0.110
0.151
0.165
0.199
0.240
-20 ˚C
Telecom PTC Resettable Fuses
B
(0.453)
(0.453)
(0.453)
(0.453)
(0.453)
(0.453)
(0.453)
(0.496)
Max.
11.5
11.5
11.5
11.5
11.5
11.5
11.5
12.6
B
0.095
0.131
0.143
0.172
0.211
E
0 ˚C
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
(0.201 ± 0.028)
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
5.1 ± 0.7
Ambient Operating Temperature
0.080
0.110
0.120
0.145
0.180
23 ˚C
Max.
C
0.066
0.091
0.099
0.119
0.153
40 ˚C
Customers should verify actual device performance in their specific applications.
(0.197)
(0.197)
(0.197)
(0.197)
(0.197)
(0.197)
(0.197)
(0.197)
Min.
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
D
0.059
0.081
0.088
0.106
0.138
50 ˚C
(0.189)
(0.150)
(0.150)
(0.189)
(0.150)
(0.189)
(0.150)
(0.150)
Max.
4.8
3.8
3.8
4.8
3.8
4.8
3.8
3.8
E
Represents total content. Layout may vary.
Typical Part Marking
DATE CODE
(FIRST DIGIT =
LAST DIGIT OF YEAR;
NEXT THREE DIGITS =
DAY OF YEAR)
PART
IDENTIFICATION
Specifications are subject to change without notice.
0.051
0.071
0.077
0.093
0.123
60 ˚C
Physical Characteristics
Lead Dia.
(0.026)
(0.026)
(0.026)
(0.026)
(0.026)
(0.026)
(0.026)
(0.026)
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0.65
0180T
R012
70 ˚C
0.044
0.061
0.066
0.080
0.109
DIMENSIONS =
Material
MANUFACTURER'S
TRADEMARK
COUNTRY OF
MANUFACTURE
(T = TAIWAN
S = CHINA)
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
Sn/Cu
85 ˚C
0.033
0.046
0.050
0.060
0.087
(INCHES)
MM